TRIZ HomePage in Japan  Logo   

   Last Updated:  July 28, 2014
  Editor:  Toru Nakagawa 
  (Professor Emeritus, Osaka Gakuin Univ.)
  Last Updated:   July 28, 2014


This home page serves as an open forum of information exchange for better understanding and usage of TRIZ ("Theory of Inventive Problem Solving"), especially based in Japan.  Readers' contributions are very welcome, including introductory articles, papers, technical reports, case studies, news and topics, questions, comments, etc.  (Established on November 1, 1998.)  ==> Operation policy

Pages under this directory are the English versions. 
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visits since Nov. 1, 2005

Pages written in Japanese are accessible by clicking the  buttons.   Best efforts are tried for two-way translation between English and Japanese, but some pages appear only in either of the languages.  

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  "TRIZ Practices and Benefits" Books Disaster

General index New Information Introduction to TRIZ TRIZ References TRIZ Links TRIZ News & Activities TRIZ Software Tools TRIZ Papers and Tech Reports TRIZ Lectures TRIZ Forum General index

New Information    [Articles posted/updated within these 6 months.  marks within 3 months.]

Publication announcement: "TRIZ Practices and Benefits" Series (in Japanese): Vol. 3S: "Hierarchical TRIZ Algorithms (for Novices)" published; and 10% OFF Sales of the Whole Set of the Series (Toru Nakagawa (CrePS Institute)) (Jul. 28, 2014)
An introductory volume is now published as: Vol. 3S "Hierarchical TRIZ Algorithms (for Novices) -- Illustrated Course Material".    Printed Edition: Soft cover, B5 size, 56 pages, full color, 1200 yen + tax, Print-on-Demand at DLmarket site.  It contains: Introduction (by Nakagawa, 1 page), Author's Preface (7 pages), and Introduction part and 'Symple Version' of each chapter of the Vol. 3 book, as specified by the Author.  Concise and cheap, readable with a lot of illustrations.
The whole set of the series (currently of 4 vlumes) are sold at 10% OFF.



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-- TRIZ Forum: From Readers : Discussions on "TRIZ and Lean (and others)" (Toru Nakagawa (OGU), Yoichi Hasegawa, Osamu Kumasaka, Toshihiro Hayashi, Masao Ishihama (Kanagawa Inst. of Tech.), Tomomi Murata (Kita-Kyushu City Univ.), Naohiko Takayama (Shimadzu)) (Jul. 13, 2014)
Inspired by the paper "Lean-TRIZ instead of TRIZ-Lean" by C.M. Thurnes et al (Germany), we in Japan recently have some active discussions among the readers of this site.  In the Japanese page, email discussions among the seven persons are posted, while in the English page Nakagawa's messages and Takayama's Mind Map are shown.
On reading the paper, Nakagawa has found a lot for us to learn, think, and act, and wrote Editor's Note (PS) in the Japanese page, which is now translated into English.  Hasegawa responded to it intensively especially with a survey of the historical relationships in the development of Ford mass production system => Toyota production system (or Lean engineering) => TOC (Theory of Constraints).  Hayashi discusses the differences in the purposes of Toyota production system and TRIZ problem solving methodology and argues not to discuss them like alternatives.  Takayama shows the complementary relationships between TRIZ and Six sigma and suggests to clarify such relationships between TRIZ and Lean.  Nakagawa briefly reported about an open lecture by Toyota CEO Chairman Mr. Takeshi Uchiyamada on "Development of PRIUS".  He was the chief engineer of the PRIUS development project.  The ways of developing PRIUS were utterly different from the ordinary Toyota ways of developing new cars, and almost entirely opposite of Lean engineering, he says.   

-- Announcement: Publication Announcement of the Japanese Edition: Larry Ball's "Hierarchical TRIZ Algorithms -- Illustrated Course Material from Novices to Experts" (T. Nakagawa (CrePS Institute)) (Jun. 30, 2014)
Authored by Larry Ball, Japanese translation by Toshio Takahara and Toru Nakagawa, Published by the CrePS Institute, on Jun. 30, 2014.  Printed Edition: Soft cover, B5 size, 208 pages, full color, 4200 yen + tax, Print-on-Demand at DLmarket site.  Downloading Edition: PDF, A4 size, 208 pages, 2400 yen + tax, Digital downloading at DLmarket site.
The main body is the 160-page course materials posted in the "TRIZ Home Page in Japan" in 2006-2007 in Japanese translation .  In front of it, the book contains the introduction and the slides with annotation of the Keynote Lecture presented at Japan TRIZ Symposium 2007, as well as the new Preface by the author .  For making the most of so many illustrations, all pages are printed in color.
This is an excellent textbook of modernized TRIZ.  The author advocates that the decisions in the product development process should follow the logical pre-post relationships. The principal stages should be: Business and market needs => What system does => Identify pivotal functions => Idealize functional components => Idealize attributes of functional components.  These stages form the hierarchy of decisions, and hence a consistent flow of procedures.  During the processes of idealizing the functions and attributes, there appear various problems and contradictions, for which TRIZ tools can be used effectively.  Especially, the author demonstrates a large number of viewpoints of separation of Physical Contradictions, beyond classical TRIZ tools.  There are full of illustrations of small cases for explaining the concepts/processes.  The textbook is easy to understand and enjoyable for beginners, and yet is challenging for experts. 
For purchasing, please refer to the publication announcement page of the Series and access to the product page of CrePS Institute in the internet DLmarket site.  See the Flyer:

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-- TRIZ Introduction Paper:  "Hierarchical TRIZ Algorithms" and Its Further Development (Larry Ball (USA), Japanese translation: T. Nakagawa)  (Jun. 30, 2014)
Preface for the Japanese Edition of Larry Ball's "Hierarchical TRIZ Algorithms", published by the CrePS Institute.
A 7-page Preface newly written down by the author for the Japanese Edition.  "Hierarchical TRIZ Algorithms" was originally posted in the TRIZ Journal in 2005-2006 and was presented in his Keynote Lecture at Japan TRIZ Symposium 2007.  The present article describes its essence reflecting his further development.  He has decomposed all the TRIZ tools together with various other methods related to product development and market development, and has reorganized them into an integrated process.  The guideline for the reconstruction is to clarify the input/output information of processes and to follow the logical pre/post relationships among the processes; he calls it a hierarchy of decision and finds a hierarchical algorithms for product development.  There are cases when an engineer comes up with an idea of a product, draws a prototype design, and requests for the funding.  Such cases fail very often, as statistics show, because he has started the project at a down stream after arbitrarily assuming the information to be decided at upper streams, the author says. The Hierarchical TRIZ Algorithms advises the transfer from 'selling what we can make' to 'making what we can sell'. 

--  TRIZ Forum: From Readers : Letters from Readers (May -  . 2014) (Jun. 30, 2014)
(N. Bogatyrev (UK), K.W. Lee (Korea), B. Fowlkes (USA), Jiang Guixing (China), U. Mishra (India), J. Hipple (USA), O. Bogatyeva (UK), T. Nakagawa / [In Japanese page] T. Hayashi, T. Murata, N. Takayama, K. Ikeda)
Among the communications I have received recently, I am posting here some of those suitable for open discussions.   Papers posted recently seem to attract much attention, e.g. 'TRIZ Activities in Korea' (K.W. Lee (Korea)), 'A New System of 111 Standards (D. Russo et al. (Italy)), 'Lean-TRIZ instead of TRIZ-Lean' (C.M. Thurnes et al. (Germany)).  K. Ikeda (Sekisui Engineering, Japan) contributed a Message on the publication of the Japanese Edition of Larry Balls "Hierarchical TRIZ Algorithms.
[Added in the English page (Jul. 28, 2014)]S.S. Arshad (Australia), G. Severinets (Korea), J. Kowalick (USA), E. Domb (USA)
Dr. Kowalick, Co-founder of the TRIZ Journal in 1996 and one of the TRIZ leaders in USA in 1990s, communicated with me about his years of activities using TRIZ.

-- TRIZ Paper:  Lean-TRIZ instead of TRIZ-Lean (C.M. Thurnes, F. Zeihsel (Germany); Introduction & Japanese translation (T. Nakagawa))  (May 31, 2014)
An excellent paper presented last October at ETRIA TFC 2013.   Recently in many companies in Germany the "Lean" (i.e. Toyota's production/development system) has been introduced actively.  Even though Lean and TRIZ are the methodologies having the targets in common, in fact Lean practitioners rarely use TRIZ even though they are aware of it.  Is there any way to integrate the two methodologies, or for TRIZ to play a significant role in the Lean situations?  
Initially the authors proposed and tested the "TRIZ-Lean" approach where the TRIZ principles (e.g., Inventive principles and ideality) are explained or concretized with the ideas and examples in Lean.  But Lean practitioners rarely found its significance, saying "Lean is good enough without TRIZ". 
Then they found a new approach, "Lean-TRIZ", where in the Lean prevailing situations TRIZ should be used at the Lean's blind/weak points for supporting Lean.  More concretely, the problems which are recognized as 'necessary wastes (NVA)' in Lean are defined as contradictions and are solved with ordinary TRIZ tools.  In the Lean product development process, several TRIZ tools are used.  On the occasions of 'events' in Lean, TRIZ sessions/workshops fit well to work for these purposes. The Lean-TRIZ approach has been tested and has obtained positive evaluations by Lean practitioners.  In practice, the authors advise to respect the Lean philosophies such as 'Test to design' and 'Set-based concurrent development' and to perform TRIZ in relatively short subsessions.  
In the Japanese page , I posted the paper (HTML), slides (PDF), my introduction, and some of my thoughts.  In the English page, only Nakagawa's introduction to the paper is posted; no links to the paper and the slides because they are not yet publicized by ETRIA. 

-- TRIZ Paper:  Freeform Innovation and Ideative Energy (S. Saleem Arshad (Australia))  (May 14, 2014)
'Freeform Innovation' proposed here by the author is a simple and powerful process for generating creative ideas, as is explained and demonstrated with a simple example.  In this concise paper of 10 pages we can understand the basic approach of FI, which has just a two-step structure, i.e., 'Active Observation' and 'Active Thinking'.  The process is driven intuitively and effectively with the emphasis of improving/adding functionality.  In combining and then uniting the ideas/functions of A and B, the author uses the notations like A+B and then (AB).  The present paper contains some more new terms and new concepts, e.g., Ideative energy (on the user side and on the product side), Flow of ideative energy, etc.  They must have a wealth of potential for further investigation and discussion. 

(Neighborhood, Kashiwa)
(May 9, 2014, Toru)
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-- TRIZ Paper:  Understanding Secrets of Sustainability through TRIZ Philosophy (Umakant Mishra (India))  (May 14, 2014)
A clearly written overview paper discussing on the 'Sustainability' in a general and conceptual level. The philosophy (not individual tools) in TRIZ has guided the understanding.  Such TRIZ concepts are: Cause-effect relationships; Super-, Sub-, and Co-Systems; Resources; Contradictions; Ideality; etc. The paper is written in an abstract and conceptual level and yet very clearly to discuss the real problems to solve and goals to achieve the Sustainability. How to achieve the Sustainability still need to be investigated; I wish to read the author's forthcoming paper.

-- TRIZ Forum: From Readers : Letters from Readers (Jan. - Apr. 2014) (Apr. 30, 2014)
A. Narayan (USA), N. Rubin (Russia), E. Domb (USA), R. C. P. Thalupuru (India), R. Singh (India), D. Cavallucci (France), D. Verduyn (USA), M. Karimi (Iran), SB Khoh (Korea), S. Misman (Malaysia), I. Bukhman (USA); [In Japanese page] H. Hibino, Te. Sadahiro, T. Nakagawa, H. Kanno
Among the communications I have received recently, I am posting here some of those suitable for open discussions.   Anita Narayan, a mom of a 5 year old, learns the CID Course material for 1-3 graders we posted here in 2001-2002  and has started communication with Natalia Rubina. Promotion case studies in Japanese industries and those especially in Korea (Prof. K.W. Lee' paper) attracted much interests of readers.  

Cherry blossoms (multipetal type)
(Reitaku Univ., Kashiwa)
(Apr. 17, 2014, Toru)
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-- TRIZ Paper:  Methodology: From Altshuller’s 76 Standard Solutions to a new Set of 111 Standards (Davide Russo, Stefano Duci (Italy)); Introduction (T. Nakagawa); Japanese translation (T. Takahara, T. Nakagawa)  (Apr. 30, 2014)
This paper was presented last October at ETRIA TFC2013.   G. Altshuller originally developed the Su-Field Modeling to focus down the problem situation into a minimal system model and the Inventive Standards to recommend some suitable solution strategies according to the problem types.  However, for ordinary TRIZ users, his Triad representation looks particular and the system of 76 Standards seems difficult to parse; and hence these two methods have not been used so widely.  The present authors have reorganized these two methods by following Altshuller's original aims: First, the authors adopted the commonly used concepts of functional analysis for modeling the minimal system.  Then the problem situations are classified into the cases of 'Harmful/Excessive action' and 'Insufficient/Missing action' (besides the cases of 'Measurement/Detection' and 'Incomplete minimal system').  Solution strategies for the 'Harmful/Excessive action' are expressed with 6 different verbs: 'Deflect', 'Block', 'Make unable', 'Make insensitive', 'Combine (the system)', and 'Reduce' the harmful action. Similarly for 'Insufficient/Missing action' the strategies are expressed with different 6 verbs.  Such strategies are called 'Actions'.   The Actions can be applied onto the elements of the minimal system in only 4 ways, i.e., 'Add a substance', 'Modify a substance', 'Add a Field', and 'Modify a Field'.  These 4 ways are named 'Suggestions', and are described in more detail by using the information contained in the original 76 Standards. Thus the present authors have proposed a new, reorganized system of Standards, composed of 25 'Action-Suggestion' pairs of solution strategies.  
*** The new system has a simple overall structure and easy-to-understand description of individual Standards.  This is an excellent paper in modernized TRIZ methodology.  I wish that the world TRIZ community accept this new system for wider penetration.
In the English page: Introduction by Nakagawa , but no links to the paper and slides yet, waiting for ETRIA's approval.
In the Japanese page: Introduction by Nakagawa, Paper and Slides in Japanese translation.

Announcement: Publication Announcement of the Japanese Edition: Darrell Mann's "Matrix 2010: Re-updating the TRIZ Contradiction Matrix" (Toru Nakagawa (OGU and CrePS Institute)) (Apr. 17, 2014)
As the second volume of "TRIZ  Practices and Benefits" series, we have just publised the Japanese Edition of Darrell Mann's "Matrix 2010" (Japanese translator: T. Nakagawa). 
'Contradiction Matrix' is known as a typical method in TRIZ, but in fact it had a peculiar history of development and evaluation.  The Contradiction Matrix published today in most (i.e., except Mann's) TRIZ textbooks is the one of size 39×39.  It was originally developed by G. Altshuller with tremendous paper-and-pencil efforts by the beginning of 1970s.  Engineers at that time, and nowadays as well, were much attracted to it with the great vision and results.  However, Altshuller himself evaluated its usefullness below his expectation, and hence he omitted this method from ARIZ in mid 70s and did not recommend it any longer to his students.  When TRIZ was introduced to the Western world in 90s, basic and earlier knowledge of TRIZ was mostly brought in, and Contradiction Matrix became popular.  It has been used in the old form, because updating it would need a huge work. 
Darrell Mann et al started the big project of updating Contradiction Matrix in 2000; they analyzed all the US patents granted since 1985 with full usage of modern IT tools.  Their Matrix 2003 is of size 48×48, while Matrix 2010, size 50×50.  Categorization into parameters and the suggestions of applicable Principles have become easier to understand and apply.  I believe that we should use the updated Matrix instead of the original/old one, for appreciating and furthering the vision and philosophy of our TRIZ Father.

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At the DLmarket site , the book (Softcover B5 size, 154 pages, Print-on-Demand, 2600yen+tax) and the digital files (Downloading, 1800yen+tax) are available.  See the detail page and the flyer .   On request from the book purchaser, two A2-size sheets of Matrix 2010 and its parameters & principles will be delivered without charge.

-- TRIZ Paper: TRIZ Propagation: Effective strategy to introduce and propagate TRIZ into companies based on the bad and good experiences in Korea (Kyeongwon Lee (Korea & France)),Bibliography and Japanese translation (Toru Nakagawa (OGU))  (Apr. 2; Apr. 9, 2014)
Paper presented last October at ETRIA TFC2013.  Korea is the country most successful in introducing, propagating and applying TRIZ in industries, among the countries in the world.  In the initial stage of introducing TRIZ in Korea (ca. 1996 - 2005), TRIZ was not accepted widely because of various barriers and bad experiences, the Author says.  The situation was changed by the success of practical industrial examples developed in Samsung by Russian TRIZ experts employed at TRIZ promotion department.  Executives of Samsung recognized the success, and promoted to develop education and training programs and expand the application of TRIZ to real projects. Such TRIZ activities were expanded to other big industries in Korea, and were carried out with much enthusiasm as a big movement in Korean industries, he says.  On the basis of 'bad' and 'good' experiences, the author suggests 'Effective strategies' for introducing and propagating TRIZ in industries. PDF files of the paper and the slides in English, and the Japanese translation of the paper  [Note (TN, Apr. 9, 2014):  According to ETRIA's request, I have temporarily closed the links to the original English paper and English slides, until they are posted openly by a publisher's site.  My introduction in this English page and the Japanese translation version remain being posted.  I am going to post several other TFC papers in a similar way.] 
I collected the papers concerning to TRIZ activities in Korea as a bibliography.  There are about 40 papers (including original papers/presentations and my own introductions to them in my Personal Reports of conferences), having direct links mostly in this Web site and some in other official sites. 

-- TRIZ Forum: Southbeach Forum: Brief Guide of How To Use the Southbeach Modeller (in the Editor Mode) (Toru Nakagawa (OGU))  (Apr. 2, 2014) (in Japanese Jun. 9, 2013)
The Southbeach Modeller is a very sophisticated and excellently designed software tool.  It has so many functions, features, and options, and yet is shown on the window in a very compact way.  It has a rich library of white papers, specifications, demo videos, sample outputs, and examples made by developers and users.  The usage of the software is mostly intuitive.  However, its users meet some difficulty for starting up.  Thus I wrote this Guide a year ago, for assisting the beginners to get started in using the Southbeach Modeller in the Editor Mode (i.e., for building the models).  And today I am posting it in English translation.

Cherry Blossoms
(Apr. 1, 2014, TN)
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 -- TRIZ Education Case study: "12 Years of Lecture and Seminar Classes on 'Methods of Creative Problem Solving' " (Toru Nakagawa (OGU))  (Mar. 16, 2014)
A poster presented at the 2nd Conference of Innovation Education Society, held on Mar. 10-11, 2014 at Keio University, Yokohama.  The 'Innovation Education Society' of Japan was established last year.  Its core groups are 3 prestigious universities, i.e., 'i.school' of the University of Tokyo, SDM (System Design Management Course) of Keio University Graduate School, and QREC (Robert T. Huang Entrepreneurship Center) of Kyushu University.  The society is going to develop and promote the methods and systems for educating the motivation, mind sets, skills and techniques, leadership etc. necessary for achieving innovation, towards undergraduate and graduate students (and young engineers and business people).  The conference this year obtained over 200 participants from universities and industries, and over 40 case studies presented with posters in parallel.  Most people are interested in how to motivate and acquire skills in social and business oriented areas.  I presented my 12 years of experiences of education at OGU in the field of (technical) creative problem solving, which forms the basis of 'Innovation' in most cases, I believe. 8 slides in Japanese.

-- TRIZ News in Japan:

Japan Creativity Society (JCS) is going to hold 36th Annual Conference on Oct. 25-26, 2014  (Jul. 28, 2014)

Japan TRIZ Society (JTS) is going to hold 10th TRIZ Symposium in Japan on Sept. 11 - 12.   (Mar. 16; Jul. 28, 2014)

-- TRIZ News:  TRIZ News Outside Japan

ICSI 2014 is to be held on Jul. 16-18, 2014, at San Jose, California, USA. (Mar. 16, 2014)

Korea: 5th Global TRIZ Conference 2014 in Korea (KoreaTRIZCON2014) is to be held on Jul. 8-10, 2014 at Seoul, Korea(Mar. 16, 2014)

TRIZfest-2014 Conference and related events will be held on Sept. 4 - 6, 2014 in Praha, Czech Republic.  (Mar. 16, 2014)

ETRIA TRIZ Future Conference 2014 will be held on Oct. 29-31, 2014 in Lausanne, Switzerland (Mar. 16, 2014)

TRIZCON2014 is under preparation to be held around October, 2014 (Mar. 16, 2014)
TRIZCON2013 was held on Dec. 5, 2013 at Post Univ., CT, USA (Mar. 16, 2014)

-- Announcement: "TRIZ Practices and Benefits" Book Series Are Now Available in Print on Demand (Toru Nakagawa (OGU and CrePS Institute)) (Mar. 10, 2014)

-- Announcement: Publication Announcement of the Revised Japanese Edition: Darrell Mann's "Hands-On Systematic Innovation with Matrix 2010" (Toru Nakagawa (OGU and CrePS Institute)) (Feb. 16; Mar. 10; Apr. 17, 2014)
The book series "TRIZ Practices and Benefits" in Japanese has been restarted in publication by 'CrePS Institute'.  The original Vol. 1 of the series was our Japanese edition of Darrell Mann's excellent textbook "Hands-On Systematic Innovation" (HOSI) . It is now replaced with the revised version Vol. 1A "HOSI with Matrix 2010" in short. Using the latest Matrix in the textbook HOSI is quite natural for the author and for us readers. Thus, under the author's approval, I have revised the text at the minimum level while including Matrix 2010 in its full extent.  Darrell Mann's new preface is shown in this English page.  In the Japanese page, detailed information, e.g. Nakagawa's preface, table of contents, and a large number of "Notes for the Revised Japanese Edition" (Toru Nakagawa) in relation to Chapter 10. Technical Contradiction and Contradiction Matrix 2010.  The new Japanese edition is now available through Print on Demand and digital downloading at DLmarket site. (Mar. 10, 2014).
Flyer in PDF (Apr. 17, 2014).

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-- Announcement: Publications of Book Series "TRIZ Practices and Benefits" by CrePS Institute (Toru Nakagawa (OGU and CrePS Institute)) (Feb. 16; Apr. 17, 2014)
Nakagawa published (or prepared for publication) five books from Sozo Kaihatsu Initiative, Ltd. (SKI) as the main translator (See ).  After a gap of one year since SKI's quitting its business, I have decided to restart the publication of the books by starting CrePS Institute as a publisher.  The books are available in the form of digital downloading of PDF files and also Print on Demand from the CrePS Institute page stored in an internet downloadiing site 'DLmarket' in Japan .  (Unfortunately, printing and binding the books need to be done, if necessary, by the customers. ==> DLmarket has started its Print on Demand service since Feb. 20, 2014.  Thus the book is now available in a nicely bounded print with soft cover of B5 size. (Mar. 10, 2014))  The present page shows the table of publications (including those under preparation) and the guide for purchasing them.
"(1A) HOSI with Matrix 2010" by Darrell Mann (Japanese translation by T. Nakagawa et al.) published. (Feb. 16, 2014)
"(2A) Matrix 2010" by Darrell Mann (Japanese translation by T. Nakagawa) published. (Apr. 17, 2014)

--  Editorial: Message: Start of CrePS Institute and publication of "TRIZ Practices and Benefits" book series (Toru Nakagawa (OGU and CrePS Institute)) (Feb. 16, 2014)
For starting the publication of TRIZ book series, it has become necessary for me to take the official business responsibility as a publisher.  So I have just started 'CrePS Institute', a sole proprietorship, and have become its Director.  Its activities are to be: Research, education, and proliferation activities of creative problem solving methods (e.g., TRIZ, USIT, CrePS, etc.). 


General Index    [Categorized table of all articles (in English/Japanese) accessible with a single click.] 
                                       [Kept always up to date.  (Checked and improved on Jan. 9, 2013)]

  Category   Brief explanation
Classified in their categories, and arranged in the chronological order (the latest at the top) in each (sub-) category.  Individual articles can be accessed with a click.

Detailed index
(Separate pages)

Japanese pages
(short form)
New Information Brief introduction to all the articles in the historical order, the latest at the top.
Introduction to TRIZ What is TRIZ?  Introductory articles for new readers of TRIZ.
TRIZ References TRIZ textbooks, WWW references, and bibliography
TRIZ Links TRIZ sites in Japan and in the World; selected/extensive lists
TRIZ News and Activities [News and activities in Japan and in the World]:
Nakagawa's activities ; Activities in Japan (Japan TRIZ Society, (former) Japan TRIZ CB); Activities overseas (Russia, USA, Europe, Asia, etc.)
TRIZ Software Tools TRIZ Software tools and their usage
TRIZ Papers and Technical Reports [Articles in Japan and in the world; contributions from readers, and articles by Nakagawa]:
Papers ; Case-Studies (application & promotion); Presentations, Research/Technical reports ; Introductory and review articles .
TRIZ Lectures and Course Materials; Articles in TRIZ Related Areas [Articles in Japan and in the world; contributions from readers, and articles by Nakagawa]:
Classics in TRIZ; Course materials and textbooks ; Lecture notes in TRIZ ; Lecture notes in relevant areas; Introductory articles in relevant areas.
CrePS Methodology [General methodology for creative problem solving and task achieving (CrePS)]
Systematized Documents of CrePS
TRIZ Forum Conference/seminar reports; Book reviews ; Communications, discussions, questions, comments, etc.; Collabo pages

"TRIZ Home Page by Students for Students" :  Established by Nakagawa's Seminar class at OGU.  (Mar. 18, 2006), Updated (Mar. 19, 2007)


General index New Information Introduction to TRIZ TRIZ References TRIZ Links TRIZ News & Activities TRIZ Software Tools TRIZ Papers and Tech Reports TRIZ Lectures TRIZ Forum General index
Home Page New Information Introduction to TRIZ TRIZ References TRIZ Links TRIZ News & Activities TRIZ Software Tools TRIZ Papers and Tech Reports TRIZ Lectures TRIZ Forum Home Page

  Questions, comments, submissions, etc. on this home page are welcome via e-mail to:
    Toru Nakagawa,  Dr.,  Professor Emeritus, Osaka Gakuin University
    E-mail: nakagawa@ogu.ac.jp [The same as before retirement.   Email is the main communication channel.]
    (Home)   3-1-13 Eirakudai, Kashiwa, Chiba 277-0086, Japan.    Phone & FAX:  +81-4-7167-7403