The Altshuller Institute

for TRIZ Studies

Updated:29 September 2016



Dear TRIZ Colleagues,


    Toru Nakagawa

         Professor Emeritus, Osaka Gakuin University

"TRIZ Home Page in Japan" has been updated yesterday in the Japanese pages (dated Sept. 29, 2016)

   and the articles are briefly introduced in English in the top page. .

[1] Letters from Readers(Aug. - Sept., 2016N. Takayama, M. Shibuya, T. Yamamoto, Y. Suwa, T. Nakagawa

[2] On the Low-living Elderly Problem: Employee's pension insurance should be applied more widely Yorikazu Suwa (Judicial Scrivener)  

[3] Fuda-Yose Tool and Visual Thinking:

 Part 3: Practices by Nakagawa for Visualization

       Toru Nakagawa




Forum: Letters from Readers(Aug. - Sept., 2016)

Naohiko Takayama, Masaaki Shibuya, Takeo Yamamoto, Yorikazu Suwa, and Toru NakagawaTakayama, in response to 'Do We Have Any Methodology of Creative Research in Academia ?', has made mind maps of James Young's book and of Darrell Mann's book and suggests some parallelism between them. Shibuya has pointed out the recent remarkable advance of statistical science using computers and evaluated that such statistical methods are successful in analyzing real data starting with simple models and obtaining fairly complex results, corresponding to the abstraction and concretization processes in the CrePS methodology. Genom analysis, financial engineering, brain science, speech recognition, etc. are such application areas of success, he says. I have been thinking the data analysis with computers in a somewhat separate framework from the problem solving by humans. But I feel we need to consider the data analysis methods with more weights in our CrePS methodology. Yamamoto sent me a comment in late June that we should consider the high risk of Japanese financial catastrophe more seriously in parallel to the poverty problem. He communicated to me again in response to my visual diagram of Professor Hiroshi Yoshikawa's lecture on 'Financial reconstruction and Japanese economy'. Suwa contributed his thoughts on the Low-living Elderly problem, based on his experiences of meeting a number of LLE people in his job as a judicial scrivener. His communication is posted in a separate page [2].

[2] Social Problem:

On the Low-living Elderly Problem: Employee's pension insurance should be applied more widely Yorikazu Suwa (Judicial Scrivener)   The contributor, Mr. Suwa, worked in sales divisions in a big company and after retirement he became a judicial scrivener. Servicing for lawsuits at Summary Court, he met a number of low-living elderly people who are suffering from debt in consumer finance. From such a background, he writes his thoughts in an sample case: A woman who worked for 30 years as a secretary in a foundation is now old in age with no family/relatives and in a hospital. So the foundation is asking its members for raising money for her medical care. She does not have employee's pension, as a matter of fact. In 1975 when she started working at the foundation, Employee's Pension Insurance (which is to be paid half and half by the employee and the employer) in Japan may not be applied to corporations with less-than 5 employees. In 1981 the Employee's Pension Act was changed so that any corporation has to apply the employee's pension to all its employees. But the Act was not enforced strictly and many corporation, including her foundation, did not join the insurance. Missing the chances of joining the insurance, or intent violation by corporation employers, is one of the most significant factors for many elderly people to fall down into low-living situations.

In 1981, a notice was issued by the director of Health Insurance Department of Ministry of Health and Welfare, saying "The part-time employees working for the time length less-than 3/4 of the regular employees are not applicable for the Employee's Pension Insurance". This notice is a big problem because it excluded a huge number of non-regular employees out of the benefits of Employee's Pension.

-- Since I have few chances of facing real situations of poverty in the society, I am not good at thinking and talking on real sample cases. Suwa contributed to explain focal points of real problems on the basis of his experiences. He is another old friend of mine at the YMCA dormitory of the University of Tokyo. I deeply thank him for his valuable contribution.


[3] CrePS Introductory:

Fuda-Yose Tool and Visual Thinking: Part 3: Practices of Using the Fuda-Yose Tool:         Practices by Nakagawa for Visualization Toru Nakagawa

This is the Part 3 of the series of papers jointly written by Akihiro Katahira and Toru Nakagawa.

In this Part 3, Nakagawa describes his practices of using Fuda-Yose method at the phases when the problem has become clearer and some notes/documents are written either by him/herself or by other person(s). The purposes of using the Fuda-Yose tool is to clarify the logics in the documents by making visualized diagrams and to share the understanding with many other people. I explain the basic thoughts of my practices, first, and then describe the concrete process of making visualizing diagrams for the documents typically of the length from half a page (e.g., abstract of a paper) to about 20 pages (e.g., an article/paper, or a chapter of a book). Cases of visualizing practices are chosen from my reports already posted in this "TRIZ Home Page in Japan":

they are

(1) Abstract of Ed Sickafus' paper, and five chapters of Takanori Fujita's "The Low-Living Elderly" book (including;

(2) Introduction,

(3) Cases of falling into the LLE situations,

(4) Higher risks of LLE in near future,

(5) Feelings and thoughts by ordinary people on LLE, and

(6) Author's proposals of LLE policies), and

(7) Lecture note by Prof. Hiroshi Yoshikawa on 'Financial reconstruction and Japanese Economy'. For each example, I explain the process of making the visualizing diagrams, ideas for improving the diagram representation, the finished (rather detailed) diagrams and their simplified versions made on readers' requests, etc.

These examples demonstrate that the visualization with Fuda-Yose Tool is useful for clarifying the logics in documents on complex themes like these social problems. It is required to visualize the logics in much larger documents with different arguments (because all significant social problems and political issues are such cases). Our strategy should be 'Segmentation and Hierarchical structuring'; we need to demonstrate it from now on.

Best wishes,

Toru Nakagawa

"TRIZ Home Page in Japan" has been updated last night

   (dated Apr. 21) in English and in Japanese.




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