Kato, Takeo



Faculty of Science and Technology, Department of Mechanical Engineering (Yagami)


Associate Professor

Career 【 Display / hide

  • 2007.04

    Toshiba elevator and building systems corporation Mechanical development group, Research and development Dept.

  • 2012.04

    東海大学 工学部 機械工学科

Academic Background 【 Display / hide

  • 2005.03

    Keio University, Faculty of Science and Engineering, Department of Mechanical Engineering

    University, Graduated

  • 2011.03

    Keio University, Graduate School, Division of Science and Engineering, School of Integrated Design Engineering

    Graduate School, Completed, Doctoral course

Academic Degrees 【 Display / hide

  • 博士(工学), Keio University, Coursework, 2011.03


Research Areas 【 Display / hide

  • Kansei informatics

  • Design science

  • Design engineering

  • Robust design

  • Design theory and methodology

Research Keywords 【 Display / hide

  • Bayesian network

  • Robust Optimization

  • Quality Function Deployment

  • Near‐infrared spectroscopy


Books 【 Display / hide

  • デザイン科学概論

    KATO Takeo, 慶應義塾大学出版会, 2018.03

  • プラスチックの逆襲

    KATO Takeo, 丸善プラネット, 2017.06

  • 創発デザインの概念

    松岡由幸、宮田悟志、氏家良樹、加藤健郎、佐藤浩一郎, 共立出版, 2013.10

  • M method - Design Thinking on Multispace -

    Yoshiyuki Matsuoka, Yoshiki Ujiie, Takashi Asanuma, Shuji Takano, Yuichi Izu, Koichiro Sato and Takeo Kato, Kindai-Kagaku-Sha, 2013.07

  • ロバストデザイン-「不確かさ」に対して頑強な人工物の設計法-

    松岡由幸、加藤健郎, 森北出版, 2013.03

Papers 【 Display / hide

  • Brain Activation During Sketch Task for Design Idea Generation Measured By NIRS

    Takeo Kato, Hirotaka Nakatani and Yusuke Ashizawa

    Journal of the Science of Design 5 ( 1 ) 1 - 8 2021.05

    Research paper (scientific journal), Joint Work, Accepted

  • Morphological evaluation of closed planar curves and its application to aesthetic evaluation

    Kato T., Matsumoto T.

    Graphical Models (Graphical Models)  109 2020.05

    ISSN  15240703

     View Summary

    In this study, we defined the order of closed planar curves as a characteristic to reduce the human effort for recognizing the shape. We propose an order index counting mirror and rotational symmetries, along with a calculation method using the autocorrelation function of curvature functions. To confirm the effectiveness of the proposed index, we conducted the experiments using two sample groups of closed curved shapes: the shapes used in Birkhoff's study and silhouettes of humidifiers. The coefficient of determination between the proposed index and sensory evaluation values of these samples were greater than 0.70, supporting the applicability of the proposed index. Additionally, this study calculated the Eysenck's beauty index as the product of the proposed order index and conventional complexity index, and confirmed the correlation between the index and sensory evaluation values of beauty against same closed shape samples. This suggests the possibility to evaluate an industrial design requirement quantitatively, and contributes to develop the automatic shape generation in product design.

  • Approaches for Improving M Method Based on Requirements for Idea Generation Methods

    Daisuke Iseki, Takeo Kato and Yoshiyuki Matsuoka

    Journal of the Science of Design 4 ( 1 ) 39 - 48 2020.05

    Research paper (scientific journal), Joint Work, Accepted

  • Exploring Research Themes of Design Research Based on Multispace Design Model: Analyzing Design Studies and Journal of Engineering Design (2006-2015)

    Yuma Sakae, Takeo Kato and Yoshiyuki Matsuoka

    Journal of the Science of Design 4 ( 1 ) 29 - 38 2020.05

    Research paper (scientific journal), Joint Work, Accepted

  • Gaussian curvature entropy for curved surface shape generation

    Okano A., Matsumoto T., Kato T.

    Entropy (Entropy)  22 ( 3 )  2020.03

     View Summary

    The overall shape features that emerge from combinations of shape elements, such as "complexity" and "order", are important in designing shapes of industrial products. However, controlling the features of shapes is difficult and depends on the experience and intuition of designers. Among these features, "complexity" is said to have an influence on the "beauty" and "preference" of shapes. This research proposed a Gaussian curvature entropy as a "complexity" index of a curved surface shape. The proposed index is calculated based on Gaussian curvature, which is obtained by the sampling and quantization of a curved surface shape and validated by the sensory evaluation experiment while using two types of sample shapes. The result indicates the correspondence of the index to perceived "complexity" (the determination coefficient is greater than 0.8). Additionally, this research constructed a shape generation method that was based on the index as a car design supporting apparatus, in which the designers can refer many shapes generated by controlling "complexity". The applicability of the proposed method was confirmed by the experiment while using the generated shapes.

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Papers, etc., Registered in KOARA 【 Display / hide

Reviews, Commentaries, etc. 【 Display / hide

  • Preface

    Shoji H., Koyama S., Kato T., Muramatsu K., Yamanaka T., Lévy P., Chen K., Lokman A.M.

    Advances in Intelligent Systems and Computing (Advances in Intelligent Systems and Computing)  1256 AISC   v - vi 2020

    ISSN  9789811578007

  • デザインとモデリング - デザイン行為とデザイン思考のモデリングとその応用可能性 -


    Journal of Japan Society of Kansei Engineering (Japan Society of Kansei Engineering)  17 ( 4 ) 180 - 184 2019.02

    Introduction and explanation (scientific journal), Single Work

  • Attractiveness Factors of Plastic in Industrial Design

    Takeo Kato, Yoshiyuki Matsuoka

    Seikei-Kakou (The Japan Society of Polymer Processing)  30 ( 9 ) 458 - 461 2018.08

    Introduction and explanation (scientific journal), Joint Work

  • タイムアクシスデザインに基づく人工物の価値成長デザイン


    Journal of Japan Society for Design Engineering (Japan Society for Design Engineering)  53 ( 2 ) 147 - 152 2018.02

    Introduction and explanation (scientific journal), Joint Work

  • 次世代モビリティのタイムアクシスデザイン


    Journal of Japan Society for Design Engineering (Japan Society for Design Engineering)  53 ( 2 ) 153 - 159 2018.02

    Introduction and explanation (scientific journal), Joint Work

Presentations 【 Display / hide

  • Aesthetic Preference in Closed Planar Curves by Introducing EVE' Theory

    Takemasa Ito, Akihiro Okano and Takeo Kato

    iDECON/MS2021, 2021.09, Oral Presentation(general)

  • Quantification of “Complexity” in Curved Surface Shape Using Gaussian Curvature Entropy

    Akihiro Okano, Taishi Matumoto and Takeo Kato

    The 5th International Conference on Design Engineering and Science, ICDES2020, 2020.11, Oral Presentation(general)

  • Shape Generation System Based on Three-dimensional Classification Method

    Masaya Okamoto and Takeo Kato

    The 5th International Conference on Design Engineering and Science, ICDES2020, 2020.11, Oral Presentation(general)

  • Design Keyword Generation Method Based on Word2vec and Multispace Design Model

    Takeo Kato, Mitsunori Wada and Yasuhide Kishitani

    The 8th International Conference on KEER(Kansei Engineering and Emotion Research) 2020 (Tokyo, Japan) , 2020.09, Oral Presentation(general)

  • Quantification of “Order” in 2D Closed Curved Shapes

    Takeo Kato and Yoshiyuki Matsuoka

    The 14th International Conference on Design Principles & Practices, 2020.03, Poster (general)

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Research Projects of Competitive Funds, etc. 【 Display / hide

  • 不確かさの変化にもとづく感情次元の数理モデル開発と逆問題への応用 研究課題


    MEXT,JSPS, Grant-in-Aid for Scientific Research, 柳澤 秀吉, 基盤研究(B), Co-investigator

  • AIとデザイナによる協調デザインに向けたアイデア発想支援システム


    MEXT,JSPS, Grant-in-Aid for Scientific Research, 加藤 健郎, Grant-in-Aid for Scientific Research (C), Principal Investigator

  • 脳血流計測によるデザイン思考の評価法確立に向けた基礎研究


    科学研究費助成事業, No Setting, Principal Investigator

  • タイムアクシス・デザインの基礎理論を醸成するための枠組みの構築


    MEXT,JSPS, Grant-in-Aid for Scientific Research, 梅田 靖, Grant-in-Aid for Challenging Exploratory Research, Research grant

     View Remarks


  • 創造的な思考におけるスケッチスキルの効果の解明と教育法の提案


    科学研究費助成事業, 伊豆裕一, Research grant, Co-investigator

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Works 【 Display / hide

  • 背もたれ中折れ式車いすのデザイン提案

    木村圭汰, 岡本祐輝, 髙野修治, 加藤健郎, 松野史幸

    平成28年度 日本デザイン学会秋季企画大会, 


  • Mメソッドシステム

    井関大介,余部昇太,加藤健郎, 松岡由幸




    Yoshiyuki Matsuoka, Koichiro Sato, Takeo Kato

    ANBD 2012 Asia Network Beyond Design 2012, 


    Other, Joint

  • Classification System for Robust Design Method

    Takeo Kato, Tetsuo Ikeyama and Yoshiyuki Matsuoka

    Proceedings Workshop on Product & System Design, 


  • Artificial Joint System Interacting with Organism

    Yutaka Kameyama, Masato Inoue, Kimitaka Inaba, Osamu Hatano, Tokuhiro Moriya, Takeo Kato, Kotaro Suga, Makoto Watanabe and Yoshiyuki Matsuoka

    International Workshop on Digital Design, 



     View Details

    International Workshop on Digital Design

Intellectual Property Rights, etc. 【 Display / hide

  • 運転支援装置

    Application No.: 特願2016-145911  2016.07 

    Announcement No.: 特開2018-018185  2018.02 

    Patent, Joint, National application

  • エレベータ巻上げ機

    Application No.: 特願2009-291790  2009.12 

    Announcement No.: 特開2011-131979  2011.07 

    Patent, Joint, National application

  • 治具

    Application No.: 特願2009-218078  2009.09 

    Publication No.: 特開2011-063437  2011.03 

    Patent, Joint, National application

  • エレベータ用レールブラケット

    Application No.: 特願2009-218074  2009.09 

    Announcement No.: 特開2011-063433  2011.03 

    Patent, Joint, National application

Awards 【 Display / hide

  • 日本機械学会 第30回設計工学・システム部門 フロンティア業績表彰

    2020.11, 日本機械学会

    Type of Award: Awards of National Conference, Council and Symposium

  • 日本設計工学会 2019年度春季大会研究発表講演会 優秀発表賞

    2019.09, 日本設計工学会

    Type of Award: Awards of National Conference, Council and Symposium

  • 平成27年度春季大会研究発表講演会学生優秀発表指導教員賞

    2015.10, 日本設計工学会

    Type of Award: Awards of National Conference, Council and Symposium

  • 日本設計工学会 2015年度秋季大会研究発表講演会 優秀発表賞

    2015.10, 日本設計工学会

    Type of Award: Awards of National Conference, Council and Symposium

  • 日本デザイン学会 第58回春季研究発表大会 グッドプレゼンテーション賞

    KATO Takeo, 2011.06, ロバストデザイン概論-安全な社会とものづくりのために-

    Type of Award: Awards of National Conference, Council and Symposium

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Courses Taught 【 Display / hide











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Memberships in Academic Societies 【 Display / hide

  • 自動車技術会, 

  • Design Society, 

  • 日本感性工学会, 

  • The American Society of Mechanical Engineers (ASME), 

  • 日本機械学会, 


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Committee Experiences 【 Display / hide

  • 2021.09

    理事, 日本感性工学会

  • 2021.06

    事業部会,委員, 日本設計工学会

  • 2021.04

    iDECON2021 実行委員会,委員, 日本機械学会

  • 2021.04

    セットベース設計に関する研究調査分科会,幹事, 日本設計工学会

  • 2020.08

    Designシンポジウム2021 運営委員会,委員, デザインシンポジウム

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