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Hachioji, Japan

Chuo University

USPTO Granted Patents = 17

% Expired Patents = 35.3

EPO Patents = 8

Forward Citations = 33

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47 inventors (with patents filed for the assignee):

Ken Takeuchi (3 out of 132 patents)

Takeshi Toi (2 out of 3 patents)

Taro Nakamura (2 out of 5 patents)

4. Shigeaki Harayama (2 out of 6 patents)

5. Norihide Kurano (2 out of 3 patents)

6. Kosuke Miyaji (2 out of 2 patents)

7. Fumio Okuda (2 out of 8 patents)

8. Masa-aki Haga (2 out of 2 patents)

9. Shunji Moromugi (1 out of 1 patent)

10. Shuhei Tanakamaru (1 out of 9 patents)

11. Yasuyuki Yamada (1 out of 103 patents)

12. Hisayoshi Sato (1 out of 24 patents)

13. Hiroyuki Nakamura (1 out of 52 patents)

14. Daisuke Matsui (1 out of 6 patents)

15. Daiki Tomita (1 out of 4 patents)

17 patents: Sort by Forward Citations

1. 12631912 - Optical switch element, optical switch device, optical communication system, and optical computer (2026-05-19),

2. 12247560 - Pump unit and pump, and method for detecting characteristics of conveyance article (2025-03-11),

3. 11363967 - Muscle contraction detection sensor (2022-06-21),

4. 10537257 - Biological information reading device (2020-01-21),

5. 10370687 - Genetically modified strain of eukaryotic microalga having improved triglyceride productivity, and use thereof (2019-08-06),

6. 9947396 - Nonvolatile storage device and method of controlling the same (2018-04-17),

7. 9790461 - Culture method and culture system for microalgae (2017-10-17),

8. 9753652 - Memory controller, data storage device, and memory control method (2017-09-05),

9. 9684464 - Semiconductor storage device and control method for same (2017-06-20),

10. 9058737 - Wakefulness-maintaining device and wakefulness-maintaining method (2015-06-16),

11. 8889830 - Hemoglobin-albumin complex, and artificial plasma expander and artificial oxygen carrier containing the complex (2014-11-18),

12. 8640602 - Fluid pouring type actuator (2014-02-04),

13. 8594870 - Operating noise control device and operating noise control method for vehicle (2013-11-26),

14. 7999103 - Metal complex compound and organic electroluminescence device using the compound (2011-08-16),

15. 7828879 - Carbon dioxide absorbing material, method for producing carbon dioxide absorbing material, method for absorbing carbon dioxide, and apparatus for absorbing carbon dioxide (2010-11-09),

Chuo University is a private university located in Tokyo, Japan. It has a rich history spanning over 130 years and is known for its rigorous academic programs, research contributions, and commitment to fostering global perspectives. The university offers a wide range of undergraduate and graduate programs across various disciplines, including humanities, business administration, law, science and engineering, economics, and more. With a strong emphasis on practical education and interdisciplinary approaches, Chuo University aims to nurture competent professionals who can contribute to society and lead in their respective fields.

Profile summary based on public USPTO records.

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USPTO Data Jan 1 1976 - Sep 29 2026

17 Patents

#2 in Hachioji

#3,225 in Japan

#35,857 in the World

Hachioji, Japan

Chuo University

Forward Citations = 33

47 inventors:

Ken Takeuchi (3 out of 132 patents)

Takeshi Toi (2 out of 3 patents)

Taro Nakamura (2 out of 5 patents)

4. Shigeaki Harayama (2 out of 6 patents)

5. Norihide Kurano (2 out of 3 patents)

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