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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),

Company Overview

Chuo University, located in Hachioji, Japan, is a prominent institution known for its comprehensive educational offerings and research initiatives. The university specializes in various fields, including law, economics, and engineering, fostering innovation and academic excellence. With a strong emphasis on interdisciplinary collaboration, Chuo University engages in advanced research across technology domains, contributing to societal development and addressing contemporary challenges. Its strategic location in Japan enhances its role in the global academic and research landscape.

Profile summary synthesized from public USPTO records and patent filings.

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USPTO Data Jan 1 1976 - Oct 20 2026

17 Patents

#2 in Hachioji

#3,230 in Japan

#35,948 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)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Chuo University. Retrieved from https://idiyas.com/company/chuo-university

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

Data Sources: USPTO Patent Grant XML, Patent Center, EPO & CIPO • Normalized by IDiyas Innovation Graph. Methodology & provenance architecturePlease report any incorrect information to [email protected]

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