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For the Inventor, By the Inventor

Osaka, Japan

Figaro Engineering Inc.

Calculating rank
USPTO Granted Patents = 46

% Expired Patents = 8.7



Trademarks = 2

Forward Citations = 302

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87 inventors (with patents filed for the assignee):

goldMedal Tomohiro Inoue (10 out of 105 patents)

silverMedal Kuniyuki Izawa (7 out of 7 patents)

bronzeMedal Kenichi Yoshioka (5 out of 5 patents)

4.  Yuki Fujimori (4 out of 4 patents)

5.  Masakazu Sai (4 out of 4 patents)

6.  Hideki Okoshi (4 out of 4 patents)

7.  Yoshihiro Yamamoto (3 out of 3 patents)

8.  Junpei Furuno (3 out of 3 patents)

9.  Masato Takeuchi (3 out of 3 patents)

10.  Yoshinobu Matsuura (3 out of 3 patents)

11.  Katsuyuki Tanaka (3 out of 3 patents)

12.  Yuki Kato (2 out of 3 patents)

13.  Takeshi Nakahara (2 out of 2 patents)

14.  Kazunari Kaneyasu (2 out of 2 patents)

15.  Tomohiro Kawaguchi (2 out of 2 patents)


Core Competencies:
Gas Sensor
Electrochemical Sensor
Gas Detection Method
Infrared Light Absorbent
Proton Conductor
Gas Detection Device
Liquid Electrochemical
Self-Diagnostic Method
CO Sensor
Gas Detector
Gas Detection Apparatus
Metal-Oxide Semiconductor

46 patents:

1. 12566130 - Infrared light absorbent body, and gas sensor provided with infrared light absorbent body (2026-03-03),
2. 12078606 - Gas sensor (2024-09-03),
3. 11977007 - Gas detection device and gas detection method (2024-05-07),
4. 11940432 - Gas detector (2024-03-26),
5. 11698356 - Gas detection device and gas detection method using metal-oxide semiconductor gas sensor (2023-07-11),
6. 11638895 - Gas sensor and method for producing same (2023-05-02),
7. 11567021 - Gas detection device and gas detection method (2023-01-31),
8. 11506622 - Gas detector comprising plural gas sensors and gas detection method thereby (2022-11-22),
9. 11385195 - Gas detector and gas detection method (2022-07-12),
10. 10976280 - Electrochemical gas sensor (2021-04-13),
11. 10712305 - Gas detection apparatus having an electrochemical gas sensor and gas detection method thereby (2020-07-14),
12. 9939404 - CO sensor having electromotive force response (2018-04-10),
13. 9182366 - Gas detection apparatus and gas detection method (2015-11-10),
14. 8815065 - Electrochemical gas sensor and mounting structure therefor (2014-08-26),
15. 8736274 - Method and apparatus for diagnosing electrochemical sensor (2014-05-27),
Company Overview
Figaro Engineering Inc., based in Osaka, Japan, specializes in the development and manufacturing of advanced gas sensing technologies. The company focuses on various types of gas sensors, including electrochemical and proton conductor sensors, which are integral for applications in gas detection devices and methods. Figaro's innovations extend to self-diagnostic methods and air conditioner control devices, positioning the company as a key player in the gas detection industry, committed to enhancing safety and environmental monitoring.
Profile summary synthesized from public USPTO records and patent filings.

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USPTO Data Jan 1 1976 - Oct 27 2026

46 Patents

#195 in Osaka

#1,809 in Japan

#15,136 in the World

Osaka, JP
Osaka, Japan

Figaro Engineering Inc.

Forward Citations = 302

87 inventors:

goldMedal Tomohiro Inoue (10 out of 105 patents)

silverMedal Kuniyuki Izawa (7 out of 7 patents)

bronzeMedal Kenichi Yoshioka (5 out of 5 patents)

4.  Yuki Fujimori (4 out of 4 patents)

5.  Masakazu Sai (4 out of 4 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Figaro Engineering Inc.. Retrieved from https://idiyas.com/company/figaro-engineering

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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