For the Inventor, By the Inventor

Enter assignee name

Fujikoki Mfg. Co., Ltd.

Calculating rank

USPTO Granted Patents = 16

Forward Citations = 292

Loading Chart...

Loading Chart...

20 inventors (with patents filed for the assignee):

Kazuhiko Watanabe (6 out of 123 patents)

Hazime Tanaka (5 out of 9 patents)

Takashi Endo (3 out of 60 patents)

4. Masayuki Imai (3 out of 18 patents)

5. Tatsushi Ninomiya (3 out of 5 patents)

6. Masamichi Yano (2 out of 35 patents)

7. Eiji Fukuda (1 out of 16 patents)

8. Keiji Sasaki (1 out of 24 patents)

9. Toshihiko Nishihara (1 out of 2 patents)

10. Hirayoshi Suzuki (1 out of 3 patents)

11. Teiichi Okamoto (1 out of 1 patent)

12. Kenji Yoshiga (1 out of 5 patents)

13. Tetsurou Ikoma (1 out of 3 patents)

14. Masayuki Koguchi (1 out of 1 patent)

15. Moriyoshi Endo (1 out of 1 patent)

16 patents: Sort by Forward Citations

1. 6397628 - Expansion valve and refrigerating system (2002-06-04),

2. 6354509 - Thermal expansion valve (2002-03-12),

3. 6164624 - Expansion valve and refrigerating system (2000-12-26),

4. 5816775 - Drainage pump with interposed disk (1998-10-06),

5. 5788457 - Drainage pump with a wall member connecting the outer edges of the (1998-08-04),

6. 5628618 - Drainage pump with interposed disk (1997-05-13),

7. 5611215 - Receiver drier (1997-03-18),

8. 5597117 - Expansion valve with noise suppression (1997-01-28),

9. 5587535 - Pressure sensor including a pair of slidable contacts between a strain (1996-12-24),

10. 5044551 - Thermo bulb for use with the thermostatic expansion valve (1991-09-03),

11. 5044170 - Refrigeration system and a thermostatic expansion valve best suited for (1991-09-03),

12. 5005370 - Thermal expansion valve (1991-04-09),

13. 4979372 - Refrigeration system and a thermostatic expansion valve best suited for (1990-12-25),

14. 4977480 - Variable-capacitance type sensor and variable-capacitance type sensor (1990-12-11),

15. 4835980 - Method for controlling refrigerating system (1989-06-06),

Company Overview

Fujikoki Mfg. Co., Ltd. is a prominent Japanese manufacturer specializing in precision components and systems for various industries. The company focuses on developing advanced technologies in areas such as automotive, industrial machinery, and electronic devices. With a commitment to innovation, Fujikoki integrates cutting-edge engineering practices to enhance product performance and reliability. Its operations are primarily based in Tokyo, where it leverages local expertise to meet global market demands.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 27 2026

16 Patents

#1,502 in Tokyo

#3,345 in Japan

#37,887 in the World

Fujikoki Mfg. Co., Ltd.

Forward Citations = 292

20 inventors:

Kazuhiko Watanabe (6 out of 123 patents)

Hazime Tanaka (5 out of 9 patents)

Takashi Endo (3 out of 60 patents)

4. Masayuki Imai (3 out of 18 patents)

5. Tatsushi Ninomiya (3 out of 5 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Fujikoki Mfg. Co., Ltd.. Retrieved from https://idiyas.com/company/fujikoki-mfg-company

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]

Loading…