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Hamanakodenso Co., Ltd.

USPTO Granted Patents = 35

EPO Patents = 5

Forward Citations = 91

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42 inventors (with patents filed for the assignee):

Takao Ishida (8 out of 8 patents)

Tomoaki Warashina (6 out of 6 patents)

Tetsunori Inoguchi (5 out of 6 patents)

4. Masashi Sugano (5 out of 5 patents)

5. Hideya Tochihara (4 out of 4 patents)

6. Kengo Suzuki (3 out of 21 patents)

7. Kimio Uchida (3 out of 12 patents)

8. Yuuichirou Miura (2 out of 2 patents)

9. Koji Suzuki (2 out of 11 patents)

10. Motoyoshi Ando (2 out of 15 patents)

11. Masanori Suzuki (2 out of 64 patents)

12. Fumiaki Kaneko (2 out of 2 patents)

13. Masahiro Hisada (2 out of 2 patents)

14. Yutaka Sato (2 out of 2 patents)

15. Yoshinori Suzuki (1 out of 12 patents)

35 patents: Sort by Forward Citations

1. 11953116 - Electromagnetic valve and fluid system (2024-04-09),

2. 11846364 - Electromagnetic valve (2023-12-19),

3. 11618107 - Device for manufacturing electric component and method for manufacturing electric component (2023-04-04),

4. 11293557 - Solenoid valve (2022-04-05),

5. 11286890 - Valve member and evaporative fuel processing system (2022-03-29),

6. 11193437 - Evaporative fuel processing device (2021-12-07),

7. 11193436 - Evaporated fuel processing device (2021-12-07),

8. 11098679 - Sealing valve for fuel vapor processing apparatus (2021-08-24),

9. 11060617 - Control valve and method for manufacturing control valve (2021-07-13),

10. 11060485 - Control valve assembly (2021-07-13),

11. 11047345 - Evaporated fuel processing device (2021-06-29),

12. 11028790 - Purge control valve device (2021-06-08),

13. 11002200 - Evaporated fuel processing device (2021-05-11),

14. 10982774 - Control valve and method for manufacturing control valve (2021-04-20),

15. 10961954 - Valve device and fuel evaporation gas purge system (2021-03-30),

HAMANAKODENSO CO., LTD. is a leading manufacturer and supplier of automotive electrical components. With a strong focus on innovation and quality, the company offers a wide range of products including alternators, starters, ignition coils, sensors, and power window systems. HAMANAKODENSO has established a reputation for delivering reliable and durable solutions to automotive OEMs and aftermarket customers. The company's commitment to customer satisfaction and technological advancements has made them a trusted partner in the automotive industry.

This text is generated by artificial intelligence and may not be accurate.

Company Badge

USPTO Data Jan 1 1976 - Dec 30 2025

35 Patents

#2 in Kosai

#2,078 in Japan

#18,611 in the World

Hamanakodenso Co., Ltd.

Forward Citations = 91

42 inventors:

Takao Ishida (8 out of 8 patents)

Tomoaki Warashina (6 out of 6 patents)

Tetsunori Inoguchi (5 out of 6 patents)

4. Masashi Sugano (5 out of 5 patents)

5. Hideya Tochihara (4 out of 4 patents)

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