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For the Inventor, By the Inventor

Kyoto, Japan

Gs Yuasa Corporation


USPTO Granted Patents = 45

% Expired Patents = 26.7



Trademarks = 16

Forward Citations = 591

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93 inventors (with patents filed for the assignee):

goldMedal Hideki Masuda (5 out of 15 patents)

silverMedal Hiroshi Tasai (5 out of 12 patents)

bronzeMedal Hiroshi Mukai (5 out of 7 patents)

4.  Osamu Ushijima (4 out of 15 patents)

5.  Kazuya Okabe (4 out of 20 patents)

6.  Toshiyuki Nukuda (4 out of 22 patents)

7.  Junya Ueda (4 out of 4 patents)

8.  Tetsuya Murai (3 out of 8 patents)

9.  Koichi Nishiyama (3 out of 8 patents)

10.  Ryoichi Okuyama (3 out of 12 patents)

11.  Noriyoshi Munenaga (3 out of 16 patents)

12.  Yoshihiro Yamamoto (3 out of 6 patents)

13.  Masashi Motoi (3 out of 4 patents)

14.  Katsuji Ashida (3 out of 4 patents)

15.  Takehito Matsubara (3 out of 7 patents)


Core Competencies:
Electric Automobile
Lead-Acid Battery
Lithium Ion Battery
Nonaqueous Electrolytic Cell
Fuel Cell System
Battery Balancing Device
Active Material for Batteries
Hydrogen Supply System
Storage Battery Device
Nickel Metal-Hydride Battery
Electrode Manufacturing Method
Submarine Power Unit

45 patents:

1. 7939210 - Electric automobile (2011-05-10),
2. 7939204 - Separator for lead-acid battery (2011-05-10),
3. D635508 - Assembled battery (2011-04-05),
4. 7910252 - Hydrogen supply system (2011-03-22),
5. 7879265 - Active material for lithium ion battery having Al-containing lithium titanate and lithium ion battery (2011-02-01),
6. 7875395 - Nonaqueous electrolytic cell and its manufacturing method (2011-01-25),
7. 7867655 - Nickel metal-hydride battery (2011-01-11),
8. 7825628 - Device for balancing cell voltage for a secondary battery (2010-11-02),
9. 7814628 - Grid for a battery plate, method of producing the same, and battery using the same (2010-10-19),
10. D623127 - Assembled battery (2010-09-07),
11. 7781099 - Non-aqueous electrolyte secondary cell (2010-08-24),
12. 7776214 - Membrane element (2010-08-17),
13. 7754388 - Nonaqueous electrolyte and nonaqueous-electrolyte battery (2010-07-13),
14. 7740963 - Liquid fuel type fuel cell system and its operating method (2010-06-22),
15. 7718312 - Battery (2010-05-18),
Gs Yuasa Corporation, headquartered in Kyoto, Japan, is a prominent player in the development and manufacturing of advanced battery technologies. The company specializes in electric automobile batteries, lead-acid batteries, and lithium-ion batteries, contributing significantly to the automotive and energy sectors. Gs Yuasa is also engaged in innovative solutions such as nonaqueous electrolytic cells, fuel cell systems, and battery balancing devices, alongside active materials for batteries and hydrogen supply systems, positioning itself at the forefront of energy storage and management technologies.
Profile summary based on public USPTO records.

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USPTO Data Jan 1 1976 - Sep 29 2026

Gs Yuasa Corporation
45 Patents

#67 in Kyoto 615-0031

#1,824 in Japan

#15,408 in the World

Kyoto, JP
Kyoto, Japan

Gs Yuasa Corporation

Forward Citations = 591

93 inventors:

goldMedal Hideki Masuda (5 out of 15 patents)

silverMedal Hiroshi Tasai (5 out of 12 patents)

bronzeMedal Hiroshi Mukai (5 out of 7 patents)

4.  Osamu Ushijima (4 out of 15 patents)

5.  Kazuya Okabe (4 out of 20 patents)

Please report any incorrect information to [email protected]
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