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For the Inventor, By the Inventor

Obu, Japan

Aisan Kogyo Kabushiki Kaisha


USPTO Granted Patents = 801



Trademarks = 3

Forward Citations = 4,535

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661 inventors (with patents filed for the assignee):

goldMedal Mamoru Yoshioka (42 out of 154 patents)

silverMedal Katsuhiko Makino (39 out of 39 patents)

bronzeMedal Yoshikazu Miyabe (32 out of 32 patents)

4.  Masaki Ikeya (31 out of 31 patents)

5.  Koji Yoshida (27 out of 40 patents)

6.  Junya Kimoto (26 out of 26 patents)

7.  Yoshihiko Honda (24 out of 25 patents)

8.  Sunao Kitamura (21 out of 23 patents)

9.  Ryuji Kosugi (21 out of 21 patents)

10.  Minoru Akita (21 out of 21 patents)

11.  Daisaku Asanuma (19 out of 20 patents)

12.  Kensuke Niwa (18 out of 18 patents)

13.  Takehide Nakamura (18 out of 18 patents)

14.  Naoyuki Tagawa (17 out of 17 patents)

15.  Hitoshi Takeuchi (17 out of 34 patents)


Core Competencies:
Valve System
Throttle Device
EGR Valve
Leakage Detector
Throttle Body
Pump Unit
Fuel Cell System
Fuel Supply Device
Evaporated Fuel Treatment
Flow Control Valve
Motor Control Device
Dust Filter

801 patents:

1. 12486924 - Valve system (2025-12-02),
2. 12454921 - Throttle device (2025-10-28),
3. 12359748 - EGR valve (2025-07-15),
4. 12248328 - Valve system (2025-03-11),
5. 12228474 - Leakage detector (2025-02-18),
6. D1059423 - Throttle body for internal combustion engine (2025-01-28),
7. D1056958 - Throttle body for internal combustion engine (2025-01-07),
8. 12181070 - Valve device and system in which the valve device is mounted (2024-12-31),
9. 12135093 - Valve device (2024-11-05),
10. 12134994 - Pump unit (2024-11-05),
11. RE50153 - EGR apparatus of engine (2024-10-01),
12. 12098689 - Throttle device (2024-09-24),
13. 12065983 - Throttle device (2024-08-20),
14. 12060945 - Flow rate control valve (2024-08-13),
15. 12025536 - Leakage detector (2024-07-02),
AISAN KOGYO KABUSHIKI KAISHA is a manufacturing company headquartered in Aichi, Japan. They specialize in producing and supplying a wide range of automotive components and systems. With over 80 years of experience, AISAN has established a strong global presence and is recognized as a leading supplier in the automotive industry. Their products include fuel delivery systems, emission control systems, engine components, drive control systems, and more. AISAN's commitment to innovation, quality, and customer satisfaction has made them a trusted partner for major automobile manufacturers worldwide.
This text is generated by artificial intelligence and may not be accurate.

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USPTO Data Jan 1 1976 - Dec 9 2025

801 Patents

#1 in Obu

#260 in Japan

#1,212 in the World

...
Obu, Japan

Aisan Kogyo Kabushiki Kaisha

Forward Citations = 4,535

661 inventors:

goldMedal Mamoru Yoshioka (42 out of 154 patents)

silverMedal Katsuhiko Makino (39 out of 39 patents)

bronzeMedal Yoshikazu Miyabe (32 out of 32 patents)

4.  Masaki Ikeya (31 out of 31 patents)

5.  Koji Yoshida (27 out of 40 patents)

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