For the Inventor, By the Inventor

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Kawasaki, Japan

Walbro Far East, Inc.

USPTO Granted Patents = 22

Forward Citations = 224

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10 inventors (with patents filed for the assignee):

Yoshimi Sejimo (12 out of 12 patents)

Takeshi Kobayashi (10 out of 36 patents)

Kohji Nagasaka (7 out of 7 patents)

4. Hiroto Kobayashi (7 out of 7 patents)

5. Teruhiko Tobinai (4 out of 4 patents)

6. Toshiaki Tsubai (3 out of 3 patents)

7. Shin Suzuki (1 out of 1 patent)

8. Shuichi Sasaki (1 out of 1 patent)

9. Masao Suzuki (1 out of 1 patent)

10. Tsuneo Hashimoto (1 out of 1 patent)

22 patents: Sort by Forward Citations

1. 4986229 - Apparatus for supplying start fuel for a carburetor (1991-01-22),

2. 4893594 - Start-fuel supply device in internal combustion engine for portable (1990-01-16),

3. 4893593 - Start-fuel supply device in internal combustion engine for portable (1990-01-16),

4. 4862848 - Apparatus for supplying start-fuel in the internal combustion engine for (1989-09-05),

5. 4862847 - Apparatus for supplying start-fuel in the internal combustion engine for (1989-09-05),

6. 4809658 - Anti-overrunning device for an internal combustion engine (1989-03-07),

7. 4809657 - Anti-overrunning device for an internal combustion engine (1989-03-07),

8. 4796583 - Anti-overrunning device for an internal combustion engine (1989-01-10),

9. 4796582 - Anti-overruning device for an internal combustion engine (1989-01-10),

10. 4796578 - Anti-overrunning device for an internal combustion engine (1989-01-10),

11. 4770823 - Choke valve mechanism for carburetor (1988-09-13),

12. 4770822 - Diaphragm carburetor for internal combustion engine (1988-09-13),

13. 4769185 - Diaphragm carburetor for internal combustion engine (1988-09-06),

14. 4752420 - Diaphragm carburetor for internal combustion engine (1988-06-21),

15. 4481153 - Rotary throttle valve carburetor (1984-11-06),

Walbro Far East, Inc. is a leading manufacturer of fuel systems and engine management solutions for the outdoor power equipment, recreational, and automotive markets. With over 60 years of experience, Walbro is known for its innovative products and commitment to quality. The company operates globally, with a strong presence in the Asian market.

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Company Badge

USPTO Data Jan 1 1976 - Dec 23 2025

22 Patents

#32 in Kawasaki

#2,724 in Japan

#27,888 in the World

Kawasaki, Japan

Walbro Far East, Inc.

Forward Citations = 224

10 inventors:

Yoshimi Sejimo (12 out of 12 patents)

Takeshi Kobayashi (10 out of 36 patents)

Kohji Nagasaka (7 out of 7 patents)

4. Hiroto Kobayashi (7 out of 7 patents)

5. Teruhiko Tobinai (4 out of 4 patents)

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