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Hamamatsu, Japan

Yukio Sumigawa

USPTO Granted Patents = 16

Average Co-Inventor Count = 1.2

ph-index = 8

Forward Citations = 162(Granted Patents)

Location History:

Iwata, JP (1985 - 1987)
Hamamatsu, JP (1990 - 2007)

Company Filing History:

15 out of 1,061

Sanshin Kogyo Kabushiki Kaisha

Yamaha Marine Kabushiki Kaisha

Years Active: 1985-2007

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16 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 7223139 - Outboard motor with plastic oil pan (2007-05-29),

2. 5595515 - Outboard motor exhaust system (1997-01-21),

3. 5487688 - Outboard motor (1996-01-30),

4. 5439404 - Cooling system for outboard motor (1995-08-08),

5. 5232387 - Exhaust device for a four-cycle outboard motor (1993-08-03),

6. 5026308 - Two piece swivel bracket (1991-06-25),

7. 5018995 - Tilt handle (1991-05-28),

8. 5006083 - Tilting device for marine propulsion unit (1991-04-09),

9. 4954107 - Tilt cylinder device (1990-09-04),

10. 4919629 - Steering device for marine propulsion (1990-04-24),

11. 4709671 - Outboard motor provided with a four-stroke engine (1987-12-01),

12. 4701141 - Steering device for an outboard motor (1987-10-20),

13. 4622015 - Steering device for an outboard motor (1986-11-11),

14. 4611559 - Outboard motor provided with a four-stroke engine (1986-09-16),

15. 4582493 - Driving device for an outboard motor (1986-04-15),

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