SO

Shigeo Okumura

SI Sanshin Industries: 7 patents #61 of 319Top 20%
Yamaha Motor: 1 patents #1,283 of 2,310Top 60%
📍 Iwata, JP: #173 of 782 inventorsTop 25%
Overall (All Time): #766,647 of 4,157,543Top 20%
7
Patents All Time

Issued Patents All Time

Showing 1–7 of 7 patents

Patent #TitleCo-InventorsDate
5330376 Water cooling system for a marine propulsion unit 1994-07-19
5012648 Exhaust system for two-stroke engine Koushiro Inaba 1991-05-07
4805442 Knocking sensor for internal combustion engine Koshiro Inaba 1989-02-21
4790279 Ignition control system for an internal combustion engine Motoi Tobinaga, Kenichi Handa, Shinya Atsumi 1988-12-13
4787344 Two-stroke multi-cylinder engine Kyoji Hakamata 1988-11-29
4606315 Ignition control system for an internal combustion engine Motoi Tobinaga, Kenichi Handa, Shinya Atsumi 1986-08-19
4492198 Advancing mechanism for internal combustion engines 1985-01-08