RN

Ryoji Nakahama

SI Sanshin Industries: 25 patents #10 of 319Top 4%
Yamaha Motor: 4 patents #461 of 2,310Top 20%
MM Mitsubishi Motors: 2 patents #508 of 1,823Top 30%
SC Sanshin Industries Co.: 1 patents #5 of 32Top 20%
SK Shansin Kogyo Kabushiki Kaisha: 1 patents #1 of 12Top 9%
YC Yamaha Motor Co.: 1 patents #6 of 83Top 8%
📍 Iwata, JP: #27 of 782 inventorsTop 4%
Overall (All Time): #132,977 of 4,157,543Top 4%
29
Patents All Time

Issued Patents All Time

Showing 26–29 of 29 patents

Patent #TitleCo-InventorsDate
4545769 Tilt locking system for boat propellers Kenichi Handa 1985-10-08
4527441 Shifting apparatus for a propelling unit for a vessel 1985-07-09
4521202 Tilt locking system for ship propellers 1985-06-04
4421490 Exhaust silencer structure for outboard engines 1983-12-20