EW

Eifu Watanabe

SI Sanshin Industries: 9 patents #39 of 319Top 15%
Yamaha Motor: 5 patents #351 of 2,310Top 20%
YM Yamaha Marine: 2 patents #49 of 137Top 40%
SC Sanshin Industries Co.: 1 patents #5 of 32Top 20%
Overall (All Time): #354,334 of 4,157,543Top 9%
14
Patents All Time

Issued Patents All Time

Showing 1–14 of 14 patents

Patent #TitleCo-InventorsDate
8077056 Immobilizer receiver for outboard motor 2011-12-13
7665381 Control device for marine propulsion system Shuji Iekura 2010-02-23
7507130 Remote control device for a boat Noriyoshi Ichikawa, Isao Kanno 2009-03-24
7452254 Remote control unit for a boat Shuji Iekura, Masaru Suzuki, Masahiko Kato, Takashi Okuyama 2008-11-18
5074812 Torsional damper for marine propulsion engine 1991-12-24
5025763 Latching mechanism for outboard motor cowling 1991-06-25
5020483 Intake system for two cycle internal combustion engine 1991-06-04
4952180 Cowling for outboard motor Gaku Hashimoto 1990-08-28
4828519 Outboard motors 1989-05-09
4764134 Trimming device for marine propulsion unit 1988-08-16
4698037 Protective cowling arrangement for outboard motor Toshiyuki Yamazaki 1987-10-06
4521201 Steering device for an outboard motor 1985-06-04
4498875 Outboard motor 1985-02-12
4452194 Outboard motor 1984-06-05