YS

Yukio Sumigawa

SI Sanshin Industries: 15 patents #27 of 319Top 9%
YM Yamaha Marine: 1 patents #80 of 137Top 60%
📍 Iwata, JP: #66 of 782 inventorsTop 9%
Overall (All Time): #301,677 of 4,157,543Top 8%
16
Patents All Time

Issued Patents All Time

Showing 1–16 of 16 patents

Patent #TitleCo-InventorsDate
7223139 Outboard motor with plastic oil pan Takio Ogasawara 2007-05-29
5595515 Outboard motor exhaust system Junichi Hasegawa, Yoshibumi Iwata 1997-01-21
5487688 Outboard motor 1996-01-30
5439404 Cooling system for outboard motor 1995-08-08
5232387 Exhaust device for a four-cycle outboard motor 1993-08-03
5026308 Two piece swivel bracket 1991-06-25
5018995 Tilt handle 1991-05-28
5006083 Tilting device for marine propulsion unit 1991-04-09
4954107 Tilt cylinder device 1990-09-04
4919629 Steering device for marine propulsion Atsushi Isogawa 1990-04-24
4709671 Outboard motor provided with a four-stroke engine 1987-12-01
4701141 Steering device for an outboard motor 1987-10-20
4622015 Steering device for an outboard motor 1986-11-11
4611559 Outboard motor provided with a four-stroke engine 1986-09-16
4582493 Driving device for an outboard motor Makoto Toyohara 1986-04-15
4552511 Propeller for marine propulsion device 1985-11-12