YS

Yoshitsugu Sumino

SI Sanshin Industries: 5 patents #80 of 319Top 30%
SC Sanshin Industries Co.: 1 patents #5 of 32Top 20%
📍 Beni Chebana, DZ: #1 of 6 inventorsTop 20%
Overall (All Time): #887,661 of 4,157,543Top 25%
6
Patents All Time

Issued Patents All Time

Showing 1–6 of 6 patents

Patent #TitleCo-InventorsDate
5807151 Propeller for marine propulsion drive 1998-09-15
5800223 Marine propulsion device Yasushi Iriono 1998-09-01
5759073 Dual propeller system for marine drive Ryoji Nakahama 1998-06-02
5310371 Tandem propeller assembly for a marine propulsion unit Yasushi Iriono, Mitsunori Suzuki, Hiroshi Harada 1994-05-10
4609361 Fish line and weed cutter for marine propeller Hiroichi Mizuno 1986-09-02
4578040 Fish line entering prevention device for marine propeller Hiroshi Harada 1986-03-25