IH

Itsushi Hirukawa

SI Sanshin Industries: 6 patents #72 of 319Top 25%
Yamaha Motor: 2 patents #855 of 2,310Top 40%
Overall (All Time): #659,486 of 4,157,543Top 20%
8
Patents All Time

Issued Patents All Time

Showing 1–8 of 8 patents

Patent #TitleCo-InventorsDate
7431014 Internal combustion engine and vehicle having the same 2008-10-07
7261077 Decompressor and vehicle Yuuichi Asano, Yasuhiro Okamoto 2007-08-28
5072629 Shift assisting system Ryoichi Ito 1991-12-17
4973274 Shift assisting device 1990-11-27
4951640 Method of controlling ignition of internal combustion engine Satoshi Aoki, Noboru Kudoh 1990-08-28
4927390 Gas exhaustion device for inboard/outboard engine Noboru Kudoh, Satoshi Aoki, Tsuyoshi Yoshimura, Shigeki Shiozawa 1990-05-22
4909764 Ignition timing control system for marine propulsion unit Kazuya Takeuchi 1990-03-20
4903662 Spark timing controller for spark ignited internal combustion engine Kazuya Takeuchi, Nobuki Motoshige 1990-02-27