Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4942854 | Valve operating device for use in internal combustion engine | Hiroshi Shirai, Takashi Tatsumi, Hisashi Kanda, Koichi Fukuo, Toshiaki Hiro | 1990-07-24 |
MM
Masahiko Motsumoto
Overall (All Time): #3,907,631 of 4,157,543Top 95%
1
Patents All Time