Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4941559 | Wet friction member, and wet frictional engagement apparatus for a transmission using the same | Keiichi Ishikawa, Yasuyuki Suzuki, Hiroaki Hasegawa | 1990-07-17 |
| 4559910 | Crankshaft bearing device for internal combustion engine | Yoshiaki Hidaka | 1985-12-24 |
| 4513698 | Intake manifold structure for internal combustion engines | Akihisa Senga, Yoshiaki Hidaka | 1985-04-30 |
| 4449491 | Lubricating device for internal combustion engine | Yoshiaki Hidaka | 1984-05-22 |
| 4448159 | V-Type internal combustion engine | Yoshiaki Hidaka | 1984-05-15 |