Issued Patents 1997
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5617938 | Friction clutch | Yoshiaki Tsukada, Kazuhiko Nakamura, Mitsuru Saito | 1997-04-08 |
HK
Hiroaki Kayama
Overall (1997): #141,838 of 185,788Top 80%
1
Patents 1997