Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4846768 | Variable-speed driving device | Yasuo Kitami, Syuji Watanabe | 1989-07-11 |
| 4840608 | Toothed belt | Junichi Araki, Nobuhiro Saito, Masuhiro Saito | 1989-06-20 |
HT
Hidenori Tezuka
Overall (1989): #25,527 of 140,708Top 20%
2
Patents 1989