Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5647685 | Frictional type connector for connecting a rotator to a shaft | Yoshio Kurokawa | 1997-07-15 |
| 5174680 | Fastening apparatus for a shaft and a wheel or wheel-like body | Kenichiro Nakamura | 1992-12-29 |