Issued Patents 2002
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6481898 | Ball bearing | Kenji Yakura, Hirotoshi Aramaki, Yukio Ooura, Akio Fujii, Sumio Sugita +2 more | 2002-11-19 |
| 6378382 | Device for measuring rotation accuracy and dynamic torque for radial rolling bearing | Ryoma Endou | 2002-04-30 |
| 6379049 | Rolling bearing | Kenichi Shibazaki, Tetsu Takehara, Shinichi Natsumeda | 2002-04-30 |