Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4856916 | Conducting rolling bearing | Hideji Ito, Koji Kametaka | 1989-08-15 |
| 4846592 | Rolling bearing | Takayasu Takubo | 1989-07-11 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4856916 | Conducting rolling bearing | Hideji Ito, Koji Kametaka | 1989-08-15 |
| 4846592 | Rolling bearing | Takayasu Takubo | 1989-07-11 |