Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5135314 | Ceramic bearing | Tetsuo Shibata | 1992-08-04 |
| 5127745 | Ceramic bearing | Tetsuo Shibata | 1992-07-07 |
| 5102239 | Ceramic bearing | Tetsuo Shibata | 1992-04-07 |
| 5094550 | Ceramic bearing | Tetsuo Shibata | 1992-03-10 |
| 5083873 | Ceramic bearing | Tetsuo Shibata | 1992-01-28 |
| 5054940 | Ceramic bearing | Tetsuo Shibata | 1991-10-08 |
| 4776454 | Conveyor belt | — | 1988-10-11 |