Issued Patents 1997
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5672014 | Rolling bearings | Shigeru Okita, Susumu Tanaka, Kenji Yamamura, Manabu Ohori | 1997-09-30 |
| 5660647 | Rolling bearing with improved wear resistance | Kenji Yamamura | 1997-08-26 |
| 5626974 | Rolling bearing for use under high temperature conditions | — | 1997-05-06 |