Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5222816 | Rolling bearing with solid lubricant | Hiromitsu Kondoh, Hiroshi Yamada, Norihide Satoh | 1993-06-29 |
| 5207513 | Rolling bearing with solid lubricant | Hiromitsu Kondo, Norihide Sato, Tasuku Sato | 1993-05-04 |
| 5150974 | Grease-sealed bearing with oxide layers | Kenji Tamada, Hirokazu Nakajima, Akio Okayama | 1992-09-29 |