Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5415791 | Lubricating composition and a sliding member comprising the composition | Hideo Chou, Kikuo Sumiyoshi, Keizou Ishikawa | 1995-05-16 |
| 4699530 | Thrust ball bearing unit | Eiji Satoh, Mararu Iwakura, Hiroto Kamimura, Masamitsu Kojima | 1987-10-13 |