Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4969752 | Thrust bearing made of synthetic resin | Shuichi Kubota, Hiroshi Suda | 1990-11-13 |
| 4923312 | Thrust bearing made of synthetic resin | Shuichi Kubota, Masaru Iwakura | 1990-05-08 |
| 4907289 | Thrust bearing made of synthetic resin | Shuichi Kubota, Masaru Iwakura | 1990-03-06 |
| 4854745 | Thrust bearing made of synthetic resin | Shuichi Kubota, Masaru Iwakura | 1989-08-08 |
| 4699530 | Thrust ball bearing unit | Eiji Satoh, Mararu Iwakura, Yasunori Nishi, Masamitsu Kojima | 1987-10-13 |