Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5303465 | Method of assembling piston ring and method of assembling set oil ring and apparatus for assembling set oil ring | Shuzo Fujimoto, Hiroshi Ejiri, Yuji Tamai, Satoshi Takahashi | 1994-04-19 |
| 4899437 | Apparatus for assembling roller type universal joint and roller assembly unit | Mituharu Ozawa, Nobuyoshi Nagatsuma | 1990-02-13 |