Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5934680 | Split resin seal ring with chamfered end connection structures | Jiro Matsumoto | 1999-08-10 |
| 5628519 | Oil seal ring of synthetic resin having angularly displaced injection point | — | 1997-05-13 |