Issued Patents 2003
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6543786 | Installation structure of lip type seal | Shiro Osumi, Naoki Hayakawa, Yamada Takeshi, Imai Takayuki | 2003-04-08 |
| 6517083 | Lip seal | Takeshi Yamada, Takayuki Imai | 2003-02-11 |