Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8220800 | Seal layer-transferred metal gasket | Keisuke Umehara, Takayuki Hikami | 2012-07-17 |
| 7204491 | Metal gasket | Koichi Hatamura, Takashi Suzuki, Hiroyuki Ogino, Takahiko Sugiura, Yasuyuki Okudaira +3 more | 2007-04-17 |