Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7063911 | Gasket for fuel cell and method of forming it | Osamu Nagai, Yuichi Kuroki | 2006-06-20 |
| 6649097 | Method of making a gasket for layer-built fuel cells | Yasunori Sasaki, Kazuhisa Senda, Osamu Nagai, Osamu Ando, Tasashi Fujimoto | 2003-11-18 |
| 6337120 | Gasket for layer-built fuel cells and method for making the same | Yasunori Sasaki, Kazuhisa Senda, Osamu Nagai, Osamu Ando, Tadashi Fujimoto | 2002-01-08 |
| 6231053 | Gasket for fuel cell | — | 2001-05-15 |
| 4408934 | Drilling machine | Hiroshi Ohba | 1983-10-11 |