Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6286550 | Valve apparatus | Kenichi Kawazoe, Hideo Ohtani, Hiroshi Yamamoto, Ryoji Okutsu, Koji Izumi | 2001-09-11 |
| 6120006 | Valve device | Ryuji Shinozaki, Kenichi Kawazoe | 2000-09-19 |
| 4742987 | Valve | Shozo Kanamori, Shigehiro Kawai | 1988-05-10 |