Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6637550 | Displacement type fluid machine | Masaki Koyama, Isamu Tsubono, Isao Hayase, Koichi Sekiguchi, Kenichi Oshima | 2003-10-28 |
| 6345967 | Scroll type fluid machine having different wrap side surface clearances | Isamu Tsubono, Isao Hayase, Takeshi Tsuchiya, Toshiyuki Terai, Mutsunori Matsunaga | 2002-02-12 |