Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8307846 | Pressure control valve | Shu Yanagisawa, Ryo Matsuda, Hiroshi Yokota | 2012-11-13 |
| 7299995 | Expansion valve | Masamichi Yano | 2007-11-27 |
| 6702188 | Expansion valve | Masamichi Yano | 2004-03-09 |
| 6561433 | Thermal expansion valve | Makoto Sudo, Kazuhiko Watanabe | 2003-05-13 |
| 5980081 | Control system having effective error detection capabilities | Sanae Hirata | 1999-11-09 |
| 5966305 | Control system having effective error detection capabilities | Sanae Hirata | 1999-10-12 |
| 5522034 | Battery disconnection detecting apparatus | Takaaki Baba, Shogo Kameyama | 1996-05-28 |