Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7104283 | Normally open hydraulic control valve | Shigeto Ryuen, Hidetoshi Watanabe, Satoshi Noda | 2006-09-12 |
| 7066206 | Damper device for hydraulic control valve | Shigeto Ryuen, Hidetoshi Watanabe, Satoshi Noda | 2006-06-27 |