Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5862665 | Apparatus for preventing reverse rotation for hydraulic actuator | Jun Maruyama, Kei Kawabata, Hiroshi Endo | 1999-01-26 |
| 5823227 | Hydraulic pilot valve | Kei Kawabata, June Maruyama | 1998-10-20 |
| 5819800 | Hydraulic pilot valve | Kei Kawabata, Jun Maruyama | 1998-10-13 |
| 5813310 | Working machine fall preventive valve apparatus | Tadao Karakama | 1998-09-29 |
| 5295513 | Pilot valve apparatus | — | 1994-03-22 |
| 5209263 | Pilot valve assembly | — | 1993-05-11 |
| 5184646 | Pilot valve | Tadao Karakama, Jun Maruyama | 1993-02-09 |
| 5105268 | Community antenna broadcast system having an improved channel selecting system permitting purchase of a selected channel from a plurality of non-purchased channels | Toshio Yamanouchi, Atsuo Tanaka, Keizo Kuwahara, Yasumasa Sakano, Yohsuke Ohba | 1992-04-14 |