Issued Patents All Time
Showing 1–24 of 24 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7754069 | Filter for trapping foreign matter | Yukio Shoji | 2010-07-13 |
| 7218099 | Displacement sensor | Yuichi Yamamoto, Yukio Shoji | 2007-05-15 |
| 7124045 | Displacement amount measuring device | Yuichi Yamamoto, Yukio Shoji | 2006-10-17 |
| 7082758 | Hydraulic machine, system for monitoring health of hydraulic machine, and method thereof | Masato Kageyama, Yukio Shoji | 2006-08-01 |
| 7034526 | Magnetic field forming device and displacement sensor using same | Yukio Shoji, Yuichi Yamamoto | 2006-04-25 |
| 6922989 | Plural pressure oil energies selective recovery apparatus and selective recovery method therefor | Shinobu Nagura, Kazuhiro Maruta | 2005-08-02 |
| 6718763 | Hydraulic drive unit | Kazuhiro Maruta | 2004-04-13 |
| 6460332 | Pressure oil energy recover/regenation apparatus | Kazuhiro Maruta | 2002-10-08 |
| 6378301 | Pressurized fluid recovery/reutilization system | Hiroshi Endo, Kazuhiro Muruta | 2002-04-30 |
| 6334308 | Pressure compensating valve, unloading pressure control valve and hydraulically operated device | Yasuhiro Sato, Ryoji Wakisaka | 2002-01-01 |
| 6311488 | Cooling fan drive apparatus | Kazuhiro Maruta, Teruo Akiyama | 2001-11-06 |
| 6305333 | Air blower apparatus | Kazuhiro Maruta, Hiroshi Endo | 2001-10-23 |
| 6286308 | Drive unit of cooling fan | Hiroshi Endo | 2001-09-11 |
| 6276133 | Pressure fluid supply and delivery apparatus | Hiroshi Endo | 2001-08-21 |
| 6209322 | Pressurized fluid supply system | Hiroshi Endo, Kazuhiro Maruta, Naoki Ishizaki | 2001-04-03 |
| 6186172 | Directional control valve apparatus | — | 2001-02-13 |
| 6170261 | Hydraulic fluid supply system | Naoki Ishizaki, Toyomi Kataoka | 2001-01-09 |
| 6164327 | Meter-out flow control valve | — | 2000-12-26 |
| 6151894 | Apparatus for recovering pressure oil returned from actuators | Hiroshi Endo, Kazuhiro Maruta | 2000-11-28 |
| 6026730 | Flow control apparatus in a hydraulic circuit | Tadao Karakama, Nobuhisa Honda | 2000-02-22 |
| 5855159 | Hydraulic circuit for a boom cylinder in a hydraulic shovel | Nobuhisa Honda | 1999-01-05 |
| 5692427 | Flow reinforcement directional control valve for a hydraulic circuit | Tadao Karakama, Nobuhisa Honda | 1997-12-02 |
| 5673557 | Displacement control system for variable displacement type hydraulic pump | Tadao Karakama, Nobuhisa Honda | 1997-10-07 |
| 5409038 | Hydraulic circuit including pressure compensating valve | Teruo Akiyama, Tadao Karakama | 1995-04-25 |