Issued Patents All Time
Showing 1–14 of 14 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11231185 | Air conditioner | Mikihito Tokudi, Takanori Isogawa, Kazuhiro Tsuchihashi, Hiroyuki Ogisu | 2022-01-25 |
| 10865680 | Exhaust gas purifying device of work machine | Takenori Hiroki, Ryou Takaichi, Hisashi TAGO, Hironori Itou | 2020-12-15 |
| 10845098 | Air conditioner | Jun XUE, Koji Naito, Hiroaki Kaneko | 2020-11-24 |
| 10557648 | Cooling/heating switching unit and air conditioner including the same | Koji Naito, Naoyuki FUSHIMI, Kazumoto Urata, Kazunori Fukuda | 2020-02-11 |
| 10527322 | Air conditioner | Koji Naito, Kazumoto Urata, Kazuhiko Tani, Masayoshi Murofushi | 2020-01-07 |
| 8136355 | Pump control apparatus for hydraulic work machine, pump control method and construction machine | Akihide Yamazaki | 2012-03-20 |
| 8056331 | Pump torque controller of hydraulic working machine | Kenji Kakizawa | 2011-11-15 |
| 7979229 | Displacement control signal correction method, displacement control device, construction machine and displacement control signal correction program | Saimon Otaka, Yoshinori Ohwada, Kenji Kakizawa | 2011-07-12 |
| 7020553 | Signal processing system for construction machine | Kazunori Nakamura, Toichi Hirata, Yasushi Arai, Yoichi Kowatari, Hiroshi Watanabe | 2006-03-28 |
| 6244048 | Hydraulique drive device | Sotaro Tanaka, Masami Ochiai, Yusaku Nozawa, Hideyo Kato | 2001-06-12 |
| 6087945 | Pump failure alarm system for hydraulic working machine | — | 2000-07-11 |
| 5488787 | Hydraulic drive system for construction machine | Yukio Aoyagi, Kazuhiko Otsubo, Koji Fujita, Takayuki Yamakawa, Kazuyoshi Narita | 1996-02-06 |
| 5289679 | Hydraulic drive system with pressure compensating valve | — | 1994-03-01 |
| 5056312 | Hydraulic drive system for construction machines | Toichi Hirata, Genroku Sugiyama, Yusuke Kajita, Yukio Aoyagi, Tomohiko Yasudi +5 more | 1991-10-15 |