Issued Patents All Time
Showing 1–17 of 17 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11174769 | Work machine provided with engine | Mitsunori Hirozawa | 2021-11-16 |
| 8798872 | Rotation control device for working machine | Masayuki Komiyama | 2014-08-05 |
| 8581596 | Current leakage detector of construction machine | — | 2013-11-12 |
| 8421415 | Hybrid working machine having battery protecting function | — | 2013-04-16 |
| 8286740 | Hybrid working machine | Masayuki Komiyama, Keisuke Shimomura | 2012-10-16 |
| 8190334 | Rotation control device and working machine therewith | Akira Tsutsui, Masayuki Komiyama | 2012-05-29 |
| 7745947 | Hybrid working machine | Masayuki Komiyama | 2010-06-29 |
| 7728449 | Hybrid working machine | Masayuki Komiyama | 2010-06-01 |
| 7669413 | Hybrid construction machine | Masayuki Komiyama | 2010-03-02 |
| 7525206 | Power source device for working machine | Toshio Sora, Masayuki Komiyama | 2009-04-28 |
| 7487023 | Construction machine | Masayuki Komiyama | 2009-02-03 |
| 7279801 | Hybrid construction machine having auxiliary battery and control apparatus thereof | — | 2007-10-09 |
| 7069673 | Hybrid construction equipment power control apparatus | Toshio Sora, Masayuki Komiyama | 2006-07-04 |
| 6789335 | Shovel | Hideki Kinugawa, Masayuki Komiyama, Hirokazu Araya | 2004-09-14 |
| 6635973 | Capacitor-equipped working machine | Hirokazu Araya, Hideki Kinugawa, Masayuki Komiyama | 2003-10-21 |
| 6618658 | Control apparatus for a hydraulic excavator | Hideki Kinugawa | 2003-09-09 |
| 6199307 | Battery-powered working machine | Hideki Kinugawa | 2001-03-13 |