Issued Patents All Time
Showing 1–18 of 18 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7708100 | Construction machinery | Tomohiko Asakage, Norihiko Hayashi | 2010-05-04 |
| 7395213 | Method, apparatus and system for doing rental service of construction machine | Naotake Numata, Nobuhiro Shirasawa | 2008-07-01 |
| 7123927 | Wireless data collecting system having transmission possibility determining means | Hiroshi Narazaki, Eiji Takahashi, Takanari Shirasaka | 2006-10-17 |
| 7098549 | Power control device for construction machine | Tomohiko Asakage | 2006-08-29 |
| 7019668 | Management system for construction machines | — | 2006-03-28 |
| 6990398 | System for controlling operating information of construction machine and construction machine therefor | — | 2006-01-24 |
| 6982657 | Method and apparatus for displaying operation status of construction machine, and construction machine therefor | Hisashi Kadowaki | 2006-01-03 |
| 6789335 | Shovel | Masayuki Komiyama, Hirokazu Araya, Masayuki Kagoshima | 2004-09-14 |
| 6635973 | Capacitor-equipped working machine | Masayuki Kagoshima, Hirokazu Araya, Masayuki Komiyama | 2003-10-21 |
| 6618658 | Control apparatus for a hydraulic excavator | Masayuki Kagoshima | 2003-09-09 |
| 6614361 | Management system for construction machines | — | 2003-09-02 |
| 6199307 | Battery-powered working machine | Masayuki Kagoshima | 2001-03-13 |
| 6078855 | Battery-driven hydraulic excavator | Masayuki Komiyama | 2000-06-20 |
| 5999872 | Control apparatus for hydraulic excavator | Masayuki Komiyama, Naoki Tamura, Atsushi Onishi, Takahiro Kobayashi, Kiyotsuna Kuchiki | 1999-12-07 |
| 5991677 | Battery-driven working machine | Masayuki Komiyama | 1999-11-23 |
| 5967758 | Controlling device for controlling rotational speed of engine of hydraulic working machine | Kazuhiko Fujii, Hiroshi Togo | 1999-10-19 |
| 5913811 | Battery-driven hydraulic excavator | Masayuki Komiyama | 1999-06-22 |
| 5160056 | Safety device for crane | Hideaki Yoshimatsu, Norihiko Hayashi | 1992-11-03 |