Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5983151 | Tractive force control apparatus and method for construction equipment | Toshikazu Okada, Hidekazu Nagase, Shigeru Yamamoto, Nobuhisa Kamikawa | 1999-11-09 |
| 5862868 | Bulldozer blade pitch control method and controller for the same | Shigeru Yamamoto, Nobuhisa Kamikawa, Toshikazu Okada | 1999-01-26 |
| 5799737 | Blade apparatus and its control method in bulldozer | Nobuhisa Kamikawa, Naomi Kobayashi, Norihisa Matsumoto | 1998-09-01 |
| 5620053 | Blade apparatus and its control method in bulldozer | Nobuhisa Kamikawa, Toshikazu Okada, Hidekazu Nagase, Naomi Kobayashi, Hiroshi Itogawa +2 more | 1997-04-15 |