Issued Patents All Time
Showing 26–32 of 32 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8510000 | Hybrid construction machine | Masahiro Egawa | 2013-08-13 |
| 8467934 | Controller of hybrid construction machine | Masahiro Egawa | 2013-06-18 |
| 8321095 | Control device for hybrid construction machine | Masahiro Egawa | 2012-11-27 |
| 5161777 | Control device for a valve | Kazuhide Maehata, Hisato Naitoh | 1992-11-10 |
| 4476890 | Pressure control valve | Keiji Ushiro | 1984-10-16 |
| 4351356 | Pressure control valve | Hideshi Koiwai, Shizuo Matsumura | 1982-09-28 |
| 4289160 | Pressure control valve | Hideshi Koiwai, Shizuo Matsumura | 1981-09-15 |