Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6962050 | Hybrid machine with hydraulic drive device | Hikosaburo Hiraki, Hiroaki Inoueo | 2005-11-08 |
| 6959241 | Engine control device | Hikosaburou Hiraki, Jun Morinaga | 2005-10-25 |
| 6912849 | Cylinder driving system and energy regenerating method thereof | Hiroaki Inoue, Noboru Kanayama, Hikosaburo Hiraki, Hideaki Saito | 2005-07-05 |
| 6058029 | Power unit for generating discharge shock waves | Ryuichi Shimada, Hikosaburo Hiraki | 2000-05-02 |
| 4811712 | Air intake apparatus for use in diesel engine | — | 1989-03-14 |
| 4527995 | Fuel blended with alcohol for diesel engine | Kunihiko Komiyama | 1985-07-09 |
| 4509953 | Fuel blended with alcohol for diesel engine | Kunihiko Komiyama | 1985-04-09 |