Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6758128 | Hydraulic circuit for working machine | Yoshiyuki Shimada | 2004-07-06 |
| 6241482 | Hydraulic pilot circuit | — | 2001-06-05 |
| 5352095 | Method for controlling hydraulic pump driven by engine | Masayuki Tanaka, Isao Murota, Kazuhito Nakai | 1994-10-04 |
| 5266010 | Method and apparatus for controlling hydraulic pump | Masayuki Tanaka, Isao Murota, Kazuhito Nakai | 1993-11-30 |
| 5198800 | Alarm system for constructional machine | Shoji Tozawa, Saburo Tanaka | 1993-03-30 |