Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6139285 | Hydraulic pump for power steering system | Yukio Uchida, Tetsuya Ishii, Atsushi Ishizuka | 2000-10-31 |
| 5613840 | Pump including a control valve and sealing member | Kazuyoshi Ishizaki, Atsushi Ishizuka, Shouji Ohya, Miyoko Hamao | 1997-03-25 |
| 5595478 | Pump and control valve with annular sealing member to prevent corrosion | Kazuyoshi Ishizaki, Atsushi Ishizuka, Shouji Ohya, Miyoko Hamao | 1997-01-21 |
| 5540566 | Pump including a control valve | Kazuyoshi Ishizaki, Atsushi Ishizuka, Shouji Ohya, Miyoko Hamao | 1996-07-30 |