Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6599111 | Vane pump having an intake groove through a side wall member | Mizuo Ohtaki, Yukio Uchida, Miyoko Hamao | 2003-07-29 |
| 5613840 | Pump including a control valve and sealing member | Masateru Yamamuro, Atsushi Ishizuka, Shouji Ohya, Miyoko Hamao | 1997-03-25 |
| 5595478 | Pump and control valve with annular sealing member to prevent corrosion | Masateru Yamamuro, Atsushi Ishizuka, Shouji Ohya, Miyoko Hamao | 1997-01-21 |
| 5540566 | Pump including a control valve | Masateru Yamamuro, Atsushi Ishizuka, Shouji Ohya, Miyoko Hamao | 1996-07-30 |
| 5236315 | Hydraulic pump for power-assisted steering system | Miyoko Hamao, Masahiko Hara | 1993-08-17 |
| 5209648 | Rotary-vane pump | Masahiko Hara | 1993-05-11 |