Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5133423 | Power steering apparatus | Masayuki Watanabe, Yoshihiro Ohashi | 1992-07-28 |
| 4865145 | Power steering apparatus | Masayuki Watanabe, Yoshihiro Ohashi | 1989-09-12 |
| 4784235 | Oil pressure reaction control valve for power steering apparatus | Shuzo Hirakushi | 1988-11-15 |
| 4637484 | Hydraulic control apparatus for a power steering device | Shuzo Hirakushi | 1987-01-20 |