Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4889164 | Solenoid controlled valve | Kazuhiro Hozumi, Masaru Arai | 1989-12-26 |
| 4854346 | Control apparatus for manifold type electromagnetic valve device | Koji Nakanishi, Mituo Yoshino | 1989-08-08 |