Issued Patents 1989
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4875501 | Electromagnetic proportional control valve apparatus | Jun-ichi Yasuma | 1989-10-24 |
| 4860792 | Electromagnetic control valve | Akira Inaba | 1989-08-29 |
| 4844122 | Electromagnetic valve with two opposed valve seats | — | 1989-07-04 |
| 4809749 | Solenoid valve | — | 1989-03-07 |