Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D295180 | Combined vacuum pump and control valves therefor | — | 1988-04-12 |
| D295048 | Combined vacuum pump and control valves therefor | — | 1988-04-05 |
| D295049 | Combined vacuum pump and control valve therefor | — | 1988-04-05 |
| D295050 | Combined vacuum pump and control valves therefor | — | 1988-04-05 |
| 4687021 | Vacuum valve-sensor device | Yoji Ise, Akira Yamaguchi | 1987-08-18 |