Issued Patents All Time
Showing 26–31 of 31 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4760709 | Five-way valve having simultaneous defrosting and heating functions | Tadatoshi Ashikaga, Hiroshi Kuno, Masakazu Isobe, Hideaki Ohhira | 1988-08-02 |
| 4644760 | Reversible four-way valve for reversible refrigerating cycle | Masakazu Isobe, Hiroshi Kuno | 1987-02-24 |
| 4403237 | Charge transfer device having a bent charge transfer channel | Yoshio Ohkubo, Hiroshi Ohishi | 1983-09-06 |
| 4401383 | Transfer device for use in retention type electrophotographic copying machine | Yoshiro Suzuki, Tadahiro Yasuda, Masaji Nishikawa, Eiichi Sato | 1983-08-30 |
| 4228816 | Fire safe butterfly valve | — | 1980-10-21 |
| 4202365 | Fire tested butterfly valve | Jerry D. MacAfee, James F. Donnelly | 1980-05-13 |