Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5648014 | Acicular magnetic iron oxide particles and process for producing the same | Mitsuaki Hatatani, Osamu Okimoto, Toshitada Shigemura, Hideaki Sadamura | 1997-07-15 |
| 5154592 | Scroll type fluid apparatus with rotation restraining mechanism | Iwao Ohtani, Takayuki Ando | 1992-10-13 |
| 4662826 | Vacuum pump system including serially connected rotary and reciprocating vacuum pumps | Michio Nitta, Hiroyuki Suzuki | 1987-05-05 |