Issued Patents All Time
Showing 26–29 of 29 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4975324 | Perpendicular magnetic film of spinel type iron oxide compound and its manufacturing process | Hideo Torii, Eiji Fujii, Masaki Aoki, Keiichi Ochiai | 1990-12-04 |
| 4957812 | Composite magnetic powder, method for producing the same and recording medium containing the same | Masaki Aoki, Hideo Torii, Keiichi Ochiai, Eiji Fujii | 1990-09-18 |
| 4886714 | Platelike magnetic powder and a recording medium which uses the platelike magnetic powder | Hideo Torii, Masaki Aoki, Hideaki Komoda, Ikuo Ota, Keiichi Ochiai | 1989-12-12 |
| D297301 | Clamp | Takashi Aoki, Hidenori Aoki | 1988-08-23 |