Issued Patents 1989
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4875121 | Magnetic head supporting device | Nobuhiro Umebayashi | 1989-10-17 |
| 4870523 | Magnetic head apparatus used for movable magnetic medium with head gap positioning | Osamu Inagoya, Hideo Fujiwara, Takeshi Ohnuki | 1989-09-26 |
| 4810295 | Impression composition | Toshiharu Yagi, Yoshihide Higashihata, Hiromichi Sakuma, Jouji Saito, Minako Inomata +3 more | 1989-03-07 |
| 4796129 | Magnetic head device for improving head placement on a magnetic disc | Nobuhiro Umebayashi | 1989-01-03 |