Issued Patents All Time
Showing 1–10 of 10 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5296995 | Method of magnetically recording and reading data, magnetic recording medium, its production method and magnetic recording apparatus | Seiji Yonezawa, Keiji Kataoka, Tsuneo Terasawa, Keizo Kato, Harukazu Miyamoto +3 more | 1994-03-22 |
| 5180608 | Process for producing a rigid magnetic disk by longitudinally generating standing waves or interference waves in an undried applied magnetic paint | Katsuyoshi Chiba, Masayuki Katsumoto, Yasutaro Uesaka, Heigo Ishihara, Iwao Matsuyama +3 more | 1993-01-19 |
| 5180616 | Hard disk magnetic recording medium comprising magnetic powder and a binder and having a specified magnetic layer thickness and surface roughness | Motoo Akagi, Iwao Matsuyama, Masayuki Katsumoto, Hitoshi Inoue, Naoki Kodama +1 more | 1993-01-19 |
| 5034243 | Method for magnetic orientation of magnetic recording medium using Meissner effect of high Tc superconductor | Katsuyoshi Chiba, Masayuki Katsumoto, Yasutaro Uesaka, Heigo Ishihara, Naoki Kodama +2 more | 1991-07-23 |
| 5028496 | Magnetic coated recording medium and method of manfacturing the same | Yasutaro Uesaka, Katsuyoshi Chiba, Iwao Matsuyama | 1991-07-02 |
| 4873129 | Magnetic recording medium | — | 1989-10-10 |
| 4789581 | Magnetic recording medium | Motoo Akagi, Yoshiki Kato, Waichi Nagashiro | 1988-12-06 |
| 4238341 | Composition of magnetic recording media | Yoshiki Kato, Heigo Ishihara, Katsuyoshi Chiba, Waichi Nagashiro, Teruo Tsunoda +1 more | 1980-12-09 |
| 4229312 | Method of manufacturing a paint composite for magnetic films | Waichi Nagashiro, Yoshiki Kato, Teruo Tsunoda, Teruaki Kobayashi, Yoichi Oba +4 more | 1980-10-21 |
| 4189508 | Process for the preparation of magnetic recording medium | Katsuyoshi Chiba, Yoshiki Kato, Teruo Tsunoda, Teruaki Kobayashi, Heigo Ishihara +2 more | 1980-02-19 |