Issued Patents All Time
Showing 51–68 of 68 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5411630 | Magnetic disk manufacturing method | Norikazu Nagase, Yoshihiro Moriguchi, Youichi Inomata, Hiroshi Yashiki, Masaki Ohura | 1995-05-02 |
| 5388020 | Magnetic disk having improved surface configuration and magnetic disk unit including same | Takao Nakamura, Nobuya Sekiyama, Hiroshi Tani | 1995-02-07 |
| 5364655 | Simultaneous double sides polishing method | Takao Nakamura, Nobuya Sekiyama, Tsuneo Kawai | 1994-11-15 |
| 5353182 | Magnetic disk unit having magnetic disks and a magnetic head with a head slider which is in contact with surfaces of the magnetic disk | Takao Nakamura, Nobuya Sekiyama, Masaki Ohura, Noriaki Okamoto, Masami Masuda | 1994-10-04 |
| 5285343 | Magnetic disk with surface protective layer having convex portions and magnetic disk apparatus including such a magnetic disk | Hideaki Tanaka, Kenichi Gomi, Shoichi Sawahata, Maki Kondo, Masaki Ohura +6 more | 1994-02-08 |
| 5280401 | Magnetic recording medium, method for producing same and magnetic recording apparatus | Youichi Inomata, Masaki Ohura | 1994-01-18 |
| 5202810 | Magnetic disk having an improved surface configuration | Takao Nakamura, Nobuya Sekiyama, Masaki Ohura, Noriaki Okamoto, Masami Masuda | 1993-04-13 |
| 5123933 | Method of producing magnetic disk | Yasushi Ito, Masaaki Imamura, Jun Fumioka | 1992-06-23 |
| 5028242 | Lapping member and lapping tape | Yasushi Ito, Masaaki Imamura, Jun Fumioka | 1991-07-02 |
| 4842618 | Method of producing magnetic disk | Yasushi Ito, Masaaki Imamura, Jun Fumioka | 1989-06-27 |
| 4789581 | Magnetic recording medium | Hajime Fukke, Motoo Akagi, Waichi Nagashiro | 1988-12-06 |
| 4762534 | Method of producing magnetic disk | Yasushi Ito, Masaaki Imamura, Jun Fumioka | 1988-08-09 |
| 4721646 | Magnetic recording medium | Keigo Iechika, Fuzio Maeda, Masa-aki Imamura, Eiichi Takasuna, Youichi Kawakubo | 1988-01-26 |
| 4430387 | Base plate for magnetic recording disc | Nobuo Nakagawa, Katsuo Abe, Takao Edamura, Takao Nakamura | 1984-02-07 |
| 4353937 | Coating method | Katsuyoshi Chiba, Teruo Tsunoda, Mitsushi Endo, Fumihiko Sawase, Katuji Itikawa +1 more | 1982-10-12 |
| 4238341 | Composition of magnetic recording media | Heigo Ishihara, Hajime Fukke, Katsuyoshi Chiba, Waichi Nagashiro, Teruo Tsunoda +1 more | 1980-12-09 |
| 4229312 | Method of manufacturing a paint composite for magnetic films | Waichi Nagashiro, Hajime Fukke, Teruo Tsunoda, Teruaki Kobayashi, Yoichi Oba +4 more | 1980-10-21 |
| 4189508 | Process for the preparation of magnetic recording medium | Katsuyoshi Chiba, Teruo Tsunoda, Hajime Fukke, Teruaki Kobayashi, Heigo Ishihara +2 more | 1980-02-19 |