Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6627253 | Magnetic recording media for longitudinal recording, process for producing the same and magnetic memory apparatus | Hiroyuki Suzuki, Yoshihiro Shiroishi, Sadao Hishiyama, Tomoyuki Ohno, Yotsuo Yahisa +5 more | 2003-09-30 |
| 6335103 | Magnetic recording media for longitudinal recording | Hiroyuki Suzuki, Yoshihiro Shiroishi, Sadao Hishiyama, Tomoyuki Ohno, Yotsuo Yahisa +5 more | 2002-01-01 |
| 5930091 | Magnetic disk having CSS area with concave and convex portions and apparatus containing the same | Masahiko Ono, Yoshishige Endo, Hiroshi Matsumoto, Yoshihiro Moriguchi, Kazuhiro Fujise | 1999-07-27 |
| 5879569 | Magnetic disk and method of and apparatus for manufacturing magnetic disk | Hiroshi Matsumoto, Hiroshi Yashiki, Yoichi Inomata, Tatsuya Yoneda, Kazuhiko Tsutsumi +1 more | 1999-03-09 |
| 5665478 | Magnetic recording media for longitudinal recording | Hiroyuki Suzuki, Yoshihiro Shiroishi, Sadao Hishiyama, Tomoyuki Ohno, Yotsuo Yahisa +5 more | 1997-09-09 |
| 5143794 | Magnetic recording media for longitudinal recording, process for producing the same and magnetic memory apparatus | Hiroyuki Suzuki, Yoshihiro Shiroishi, Sadao Hishiyama, Tomoyuki Ohno, Yotsuo Yahisa +5 more | 1992-09-01 |
| 4315226 | Semiconductor laser device | Naoki Chinone, Kazutoshi Saito, Ryoichi Ito | 1982-02-09 |