Issued Patents All Time
Showing 1–15 of 15 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, Tomoyuki Ohno, Yotsuo Yahisa, Yoshibumi Matsuda +5 more | 2003-09-30 |
| 6335103 | Magnetic recording media for longitudinal recording | Hiroyuki Suzuki, Yoshihiro Shiroishi, Tomoyuki Ohno, Yotsuo Yahisa, Yoshibumi Matsuda +5 more | 2002-01-01 |
| 5665478 | Magnetic recording media for longitudinal recording | Hiroyuki Suzuki, Yoshihiro Shiroishi, Tomoyuki Ohno, Yotsuo Yahisa, Yoshibumi Matsuda +5 more | 1997-09-09 |
| 5605733 | Magnetic recording medium, method for its production, and system for its use | Akira Ishikawa, Tomoo Yamamoto, Yoshihiro Shiroishi, Tomoyuki Ohno, Yotsuo Yahisa +1 more | 1997-02-25 |
| 5236791 | Magnetic recording medium and magnetic storage | Yotsuo Yahisa, Yoshihiro Shiroishi, Tomoyuki Ohno, Shinichiro Saitoh | 1993-08-17 |
| 5147732 | Longitudinal magnetic recording media and magnetic memory units | Yoshihiro Shiroishi, Takeo Yamashita, Noriyuki Kumasaka, Yoshibumi Matsuda, Hiroyuki Suzuki +4 more | 1992-09-15 |
| 5143794 | Magnetic recording media for longitudinal recording, process for producing the same and magnetic memory apparatus | Hiroyuki Suzuki, Yoshihiro Shiroishi, Tomoyuki Ohno, Yotsuo Yahisa, Yoshibumi Matsuda +5 more | 1992-09-01 |
| 4939045 | Magnetic recording medium | Kazuetsu Yoshida, Yoshihiro Shiroishi, Makoto Saito, Norikazu Tsumita, Takeo Yamashita +8 more | 1990-07-03 |
| 4883711 | Magnetic recording medium | Yoshihiro Shiroishi, Hiroyuki Suzuki, Tomoyuki Ohno, Yoshibumi Matsuda, Kazumasa Takagi +4 more | 1989-11-28 |
| 4842917 | Magnetic recording medium and process for producing the same | Tomoyuki Ohno, Yoshihiro Shiroishi, Hiroyuki Suzuki, Takaaki Shirakura, Shinya Matsuoka +5 more | 1989-06-27 |
| 4833020 | Magnetic recording medium | Yoshihiro Shiroishi, Hiroyuki Suzuki, Tomoyuki Ohno, Yoshibumi Matsuda, Kazumasa Takagi +4 more | 1989-05-23 |
| 4792497 | Magnetic recording media for longitudinal recording | Hiroyuki Suzuki, Yoshihiro Shiroishi, Tomoyuki Ohno, Kazuetsu Yoshida, Shyuichi Kojima +4 more | 1988-12-20 |
| 4786553 | Magnetic recording medium | Yoshihiro Shiroishi, Hiroyuki Suzuki, Norikazu Tsumita, Tsuneo Suganuma, Yoshio Gobara +3 more | 1988-11-22 |
| 4621030 | Perpendicular magnetic recording medium and manufacturing method thereof | Yasutaro Uesaka, Hideo Fujiwara, Kazuo Shiiki | 1986-11-04 |
| 4544591 | Perpendicular magnetic recording medium | Yasutaro Uesaka, Masahiro Kitada, Noboru Shimizu, Hideo Tanabe, Hideo Fujiwara | 1985-10-01 |