Issued Patents 1997
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5665478 | Magnetic recording media for longitudinal recording | Hiroyuki Suzuki, Yoshihiro Shiroishi, Sadao Hishiyama, Yotsuo Yahisa, Yoshibumi Matsuda +5 more | 1997-09-09 |
| 5618639 | Magnetic recording medium and magnetic recording apparatus | Yoshihiro Shiroishi, Yotsuo Yahisa, Akira Osaki, Yuichi Ootani | 1997-04-08 |
| 5605733 | Magnetic recording medium, method for its production, and system for its use | Akira Ishikawa, Sadao Hishiyama, Tomoo Yamamoto, Yoshihiro Shiroishi, Yotsuo Yahisa +1 more | 1997-02-25 |