Issued Patents All Time
Showing 1–13 of 13 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6989535 | Atomic force microscopy, method of measuring surface configuration using the same, and method of producing magnetic recording medium | Hiroshi Tani, Yoko Ogawa, Masanori Inoue, Koji Sonoda | 2006-01-24 |
| 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 |
| 5985402 | Magnetic disk and its manufacturing method | Takao Nakamura, Hiroyuki Kataoka | 1999-11-16 |
| 5825591 | Frictionally sliding head magnet disk apparatus | Takao Nakamura, Nobuya Sekiyama, Keiko Nakano, Kenji Furusawa, Hiroyuki Kataoka +1 more | 1998-10-20 |
| 5744256 | Magnetic recording medium and method of producing same | Noriyoshi Goda, Shinya Matsuoka, Tatsuo Kawaide | 1998-04-28 |
| 5737159 | Magnetic disk and its manufacturing method | Takao Nakamura, Hiroyuki Kataoka | 1998-04-07 |
| 5665478 | Magnetic recording media for longitudinal recording | Hiroyuki Suzuki, Yoshihiro Shiroishi, Sadao Hishiyama, Tomoyuki Ohno, Yotsuo Yahisa +5 more | 1997-09-09 |
| 5158833 | Magnetic recording medium | Shinya Matsuoka, Masaki Ohura, Yoshihiro Shiraisi | 1992-10-27 |
| 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 |
| 4939614 | Magnetic disk medium with circumferentially textured surfaces and varied surface roughness and method of producing the same | Shinya Matsuoka, Hiroshi Yashiki, Masanori Arayashiki, Masaki Ohura | 1990-07-03 |
| 4842917 | Magnetic recording medium and process for producing the same | Tomoyuki Ohno, Yoshihiro Shiroishi, Sadao Hishiyama, Hiroyuki Suzuki, Shinya Matsuoka +5 more | 1989-06-27 |
| 4786553 | Magnetic recording medium | Yoshihiro Shiroishi, Sadao Hishiyama, Hiroyuki Suzuki, Norikazu Tsumita, Tsuneo Suganuma +3 more | 1988-11-22 |