Issued Patents All Time
Showing 1–19 of 19 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8883329 | Hexagonal ferrite magnetic powder and method of manufacturing the same, and magnetic recording medium and method of manufacturing the same | Ayako Matsumoto, Toshio Tada, Akira Manabe | 2014-11-11 |
| 8597805 | Binder composition for magnetic recording medium and magnetic recording medium | Masataka Yoshizawa, Ayako Matsumoto | 2013-12-03 |
| 8501331 | Binder composition for magnetic recording medium and magnetic recording medium | Masataka Yoshizawa, Masato Nagura, Ayako Matsumoto | 2013-08-06 |
| 7005203 | Magnetic recording medium | Yuichiro Murayama | 2006-02-28 |
| 6913818 | Magnetic recording medium | Hiroaki Takano | 2005-07-05 |
| 6815055 | Magnetic recording medium | Yuichiro Murayama, Nobuyoshi Asada | 2004-11-09 |
| 6744585 | Magnetic recording medium and method for reproducing magnetic recording | Tetsuji Nishida, Takeshi Nagata | 2004-06-01 |
| 6645648 | Magnetic recording medium comprising a backcoat layer having specific protrusions | Hiroaki Doushita, Tetsuji Nishida | 2003-11-11 |
| 6579592 | Magnetic recording tape with controlled Hc and magnetic flux/unit area value and controlled Cl/Fe intensity | Masaki Suzuki, Hiroaki Doushita, Hiroaki Takano, Hiroo Inaba, Kiyomi Ejiri | 2003-06-17 |
| 6030689 | Magnetic recording medium | Hiroo Inaba, Yuichiro Murayama | 2000-02-29 |
| 5908683 | Magnetic recording medium | Masaki Suzuki, Hiroo Inaba, Hiroaki Takano | 1999-06-01 |
| 5876833 | Magnetic recording medium containing magnetic powder and a polyurethane binder having a specified radius of gyration | Masaki Suzuki, Hiroshi Hashimoto, Hiroaki Takano | 1999-03-02 |
| 5847905 | Cleaning medium for magnetic recording devices, in which the cleaning medium includes a substrate, a lower coating layer containing non-magnetic inorganic particles, and a cleaning area | Hiroo Inaba, Masaki Suzuki, Hiroaki Takano | 1998-12-08 |
| 5804283 | Magnetic recording medium | Hiroo Inaba, Masaki Suzuki, Naoto Abe, Toshiyuki Kitahara, Hiroaki Takano | 1998-09-08 |
| 5413868 | Perpendicular magnetic recording medium comprising a magnetic thin film of cobalt, palladium, chromium and oxygen | Akira Nahara | 1995-05-09 |
| 5340647 | Optomagnetic recording medium | Takashi Yamada, Ryoichi Yamamoto | 1994-08-23 |
| 5109377 | Magneto-optical recording medium and method of producing the same | Ryoichi Yamamoto, Takashi Yamada, Akira Nahara | 1992-04-28 |
| 5075145 | Optical recording medium | Ryoichi Yamamoto, Takashi Yamada | 1991-12-24 |
| 4929320 | Method of making magneto-optical recording medium | Takashi Yamada, Masaaki Nomura, Ryoichi Yamamoto, Akira Nahara | 1990-05-29 |