Issued Patents All Time
Showing 1–25 of 47 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7522362 | Amplitude servo pattern, magnetic recording medium and the manufacturing method, patterned magnetic transfer master substrate used in the manufacturing method, and magnetic recording/reproducing apparatus | Takashi Komine, Ryuji Sugita, Makoto Nagao | 2009-04-21 |
| 7477463 | Master information carrier for magnetic transfer | Masakazu Nishikawa | 2009-01-13 |
| 7465383 | Master information carrier for magnetic transfer and its production method | Kazuhiro Niitsuma, Masakazu Nishikawa | 2008-12-16 |
| 7365926 | Signal processing method of magnetic recording medium and magnetic record reproduction apparatus | Makoto Nagao | 2008-04-29 |
| 7359133 | Magnetic recording medium and drive apparatus therefor | — | 2008-04-15 |
| 7193796 | Patterned master carrier for magnetic transfer, manufacturing method thereof, magnetic transfer method, recording medium, and magnetic recording and reproduction apparatus | — | 2007-03-20 |
| 7187510 | Method of magnetic transfer to flexible medium | Kazuhiro Niitsuma | 2007-03-06 |
| 7149042 | Master carrier for magnetic transfer | Masakazu Nishikawa, Kazuhiro Niitsuma | 2006-12-12 |
| 7094481 | Master information carrier for magnetic transfer and magnetic transfer method | Masakazu Nishikawa, Kazuhiro Niitsuma, Toshihiro Usa, Kazunori Komatsu | 2006-08-22 |
| 7054082 | Magnetic transfer method for a high-density magnetic recording medium | Masakazu Nishikawa | 2006-05-30 |
| 6950252 | Master carrier for magnetic transfer | Masakazu Nishikawa | 2005-09-27 |
| 6911270 | Master information carrier for magnetic transfer | Masakazu Nishikawa, Kazuhiro Niitsuma, Toshihiro Usa, Kazunori Komatsu | 2005-06-28 |
| 6909563 | Master carrier for magnetic transfer | Masakazu Nishikawa, Kazuhiro Niitsuma | 2005-06-21 |
| 6906877 | Magnetic transfer method for a high-density magnetic recording medium | Masakazu Nishikawa | 2005-06-14 |
| 6887593 | Master information carrier for magnetic transfer | Ryuji Sugita, Masakazu Nishikawa | 2005-05-03 |
| 6816327 | Master information carrier for magnetic transfer and magnetic transfer method | Masakazu Nishikawa, Kazuhiro Niitsuma, Toshihiro Usa, Kazunori Komatsu | 2004-11-09 |
| 5567524 | Magnetic recording medium having a cobalt thin film magnetic layer, carbon protective layer, and fluorolubricant layer | Toshio Ishida, Masaki Satake, Hideomi Watanabe, Tsutomu Okita | 1996-10-22 |
| 5560995 | Magnetic recording medium having a ferromagnetic metal thin film upon which is coated a phosphorous and fluorine containing composition | Kazuyuki Usuki, Toshio Ishida | 1996-10-01 |
| 5556707 | Magnetic recording medium having a lubricant comprising a phosphoric acid monoester and a fluorocarboxylic acid ester | Kazuyuki Usuki, Toshio Ishida | 1996-09-17 |
| 5503943 | Magnetic recording medium | Kunihiko Sano, Hiroaki Doushita | 1996-04-02 |
| 5492764 | Magnetic recording medium having a protective layer containing a tetrazaindene or thiouracil cyclic compound and a fluorine compound | Tsutomu Okita, Toshio Ishida, Masaki Satake, Kazuyuki Usuki | 1996-02-20 |
| 5489480 | Magnetic recording medium and process for producing the same | Kazuyuki Usuki | 1996-02-06 |
| 5405689 | Magnetic recording medium | Kazuyuki Usuki | 1995-04-11 |
| 5334413 | Method for preparing a magnetic recording medium | Toshio Ishida, Yasuo Nishikawa | 1994-08-02 |
| 5322733 | Magnetic recording medium | Hiroaki Doushita | 1994-06-21 |