Issued Patents All Time
Showing 1–23 of 23 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9868846 | Curable composition for imprints, patterning method and pattern | Kunihiko Kodama, Yuichiro Enomoto, Tadashi Omatsu, Hirotaka KITAGAWA | 2018-01-16 |
| 7112376 | Magnetic recording medium | Kenichi Moriwaki, Masakazu Nishikawa | 2006-09-26 |
| 6977786 | Information recording method using a vertical magnetic system | Masakazu Nishikawa, Makoto Nagao | 2005-12-20 |
| 6893714 | Magnetic recording medium | Kenichi Moriwaki | 2005-05-17 |
| 6869688 | Magnetic recording medium | — | 2005-03-22 |
| 6829201 | Magnetic information recording medium having regions magnetized in different directions, a method for recording and reproducing for the same, and a method of manufacturing the same | Masakazu Nishikawa, Yoshihisa Usami, Makoto Nagao | 2004-12-07 |
| 6740407 | Magnetic recording medium and magnetic recording mode using floppy disk | Kazutoshi Katayama | 2004-05-25 |
| 6678101 | Method of magnetically transferring information signal from master medium to slave medium | Masakazu Nishikawa, Masashi Aoki | 2004-01-13 |
| 6587289 | Method of magnetically transferring information signal from master medium to slave medium | Masakazu Nishikawa, Masashi Aoki | 2003-07-01 |
| 6525908 | Floppy disk | — | 2003-02-25 |
| 6391419 | Magnetic recording medium | Kazutoshi Katayama | 2002-05-21 |
| 6120836 | Process of producing a magnetic recording medium | — | 2000-09-19 |
| 6106895 | Magnetic recording medium and process for producing the same | — | 2000-08-22 |
| 5958544 | Magnetic recording medium and process for producing the same | — | 1999-09-28 |
| 5914151 | Method for forming silica protective films | — | 1999-06-22 |
| 5869186 | Magnetic recording medium | Kunihiko Sano, Toshio Ishida | 1999-02-09 |
| 5707742 | Magnetic recording medium comprising a ferromagnetic metal thin film, protective layer, and an alkylamine perfluoropolyether lubricant | Toshio Ishida, Kunihiko Sano | 1998-01-13 |
| 5560995 | Magnetic recording medium having a ferromagnetic metal thin film upon which is coated a phosphorous and fluorine containing composition | Toshio Ishida, Tadashi Yasunaga | 1996-10-01 |
| 5556707 | Magnetic recording medium having a lubricant comprising a phosphoric acid monoester and a fluorocarboxylic acid ester | Toshio Ishida, Tadashi Yasunaga | 1996-09-17 |
| 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, Tadashi Yasunaga | 1996-02-20 |
| 5489480 | Magnetic recording medium and process for producing the same | Tadashi Yasunaga | 1996-02-06 |
| 5405689 | Magnetic recording medium | Tadashi Yasunaga | 1995-04-11 |
| 5395696 | Magnetic recording medium having a lubricant layer of a fluoroalkyl sulfo-compound | Toshio Ishida, Hideomi Watanabe, Tsutomu Okita, Kunihiko Honda | 1995-03-07 |