Issued Patents All Time
Showing 1–21 of 21 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8055055 | Method for inspecting a foreign matter on mirror-finished substrate | Tatsutoshi Suenaga | 2011-11-08 |
| 7220323 | Cleaning method for magnetic transfer carrier | Hideyuki Hashi, Keizo Miyata | 2007-05-22 |
| 7061703 | Master information carrier and method for manufacturing magnetic disc using the same | Tatsuaki Ishida, Keizo Miyata, Nobuyuki Komura, Yasuaki Ban, Hideyuki Hashi | 2006-06-13 |
| 7057834 | Master information carrier and method for manufacturing magnetic disc using the same | Tatsuaki Ishida, Keizo Miyata, Nobuyuki Komura, Yasuaki Ban, Hideyuki Hashi | 2006-06-06 |
| 6914735 | Manufacturing method for magnetic recording medium, and master information carrier used therefor | Tatsuaki Ishida, Yasuaki Ban | 2005-07-05 |
| 6909565 | Magnetic transfer method and magnetic transfer apparatus | Hideyuki Hashi, Tatsuaki Ishida, Kiyokazu Tohma | 2005-06-21 |
| 6903886 | Magnetic transfer apparatus and particle monitoring method | Nobuhide Matsuda, Hideyuki Hashi, Hiroshi Hashida, Eiichi Fujisawa, Shoichi Seki | 2005-06-07 |
| 6898032 | Method and apparatus for magnetic printing | Hideyuki Hashi, Tatsuaki Ishida, Kiyokazu Tohma | 2005-05-24 |
| 6858328 | Master information support | Tatsuaki Ishida, Kiyokazu Tohma, Keizo Miyata, Yoriko Takai, Hiroshi Ryonai | 2005-02-22 |
| 6858329 | Master disc and method for manufacturing magnetic disc using the same | Hideyuki Hashi, Tatsuaki Ishida, Nobuyuki Komura, Yasuaki Ban, Keizo Miyata +1 more | 2005-02-22 |
| 6859339 | Master information magnetic recording apparatus and method for manufacturing magnetic recording medium in which information is recorded by using this | Yasuaki Ban, Keizo Miyata, Kouji Taniguchi, Masaya Sakaguchi | 2005-02-22 |
| 6850377 | Master information carrier/magnetic recording medium defect inspection method | Hideyuki Hashi, Tatsuaki Ishida | 2005-02-01 |
| 6833972 | Method for reproducing phase information signals in an information recording device | Yasuaki Ban | 2004-12-21 |
| 6785070 | Magnetic transcription device | Kouji Taniguchi, Kaoru Matsuoka, Hideyuki Hashi, Yasuaki Ban, Tatsuaki Ishida | 2004-08-31 |
| 6762892 | Magnetic transferring method and magnetic transferring apparatus | Hideyuki Hashi | 2004-07-13 |
| 6674588 | Magnetic transfer apparatus | Hideyuki Hashi, Nobuhide Matsuda, Mitsuo Kobayashi | 2004-01-06 |
| 6646820 | Method for recording magnetic recording medium | Tatsuaki Ishida, Hideyuki Hashi, Keizo Miyata, Yasuaki Ban, Hiromi Kita | 2003-11-11 |
| 6611388 | Master information magnetic recorder | Keizo Miyata, Tatsuaki Ishida, Kiyokazu Tohma, Hiroshi Ryonai | 2003-08-26 |
| 6529341 | Magnetic recording/reproduction device using preformat information | Tatsuaki Ishida, Kiyokazu Tohma, Hiroshi Ryonai, Keizou Miyata | 2003-03-04 |
| 6242085 | Magnetic recording medium and method for producing the same | Hiroshi Ryonai, Tatsuaki Ishida, Kiyokazu Tohma, Keizou Miyata | 2001-06-05 |
| 5602702 | Magnetic recording/reproducing apparatus having an offset head chip | Takaaki Maegawa, Akio Kuroe, Hiroshi Kanchiku | 1997-02-11 |