Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7061703 | Master information carrier and method for manufacturing magnetic disc using the same | Tatsuaki Ishida, Keizo Miyata, Yasuaki Ban, Taizou Hamada, Hideyuki Hashi | 2006-06-13 |
| 7057834 | Master information carrier and method for manufacturing magnetic disc using the same | Tatsuaki Ishida, Keizo Miyata, Yasuaki Ban, Taizou Hamada, Hideyuki Hashi | 2006-06-06 |
| 6858329 | Master disc and method for manufacturing magnetic disc using the same | Taizou Hamada, Hideyuki Hashi, Tatsuaki Ishida, Yasuaki Ban, Keizo Miyata +1 more | 2005-02-22 |
| 6821869 | Photomask, method of generating resist pattern, and method of fabricating master information carrier | Terumi Yanagi, Tatsuaki Ishida, Keizo Miyata | 2004-11-23 |
| 6714367 | Master information medium and method of master information recording | Tatsuaki Ishida, Hiroshi Ryonai, Keizo Miyata, Kiyokazu Tohma | 2004-03-30 |
| 5612146 | Soft-magnetic multilayer thin film for use in a thin-film magnetic head and a method of manufacturing the same | Yuuji Omata | 1997-03-18 |
| 5575897 | Method of manufacturing soft-magnetic multilayer thin film including re-dissolution effect magnetically isolating layer | Yuuji Omata | 1996-11-19 |