Issued Patents 2004
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 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 |