Issued Patents 2003
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 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 |