Issued Patents 2003
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6665133 | Magnetic transfer method and magnetic transfer device | Hideyuki Hashi, Taizo Hamada, Toshio Makabe, Kiyokazu Toma, Tatsuaki Ishida +1 more | 2003-12-16 |
| 6646820 | Method for recording magnetic recording medium | Tatsuaki Ishida, Taizou Hamada, Hideyuki Hashi, Yasuaki Ban, Hiromi Kita | 2003-11-11 |
| 6611388 | Master information magnetic recorder | Tatsuaki Ishida, Taizou Hamada, Kiyokazu Tohma, Hiroshi Ryonai | 2003-08-26 |