Issued Patents 2003
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6665133 | Magnetic transfer method and magnetic transfer device | Hideyuki Hashi, Taizo Hamada, Toshio Makabe, Kiyokazu Toma, Yasuaki Ban +1 more | 2003-12-16 |
| 6646820 | Method for recording magnetic recording medium | Taizou Hamada, Hideyuki Hashi, Keizo Miyata, Yasuaki Ban, Hiromi Kita | 2003-11-11 |
| 6611388 | Master information magnetic recorder | Keizo Miyata, Taizou Hamada, Kiyokazu Tohma, Hiroshi Ryonai | 2003-08-26 |
| 6606208 | Master information carrier, method for producing the carrier, method and apparatus for writing information into magnetic record medium using the carrier | Ryuji Sugita, Kiyokazu Tohma, Kazunari Yoshimoto, Keizou Miyata | 2003-08-12 |
| 6606209 | Master information carrier, method for producing the carrier, method and apparatus for writing information into magnetic record medium using the carrier | Ryuji Sugita, Kiyokazu Tohma, Keizou Miyata, Hiroshi Ryonai | 2003-08-12 |
| 6590727 | Master information carrier, method for producing the carrier, method and apparatus for writing information into magnetic record medium using the carrier | Ryuji Sugita, Kiyokazu Tohma, Kazunari Yoshimoto, Keizou Miyata | 2003-07-08 |
| 6587290 | Master information carrier, method for producing the carrier, and method apparatus for writing information into magnetic record medium using the carrier | Ryuji Sugita, Kiyokazu Tohma, Kazunari Yoshimoto, Keizou Miyata | 2003-07-01 |
| 6567227 | Master information carrier, method for producing the carrier, method and apparatus for writing information into magnetic record medium using the carrier | Ryuji Sugita, Kiyokazu Tohma, Kazunari Yoshimoto, Keizou Miyata, Hiroshi Ryonai | 2003-05-20 |
| 6529341 | Magnetic recording/reproduction device using preformat information | Taizou Hamada, Kiyokazu Tohma, Hiroshi Ryonai, Keizou Miyata | 2003-03-04 |