Issued Patents All Time
Showing 1–25 of 47 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7095575 | Magnetic disk apparatus, method for determining data track pitch, and self-servo write method | Keizo Miyata, Hiroshi Kohso, Makoto Kimura | 2006-08-22 |
| 7061703 | Master information carrier and method for manufacturing magnetic disc using the same | Keizo Miyata, Nobuyuki Komura, Yasuaki Ban, Taizou Hamada, Hideyuki Hashi | 2006-06-13 |
| 7057834 | Master information carrier and method for manufacturing magnetic disc using the same | Keizo Miyata, Nobuyuki Komura, Yasuaki Ban, Taizou Hamada, Hideyuki Hashi | 2006-06-06 |
| 6994029 | Magnetic transfer method and magnetic transfer device | Hideyuki Hashi, Taizo Hamada, Toshio Makabe, Kiyokazu Toma, Yasuaki Ban +1 more | 2006-02-07 |
| 6980380 | Master information carrier and method for manufacturing magnetic disk | Keizo Miyata, Hideyuki Hashi | 2005-12-27 |
| 6961196 | 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 | 2005-11-01 |
| 6914735 | Manufacturing method for magnetic recording medium, and master information carrier used therefor | Taizou Hamada, Yasuaki Ban | 2005-07-05 |
| 6909565 | Magnetic transfer method and magnetic transfer apparatus | Hideyuki Hashi, Taizou Hamada, Kiyokazu Tohma | 2005-06-21 |
| 6898032 | Method and apparatus for magnetic printing | Hideyuki Hashi, Taizou Hamada, Kiyokazu Tohma | 2005-05-24 |
| 6858329 | Master disc and method for manufacturing magnetic disc using the same | Taizou Hamada, Hideyuki Hashi, Nobuyuki Komura, Yasuaki Ban, Keizo Miyata +1 more | 2005-02-22 |
| 6858328 | Master information support | Kiyokazu Tohma, Keizo Miyata, Yoriko Takai, Taizou Hamada, Hiroshi Ryonai | 2005-02-22 |
| 6850377 | Master information carrier/magnetic recording medium defect inspection method | Hideyuki Hashi, Taizou Hamada | 2005-02-01 |
| 6821869 | Photomask, method of generating resist pattern, and method of fabricating master information carrier | Terumi Yanagi, Nobuyuki Komura, Keizo Miyata | 2004-11-23 |
| 6785070 | Magnetic transcription device | Kouji Taniguchi, Kaoru Matsuoka, Taizou Hamada, Hideyuki Hashi, Yasuaki Ban | 2004-08-31 |
| 6781777 | Master information carrier and method for manufacturing information recording medium using the same | Keizo Miyata, Hideyuki Hashi | 2004-08-24 |
| 6714367 | Master information medium and method of master information recording | Hiroshi Ryonai, Nobuyuki Komura, Keizo Miyata, Kiyokazu Tohma | 2004-03-30 |
| 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 |