Issued Patents All Time
Showing 1–12 of 12 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8946579 | Touch panel | Seiichi Minami | 2015-02-03 |
| 6961196 | Master information carrier, method for producing the carrier, method and apparatus for writing information into magnetic record medium using the carrier | Tatsuaki Ishida, Ryuji Sugita, Kiyokazu Tohma, Kazunari Yoshimoto, Keizou Miyata | 2005-11-01 |
| 6858328 | Master information support | Tatsuaki Ishida, Kiyokazu Tohma, Keizo Miyata, Yoriko Takai, Taizou Hamada | 2005-02-22 |
| 6714367 | Master information medium and method of master information recording | Tatsuaki Ishida, Nobuyuki Komura, Keizo Miyata, Kiyokazu Tohma | 2004-03-30 |
| 6611388 | Master information magnetic recorder | Keizo Miyata, Tatsuaki Ishida, Taizou Hamada, Kiyokazu Tohma | 2003-08-26 |
| 6606209 | Master information carrier, method for producing the carrier, method and apparatus for writing information into magnetic record medium using the carrier | Tatsuaki Ishida, Ryuji Sugita, Kiyokazu Tohma, Keizou Miyata | 2003-08-12 |
| 6567227 | Master information carrier, method for producing the carrier, method and apparatus for writing information into magnetic record medium using the carrier | Tatsuaki Ishida, Ryuji Sugita, Kiyokazu Tohma, Kazunari Yoshimoto, Keizou Miyata | 2003-05-20 |
| 6529341 | Magnetic recording/reproduction device using preformat information | Tatsuaki Ishida, Taizou Hamada, Kiyokazu Tohma, Keizou Miyata | 2003-03-04 |
| 6347016 | Master information carrier, process for producing the carrier, and method and apparatus for recording master information signal on magnetic recording medium by using the carrier | Tatsuaki Ishida, Ryuji Sugita, Kiyokazu Tohma, Keizou Miyata | 2002-02-12 |
| 6242085 | Magnetic recording medium and method for producing the same | Tatsuaki Ishida, Kiyokazu Tohma, Keizou Miyata, Taizou Hamada | 2001-06-05 |
| 5636092 | Magnetic head having chromium nitride protective film for use in magnetic recording and/or reproducing apparatus and method of manufacturing the same | Shogo Nasu | 1997-06-03 |
| 5475552 | Magnetic head having a chromium nitride protective film for use in a magnetic recording and/or reproducing apparatus and a method of manufacturing the same | Shogo Nasu | 1995-12-12 |