Issued Patents All Time
Showing 1–25 of 43 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7982984 | Magnetic transfer master carrier, magnetic transfer method, and magnetic recording medium | Yoichi Nishida, Hideyuki Kubota, Masakazu Nishikawa, Makoto Nagao, Takashi Komine | 2011-07-19 |
| 7974028 | Magnetic transfer master carrier and magnetic transfer method | Yoichi Nishida, Hideyuki Kubota, Makoto Nagao, Takashi Komine | 2011-07-05 |
| 7641282 | Locking device for seat back | Takao Hinata, Yoshihiko Yamauchi | 2010-01-05 |
| 7522362 | Amplitude servo pattern, magnetic recording medium and the manufacturing method, patterned magnetic transfer master substrate used in the manufacturing method, and magnetic recording/reproducing apparatus | Takashi Komine, Tadashi Yasunaga, Makoto Nagao | 2009-04-21 |
| 6961196 | Master information carrier, method for producing the carrier, method and apparatus for writing information into magnetic record medium using the carrier | Tatsuaki Ishida, Kiyokazu Tohma, Kazunari Yoshimoto, Keizou Miyata, Hiroshi Ryonai | 2005-11-01 |
| 6887593 | Master information carrier for magnetic transfer | Masakazu Nishikawa, Tadashi Yasunaga | 2005-05-03 |
| 6606209 | Master information carrier, method for producing the carrier, method and apparatus for writing information into magnetic record medium using the carrier | Tatsuaki Ishida, Kiyokazu Tohma, Keizou Miyata, Hiroshi Ryonai | 2003-08-12 |
| 6606208 | Master information carrier, method for producing the carrier, method and apparatus for writing information into magnetic record medium using the carrier | Tatsuaki Ishida, Kiyokazu Tohma, Kazunari Yoshimoto, Keizou Miyata | 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 | Tatsuaki Ishida, 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 | Tatsuaki Ishida, 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 | Tatsuaki Ishida, Kiyokazu Tohma, Kazunari Yoshimoto, Keizou Miyata, Hiroshi Ryonai | 2003-05-20 |
| 6433944 | Master carrier for magnetic transfer and method for transfer | Makoto Nagao, Kazutoshi Katayama | 2002-08-13 |
| 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, Kiyokazu Tohma, Keizou Miyata, Hiroshi Ryonai | 2002-02-12 |
| 6088178 | Magnetic recording and reproducing apparatus | Tatsuaki Ishida, Hiroyuki Hasegawa | 2000-07-11 |
| 5912783 | Magnetic recording and reproducing apparatus having ring-type magnetic head with metallic soft magnetic films of differing thicknesses | Tatsuaki Ishida, Noriyasu Echigo, Hiroyuki Hasegawa | 1999-06-15 |
| 5901012 | Magnetic recording and reproduction apparatus ring-type magnetic head for recording signals to recording medium having oblique axis of easy magnetization | Tatsuaki Ishida, Noriyasu Echigo | 1999-05-04 |
| 5851660 | Method of fabricating a thin-film magnetic recording medium and thin-film magnetic recording medium | Kiyokazu Tohma, Kazunari Yoshimoto | 1998-12-22 |
| 5691008 | Magnetic recording media fabrication method | Kiyokazu Thoma, Kazunari Yoshimoto, Tatsuaki Ishida | 1997-11-25 |
| 5679166 | Magnetic recording media, magnetic recording media fabrication method, and fabrication equipment | Kiyokazu Thoma, Kazunari Yoshimoto, Tatsuaki Ishida | 1997-10-21 |
| 5679410 | Continuous fabrication of thin film magnetic recording medium with vacuum deposition | Kiyokazu Tohma, Tatsuaki Ishida, Kazunari Yoshimoto | 1997-10-21 |
| 5665460 | Magnetic recording medium | Kiyokazu Tohma, Tatsuaki Ishida, Kazunari Yoshimoto | 1997-09-09 |
| 5569523 | Magnetic recording medium having a ferromagnetic thin film in which 70% to 90% of the total magnetic particles have residual magnetization vectors within .+-.10.degree. of the easy axis direction | Kiyokazu Thoma, Kazunari Yoshimoto, Tatsuaki Ishida | 1996-10-29 |
| 5554440 | Magnetic recording medium and method for producing the same | Tatsuaki Ishida, Kiyokazu Tohma, Yasuaki Ban | 1996-09-10 |
| 5549936 | Manufacturing method of magnetic recording medium | Kiyokazu Tohma, Kazunari Yoshimoto, Tatsuaki Ishida | 1996-08-27 |
| 5534324 | Magnetic recording medium and method for producing the same | Kiyokazu Tohma, Tatsuaki Ishida, Yasuaki Ban | 1996-07-09 |