Issued Patents All Time
Showing 1–25 of 42 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7352658 | Method for recording information data to a recording medium by irradiation with a light beam and application of a magnetic field | Katsusuke Shimazaki, Norio Ohta | 2008-04-01 |
| 7227818 | Magneto-optical data recording/reproducing method | Tsuyoshi Toda, Takeshi Maeda, Fumio Kugiya, Hiroshi Ide, Hiroyuki Tsuchinaga +2 more | 2007-06-05 |
| 7050253 | Magnetic recording media and magnetic storage apparatus using the same | Tetsuya Kanbe, Ichiro Tamai, Yuzuru Hosoe, Kiwamu Tanahashi, Yoshio Takahashi +2 more | 2006-05-23 |
| 6970400 | Information recording medium with magnetic marks, recording and reproducing apparatus therefor, and head positioning method using detected magnetic leakage fields from the magnetic marks | Kouichirou Wakabayashi, Tsuyoshi Onuma, Teruaki Takeuchi, Nobuyuki Inaba | 2005-11-29 |
| 6944117 | Information recording medium and information recording device | Hiroki Yamamoto, Takashi Naito, Ken Takahashi, Sumio Hosaka, Motoyasu Terao +2 more | 2005-09-13 |
| 6893746 | Magnetic recording medium with high thermal stability, method for producing the same, and magnetic recording apparatus | Norio Ohta, Kouichirou Wakabayashi, Teruaki Takeuchi, Harumi Hieida, Masaki Sekine +5 more | 2005-05-17 |
| 6844092 | Optically functional element and production method and application therefor | Hiroki Yamamoto, Takashi Naito, Ken Takahashi, Motoyasu Terao, Toshimichi Shintani +5 more | 2005-01-18 |
| 6790502 | Optically functional element and production method and application therefor | Hiroki Yamamoto, Takashi Naito, Ken Takahashi, Motoyasu Terao, Toshimichi Shintani +5 more | 2004-09-14 |
| 6749955 | Information recording media and information recording drive | Nobuyuki Inaba, Hiroki Yamamoto, Takashi Naitou, Ken Takahashi, Eiji Koyama +3 more | 2004-06-15 |
| 6746749 | Magnetic recording disk | Nobuyuki Inaba, Hiroki Yamamoto, Ken Takahashi, Takashi Naitou, Motoyasu Terao +3 more | 2004-06-08 |
| 6730421 | Magnetic recording medium and its production method, and magnetic recorder | Nobuyuki Inaba, Teruaki Takeuchi, Kouichirou Wakabayashi | 2004-05-04 |
| 6699602 | Amorphous magnetic recording medium, process for producing the same and magnetic recording and reproduction apparatus | Mitsutoshi Honda, Hiroki Yamamoto, Takashi Naito, Tatsumi Hirano, Tetsuo Nakazawa +4 more | 2004-03-02 |
| 6700852 | Information recording medium with recording film with cobalt oxide crystalline particles, and information recording device including the same | Hiroki Yamamoto, Takashi Naito, Ken Takahashi, Sumio Hosaka, Motoyasu Terao +2 more | 2004-03-02 |
| 6572988 | Magnetic recording medium and magnetic recording apparatus | Nobuyuki Inaba, Kazuetsu Yoshida, Kazusuke Yamanaka, Masaaki Futamoto | 2003-06-03 |
| 6574060 | Magnetic storage apparatus | Tetsuya Kanbe, Ichiro Tamai, Yuzuru Hosoe, Kiwamu Tanahashi, Yoshio Takahashi +2 more | 2003-06-03 |
| 6534206 | Information recording media and information recording drive | Nobuyuki Inaba, Hiroki Yamamoto, Takashi Naitou, Ken Takahashi, Eiji Koyama +3 more | 2003-03-18 |
| 6472047 | Magnetic recording disk | Nobuyuki Inaba, Hiroki Yamamoto, Ken Takahashi, Takashi Naitou, Motoyasu Terao +3 more | 2002-10-29 |
| 6410133 | Magnetic recording disk, method of the magnetic recording disk and magnetic recording apparatus | Nobuyuki Inaba, Ken Takahashi, Takashi Naitou, Sumio Hosaka, Eiji Koyama +3 more | 2002-06-25 |
| 6221508 | Magnetic recording media | Tetsuya Kanbe, Ichiro Tamai, Yuzuru Hosoe, Kiwamu Tanahashi, Yoshio Takahashi +2 more | 2001-04-24 |
| 6033792 | Soft magnetic thin film, and magnetic head and magnetic recording device using the same | Shigekazu Otomo, Nagatugu Koiso, Noriyuki Kumasaka, Takeshi Miura | 2000-03-07 |
| 5962153 | Soft magnetic thin film, and magnetic head and magnetic recording apparatus using the film | Nagatugu Koiso | 1999-10-05 |
| 5914198 | Magneto-optical recording medium having dielectric layers with different indices of refraction | Harukazu Miyamoto, Toshio Niihara, Norio Ohta | 1999-06-22 |
| 5873955 | Soft magnetic thin film, and magnetic head and magnetic recording device using the same | Shigekazu Otomo, Nagatugu Koiso, Noriyuki Kumasaka, Takeshi Miura | 1999-02-23 |
| 5858548 | Soft magnetic thin film, and magnetic head and magnetic recording device using the same | Shigeharu Otomo, Nagatugu Koiso, Noriyuki Kumasaka, Takeshi Miura | 1999-01-12 |
| 5848045 | Method for recording and reading an optical disk | Tsuyoshi Toda, Hiroshi Ide, Hisataka Sugiyama, Atsushi Saito, Hiroyuki Tsuchinaga +6 more | 1998-12-08 |