Issued Patents All Time
Showing 1–25 of 70 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7399540 | Perpendicular magnetic recording media, magnetic recording apparatus | Kazuetsu Yoshida, Yukio Honda, Yoshiyuki Hirayama, Atsushi Kikugawa | 2008-07-15 |
| 7351445 | Magnetic recording media and method of forming them | Chiseki Haginoya, Kaori Suzuki, Hisashi Kimura, Hideo Matsuyama | 2008-04-01 |
| 7348078 | Perpendicular magnetic recording medium and magnetic storage apparatus | Yoshiaki Kawato, Kazuhiro Nakamoto | 2008-03-25 |
| 7159303 | Method for manufacturing magnetic head device | Ryoichi Nakatani, Masahiro Kitada, Naoki Koyama, Isamu Yuito, Hisashi Takano +14 more | 2007-01-09 |
| 7157162 | Magnetic recording medium and magnetic recording and reproducing apparatus | Kazusuke Yamanaka, Tomoo Yamamoto, Yuzuru Hosoe, Nobuyuki Inaba, Yasutaro Uesaka +3 more | 2007-01-02 |
| 7147941 | Perpendicular magnetic recording media, magnetic recording apparatus | Kazuetsu Yoshida, Yukio Honda, Yoshiyuki Hirayama, Atsushi Kikugawa | 2006-12-12 |
| 7138195 | Perpendicular magnetic recording media and magnetic storage | Kiwamu Tanahashi, Atsushi Kikugawa, Yukio Honda, Akira Ishikawa | 2006-11-21 |
| 7097924 | Magnetic recording media and method of forming them | Chiseki Haginoya, Kaori Suzuki, Hisashi Kimura, Hideo Matsuyama | 2006-08-29 |
| 7054120 | Magnetic apparatus with perpendicular recording medium and head having multilayered reproducing element using tunneling effect | Ryoichi Nakatani, Masahiro Kitada, Naoki Koyama, Isamu Yuito, Hisashi Takano +14 more | 2006-05-30 |
| 7026810 | Method for testing or recording servo signal on perpendicular magnetic recording media | Atsushi Kikugawa, Kiwamu Tanahashi, Yukio Honda, Yoshiyuki Hirayama | 2006-04-11 |
| 6926974 | Perpendicular magnetic recording medium and magnetic storage apparatus | Yoshiaki Kawato, Kazuhiro Nakamoto | 2005-08-09 |
| 6894488 | Method for testing or recording servo signal on perpendicular magnetic recording media | Atsushi Kikugawa, Kiwamu Tanahashi, Yukio Honda, Yoshiyuki Hirayama | 2005-05-17 |
| 6852398 | Perpendicular-magnetic recording media and magnetic recording apparatus | Kazuetsu Yoshida, Yoshiyuki Hirayama | 2005-02-08 |
| 6846577 | Magnetic recording medium possessing a fluctuation field of not less than 30 Oe | Kazusuke Yamanaka, Tomoo Yamamoto, Yuzuru Hosoe, Nobuyuki Inaba, Yasutaro Uesaka +3 more | 2005-01-25 |
| 6770389 | Perpendicular magnetic recording medium and magnetic recording apparatus | Yoshiyuki Hirayama, Yukio Honda, Atsushi Kikukawa | 2004-08-03 |
| 6759148 | Perpendicular magnetic recording media and magnetic storage apparatus using the same | Kiwamu Tanahashi, Atsushi Kikugawa, Yukio Honda, Akira Ishikawa | 2004-07-06 |
| 6716516 | Magnetic recording medium and magnetic recording apparatus using the same | Nobuyuki Inaba, Yoshiyuki Hirayama, Yukio Honda, Kazuetsu Yoshida, Kenya Ito | 2004-04-06 |
| 6686070 | Perpendicular magnetic recording media, magnetic recording apparatus | Kazuetsu Yoshida, Yukio Honda, Yoshiyuki Hirayama, Atsushi Kikugawa | 2004-02-03 |
| 6687099 | Magnetic head with conductors formed on endlayers of a multilayer film having magnetic layer coercive force difference | Ryoichi Nakatani, Masahiro Kitada, Naoki Koyama, Isamu Yuito, Hisashi Takano +14 more | 2004-02-03 |
| 6641901 | Perpendicular-magnetic recording media and magnetic recording apparatus | Kazuetsu Yoshida, Yoshiyuki Hirayama | 2003-11-04 |
| 6613428 | Magnetic recording medium and magnetic recording and reproducing apparatus wherein the magnetic layer has a fluctuation of field; A or Hf of not less than 30 Oersteds | Kazusuke Yamanaka, Tomoo Yamamoto, Yuzuru Hosoe, Nobuyuki Inaba, Yasutaro Uesaka +3 more | 2003-09-02 |
| 6607849 | Magnetic recording medium and magnetic recording apparatus using the same | Nobuyuki Inaba, Yoshiyuki Hirayama, Yukio Honda, Kazuetsu Yoshida, Kenya Ito | 2003-08-19 |
| 6592976 | Magnetic recording medium and magnetic recording apparatus using the same | Nobuyuki Inaba, Yoshiyuki Hirayama, Yukio Honda, Kazuetsu Yoshida, Kenya Ito | 2003-07-15 |
| 6572988 | Magnetic recording medium and magnetic recording apparatus | Nobuyuki Inaba, Kazuetsu Yoshida, Kazusuke Yamanaka, Fumiyoshi Kirino | 2003-06-03 |
| 6562453 | Perpendicular magnetic recording medium and magnetic recording apparatus | Yoshiyuki Hirayama, Yukio Honda, Atsushi Kikukawa | 2003-05-13 |