Issued Patents All Time
Showing 1–25 of 63 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10985210 | Nonvolatile storage device | Masahiko Nakayama, Toshihiko Nagase, Hironobu Furuhashi, Kazumasa Sunouchi | 2021-04-20 |
| 9870789 | Magnetic disk device and high-frequency assist recording method | — | 2018-01-16 |
| 9870786 | Method of manufacturing magnetic recording head | Akihiko Takeo | 2018-01-16 |
| 9747932 | Magnetic recording head and disk device comprising the same | Tomoko Taguchi | 2017-08-29 |
| 9653103 | Magnetic head including spin valve element with first to third terminals in which first current flows between the second terminal and the third terminal, and second current flows to the first terminal and is lower than the first current, magnetic recording and reproducing apparatus, and method of manufacturing magnetic head | Yuuzo Kamiguchi, Hitoshi Iwasaki, Masayuki Takagishi, Kenichiro Yamada, Satoshi Shirotori +1 more | 2017-05-16 |
| 9222994 | Perpendicular spin torque oscillator FMR frequency measurement method | Yuchen Zhou, Kunliang Zhang, Min Li, Kenichi Takano, Joe Smyth +4 more | 2015-12-29 |
| 9171558 | Magnetic head with multiple reproducing elements each having magnetically coupled free layers, magnetic recording reproducing apparatus and magnetic head manufacturing method | Akihiko Takeo, Kazuto Kashiwagi, Kenichiro Yamada, Katsuhiko Koui | 2015-10-27 |
| 9142228 | Magnetic recording head having narrow write gap, and disk device provided with the same | Norihito Fujita, Satoshi Shirotori, Shinobu Sugimura | 2015-09-22 |
| 9047887 | Magnetic recording head and disk apparatus with the same | — | 2015-06-02 |
| 9019660 | Magnetic recording head with spin torque oscillator having inverted current supply circuit | — | 2015-04-28 |
| 8953273 | Magnetic disk apparatus | — | 2015-02-10 |
| 8705204 | Recording head with high-frequency oscillator and bi-layer main pole height/width arrangement | Tomoko Taguchi, Kenichiro Yamada, Katsuhiko Koui, Norihito Fujita | 2014-04-22 |
| 8687321 | Magnetic head assembly | Kenichiro Yamada, Hitoshi Iwasaki, Masayuki Takagishi | 2014-04-01 |
| 8654480 | Magnetic head with spin torque oscillator and magnetic recording head | Mariko Shimizu, Hitoshi Iwasaki, Kenichiro Yamada, Junichi Akiyama, Masayuki Takagishi +1 more | 2014-02-18 |
| 8553359 | Magnetic recording head and magnetic recording/reproducing apparatus using the same | Kenichiro Yamada, Katsuhiko Koui, Mariko Kitazaki, Masayuki Takagishi, Masahiro Takashita +2 more | 2013-10-08 |
| 8547662 | Magnetic recording head and magnetic recording apparatus | Kenichiro Yamada, Hitoshi Iwasaki, Junichi Akiyama, Masayuki Takagishi, Masahiro Takashita +3 more | 2013-10-01 |
| 8472140 | Spin oscillator or magnetic recorder including multiple injection layers in the magnetic recording head | Kenichiro Yamada, Hitoshi Iwasaki, Masayuki Takagishi, Masahiro Takashita, Katsuhiko Koui +2 more | 2013-06-25 |
| 8446691 | Magnetic recording device | Masayuki Takagishi, Hitoshi Iwasaki, Kenichiro Yamada, Katsuhiko Koui, Masahiro Takashita +2 more | 2013-05-21 |
| 8400734 | Magnetic recording head and magnetic recording apparatus | Kenichiro Yamada, Hitoshi Iwasaki, Junichi Akiyama, Masayuki Takagishi, Masahiro Takashita +3 more | 2013-03-19 |
| 8320079 | Magnetic head assembly and magnetic recording/reproducing apparatus | Hitoshi Iwasaki, Kenichiro Yamada, Masayuki Takagishi, Masahiro Takashita, Mariko Shimizu +2 more | 2012-11-27 |
| 8315015 | Perpendicular magnetic recording head provided with side shield and magnetic disk apparatus using the same | Tomoko Taguchi, Yuka Aoyagi, Katsuhiko Koui | 2012-11-20 |
| 8295009 | Magnetic recording head and magnetic recording apparatus | Kenichiro Yamada, Hitoshi Iwasaki, Junichi Akiyama, Masayuki Takagishi, Masahiro Takashita +3 more | 2012-10-23 |
| 8270112 | Magnetic head with spin oscillation device(s) and magnetic recording device | Kenichiro Yamada, Masayuki Takagishi, Masahiro Takashita, Mariko Shimizu, Junichi Akiyama +1 more | 2012-09-18 |
| 8238058 | Magnetic recording head, magnetic head assembly, and magnetic recording apparatus | Mariko Shimizu, Hitoshi Iwasaki, Kenichiro Yamada, Katsuhiko Koui, Masayuki Takagishi +2 more | 2012-08-07 |
| 8238060 | Magnetic recording head and magnetic recording apparatus | Kenichiro Yamada, Hitoshi Iwasaki, Junichi Akiyama, Masayuki Takagishi, Masahiro Takashita +3 more | 2012-08-07 |