Issued Patents All Time
Showing 25 most recent of 51 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10991391 | Circuits and methods for modifying the write current waveform to improve track density in HDD | Yuhui Tang, Ying Liu, Mei Ki Yeung, Sui Yan Chan | 2021-04-27 |
| 8867168 | Magnetic head for perpendicular magnetic recording having a write shield | Norikazu Ota, Masahiro Saito, Taro Oike, Yosuke Antoku, Kenkichi Anagawa +4 more | 2014-10-21 |
| 8559133 | Perpendicular magnetic write head and magnetic write device | Kei Hirata, Tatsuhiro Nojima, Hisayoshi Watanabe, Michitaka Nishiyama | 2013-10-15 |
| 8427790 | Thin film magnetic head having similarly structured resistive film pattern and magnetic bias layer | Kei Hirata, Kazuki Sato, Yohei Koyanagi, Takayasu Kanaya | 2013-04-23 |
| 8300359 | Perpendicular magnetic recording head and magnetic recording device | Kei Hirata, Katsuki Kurihara, Kenkichi Anagawa | 2012-10-30 |
| 8240026 | Method of manufacturing a magneto-resistive device | Tetsuya Kuwashima, Norio Takahashi | 2012-08-14 |
| 8233237 | Perpendicular magnetic write head and magnetic recording device | Kenkichi Anagawa, Katsuki Kurihara, Kei Hirata, Minoru Ota | 2012-07-31 |
| 8144427 | Magnetic head, head assembly and magnetic recording/reproducing apparatus | Yosuke Antoku, Katsuki Kurihara, Taro Oike, Masashi Sano | 2012-03-27 |
| 8117736 | Method of lapping a magnetic head slider | Naoki Ohta | 2012-02-21 |
| 8085038 | Method for testing noise of thin-film magnetic head, and magnetic disk drive apparatus with noise testing function | Takumi Uesugi, Tetsuro Sasaki, Kei Hirata, Masaru Hirose, Chi Man Lee +1 more | 2011-12-27 |
| 8077436 | CPP-type magnetoresistance effect element having three magnetic layers | Kei Hirata, Satoshi Miura, Tomohito Mizuno | 2011-12-13 |
| 7950135 | Manufacturing method of magnetoresistive effect element | Takayasu Kanaya | 2011-05-31 |
| 7916430 | Thin-film magnetic head and manufacturing method thereof | Takayasu Kanaya | 2011-03-29 |
| 7898775 | Magnetoresistive device having bias magnetic field applying layer that includes two magnetic layers antiferromagnetically coupled to each other through intermediate layer | Kei Hirata, Shinji Hara, Takayasu Kanaya | 2011-03-01 |
| 7876537 | Magnetoresistive element incorporating conductive film disposed on peripheral surface of layered structure including spacer layer, free layer and pinned layer, the conductive film allowing conduction between the free layer and the pinned layer | Takumi Uesugi, Tetsuro Sasaki, Kei Hirata | 2011-01-25 |
| 7864489 | Thin-film magnetic head having an antistatic layer preventing a protective coat from being electrostatically charged | Kei Hirata, Takumi Uesugi, Tetsuro Sasaki | 2011-01-04 |
| 7843667 | Thin film magnetic head, head gimbal assembly, head arm assembly and magnetic disk device | Kei Hirata, Norikazu Ota, Yuichi Watabe, Tetsuro Sasaki, Tetsuya Roppongi +6 more | 2010-11-30 |
| 7832085 | Method of manufacturing magnetic head and method of manufacturing magnetic head substructure | Tetsuro Sasaki, Yuichi Watabe, Takamitsu Sakamoto | 2010-11-16 |
| 7784170 | Method for forming a resist pattern of magnetic device by etching with a gas cluster ion beam | Kazuki Sato | 2010-08-31 |
| 7784171 | Method of manufacturing a magneto-resistive device | Tetsuya Kuwashima, Norio Takahashi | 2010-08-31 |
| 7770284 | Manufacturing method of magnetoresistive effect element | Naoki Ohta | 2010-08-10 |
| 7768747 | Thin-film magnetic head and manufacturing method thereof | Takayasu Kanaya | 2010-08-03 |
| 7715155 | Thin-film magnetic head and manufacturing method thereof | Kazuki Sato, Kosuke Tanaka, Takayasu Kanaya, Naoki Ohta | 2010-05-11 |
| 7692901 | Magnetoresistive effect thin-film magnetic head with anti-ferromagnetic layer for magnetic domain control | — | 2010-04-06 |
| 7675716 | Composite thin-film magnetic head, magnetic head assembly and magnetic disk drive apparatus | Hiroshi Kiyono, Hiraku Hirabayashi, Eiichi Omata, Seiji Yari, Takamitsu Sakamoto | 2010-03-09 |