Issued Patents All Time
Showing 1–16 of 16 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8064163 | Perpendicular magnetic write head having a thin film coil generating a magnetic flux and method of manufacturing perpendicular magnetic write head, and magnetic write device | Norikazu Ota, Tetsuya Roppongi | 2011-11-22 |
| 7974046 | Thin-film magnetic head with heating portion and protrusion adjustment portion, head gimbal assembly equipped head, magnetic recording/reproducing apparatus equipped HGA, and manufacturing method of head | Norikazu Ota, Tetsuya Roppongi, Hiraku Hirabayashi | 2011-07-05 |
| 7920357 | Magnetic recording method using ferromagnetic resonance and thin-film magnetic head for using the method | Isamu Sato, Tetsuya Roppongi, Norikazu Ota, Hiroshi Ikeda, Mikio Matsuzaki | 2011-04-05 |
| 7843667 | Thin film magnetic head, head gimbal assembly, head arm assembly and magnetic disk device | Kei Hirata, Norikazu Ota, Tetsuro Sasaki, Takeo Kagami, Tetsuya Roppongi +6 more | 2010-11-30 |
| 7832085 | Method of manufacturing magnetic head and method of manufacturing magnetic head substructure | Takeo Kagami, Tetsuro Sasaki, Takamitsu Sakamoto | 2010-11-16 |
| 7518826 | Perpendicular magnetic recording head and magnetic recording apparatus | Naoto Matono | 2009-04-14 |
| 7457080 | Perpendicular magnetic recording head, method of manufacturing the same, and magnetic recording apparatus | Susumu Aoki, Reiichi Kurumisawa, Yasuyuki Notsuke, Norikazu Ota | 2008-11-25 |
| 7453668 | Thin film magnetic head, method of manufacturing the same, and magnetic recording apparatus | Susumu Aoki, Reiichi Kurumisawa, Norikazu Ota, Yasuyuki Notsuke | 2008-11-18 |
| 7433152 | Perpendicular magnetic recording head, method of manufacturing the same, and magnetic recording apparatus | Susumu Aoki, Reiichi Kurumisawa, Yasuyuki Notsuke, Norikazu Ota | 2008-10-07 |
| 7379268 | Thin-film magnetic head including non-magnetic layer for maintaining flatness of the top surface of pole portion layer | Yoshikazu Sato, Tetsuya Roppongi | 2008-05-27 |
| 7245454 | Magnetic head for vertical magnetic recording including main pole layer having varying width and thickness, head gimbal assembly, and hard disk drive | Susumu Aoki, Yasuyuki Notsuke, Norikazu Ota, Tetsuya Roppongi | 2007-07-17 |
| 7219414 | Method of manufacturing magnetic head for perpendicular magnetic recording | Susumu Aoki, Yasuyuki Notsuke, Tetsuya Roppongi | 2007-05-22 |
| 7154707 | Thin film magnetic head and magnetic recording apparatus | Norikazu Ota, Yasuyuki Notsuke, Susumu Aoki, Tetsuya Roppongi, Naoto Matono | 2006-12-26 |
| 7061719 | Thin film magnetic head and method of manufacturing the same | Naoto Matono, Norikazu Ota, Susumu Aoki, Yasuyuki Notsuke | 2006-06-13 |
| 6922316 | Thin-film magnetic head and method of manufacturing same | Yoshikazu Sato, Tetsuya Roppongi | 2005-07-26 |
| 6850390 | Thin-film magnetic head and method of manufacturing same | Yoshikazu Sato, Tetsuya Roppongi | 2005-02-01 |