Issued Patents All Time
Showing 1–25 of 33 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8680855 | Apparatus for measuring magnetic field of microwave-assisted head | Isamu Sato, Hiroshi Ikeda, Mikio Matsuzaki, Tetsuya Roppongi, Tsutomu Aoyama | 2014-03-25 |
| 8559123 | Magnetic recording device, magnetic recording method and magnetic recording medium for shingle write scheme | Kei Hirata, Norikazu Ota | 2013-10-15 |
| 8358127 | Apparatus for measuring magnetic field of microwave-assisted head | Isamu Sato, Hiroshi Ikeda, Mikio Matsuzaki, Tetsuya Roppongi, Tsutomu Aoyama | 2013-01-22 |
| 8107352 | Microwave assisted magnetic head | Takuya Adachi, Isamu Sato, Hiroshi Ikeda | 2012-01-31 |
| 8085491 | Method of determining flying height of magnetic head | Yosuke Antoku, Masashi Sano, Kosuke Tanaka, Man Tse, Eric Cheuk Wing Leung +1 more | 2011-12-27 |
| 8027110 | Apparatus for measuring magnetic field of microwave-assisted head | Tomoyuki Sasaki, Takuya Adachi, Isamu Sato, Hiroshi Ikeda | 2011-09-27 |
| 7986481 | Magnetic reproducing method for suppressing low temperature noise | Susumu Nagatsuka, Yoshihiro Kudo, Eric Cheuk Wing Leung, Chris Leung, Leo Wai Kay Lau +1 more | 2011-07-26 |
| 7872471 | Testing method of head element and magnetic recording and reproducing apparatus capable of head evaluating | Soji Koide, Yoshiyuki Mizoguchi, Eric Cheuk Wing Leung, Chris Leung, Leo Wai Kay Lau +1 more | 2011-01-18 |
| 7770438 | Head slider, glide height checking apparatus, and glide height checking method | Hiroshi Kiyono, Nobuya Oyama, Katsuki Kurihara, Chung Keung Ho, Cheung Kwan Lau +1 more | 2010-08-10 |
| 7420776 | Thin-film magnetic head, head gimbal assembly, and hard disk drive | Norikazu Ota | 2008-09-02 |
| 7187521 | Thin-film magnetic head, head gimbal assembly, and hard disk drive | Norikazu Ota | 2007-03-06 |
| 7031110 | Thin film magnetic head, magnetic head device and magnetic recording/reproducing device | — | 2006-04-18 |
| 6965496 | Thin film magnetic head, magnetic head device and magnetic recording/reproducing device | — | 2005-11-15 |
| 6963474 | Thin film magnetic head, magnetic head and magnetic disk driving device | Makoto Yoshida, Taro Oike | 2005-11-08 |
| 6920020 | Thin-film merged magnetic head having a heat-generating layer | Norikazu Ota | 2005-07-19 |
| 6631054 | Thin film magnetic head, a magnetic head device, a magnetic disk drive device, and a method for manufacturing a thin film magnetic device | Tetsuo Miyazaki | 2003-10-07 |
| 6577475 | Thin-film magnetic head having reduced yoke length and method of manufacturing same | Yoshitaka Sasaki, Atsushi Iijima, Nobuya Oyama | 2003-06-10 |
| 6493182 | Magnetic head | Shigeki Tanemura, Akinori Koyama, Keiji Koga | 2002-12-10 |
| 6487041 | Thin film magnetic head with interlayers of multi-layer poles widening to a constant width portion at a receded distance | Kazumasa Fukuda, Yuzuru Iwai | 2002-11-26 |
| 6469868 | Thin film magnetic head having a nonmagnetic conductive layer and method of manufacturing same | Takahiro Yamamoto, Ken Takano | 2002-10-22 |
| 6381093 | Thin film magnetic head with magnetic films with increasing widths from a surface facing a recording medium | Makoto Yoshida, Koichi Terunuma, Yasufumi Uno | 2002-04-30 |
| 6366428 | Thin film magnetic head, a magnetic head device and a magnetic disk driving device | Mikio Ohmori, Youichi Suzuki, Izumi Nomura | 2002-04-02 |
| 6317291 | Thin-film magnetic head having improved data writing characteristics and a method of making the same | Yuzuru Iwai, Yoshihiro Kudo | 2001-11-13 |
| 6252748 | Thin film magnetic head with widening outer layer of multi-layer pole | Kazumasa Fukuda, Yuzuru Iwai | 2001-06-26 |
| 6198600 | Thin film magnetic head and manufacturing method thereof | Mitsuhiro Kitao, Hiroki Nakazawa, Keiichi Shibata, Monjiro Momoi | 2001-03-06 |