Issued Patents All Time
Showing 26–50 of 63 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8169741 | Perpendicular magnetic recording head with side shield and magnetic disk apparatus | Tomoko Taguchi, Yuka Aoyagi, Katsuhiko Koui | 2012-05-01 |
| 8164854 | Magnetic recording head with spin oscillation device and magnetic recording apparatus including the magnetic recording head | Masayuki Takagishi, Kenichiro Yamada, Hitoshi Iwasaki, Junichi Akiyama, Masahiro Takashita +1 more | 2012-04-24 |
| 8154825 | Magnetic recording head and magnetic recording device | Masahiro Takashita, Hitoshi Iwasaki, Kenichiro Yamada, Junichi Akiyama, Masayuki Takagishi +1 more | 2012-04-10 |
| 8139322 | Magnetic recording head with protruding spin torque oscillator | Kenichiro Yamada, Hitoshi Iwasaki, Junichi Akiyama, Masayuki Takagishi, Masahiro Takashita +1 more | 2012-03-20 |
| 8120875 | Magnetic recording apparatus utilizing a spin torque oscillator which interacts with an antenna layer in the magnetic recording medium | Masayuki Takagishi, Kenichiro Yamada, Hitoshi Iwasaki, Masahiro Takashita, Mariko Shimizu | 2012-02-21 |
| 8081397 | Magnetic head assembly and magnetic recording apparatus | Kenichiro Yamada, Katsuhiko Koui, Hitoshi Iwasaki, Masayuki Takagishi, Masahiro Takashita +2 more | 2011-12-20 |
| 7957098 | Magnetic recording head and magnetic recording apparatus | Kenichiro Yamada, Hitoshi Iwasaki, Junichi Akiyama, Masayuki Takagishi, Masahiro Takashita +3 more | 2011-06-07 |
| 7791829 | Apparatus for assisting write operation using high frequency magnetic field in disk drive | Akihiko Takeo, Junichi Akiyama, Kenichiro Yamada, Hitoshi Iwasaki, Masayuki Takagishi +2 more | 2010-09-07 |
| 7525772 | Magnetoresistive device, magnetic reproducing head, and magnetic information reproducing apparatus | Kohichi Tateyama, Koichi Kubo, Hitoshi Iwasaki, Hideaki Fukuzawa, Katsuhiko Koui | 2009-04-28 |
| 7514916 | CCP-CPP-GMR head assembly, magnetic recording/reproducing apparatus, and specification method of appropriate sense current direction of CCP-CPP-GMR head | Kohichi Tateyama, Masayuki Takagishi | 2009-04-07 |
| 7463455 | Magnetoresistive head having first and second shield layers between first and second lead layers | — | 2008-12-09 |
| 7405906 | Current-perpendicular-to-plane magnetoresistance effect device with double current control layers | Masayuki Takagishi, Katsuhiko Koui, Kohichi Tateyama | 2008-07-29 |
| 7304825 | CCP-CCP-GMR head assembly with good operating life, and magnetic recording/reproducing apparatus therewith | Kohichi Tateyama, Masayuki Takagishi | 2007-12-04 |
| 7277262 | CPP magnetoresistive head including a pair of shields and a sense current preamplifier | Masayuki Takagishi, Yoichiro Tanaka | 2007-10-02 |
| 7196877 | Magnetoresistive element, magnetoresistive head and magnetic reproducing apparatus | Masatoshi Yoshikawa, Masayuki Takagishi, Kohichi Tateyama, Hitoshi Iwasaki, Hideaki Fukuzawa | 2007-03-27 |
| 7126795 | Magnetic recording head, a magnetic reproducing head, a magnetic recording apparatus, and a magnetic reproducing apparatus | Kohichi Tateyama, Michiko Hara, Masatoshi Yoshikawa, Hiroaki Yoda | 2006-10-24 |
| 7100267 | Magnetic head, method for producing same, and magnetic recording and/or reproducing system | Hiroaki Yoda, Yuichi Osawa | 2006-09-05 |
| 6940700 | Magnetic head and magnetic reproducing apparatus | Kohichi Tateyama, Susumu Hashimoto, Masayuki Takagishi, Yuichi Ohsawa | 2005-09-06 |
| 6850393 | Magnetic head including a magneto resistive film connected to a yoke portion | Michiko Hara, Masatoshi Yoshikawa, Kohichi Tateyama, Hiroaki Yoda | 2005-02-01 |
| 6804089 | Yoke-type magnetic head and magnetic recording/reproducing device | Yuichi Osawa, Masatoshi Yoshikawa, Hiroaki Yoda | 2004-10-12 |
| 6741431 | Magnetic head and magnetic recording/reproduction device | Yuichi Osawa, Masatoshi Yoshikawa, Hiroaki Yoda | 2004-05-25 |
| 6724582 | Current perpendicular to plane type magnetoresistive device, magnetic head, and magnetic recording/reproducing apparatus | Masayuki Takagishi, Masatoshi Yoshikawa, Kohichi Tateyama | 2004-04-20 |
| 6665143 | Magnetic head, method for producing same, and magnetic recording and/or reproducing system | Hiroaki Yoda, Yuichi Osawa | 2003-12-16 |
| 6636390 | Magnetic head and magnetic recording and reproducing system | Masatoshi Yoshikawa, Takashi Koizumi, Akio Hori, Yuichi Osawa | 2003-10-21 |
| 6606225 | Yoke-type magnetic head and device having a granular structure in which a non-magnetic and electrical insulating material surrounds magnetic particles | Yuichi Osawa, Masatoshi Yoshikawa, Hiroaki Yoda | 2003-08-12 |