TR

Tetsuya Roppongi

Tdk: 65 patents #28 of 3,796Top 1%
HT Headway Technologies: 13 patents #68 of 309Top 25%
S( Sae Magnetics (H.K.): 4 patents #114 of 585Top 20%
KT Kabushiki Kaisha Toshiba: 2 patents #9,982 of 21,451Top 50%
📍 Tokyo, CA: #109 of 583 inventorsTop 20%
Overall (All Time): #23,790 of 4,157,543Top 1%
78
Patents All Time

Issued Patents All Time

Showing 26–50 of 78 patents

Patent #TitleCo-InventorsDate
8817581 Thermally-assisted magnetic recording head using near-field light Takeshi Tsutsumi, Ryo Hosoi, Kosuke Tanaka 2014-08-26
8680855 Apparatus for measuring magnetic field of microwave-assisted head Isamu Sato, Hiroshi Ikeda, Mikio Matsuzaki, Noboru Yamanaka, Tsutomu Aoyama 2014-03-25
8605387 Thermally-assisted magnetic recording head including a magnetic pole and a heating element Kei Hirata, Kosuke Tanaka 2013-12-10
8570843 Thermally assisted magnetic head, magnetic head device and magnetic recording/reproducing apparatus including a recording element and a near-field light generating element Kei Hirata, Kosuke Tanaka, Tsutomu Chou, Susumu Aoki, Makoto Isogai 2013-10-29
8503270 Thermally-assisted magnetic recording head including a plasmon generator and a magnetic pole Keita Kawamori, Kei Hirata 2013-08-06
8462594 Thermally-assisted magnetic recording head capable of preventing propagated light being absorbed by magnetic pole Susumu Aoki, Kosuke Tanaka, Kei Hirata, Takeshi Tsutsumi 2013-06-11
8437230 Heat-assisted magnetic write head, head gimbals assembly, head arm assembly, and magnetic disk device Susumu Aoki, Kosuke Tanaka, Takeshi Tsutsumi, Daisuke Miyauchi 2013-05-07
8400885 Thermally-assisted magnetic recording head, head gimbal assembly and magnetic recording device Daisuke Miyauchi, Kosuke Tanaka, Tsutomu Chou, Eiji Komura 2013-03-19
8385160 Magnetic recording element used for thermally-assisted magnetic recording Shinji Hara, Tsutomu Chou, Daisuke Miyauchi, Kosuke Tanaka 2013-02-26
8374062 Heat assist magnetic write head, head gimbals assembly, head arm assembly, and magnetic disk device Kosuke Tanaka, Daisuke Miyauchi, Katsuki Kurihara 2013-02-12
8358127 Apparatus for measuring magnetic field of microwave-assisted head Isamu Sato, Hiroshi Ikeda, Mikio Matsuzaki, Noboru Yamanaka, Tsutomu Aoyama 2013-01-22
8325567 Thermally-assisted magnetic recording head comprising near-field light generator Daisuke Miyauchi, Tsutomu Chou, Kosuke Tanaka, Susumu Aoki, Katsuki Kurihara 2012-12-04
8325570 Thermally-assisted magnetic recording head including a protruding member Kosuke Tanaka, Kei Hirata, Susumu Aoki, Takahiko Izawa, Makoto Isogai +2 more 2012-12-04
8264916 Microwave assisted magnetic head and magnetic disk device Tsutomu Aoyama, Yoshikazu Soeno, Kiyoshi Noguchi, Isamu Sato 2012-09-11
8208349 Thermally-assisted magnetic recording head having a gap between propagation edge and magnetic pole Kosuke Tanaka, Daisuke Miyauchi, Susumu Aoki, Tsutomu Chou, Takahiko Izawa +1 more 2012-06-26
8164986 Thermally-assisted magnetic recording head and thermally-assisted magnetic recording method Susumu Aoki, Daisuke Miyauchi, Seiichi Takayama, Koji Shimazawa 2012-04-24
8144437 Magnetoresistive element and thin film magnetic head Daisuke Miyauchi, Keita Kawamori, Takahiko Machita 2012-03-27
8125857 Heat-assisted magnetic recording head including plasmon generator Kosuke Tanaka, Daisuke Miyauchi, Susumu Aoki, Tsutomu Chou, Shinji Hara +1 more 2012-02-28
8094399 Magnetic recording apparatus provided with microwave-assisted head Takuya Adachi, Isamu Sato, Hiroshi Ikeda, Mikio Matsuzaki 2012-01-10
8077558 Thermally-assisted magnetic recording head including plasmon generator Takeshi Tsutsumi, Daisuke Miyauchi, Kosuke Tanaka, Susumu Aoki, Takahiko Izawa +1 more 2011-12-13
8077559 Thermally-assisted magnetic recording head including plasmon generator Daisuke Miyauchi, Kosuke Tanaka, Susumu Aoki, Katsuki Kurihara 2011-12-13
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, Yuichi Watabe 2011-11-22
7983009 Magnetic recording/reproducing system, and thin-film magnetic head having shield layers of specified widths Norikazu Ota 2011-07-19
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, Hiraku Hirabayashi, Yuichi Watabe 2011-07-05
7920357 Magnetic recording method using ferromagnetic resonance and thin-film magnetic head for using the method Isamu Sato, Yuichi Watabe, Norikazu Ota, Hiroshi Ikeda, Mikio Matsuzaki 2011-04-05