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%
Overall (All Time): #23,790 of 4,157,543Top 1%
78
Patents All Time

Issued Patents All Time

Showing 25 most recent of 78 patents

Patent #TitleCo-InventorsDate
12094497 Optimizing a current distribution in write heads for efficient energy-assisted magnetic recording Shehrin Sayed, Wenyu Chen, Yue Liu, Kowang Liu, Haowen REN +3 more 2024-09-17
12068008 Magnetic flux guiding device with spin torque oscillator (STO) film having negative spin polarization layers in assisted writing application Wenyu Chen, Shohei Kawasaki 2024-08-20
11568891 Magnetic flux guiding device with spin torque oscillator (STO) film having negative spin polarization layers in assisted writing application Wenyu Chen, Shohei Kawasaki 2023-01-31
11514931 Magnetic head including main pole having top surface including first inclined portion, second inclined portion, and third inclined portion, and spin torque oscillator Hironori Araki, Yoshitaka Sasaki, Tetsuhito Shinohara, Shigeki Tanemura, Kazuki Sato +2 more 2022-11-29
11289117 Magnetic head including spin torque oscillator Yoshitaka Sasaki, Hiroyuki Ito, Kazuki Sato, Shigeki Tanemura, Hironori Araki +7 more 2022-03-29
11211082 Magnetic head including spin torque oscillator Yoshitaka Sasaki, Hiroyuki Ito, Tetsuhito Shinohara, Shigeki Tanemura, Kazuki Sato +2 more 2021-12-28
10937450 Magnetic flux guiding device with spin torque oscillator (STO) film having one or more negative spin polarization layers in assisted writing application Shohei Kawasaki, Wenyu Chen 2021-03-02
10839829 Magnetic head with a main pole including first and second layers and manufacturing method for the same Yoshitaka Sasaki, Hiroyuki Ito, Kazuki Sato, Shigeki Tanemura, Kei Hirata +2 more 2020-11-17
10803888 Magnetic head including spin torque oscillator and manufacturing method for the same Yoshitaka Sasaki, Hiroyuki Ito, Kazuki Sato, Shigeki Tanemura, Hironori Araki +2 more 2020-10-13
10748559 Magnetic head including spin torque oscillator and manufacturing method for the same Hironori Araki, Yoshitaka Sasaki, Hiroyuki Ito, Yoji Nomura, Shigeki Tanemura +2 more 2020-08-18
10559412 Magnetoresistance effect device Akimasa Kaizu, Naomichi Degawa 2020-02-11
10522174 Magnetic flux guiding device with antiferromagnetically coupled (AFC) spin polarizer in assisted writing application Wenyu Chen, Shohei Kawasaki, Yan Wu 2019-12-31
10490216 Magnetic flux guiding device with antiferromagnetically coupled (AFC) oscillator in assisted writing application Wenyu Chen, Shohei Kawasaki, Yan Wu 2019-11-26
10424326 Magnetic flux guiding device with antiferromagnetically coupled (AFC) spin polarizer in assisted writing application Wenyu Chen, Shohei Kawasaki, Yan Wu 2019-09-24
10121497 Magnetic recording head with spin torque oscillator layers satisfying width, thickness and angle relationship formulas Hirokazu Takahashi, Zhengyao Tang, Shinji Hara 2018-11-06
10109302 Magnetic recording head with spin torque oscillator, head gimbal assembly and magnetic recording apparatus Tetsuhito Shinohara, Naomichi Degawa 2018-10-23
10032470 Magnetic recording head with spin torque oscillator, head gimbal assembly and magnetic recording apparatus Naomichi Degawa, Tetsuhito Shinohara, Shinji Hara 2018-07-24
9934797 Multilayer element including base multilayer body, magnetic sensor and microwave assisted magnetic head Hirokazu Takahashi, Yoshikazu Soeno 2018-04-03
9824701 Microwave assisted magnetic recording head with spin torque oscillator corner angle relationship, head gimbal assembly, and magnetic recording device Zhenyao Tang, Yoshikazu Soeno, Hironobu Matsuzawa, Hirokazu Takahashi 2017-11-21
9741373 Microwave assisted magnetic head, head gimbal assembly, and magnetic recording device Tetsuhito Shinohara, Yoshikazu Soeno 2017-08-22
9230586 Method of setting flying height and flying height setting device Norikazu Ota, Osamu NAKADA, Mitsuo Otsuki, Shinji Hara, Daisuke Miyauchi +1 more 2016-01-05
9190084 Thermal assisted magnetic recording head with protrusion on leading side of plasmon generator Kenta Hara, Kosuke Tanaka, Ryuji Fujii, Yasutoshi Fujita 2015-11-17
9165582 Thermal assisted magnetic recording head utilizing uncoupled light Shinji Hara, Eiji Komura, Norikazu Ota, Daisuke Miyauchi, Koji Shimazawa 2015-10-20
9153267 Thermally-assisted magnetic recording head, head gimbals assembly, head arm assembly and magnetic recording unit Eiji Komura, Shinji Hara, Norikazu Ota, Kosuke Tanaka 2015-10-06
8964514 Plasmon generator and thermally-assisted magnetic recording head having the same Kei Hirata, Ryo Hosoi, Keita Kawamori 2015-02-24