RF

Ryuji Fujii

S( Sae Magnetics (H.K.): 59 patents #8 of 585Top 2%
HT Headway Technologies: 21 patents #50 of 309Top 20%
Tdk: 14 patents #399 of 3,796Top 15%
Rohm Co.: 2 patents #1,039 of 2,292Top 50%
Overall (All Time): #30,865 of 4,157,543Top 1%
68
Patents All Time

Issued Patents All Time

Showing 26–50 of 68 patents

Patent #TitleCo-InventorsDate
8867170 Multilayer plasmon generator Yoshitaka Sasaki, Hiroyuki Ito, Shigeki Tanemura, Hironori Araki, Seiichiro Tomita 2014-10-21
8861138 Multilayer plasmon generator Yoshitaka Sasaki, Hiroyuki Ito, Shigeki Tanemura, Hironori Araki, Seiichiro Tomita 2014-10-14
8861318 Thermally assisted magnetic write head, and method of manufacturing the same Tai Boon Lee, Bing Ma, Wei-Liang Chen, Hong Ma, Yasutoshi Fujita +4 more 2014-10-14
8848494 Plasmon generator including two portions made of different metals Yoshitaka Sasaki, Hiroyuki Ito, Shigeki Tanemura, Hironori Araki, Seiichiro Tomita 2014-09-30
8830799 Near-field light generator and thermally-assisted magnetic recording head Yoshitaka Sasaki, Hiroyuki Ito, Shigeki Tanemura, Hironori Araki, Seiichiro Tomita 2014-09-09
8811130 Method of manufacturing thermally-assisted magnetic head Seiichi Takayama, Osamu Harakawa, Hideki Tanzawa, Tadatoshi Koba, Takashi Honda 2014-08-19
8811127 Magnetic head comprising recording part, reading part, heater for expansion of the recording part, and heater for expansion of the reading part Kei Hirata, Koji Shimazawa, Yasutoshi Fujita 2014-08-19
8801945 Write element, thermally assisted magnetic head slider, head gimbal assembly, hard disk drive with the same, and manufacturing method thereof Natsuo Nishijima, Hong Ma, Jian Hui Huang, Huan Chao Liang, Zhong Xian Wei 2014-08-12
8760809 Thermally-assisted magnetic recording head having a plasmon generator Yoshitaka Sasaki, Hiroyuki Ito, Shigeki Tanemura, Hironori Araki, Seiichiro Tomita 2014-06-24
8743665 Light source chip and a thermally assisted head with the same, and manufacturing methods thereof Tai Boon Lee, Hideki Tanzawa, Yasuhiro Konakawa 2014-06-03
8711663 Plasmon generator includes three metal layers for thermally-assisted magnetic recording Yoshitaka Sasaki, Hiroyuki Ito, Shigeki Tanemura, Hironori Araki, Seiichiro Tomita 2014-04-29
8638645 Thermally assisted magnetic head slider having plasmon unit formed with a recess Natsuo Nishijima, Hong Ma, Jian Hui Huang, Huan Chao Liang, Zhong Xian Wei 2014-01-28
8619518 Thermally-assisted magnetic recording head having expanded near-field light generating layer and method of manufacture Yoshitaka Sasaki, Hiroyuki Ito, Hironori Araki, Shigeki Tanemura, Kazuki Sato 2013-12-31
8614863 Row bar with smart sensor for forming sliders and method of manufacturing slider Waikeung Lau, Guowei Li, Longping Wang, Xiangbin Xiao, Quanbao Wang 2013-12-24
8588040 Thermally assisted magnetic head slider, head gimbal assembly, and hard disk drive with the same, and manufacturing method thereof Yasutoshi Fujita, Hideki Tanzawa, Natsuo Nishijima, Tai Boon Lee, Jian Hui Huang +4 more 2013-11-19
8537643 Light source chip and a thermally assisted head with the same, and manufacturing methods thereof Tai Boon Lee, Hideki Tanzawa, Yasuhiro Konakawa 2013-09-17
8509036 Method of burn-in testing for thermally assisted head Koji Shimazawa, Kosuke Tanaka, Takashi Honda, Yoshiteru Nagai, Tsuguki Noma +1 more 2013-08-13
8509038 Near-field light generator and thermally-assisted magnetic recording head Yoshitaka Sasaki, Hiroyuki Ito, Shigeki Tanemura, Kazuki Sato, Hironori Araki 2013-08-13
8503493 System and method for cooling a semiconductor light source bar during burn-in testing Quan Wang, Chun Fei Cheung 2013-08-06
8498183 Thermally-assisted magnetic recording head having a waveguide and a return path section Yoshitaka Sasaki, Hiroyuki Ito, Kazuki Sato, Hironori Araki, Shigeki Tanemura 2013-07-30
8495812 Method of manufacturing magnetic head slider Jian Hui Huang, Anthony Reymund Melad Binarao, Shao Hui Yang, Tatsuya Shimizu 2013-07-30
8493821 Thermally-assisted magnetic recording head including a shield Yoshitaka Sasaki, Hiroyuki Ito, Hironori Araki, Shigeki Tanemura, Kazumasa Yasuda 2013-07-23
8456968 Thermally-assisted magnetic recording head having dual heat sink layers Yoshitaka Sasaki, Hiroyuki Ito, Hironori Araki, Shigeki Tanemura, Kazumasa Yasuda 2013-06-04
8384405 Method for performing burn-in test Koji Shimazawa, Ryo Hosoi, Yasuhiro Ito, Masaaki Kaneko, Takashi Honda +1 more 2013-02-26
8254214 Light source unit for thermally-assisted magnetic recording including dual electrode layers connected to a unit electrode Koji Shimazawa, Yasuhiro Ito, Osamu Shindo 2012-08-28