HF

Hideo Fujiwara

HM Hitachi Maxell: 29 patents #9 of 1,211Top 1%
HI Hitachi: 21 patents #1,645 of 28,497Top 6%
UA University Of Alabama: 4 patents #23 of 324Top 8%
Ricoh Company: 4 patents #4,167 of 9,818Top 45%
SM Suzuki Motor: 4 patents #123 of 1,209Top 15%
NI Nidec: 3 patents #315 of 976Top 35%
Honda Motor Co.: 3 patents #6,619 of 21,052Top 35%
SC Semiconductor Technology Academic Research Center: 2 patents #50 of 254Top 20%
CC Clarion Co.: 2 patents #253 of 721Top 40%
TP Tigers Polymer: 1 patents #33 of 76Top 45%
TC Toyo Tire & Rubber Co.: 1 patents #248 of 499Top 50%
Fujitsu Limited: 1 patents #14,843 of 24,456Top 65%
VJ Victor Company Of Japan: 1 patents #818 of 1,489Top 55%
RJ Research Development Corporation Of Japan: 1 patents #170 of 402Top 45%
Sumitomo Electric Industries: 1 patents #13,249 of 21,551Top 65%
📍 Yokohama, AL: #1 of 2 inventorsTop 50%
Overall (All Time): #29,354 of 4,157,543Top 1%
70
Patents All Time

Issued Patents All Time

Showing 51–70 of 70 patents

Patent #TitleCo-InventorsDate
4814920 Magnetic head with a slider Minoru Yamano, Masashi Hayashi, Nobuhiko Naganawa 1989-03-21
4803578 Assembly for stably mounting magnetic head on carriage Akito Sakemoto, Osamu Inagoya 1989-02-07
4774616 Magnetic head having an integrated recording and playback head and an erasure head Noriyuki Kumasaka, Shigekazu Otomo, Takeo Yamashita, Noritoshi Saito, Mitsuhiro Kudo 1988-09-27
4745507 Composite type magnetic head with non-magnetic member in coil mounting portion Shigekazu Otomo, Noriyuki Kumasaka, Takeo Yamashita, Juichi Morikawa, Osamu Inagoya +2 more 1988-05-17
4701819 Magnetic head to effect high density magnetic recording Osamu Inagoya, Takeshi Tottori, Minoru Yamano, Noriyuki Kumasaka, Shigekazu Otomo +5 more 1987-10-20
4656547 Composite type magnetic head for recording and reproducing high frequency signals Noriyuki Kumasaka, Shigekazu Otomo, Takeo Yamashita, Shinji Takayama, Noritoshi Saito +1 more 1987-04-07
4651248 Thin-film magnetic head Kazuo Shiiki, Yoshihiro Shiroishi, Isamu Yuito, Kiminari Shinagawa 1987-03-17
4636897 Perpendicular magnetic recording and reproducing thin film head Hitoshi Nakamura, Kasuo Shiiki, Isamu Yuito, Yoshihiro Shiroishi, Kiminari Shinagawa +1 more 1987-01-13
4631612 Magnetic recording and reproducing system Kazuo Shiiki, Yoshihiro Shiroishi, Isamu Yuito, Kiminari Shinagawa, Yasutaro Uesaka +1 more 1986-12-23
4621030 Perpendicular magnetic recording medium and manufacturing method thereof Yasutaro Uesaka, Sadao Hishiyama, Kazuo Shiiki 1986-11-04
4611030 Composition for pneumatic tires Masanori Kan 1986-09-09
4610935 Magnetic film structure Noriyuki Kumasaka, Noritoshi Saito, Shigekazu Otomo, Takeo Yamashita, Mitsuhiro Kudo 1986-09-09
4571652 Magnetic recording and reproducing apparatus Shigekazu Otomo, Kiminari Shinagawa, Noriyuki Kumasaka, Takeo Yamashita, Mitsuhiro Kudo +1 more 1986-02-18
4571650 Magneto-optic information storage system utilizing a self-coupled laser Masahiro Ojima, Toshio Niihara 1986-02-18
4559572 Magnetic head and method of fabricating same Noriyuki Kumasaka, Shigekazu Otomo, Takeo Yamashita, Shinji Takayama, Noritoshi Saito +2 more 1985-12-17
4544591 Perpendicular magnetic recording medium Yasutaro Uesaka, Sadao Hishiyama, Masahiro Kitada, Noboru Shimizu, Hideo Tanabe 1985-10-01
4450494 Magnetic head Mitsuhiro Kudo, Teizo Tamura, Nobuyuki Sugishita, Yoshihiro Shiroishi, Takeshi Kimura +2 more 1984-05-22
4439794 Magnetic head Yoshihiro Shiroishi, Takeshi Kimura, Noriyuki Kumasaka, Nobuo Kobayashi, Takeo Yamashita +4 more 1984-03-27
4411716 Amorphous alloys for magnetic head core and video magnetic head using same Kazuo Shiiki, Shigekazu Otomo, Mitsuhiro Kudo, Takeshi Kimura, Noriyuki Kumasaka 1983-10-25
4316228 Magnetic head Mitsuhiro Kudo, Teizou Tamura, Nobuyuki Sugishita, Yoshihiro Shiroishi, Takeshi Kimura +2 more 1982-02-16