HF

Hirotsugu Fukuoka

HI Hitachi: 14 patents #2,889 of 28,497Top 15%
Sumitomo Electric Industries: 12 patents #2,165 of 21,551Top 15%
HG HGST: 2 patents #144 of 483Top 30%
Overall (All Time): #139,966 of 4,157,543Top 4%
28
Patents All Time

Issued Patents All Time

Showing 26–28 of 28 patents

Patent #TitleCo-InventorsDate
5325244 Magnetic recording data storage system Hisashi Takano, Kyo Akagi, Mikio Suzuki, Yoshibumi Matsuda, Takeshi Nakao +8 more 1994-06-28
5109311 Magnetic disk device and method of recording/retrieving information Masanobu Hanazono, Shinji Narishige, Yutaka Sugita, Hiroshi Fukui, Hajime Aoi +4 more 1992-04-28
4861398 Method for making a thin film magnetic head Kanji Kawakami, Makoto Aihara, Mitsuo Suda, Kouji Takeshita, Yukihiro Isono 1989-08-29