HF

Hiroshi Fujii

HI Hitachi: 4 patents #260 of 3,950Top 7%
HC Hitachi Keiyo Engineering Co.: 1 patents #8 of 32Top 25%
Sumitomo Electric Industries: 1 patents #1,140 of 3,352Top 35%
Overall (2002): #9,570 of 266,432Top 4%
5
Patents 2002

Issued Patents 2002

Showing 1–5 of 5 patents

Patent #TitleCo-InventorsDate
6496397 Inverter device Keijiro Sakai, Toshiaki Okuyama, Kinya Nakatsu, Seiji Ishida, Junji Kato +1 more 2002-12-17
6486548 Semiconductor module and power converting apparatus using the module Kinya Nakatsu, Toshio Ogawa, Akihiro Tamba, Hiroyuki Tomita, Norinaga Suzuki +2 more 2002-11-26
6453872 Fuel injection valve and internal combustion engine mounting the same Ayumu Miyajima, Yoshio Okamoto, Yuzo Kadomukai, Shigenori Togashi, Kiyoshi Amo +3 more 2002-09-24
6395575 Method of manufacturing sensor and resistor element Shinji Umeda, Koji Nomura, Akihiko Ibata, Takeshi Masutani 2002-05-28
6396229 Method of estimating a rotor position of synchronous motor, method of controlling synchronous motor with no position sensor and a controller of synchronous motor Kiyoshi Sakamoto, Tsunehiro Endou, Naohiko Takahashi, Haruo Miura 2002-05-28