NT

Naohiko Takahashi

HI Hitachi: 3 patents #420 of 3,950Top 15%
Overall (2002): #23,612 of 266,432Top 9%
3
Patents 2002

Issued Patents 2002

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
6462492 Position-sensorless controlling method of synchronous motor Kiyoshi Sakamoto, Tsunehiro Endou, Haruo Miura 2002-10-08
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, Haruo Miura, Hiroshi Fujii 2002-05-28
6369478 Permanent-magnet-type electric rotating machine and air compressor and generator using the same Haruo Koharagi, Tsukasa Taniguchi, Miyoshi Takahashi, Shinichi Wakui, Yasuo Fukushima +1 more 2002-04-09