MO

Masaru Ohtahara

HA Hitachi Appliances: 4 patents #13 of 109Top 15%
HC Hitachi-Johnson Controls Air Conditioning: 2 patents #38 of 179Top 25%
HI Hitachi: 1 patents #17,742 of 28,497Top 65%
Overall (All Time): #633,019 of 4,157,543Top 20%
8
Patents All Time

Issued Patents All Time

Showing 1–8 of 8 patents

Patent #TitleCo-InventorsDate
10584744 Refrigerant compressor with supporting bearing insulation Yuko Kozuma, Yasuaki Iizuka, Mutsunori Matsunaga 2020-03-10
10190586 Scroll compressor and air conditioner Masatsugu Chikano, Yuichi Yanagase, Masashi Miyake, Hiromu Takeda 2019-01-29
9500196 Scroll compressor with intermittent communication between back pressure chamber and compression chambers Hiromu Takeda, Shoji MATSUMURA, Masashi Miyake 2016-11-22
9181945 Scroll compressor with channels intermittently communicating internal and external compression chambers with back pressure chamber Hiromu Takeda, Masashi Miyake, Masatsugu Chikano, Shoji MATSUMURA 2015-11-10
7902713 Self-starting type permanent magnet synchronous motor and a compressor using the same Satoshi Kikuchi, Hiroyuki Mikami, Akeshi Takahashi, Tomio Yoshikawa, Keiji Tanaka +4 more 2011-03-08
7758326 Scroll fluid machine Kazuyuki Fujimura, Takeshi Tsuchiya, Yuichi Yanagase, Makoto Aoki, Masashi Miyake +6 more 2010-07-20
7163386 Scroll compressor having a movable auxiliary portion with contact plane of a stopper portion to contact a pane of the fixed scroll through elastic pressure of high pressure fluid Takeshi Tsuchiya, Yuuichi Yanagase, Kazuyuki Fujimura, Makoto Aoki, Shigekazu Nozawa +4 more 2007-01-16
7021912 Scroll fluid machine Takeshi Tsuchiya, Takao Mizuno, Mutsunori Matsunaga, Syunsuke Yasunori, Isao Hayase +2 more 2006-04-04