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Mutsunori Matsunaga

HA Hitachi Appliances: 13 patents #1 of 109Top 1%
HI Hitachi: 7 patents #5,859 of 28,497Top 25%
HC Hitachi Air Conditioning Systems Co.: 1 patents #4 of 23Top 20%
HC Hitachi-Johnson Controls Air Conditioning: 1 patents #77 of 179Top 45%
Overall (All Time): #163,221 of 4,157,543Top 4%
25
Patents All Time

Issued Patents All Time

Showing 1–25 of 25 patents

Patent #TitleCo-InventorsDate
10584744 Refrigerant compressor with supporting bearing insulation Yuko Kozuma, Yasuaki Iizuka, Masaru Ohtahara 2020-03-10
9091266 Scroll compressor having a back pressure control valve for opening and closing a communication path in a stationary scroll Kouichi Imada, Takeshi Tsuchiya, Shuji Hasegawa, Yoshihiro Fukaya, Hiromu Takeda +1 more 2015-07-28
8992188 Revolution type compressor Satoshi Nakamura, Takeshi Tsuchiya, Masatsugu Chikano 2015-03-31
8888476 Horizontal scroll compressor Shuji Hasegawa, Masashi Miyake 2014-11-18
8888475 Scroll compressor with oil supply across a sealing part Yuichi Yanagase, Eiji Sato, Isamu Tsubono, Satoshi Nakamura, Masatsugu Chikano 2014-11-18
8747086 Scroll compressor Masatsugu Chikano, Kazuo Sakurai, Satoshi Nakamura 2014-06-10
8740594 Scroll compressor including seal member and guide ring Satoshi Nakamura, Takeshi Tsuchiya, Yuuichi Yanagase, Masatsugu Chikano 2014-06-03
8241021 Displacement type compressor having a self-start synchronous motor and start load reducing means Takeshi Tsuchiya, Yuuichi Yanagase, Kazuyuki Fujimura, Shigekazu Nozawa, Kenji Tojo +3 more 2012-08-14
8152502 Scroll compressor having guide ring supporting and urging seal member Satoshi Nakamura, Takeshi Tsuchiya, Yuuichi Yanagase, Masatsugu Chikano 2012-04-10
7824160 Scroll compressor and refrigerating apparatus Satoshi Nakamura, Shuji Hasegawa, Kenji Tojo 2010-11-02
7758326 Scroll fluid machine Kazuyuki Fujimura, Takeshi Tsuchiya, Yuichi Yanagase, Makoto Aoki, Masashi Miyake +6 more 2010-07-20
7628593 Horizontal type scroll compressor including a first space and a second space Takao Mizuno, Mutsumi Otsuka, Katsuya Ohashi, Yasushi Izunaga, Masashi Miyake +1 more 2009-12-08
7442017 Displacement type compressor having a self-start synchronous motor and start load reducing means Takeshi Tsuchiya, Yuuichi Yanagase, Kazuyuki Fujimura, Shigekazu Nozawa, Kenji Tojo +3 more 2008-10-28
7437882 Apparatus for driving a compressor and a refrigerating air conditioner Kenji Tojo, Yoshikatsu Tomita, Susumu Nakayama, Syunsuke Yasunori 2008-10-21
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
7082786 Scroll compressor and refrigerating system using ammonia group refrigerant Shunsuke Yasunori, Kenji Tojo 2006-08-01
7021912 Scroll fluid machine Takeshi Tsuchiya, Takao Mizuno, Masaru Ohtahara, Syunsuke Yasunori, Isao Hayase +2 more 2006-04-04
6966194 Refrigerating machine Atsuhiko Yokozeki, Susumu Nakayama, Kenji Tojo, Akira Saruta, Satoshi Kikuchi 2005-11-22
6925824 Apparatus for driving a compressor and a refrigerating air conditioner Kenji Tojo, Yoshikatsu Tomita, Susumu Nakayama, Syunsuke Yasunori 2005-08-09
6832488 Refrigerating machine Atsuhiko Yokozeki, Susumu Nakayama, Kenji Tojo, Akira Saruta, Satoshi Kikuchi 2004-12-21
6708520 Scroll compressor and refrigerating system using ammonia group refrigerant Shunsuke Yasunori, Kenji Tojo 2004-03-23
6345967 Scroll type fluid machine having different wrap side surface clearances Yuugo Mukai, Isamu Tsubono, Isao Hayase, Takeshi Tsuchiya, Toshiyuki Terai 2002-02-12
6280165 Scroll type fluid machine Takeshi Tsuchiya, Isao Hayase, Kazuo Sakurai 2001-08-28
5660539 Scroll compressor Takao Mizuno, Kenji Tojo, Hideyuki Ueda, Takeshi Hida 1997-08-26
5277564 Closed type scroll compressor with spherical slide bearing for the oil tube Takahiro Tamura, Kazuo Sakurai, Masashi Miyake 1994-01-11