SN

Shigekazu Nozawa

HI Hitachi: 12 patents #3,472 of 28,497Top 15%
HA Hitachi Appliances: 4 patents #13 of 109Top 15%
HC Hitachi Air Conditioning Systems Co.: 1 patents #4 of 23Top 20%
Overall (All Time): #258,600 of 4,157,543Top 7%
18
Patents All Time

Issued Patents All Time

Showing 1–18 of 18 patents

Patent #TitleCo-InventorsDate
8241021 Displacement type compressor having a self-start synchronous motor and start load reducing means Takeshi Tsuchiya, Yuuichi Yanagase, Kazuyuki Fujimura, Mutsunori Matsunaga, Kenji Tojo +3 more 2012-08-14
7501734 Motor, compressor, and air conditioner Akeshi Takahashi, Tomio Yoshikawa, Baiying Huang, Susumu Nakayaka, Haruo Koharagi +1 more 2009-03-10
7442017 Displacement type compressor having a self-start synchronous motor and start load reducing means Takeshi Tsuchiya, Yuuichi Yanagase, Kazuyuki Fujimura, Mutsunori Matsunaga, Kenji Tojo +3 more 2008-10-28
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, Mutsunori Matsunaga +4 more 2007-01-16
7014437 Screw compressor Hiroki Ohsumimoto, Masayuki Urashin, Takeshi Hida, Hirotaka Kameya 2006-03-21
6884049 Screw compressor and method of manufacturing rotor for the same Takeshi Hida, Masayuki Urashin, Hiroki Ohsumimoto, Hirotaka Kameya, Atsushi Watanabe 2005-04-26
6554595 Compressor with oil-mist separator Takeshi Hida, Masayuki Urashin, Hiroki Osumimoto, Hirotaka Kameya, Atsushi Watanabe 2003-04-29
6506039 Screw compressor Hiroki Osumimoto, Masayuki Urashin, Takeshi Hida, Hirotaka Kameya, Atsushi Watanabe 2003-01-14
6422844 Screw compressor Yasuhiro Hioki 2002-07-23
6273693 Screw compressor Takeshi Hida, Masayuki Urashin, Noriyuki Yamazaki 2001-08-14
6257855 Screw fluid machine Hirotaka Kameya, Masayuki Urashin, Takeshi Hida, Masakazu Aoki 2001-07-10
6183227 Screw compressor Takeshi Hida, Masayuki Urashin, Noriyuki Yamazaki 2001-02-06
5947709 Scroll compressor with oiling mechanism Masaki Koyama, Akihiko Yamamoto, Muneo Mizumoto, Eiichi Satoh, Kazutaka Suefuji +3 more 1999-09-07
5716202 Scroll compressor with oiling mechanism Masaki Koyama, Akihiko Yamamoto, Muneo Mizumoto, Eiichi Satoh, Kazutaka Suefuji +3 more 1998-02-10
4913634 Screw compressor with slide valve movement preventing structure Kimio Nagata, Minetoshi Izushi 1990-04-03
4727725 Gas injection system for screw compressor Kimio Nagata 1988-03-01
4261180 Refrigerator Masayuki Urashin, Hiroaki Kuno, Mitsuhiko Miyagawa, Hiroshi Takagi 1981-04-14
4234296 Screw compressor Katsumi Matsubara, Masaharu Ishii, Mitsuhiko Miyagawa 1980-11-18