KH

Katsumi Hirooka

MM Mitsubishi Mining: 5 patents #132 of 2,247Top 6%
Mitsubishi Electric: 3 patents #8,691 of 25,717Top 35%
DI Daikin Industries: 1 patents #1,764 of 2,957Top 60%
📍 Ebeye: #565 of 4,528 inventorsTop 15%
Overall (All Time): #583,181 of 4,157,543Top 15%
9
Patents All Time

Issued Patents All Time

Showing 1–9 of 9 patents

Patent #TitleCo-InventorsDate
7585160 Hermetic compressor Takashi Hikawa 2009-09-08
6361296 Scroll type compressor having a gap that collects and supplies oil to an oil supply path or the eccentric bearing Hiroyuki Kobayashi, Susumu Matsuda 2002-03-26
6106254 Closed-type scroll compressor Hisao Mizuno 2000-08-22
6012911 Scroll type compressor having an oil supply path for the eccentric bearing Hiroyuki Kobayashi, Susumu Matsuda 2000-01-11
5988999 Scroll type fluid machine having a reduced Oldham ring gap Kazuhiro Sato, Hiroyuki Kobayashi 1999-11-23
5584678 Scroll type fluid machine having tip seals of different carbon fiber composition rates Hiroyuki Kobayashi, Susumu Matsuda 1996-12-17
5316454 Fluid pump and rotary machine having said fluid pump Makoto Fujitani, Yukio Nagato, Kimiharu Takeda, Tetsuzo Ukai, Toshiyuki Shikanai 1994-05-31
5074760 Scroll type compressor Takahisa Hirano, Tetsuo Ono, Ryuhei Tanigaki 1991-12-24
5074761 Rotary compressor Takahisa Hirano, Tetsuo Ono, Ryuhei Tanigaki 1991-12-24