MI

Masato Ikegawa

HI Hitachi: 10 patents #4,206 of 28,497Top 15%
HG HGST: 4 patents #440 of 1,677Top 30%
HC Hitachi Chemical Company: 1 patents #1,071 of 1,946Top 60%
HC Hitachi Industrial Equipment Systems Co.: 1 patents #318 of 550Top 60%
📍 Kiyose, JP: #7 of 104 inventorsTop 7%
Overall (All Time): #275,811 of 4,157,543Top 7%
17
Patents All Time

Issued Patents All Time

Showing 1–17 of 17 patents

Patent #TitleCo-InventorsDate
9636912 Ink jet recording device Tsuneaki Takagishi, Nobuhiro Harada, Manabu Kato, Takashi Kawano 2017-05-02
8919934 Inkjet recording apparatus Eiji Ishii, Nobuhiro Harada, Tsuneaki Takagishi 2014-12-30
8077431 Apparatus and method for reducing turbulence of airflow in a hard disk drive Yukinobu Abe, Andre S. Chan, Ferdinand Hendriks, Hiroshi Mukai, Keiichi Takemori 2011-12-13
7929246 Magnetic disk drive with spoiler Keiichi Takemori, Hiroshi Mukai, Hiroyuki Ishii, Yukinobu Abe 2011-04-19
7869159 Apparatus and method for reducing turbulence of airflow in a hard disk drive Yukinobu Abe, Andre S. Chan, Ferdinand Hendriks, Hiroshi Mukai, Keiichi Takemori 2011-01-11
7457078 Magnetic disk apparatus with reduced disk fluttering by placing a groove in the peripheral wall of the housing Masashi Fukaya, Yoshiyuki Hirono, Hiroshi Mukai 2008-11-25
7314522 Apparatus and method for producing single crystal Shigeki Hirasawa, Hiroyuki Ishibashi, Akihiro Gunji 2008-01-01
6656752 Ion current density measuring method and instrument, and semiconductor device manufacturing method Nobuyuki Mise, Tatehito Usui, Kazuo Nojiri, Kazuyuki Tsunokuni, Tetsuo Ono 2003-12-02
6427621 Plasma processing device and plasma processing method Tsutomu Tetsuka, Ichiro Sasaki, Tatehito Usui, Hironobu Kawahara 2002-08-06
4464100 Scroll fluid apparatus handling compressible fluid Shigeru Machida, Kenji Tojo, Masao Shiibayashi 1984-08-07
4443166 Scroll fluid apparatus with an arcuate recess adjacent the stationary wrap Kenji Tojo, Masao Shiibayashi 1984-04-17
4441870 Scroll member Eiji Sato, Kenji Tojo 1984-04-10
4417863 Scroll member assembly of scroll-type fluid machine Kenji Tojo, Masao Shiibayashi 1983-11-29
4396364 Scroll fluid apparatus with crankshaft bearing located in orbiting pin force plane Kenji Tojo, Masao Shiibayashi 1983-08-02
4384831 Scroll-type fluid apparatus provided with means for counteracting a moment exerted on orbiting scroll member Masaya Imai, Kenji Tojo, Masao Shiibayashi 1983-05-24
4365941 Scroll compressor provided with means for pressing an orbiting scroll member against a stationary scroll member and self-cooling means Kenji Tojo, Taisei Hosoda, Masao Shiibayashi 1982-12-28
4350479 Scrool-type fluid machine with liquid-filled force-balanced pockets Kenji Tojo, Masao Shiibayashi, Masaya Imai 1982-09-21