HO

Hitoshi Ogawa

PA Panasonic: 16 patents #1,398 of 21,108Top 7%
HI Hitachi: 13 patents #3,142 of 28,497Top 15%
Mitsubishi Electric: 13 patents #2,044 of 25,717Top 8%
HG HGST: 7 patents #738 of 1,677Top 45%
FL Fujitsu Semiconductor Limited: 3 patents #229 of 1,301Top 20%
Fujitsu Limited: 3 patents #8,614 of 24,456Top 40%
MM Mitsubishi Motors: 2 patents #508 of 1,823Top 30%
FL Fujitsu Vlsi Limited: 1 patents #91 of 256Top 40%
FC Fuji Photo Optical Co.: 1 patents #305 of 509Top 60%
MK Mitsubishi Denki K.K.: 1 patents #164 of 577Top 30%
Overall (All Time): #42,718 of 4,157,543Top 2%
57
Patents All Time

Issued Patents All Time

Showing 51–57 of 57 patents

Patent #TitleCo-InventorsDate
4520624 Diesel particulate filter system Yuhiko Kiyota, Katsuyuki Tsuji, Satoru Kume, Hiroaki Takada, Kiyoichi Shinsei +1 more 1985-06-04
4521169 Vane pump with intermediate rotary casing and drive clutch 1985-06-04
4517466 Vacuum pump 1985-05-14
4514155 Rotary vane pump with packing means for the housing components 1985-04-30
4496297 Rotary vane pump with overlapping rotor and housing portions 1985-01-29
4491094 Vacuum pump-radiator fan drive system 1985-01-01
4437821 Shaft seal for pump means 1984-03-20