FI

Fumiaki Ishida

HI Hitachi: 5 patents #7,555 of 28,497Top 30%
HC Hitachi Industrial Equipment Systems Co.: 3 patents #164 of 550Top 30%
Overall (All Time): #656,123 of 4,157,543Top 20%
8
Patents All Time

Issued Patents All Time

Showing 1–8 of 8 patents

Patent #TitleCo-InventorsDate
8033783 Diagonal flow fan Shizu Ishikawa 2011-10-11
7806649 Blower Shizu Ishikawa, Satoshi Takeda 2010-10-05
7470104 Blower Shizu Ishikawa, Satoshi Takeda 2008-12-30
5672052 Blower muffling apparatus Masayuki Fujio, Hiromoto Ashihara, Takeshi Moritake 1997-09-30
5628615 Vortex flow blower and vane wheel therefor Hiroshi Asabuki, Masayuki Fujio, Takashi Watanabe, Susumu Yamazaki 1997-05-13
5600886 Method of making vortex flow blower and vane wheel therefor Hiroshi Asabuki, Masayuki Fujio, Takashi Watanabe, Susumu Yamazaki 1997-02-11
5569023 Vortex blower Masayuki Fujio, Kazuo Kobayashi, Kengo Hasegawa 1996-10-29
5487639 Vortex flow blower and vane wheel therefor Hiroshi Asabuki, Masayuki Fujio, Takashi Watanabe, Susumu Yamazaki 1996-01-30