SI

Shizu Ishikawa

HC Hitachi Industrial Equipment Systems Co.: 4 patents #117 of 550Top 25%
Overall (All Time): #1,240,252 of 4,157,543Top 30%
4
Patents All Time

Issued Patents All Time

Showing 1–4 of 4 patents

Patent #TitleCo-InventorsDate
8038391 Vortex blower Hiroshi Asabuki, Satoshi Takeda 2011-10-18
8033783 Diagonal flow fan Fumiaki Ishida 2011-10-11
7806649 Blower Fumiaki Ishida, Satoshi Takeda 2010-10-05
7470104 Blower Fumiaki Ishida, Satoshi Takeda 2008-12-30