YI

Yasufumi Ikkai

Sumitomo Electric Industries: 28 patents #554 of 21,551Top 3%
Overall (All Time): #140,057 of 4,157,543Top 4%
28
Patents All Time

Issued Patents All Time

Showing 26–28 of 28 patents

Patent #TitleCo-InventorsDate
5444340 Controlling apparatus of motor Satoshi Tamaki, Yasuhiro Kondo 1995-08-22
5321340 Driving method for three-phase stepping motor Satoshi Tamaki, Yasuhiro Kondo 1994-06-14
5283510 Method for driving three phase stepping motor Satoshi Tamaki, Yasuhiro Kondo 1994-02-01