YH

Yuji Hanada

PE Pentax: 2 patents #187 of 396Top 50%
PE Pentax: 1 patents #515 of 761Top 70%
Overall (All Time): #1,601,561 of 4,157,543Top 40%
3
Patents All Time

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
6977688 Auxiliary power supply unit and portable electronic system Shinichi Kakiuchi 2005-12-20
6798175 Power supply circuit Shinichi Kakiuchi 2004-09-28
6429623 Power-supply unit incorporating an electric double layer capacitor, and a method of charging the electric double layer capacitor 2002-08-06