KK

Katsumi Kobori

SO Sony: 6 patents #6,793 of 25,231Top 30%
📍 Rifu, JP: #502 of 2,101 inventorsTop 25%
Overall (All Time): #879,337 of 4,157,543Top 25%
6
Patents All Time

Issued Patents All Time

Showing 1–6 of 6 patents

Patent #TitleCo-InventorsDate
6836393 Resonance type power supply unit Susumu Kaneko 2004-12-28
6816395 Switching power source device Masami Okada 2004-11-09
6654259 Resonance type switching power supply unit Wako Koshita 2003-11-25
6175219 Booster type converter with low power loss Noritoshi Imamura 2001-01-16
6130825 Current-resonant switching power supply Noritoshi Imamura 2000-10-10
6043993 Resonance type switching power source Noritoshi Imamura 2000-03-28