Inventor
SHIMADA YASUHEI
JP12 patents
⚠️ This page may combine multiple inventors who share the name “SHIMADA YASUHEI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
NEC CORP
11 patentsUS5705877AJan 6, 1998
Piezoelectric transformer driving circuit
NEC CORP140 citations98
US5886477AMar 23, 1999
Driver of cold-cathode fluorescent lamp
NEC CORP118 citations97
US5866969AFeb 2, 1999
Actuating circuit of piezoelectric transformer and actuating method thereof
NEC CORP106 citations97
US5923546AJul 13, 1999
Control circuit and method for driving and controlling parasitic vibration of a piezoelectric transformer-inverter
NEC CORP57 citations96
US6075325AJun 13, 2000
Inverter and method for driving a plurality of cold cathode tubes in parallel
NEC CORP59 citations95
US5859489AJan 12, 1999
Piezoelectric transformer driving circuit
NEC CORP65 citations95
US5731652AMar 24, 1998
Power source unit employing piezoelectric transformer frequency-controlled and voltage-controlled to operate at a maximum efficiency
NEC CORP82 citations95
US6020719AFeb 1, 2000
Secondary battery unit using electric double layer condenser
NEC CORP28 citations92
US4845661AJul 4, 1989
Display information processing apparatus
NEC CORP39 citations92
US6028388AFeb 22, 2000
Piezoelectric transformer driver
NEC CORP17 citations83
US5675484AOct 7, 1997
Wide input voltage range power supply with auto-transformers and piezoelectric transformer
NEC CORP17 citations73