Inventor
YAMAMURA HIDEHO
JP15 patents
⚠️ This page may combine multiple inventors who share the name “YAMAMURA HIDEHO”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
HITACHI LTD
12 patentsUS5281151AJan 25, 1994
Semiconductor chip carrier, module having same chip carrier mounted therein, and electronic device incorporating same module
HITACHI LTD261 citations99
US6163071ADec 19, 2000
BGA type semiconductor device and electronic equipment using the same
HITACHI LTD75 citations95
US5844762ADec 1, 1998
Electronic circuit device having a function of inhibiting resonance in power wiring
HITACHI LTD30 citations92
US7355829B2Apr 8, 2008
Overvoltage protection circuit, and power source, power supply system and electronic apparatus using the overvoltage protection circuit
HITACHI LTD13 citations80
US6734545B1May 11, 2004
BGA type semiconductor device and electronic equipment using the same
HITACHI LTD10 citations73
US5293005AMar 8, 1994
Electronic device having high-density wiring
HITACHI LTD9 citations73
US4710654ADec 1, 1987
Delay circuit including an improved CR integrator circuit
HITACHI LTD11 citations73
US7548411B2Jun 16, 2009
Electronic circuit structure, power supply apparatus, power supply system, and electronic apparatus
HITACHI LTD7 citations71
US7208883B2Apr 24, 2007
Current detection circuit, and power supply apparatus, power supply system and electronic apparatus using the current detection circuit
HITACHI LTD9 citations70
US7372683B2May 13, 2008
Over voltage detection circuit, and power source circuit, power supply system and electronic apparatus using the over voltage detection circuit
HITACHI LTD5 citations61
US7911769B2Mar 22, 2011
Electronic circuit structure, power supply apparatus, power supply system, and electronic apparatus
HITACHI LTD3 citations60
US6628010B2Sep 30, 2003
Parallel power system and an electronic apparatus using the power system
HITACHI LTD6 citations60