Inventor
YAMAMURA MASAHIRO
19 patents
⚠️ This page may combine multiple inventors who share the name “YAMAMURA MASAHIRO”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
HITACHI LTD
13 patentsUS5386135AJan 31, 1995
Semiconductor CMOS memory device with separately biased wells
HITACHI LTD83 citations96
US5324982AJun 28, 1994
Semiconductor memory device having bipolar transistor and structure to avoid soft error
HITACHI LTD36 citations96
US5910010AJun 8, 1999
Semiconductor integrated circuit device, and process and apparatus for manufacturing the same
HITACHI LTD112 citations95
US5497023AMar 5, 1996
Semiconductor memory device having separately biased wells for isolation
HITACHI LTD67 citations95
US6208010B1Mar 27, 2001
Semiconductor memory device
HITACHI LTD25 citations92
US5148255ASep 15, 1992
Semiconductor memory device
HITACHI LTD45 citations92
US5680066AOct 21, 1997
Signal transition detector circuit
HITACHI LTD15 citations82
US4283674AAug 11, 1981
Constant voltage output circuit
HITACHI LTD22 citations80
US4264873AApr 28, 1981
Differential amplification circuit
HITACHI LTD22 citations80
US5619151AApr 8, 1997
Semiconductor device
HITACHI LTD14 citations74
US4059808ANov 22, 1977
Differential amplifier
HITACHI LTD16 citations74
US4313145AJan 26, 1982
Power output circuit
HITACHI LTD4 citations62
US4276442AJun 30, 1981
Protective circuit
HITACHI LTD3 citations62