Inventor
MURAYAMA YOSHIMASA
JP12 patents
⚠️ This page may combine multiple inventors who share the name “MURAYAMA YOSHIMASA”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
HITACHI LTD
11 patentsUS4433202AFeb 21, 1984
Thin film solar cell
HITACHI LTD46 citations92
US4673959AJun 16, 1987
Heterojunction FET with doubly-doped channel
HITACHI LTD20 citations82
US5003366AMar 26, 1991
Hetero-junction bipolar transistor
HITACHI LTD20 citations81
US4967141AOct 30, 1990
Method of taking out and storing energy in a superconductive ring or coil
HITACHI LTD12 citations73
US4796068AJan 3, 1989
Semiconductor device having ultrahigh-mobility
HITACHI LTD14 citations73
US4605945AAug 12, 1986
Semiconductor device
HITACHI LTD15 citations73
US4559547ADec 17, 1985
Semiconductor device
HITACHI LTD10 citations73
US6525336B1Feb 25, 2003
Superfine electronic device and method for making same
HITACHI LTD3 citations62
US4759030AJul 19, 1988
Semiconductor laser
HITACHI LTD6 citations62
US6114762ASep 5, 2000
Atomic wire and atomic wire switch
HITACHI LTD2 citations60
US6153500ANov 28, 2000
Atomic wire and atomic wire switch
HITACHI LTD0 citations49