Inventor
NAITO MASAYOSHI
JP17 patents
⚠️ This page may combine multiple inventors who share the name “NAITO MASAYOSHI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
HITACHI LTD
11 patentsUS5841946ANov 24, 1998
Chaotic character evaluating apparatus and method of the same and processing apparatus of resulting the chaotic character evaluation
HITACHI LTD32 citations92
US4223328ASep 16, 1980
Field controlled thyristor with dual resistivity field layer
HITACHI LTD42 citations92
US5510976AApr 23, 1996
Control system
HITACHI LTD19 citations84
US4604535AAug 5, 1986
FET-bipolar switching device and circuit
HITACHI LTD23 citations82
US4388635AJun 14, 1983
High breakdown voltage semiconductor device
HITACHI LTD19 citations82
US5107307AApr 21, 1992
Semiconductor device for control of light
HITACHI LTD8 citations73
US4542398ASep 17, 1985
Semiconductor devices of multi-emitter type
HITACHI LTD16 citations73
US4682199AJul 21, 1987
High voltage thyristor with optimized doping, thickness, and sheet resistivity for cathode base layer
HITACHI LTD6 citations63
US4219832AAug 26, 1980
Thyristor having low on-state voltage with low areal doping emitter region
HITACHI LTD5 citations62
US4107731AAug 15, 1978
Silicon doped with cadmium to reduce lifetime
HITACHI LTD3 citations62
US4404580ASep 13, 1983
Light activated semiconductor device
HITACHI LTD1 citations52