Inventor
OKABE TAKAHIRO
JP28 patents
⚠️ This page may combine multiple inventors who share the name “OKABE TAKAHIRO”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
HITACHI LTD
18 patentsUS4609407ASep 2, 1986
Method of making three dimensional semiconductor devices in selectively laser regrown polysilicon or amorphous silicon layers
HITACHI LTD83 citations94
US4769687ASep 6, 1988
Lateral bipolar transistor and method of producing the same
HITACHI LTD25 citations93
US4258379AMar 24, 1981
IIL With in and outdiffused emitter pocket
HITACHI LTD39 citations91
US5061645AOct 29, 1991
Method of manufacturing a bipolar transistor
HITACHI LTD9 citations74
US4258330AMar 24, 1981
Differential current amplifier
HITACHI LTD7 citations74
US4051389ASep 27, 1977
Flip-flop circuit
HITACHI LTD9 citations74
US4543499ASep 24, 1985
I2 L circuitry having operating current supplied by higher-voltage circuitry fabricated on same chip
HITACHI LTD10 citations73
US4429326AJan 31, 1984
I2 L Memory with nonvolatile storage
HITACHI LTD8 citations73
US4694321ASep 15, 1987
Semiconductor device having bipolar transistor and integrated injection logic
HITACHI LTD8 citations71
US4933737AJun 12, 1990
Polysilon contacts to IC mesas
HITACHI LTD5 citations63
US4589096AMay 13, 1986
IIL semiconductor memory including arrangement for preventing information loss during read-out
HITACHI LTD3 citations63
US4433258AFeb 21, 1984
Complementary Schottky transistor logic circuit
HITACHI LTD4 citations63
US4246500AJan 20, 1981
Current mirror circuit
HITACHI LTD6 citations63
US4047119ASep 6, 1977
Transistor differential amplifier circuit
HITACHI LTD4 citations60
US5019523AMay 28, 1991
Process for making polysilicon contacts to IC mesas
HITACHI LTD0 citations52
US4825281AApr 25, 1989
Bipolar transistor with sidewall bare contact structure
HITACHI LTD1 citations52
US4233574ANov 11, 1980
Oscillation circuit
HITACHI LTD1 citations52
US4370627AJan 25, 1983
Integrated injection logic amplifier and oscillator circuits
HITACHI LTD0 citations42