Inventor
TWYNAM JOHN KEVIN
JP19 patents
⚠️ This page may combine multiple inventors who share the name “TWYNAM JOHN KEVIN”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
SHARP KK
16 patentsUS6611008B2Aug 26, 2003
Heterojunction bipolar transistor capable of restraining the conductivity modulation of the ballast layer
SHARP KK24 citations91
US6399969B1Jun 4, 2002
Heterojunction bipolar transistor including collector/base heterojunction achieving high operation efficiency
SHARP KK17 citations83
US6133592AOct 17, 2000
Compound semiconductor device and method for producing the same
SHARP KK9 citations74
US6111265AAug 29, 2000
Gunn diode having a graded aluminum gallium arsenide active layer and Gunn diode oscillator
SHARP KK9 citations73
US5721437AFeb 24, 1998
Heterojunction-type bipolar transistor with ballast resistance layer
SHARP KK11 citations71
US5719415AFeb 17, 1998
Hetero-junction bipolar transistor
SHARP KK12 citations71
US7759760B2Jul 20, 2010
Semiconductor switching element and semiconductor circuit apparatus
SHARP KK7 citations70
US9269801B2Feb 23, 2016
Normally-off-type heterojunction field-effect transistor
SHARP KK2 citations62
US7893461B2Feb 22, 2011
Electronic device and heterojunction FET
SHARP KK3 citations62
US6566694B2May 20, 2003
Heterojunction bipolar transferred electron tetrode
SHARP KK3 citations62
US7733105B2Jun 8, 2010
Voltage clamp circuit and semiconductor device, overcurrent protection circuit, voltage measurement probe, voltage measurement device and semiconductor evaluation device respectively using the same
SHARP KK3 citations61
US8004022B2Aug 23, 2011
Field effect transistor
SHARP KK4 citations59
US6037663AMar 14, 2000
Ohmic electrode structure for Inx Ga1-x As layer
SHARP KK6 citations57
US7566917B2Jul 28, 2009
Electronic device and heterojunction FET
SHARP KK1 citations51
US7126171B2Oct 24, 2006
Bipolar transistor
SHARP KK1 citations51
US7928480B2Apr 19, 2011
Semiconductor device
SHARP KK0 citations41