Inventor
SHIMAWAKI HIDENORI
JP15 patents
⚠️ This page may combine multiple inventors who share the name “SHIMAWAKI HIDENORI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
NEC CORP
9 patentsUS5903018AMay 11, 1999
Bipolar transistor including a compound semiconductor
NEC CORP67 citations95
US7800131B2Sep 21, 2010
Field effect transistor
NEC CORP48 citations93
US7863648B2Jan 4, 2011
Field effect transistor
NEC CORP38 citations92
US5321302AJun 14, 1994
Heterojunction bipolar transistor having base structure for improving both cut-off frequency and maximum oscillation frequency
NEC CORP34 citations92
US7924799B2Apr 12, 2011
Radio communication device
NEC CORP14 citations84
US5296389AMar 22, 1994
Method of fabricating a heterojunction bipolar transistor
NEC CORP11 citations73
US4902643AFeb 20, 1990
Method of selective epitaxial growth for compound semiconductors
NEC CORP15 citations73
US5160994ANov 3, 1992
Heterojunction bipolar transistor with improved base layer
NEC CORP4 citations62
US7038244B2May 2, 2006
Semiconductor device and method of manufacturing the same
NEC CORP2 citations61
NEC COMPOUND SEMICONDUCTOR
4 patentsUS6881988B2Apr 19, 2005
Heterojunction bipolar transistor and semiconductor integrated circuit device using the same
NEC COMPOUND SEMICONDUCTOR19 citations82
US6924201B2Aug 2, 2005
Heterojunction bipolar transistor and method of producing the same
NEC COMPOUND SEMICONDUCTOR8 citations73
US6525388B1Feb 25, 2003
Compound semiconductor device having diode connected between emitter and collector of bipolar transistor
NEC COMPOUND SEMICONDUCTOR7 citations73
US6661038B2Dec 9, 2003
Semiconductor device and method of producing the same
NEC COMPOUND SEMICONDUCTOR2 citations57