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Charlotte Jonas
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Morrisville, NC, US
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Patents Grants
last 30 patents
Information
Patent Grant
Double guard ring edge termination for silicon carbide devices
Patent number
9,640,609
Issue date
May 2, 2017
Cree, Inc.
Qingchun Zhang
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
High power insulated gate bipolar transistors
Patent number
9,548,374
Issue date
Jan 17, 2017
Cree, Inc.
Qingchun Zhang
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Vertical power transistor with built-in gate buffer
Patent number
9,184,237
Issue date
Nov 10, 2015
Cree, Inc.
Sei-Hyung Ryu
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Field effect transistor devices with low source resistance
Patent number
9,142,662
Issue date
Sep 22, 2015
Cree, Inc.
Sei-Hyung Ryu
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Transistor with A-face conductive channel and trench protecting wel...
Patent number
9,064,710
Issue date
Jun 23, 2015
Cree, Inc.
Qingchun Zhang
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Field effect transistor devices with low source resistance
Patent number
9,029,945
Issue date
May 12, 2015
Cree, Inc.
Sei-Hyung Ryu
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
High power insulated gate bipolar transistors
Patent number
8,710,510
Issue date
Apr 29, 2014
Cree, Inc.
Qingchun Zhang
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Transistor with A-face conductive channel and trench protecting wel...
Patent number
8,211,770
Issue date
Jul 3, 2012
Cree, Inc.
Qingchun Zhang
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Transistor with A-face conductive channel and trench protecting wel...
Patent number
7,989,882
Issue date
Aug 2, 2011
Cree, Inc.
Qingchun Zhang
H01 - BASIC ELECTRIC ELEMENTS
Patents Applications
last 30 patents
Information
Patent Application
High Power Insulated Gate Bipolar Transistors
Publication number
20150287805
Publication date
Oct 8, 2015
Cree, Inc.
Qingchun Zhang
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
VERTICAL POWER TRANSISTOR WITH BUILT-IN GATE BUFFER
Publication number
20140374773
Publication date
Dec 25, 2014
Sei-Hyung Ryu
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
Field Effect Transistor Devices with Low Source Resistance
Publication number
20120280252
Publication date
Nov 8, 2012
Sei-Hyung Ryu
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
Field Effect Transistor Devices with Low Source Resistance
Publication number
20120280270
Publication date
Nov 8, 2012
Sei-Hyung Ryu
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
TRANSISTOR WITH A-FACE CONDUCTIVE CHANNEL AND TRENCH PROTECTING WEL...
Publication number
20120235164
Publication date
Sep 20, 2012
Cree, Inc.
Qingchun Zhang
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
TRANSISTOR WITH A-FACE CONDUCTIVE CHANNEL AND TRENCH PROTECTING WEL...
Publication number
20110250737
Publication date
Oct 13, 2011
Cree, Inc.
Qingchun Zhang
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
Transistor with A-Face Conductive Channel and Trench Protecting Wel...
Publication number
20090146154
Publication date
Jun 11, 2009
Cree, Inc.
Qingchun Zhang
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
HIGH POWER INSULATED GATE BIPOLAR TRANSISTORS
Publication number
20080105949
Publication date
May 8, 2008
Cree, Inc.
Qingchun Zhang
H01 - BASIC ELECTRIC ELEMENTS