Yasuhito Urashima

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Chiba-shi, JP

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Patents Grantslast 30 patents

Information Patent Grant
Process for fabrication of nitride semiconductor light emitting device
- Patent number 8,173,461
- Issue date May 8, 2012
- Showa Denko K.K.
- Yasuhito Urashima
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Group III nitride semiconductor multilayer structure
- Patent number 7,935,955
- Issue date May 3, 2011
- Showa Denko K.K.
- Yasuhito Urashima
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Nitride semiconductor light-emitting device and method for fabricat...
- Patent number 7,803,648
- Issue date Sep 28, 2010
- Showa Denko K.K.
- Yasuhito Urashima
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Nitride semiconductor light-emitting device and method for fabricat...
- Patent number 7,652,299
- Issue date Jan 26, 2010
- Showa Denko K.K.
- Yasuhito Urashima
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Gallium nitride-based semiconductor light emitting device and proce...
- Patent number 7,479,663
- Issue date Jan 20, 2009
- Showa Denko K.K.
- Yasuhito Urashima
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
METHOD OF FABRICATING GROUP-III NITRIDE SEMICONDUCTOR CRYSTAL, METH...
- Patent number 6,852,161
- Issue date Feb 8, 2005
- Showa Denko K.K.
- Yasuhito Urashima
- H01 - BASIC ELECTRIC ELEMENTS

Patents Applicationslast 30 patents

Information Patent Application
PROCESS FOR FABRICATION OF NITRIDE SEMICONDUCTOR LIGHT EMITTING DEVICE
- Publication number 20090170224
- Publication date Jul 2, 2009
- SHOWA DENKO K.K.
- Yasuhito Urashima
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
Group III Nitride Semiconductor Multilayer Structure
- Publication number 20080230780
- Publication date Sep 25, 2008
- Yasuhito Urashima
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
Nitride Semiconductor Light-Emitting Device and Method for Fabricat...
- Publication number 20080191226
- Publication date Aug 14, 2008
- SHOWA DENKO K.K.
- Yasuhito Urashima
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
Gallium nitride-based semiconductor light emitting device and proce...
- Publication number 20070057272
- Publication date Mar 15, 2007
- Showa Denko K.K.
- Yasuhito Urashima
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
Nitride semiconductor light-emitting device and method for fabricat...
- Publication number 20060192247
- Publication date Aug 31, 2006
- Showa Denko K.K.
- Yasuhito Urashima
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
Method of fabricating group-III nitride semiconductor crystal, meth...
- Publication number 20020155712
- Publication date Oct 24, 2002
- Yasuhito Urashima
- C30 - CRYSTAL GROWTH