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Masataka Yanagihara
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Niiza-shi, JP
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Patents Grants
last 30 patents
Information
Patent Grant
Semiconductor device having nitride semiconductor layer
Patent number
8,704,207
Issue date
Apr 22, 2014
Sanken Electric Co., Ltd.
Masataka Yanagihara
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Semiconductor device with buffer layer for mitigating stress exerte...
Patent number
8,530,935
Issue date
Sep 10, 2013
Sanken Electric Co., Ltd.
Masataka Yanagihara
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Nitride-based semiconductor device with reduced leakage current
Patent number
7,745,850
Issue date
Jun 29, 2010
Sanken Electric Co., Ltd.
Koji Otsuka
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Semiconductor wafer, devices made therefrom, and method of fabrication
Patent number
7,652,282
Issue date
Jan 26, 2010
Sanken Electric Co., Ltd.
Masataka Yanagihara
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Gallium-nitride-based compound semiconductor device
Patent number
7,569,870
Issue date
Aug 4, 2009
Sanken Electric Co., Ltd.
Masataka Yanagihara
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Nitride semiconductor substrate and semiconductor element built the...
Patent number
7,518,154
Issue date
Apr 14, 2009
Sanken Electric Co., Ltd.
Koji Otsuka
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Light-emitting semiconductor device and method of fabrication
Patent number
6,979,844
Issue date
Dec 27, 2005
Sanken Electric Co., Ltd.
Tetsuji Moku
H01 - BASIC ELECTRIC ELEMENTS
Patents Applications
last 30 patents
Information
Patent Application
SEMICONDUCTOR DEVICE HAVING NITRIDE SEMICONDUCTOR LAYER
Publication number
20120326160
Publication date
Dec 27, 2012
Sanken Electric Co., Ltd
Masataka YANAGIHARA
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
SEMICONDUCTOR DEVICE
Publication number
20120261716
Publication date
Oct 18, 2012
Sanken Electric Co., Ltd
Masataka YANAGIHARA
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
SEMICONDUCTOR WAFER, DEVICES MADE THEREFROM, AND METHOD OF FABRICATION
Publication number
20080203382
Publication date
Aug 28, 2008
Sanken Electric Co., Ltd.
Masataka Yanagihara
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
Semiconductor device
Publication number
20070228401
Publication date
Oct 4, 2007
Osamu Machida
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
Semiconductor element
Publication number
20070196993
Publication date
Aug 23, 2007
Shinichi Iwakami
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
Semiconductor device with reduced leakage current, and method of fa...
Publication number
20060118824
Publication date
Jun 8, 2006
Sanken Electric Co., Ltd
Koji Otsuka
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
Semiconductor device and a method of making the same
Publication number
20050263791
Publication date
Dec 1, 2005
Sanken Electric Co., Ltd
Masataka Yanagihara
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
Light-emitting semiconductor device and method of fabrication
Publication number
20050247948
Publication date
Nov 10, 2005
Tetsuji Moku
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
Nitride semiconductor substrate, method of fabrication thereof, and...
Publication number
20050110043
Publication date
May 26, 2005
Sanken Electric Co., Ltd.
Koji Otsuka
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
Light-emitting semiconductor device and method of fabrication
Publication number
20030183835
Publication date
Oct 2, 2003
Tetsuji Moku
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
Light-emitting semiconductor device and method of fabrication
Publication number
20020158253
Publication date
Oct 31, 2002
Tetsuji Moku
H01 - BASIC ELECTRIC ELEMENTS