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Mitsuhiko Sakai
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Kyoto, JP
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Patents Grants
last 30 patents
Information
Patent Grant
Semiconductor light emitting device with frosted semiconductor layer
Patent number
11,616,172
Issue date
Mar 28, 2023
Rohm Co., Ltd.
Masakazu Takao
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Semiconductor light emitting device
Patent number
10,483,435
Issue date
Nov 19, 2019
Rohm Co., Ltd.
Masakazu Takao
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Semiconductor light emitting device
Patent number
10,032,961
Issue date
Jul 24, 2018
Rohm Co., Ltd.
Masakazu Takao
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Semiconductor light emitting device
Patent number
9,786,819
Issue date
Oct 10, 2017
Rohm Co., Ltd.
Masakazu Takao
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Semiconductor light emitting device
Patent number
9,450,145
Issue date
Sep 20, 2016
Rohm Co., Ltd.
Masakazu Takao
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Semiconductor light emitting device
Patent number
9,196,808
Issue date
Nov 24, 2015
Rohm Co., Ltd.
Masakazu Takao
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Semiconductor light emitting device
Patent number
9,018,650
Issue date
Apr 28, 2015
Rohm Co., Ltd.
Masakazu Takao
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Semiconductor light emitting device and fabrication method for the...
Patent number
8,536,598
Issue date
Sep 17, 2013
Rohm Co., Ltd.
Masakazu Takao
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Semiconductor light emitting device and method for manufacturing th...
Patent number
8,198,645
Issue date
Jun 12, 2012
Rohm Co., Ltd.
Mitsuhiko Sakai
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Semiconductor light emitting device and method for manufacturing th...
Patent number
8,124,985
Issue date
Feb 28, 2012
Rohm Co., Ltd.
Mitsuhiko Sakai
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Semiconductor light emitting device and fabrication method for the...
Patent number
8,106,412
Issue date
Jan 31, 2012
Rohm Co., Ltd.
Masakazu Takao
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Nitride semiconductor light emitting device
Patent number
8,093,606
Issue date
Jan 10, 2012
Rohm Co., Ltd.
Masayuki Sonobe
B82 - NANO-TECHNOLOGY
Information
Patent Grant
Semiconductor light emitting device and fabrication method for the...
Patent number
8,039,864
Issue date
Oct 18, 2011
Rohm Co., Ltd.
Masakazu Takao
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Nitride semiconductor light-emitting device and method of manufactu...
Patent number
7,786,502
Issue date
Aug 31, 2010
Rohm Co., Ltd.
Mitsuhiko Sakai
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Semiconductor light emitting element
Patent number
7,781,791
Issue date
Aug 24, 2010
Rohm Co., Ltd.
Mitsuhiko Sakai
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Semiconductor light emitting device
Patent number
7,375,380
Issue date
May 20, 2008
Rohm Co., Ltd.
Hirokazu Asahara
H01 - BASIC ELECTRIC ELEMENTS
Patents Applications
last 30 patents
Information
Patent Application
SEMICONDUCTOR LIGHT EMITTING DEVICE
Publication number
20230197906
Publication date
Jun 22, 2023
Rohm Co., Ltd.
Masakazu TAKAO
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
SEMICONDUCTOR LIGHT EMITTING DEVICE
Publication number
20200052163
Publication date
Feb 13, 2020
Rohm Co., Ltd.
Masakazu TAKAO
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
SEMICONDUCTOR LIGHT EMITTING DEVICE
Publication number
20180301599
Publication date
Oct 18, 2018
Rohm Co., Ltd.
Masakazu TAKAO
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
SEMICONDUCTOR LIGHT EMITTING DEVICE
Publication number
20180019381
Publication date
Jan 18, 2018
Rohm Co., Ltd.
Masakazu TAKAO
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
SEMICONDUCTOR LIGHT EMITTING DEVICE
Publication number
20160365489
Publication date
Dec 15, 2016
Rohm Co., Ltd.
Masakazu TAKAO
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
SEMICONDUCTOR LIGHT EMITTING DEVICE
Publication number
20160056332
Publication date
Feb 25, 2016
Rohm Co., Ltd.
Masakazu TAKAO
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
SEMICONDUCTOR LIGHT EMITTING DEVICE
Publication number
20140264267
Publication date
Sep 18, 2014
Rohm Co., Ltd.
Masakazu TAKAO
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
SEMICONDUCTOR LIGHT EMITTING DEVICE
Publication number
20140008610
Publication date
Jan 9, 2014
Rohm Co., Ltd.
Masakazu Takao
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
SEMICONDUCTOR LIGHT EMITTING DEVICE AND FABRICATION METHOD FOR THE...
Publication number
20120132889
Publication date
May 31, 2012
Rohm Co., Ltd.
Masakazu Takao
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
SEMICONDUCTOR LIGHT EMITTING DEVICE AND FABRICATION METHOD FOR THE...
Publication number
20100133505
Publication date
Jun 3, 2010
ROHM CO., LTD.
Masakazu Takao
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
SEMICONDUCTOR LIGHT EMITTING DEVICE AND FABRICATION METHOD FOR THE...
Publication number
20100133507
Publication date
Jun 3, 2010
Rohm Co., Ltd.
Masakazu Takao
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
SEMICONDUCTOR LIGHT EMITTING DEVICE AND METHOD FOR MANUFACTURING TH...
Publication number
20100019257
Publication date
Jan 28, 2010
Rohm Co., Ltd.
Mitsuhiko Sakai
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
Nitride Semiconductor Light Emitting Device
Publication number
20090278144
Publication date
Nov 12, 2009
Masayuki Sonobe
B82 - NANO-TECHNOLOGY
Information
Patent Application
Semiconductor Light Emitting Device and Method for Manufacturing th...
Publication number
20090278145
Publication date
Nov 12, 2009
ROHM CO., LTD.
Mitsuhiko Sakai
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
Semiconductor Light Emitting Device
Publication number
20090206357
Publication date
Aug 20, 2009
Rohm Co., Ltd.
Norikazu Ito
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
NITRIDE SEMICONDUCTOR LIGHT-EMITTING DEVICE AND METHOD OF MANUFACTU...
Publication number
20090166663
Publication date
Jul 2, 2009
ROHM CO., LTD.
Mitsuhiko Sakai
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
Semiconductor Light Emitting Element
Publication number
20090026468
Publication date
Jan 29, 2009
Rohm Co., Ltd.
Mitsuhiko Sakai
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
Semiconductor element and method of making the same
Publication number
20090001402
Publication date
Jan 1, 2009
ROHM CO., LTD.
Mitsuhiko Sakai
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
Semiconductor Light Emitting Device and Method for Manufacturing th...
Publication number
20080258166
Publication date
Oct 23, 2008
Mitsuhiko Sakai
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
Semiconductor light emitting device
Publication number
20070102692
Publication date
May 10, 2007
Hirokazu Asahara
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
Semiconductor light emitting device
Publication number
20060273335
Publication date
Dec 7, 2006
Hirokazu Asahara
H01 - BASIC ELECTRIC ELEMENTS