Yohei Wakai

Person

Anan-shi, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Semiconductor light emitting device having a recess with irregulari...
- Patent number 10,381,516
- Issue date Aug 13, 2019
- Nichia Corporation
- Yohei Wakai
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Method of manufacturing nitride semiconductor element
- Patent number 9,559,253
- Issue date Jan 31, 2017
- Nichia Corporation
- Junya Narita
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Sapphire substrate having elongated projection and semiconductor li...
- Patent number 9,525,103
- Issue date Dec 20, 2016
- Nichia Corporation
- Junya Narita
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Semiconductor light emitting device with light extraction surface
- Patent number 9,490,393
- Issue date Nov 8, 2016
- Nichia Corporation
- Yohei Wakai
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Method for manufacturing semiconductor light emitting device
- Patent number 9,159,868
- Issue date Oct 13, 2015
- Nichia Corporation
- Yohei Wakai
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
LED sapphire substrate with groups of three projections on the surface
- Patent number 9,070,814
- Issue date Jun 30, 2015
- Nichia Corporation
- Junya Narita
- Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC
Information Patent Grant
Method for manufacturing substrate for semiconductor light emitting...
- Patent number 9,054,271
- Issue date Jun 9, 2015
- Nichia Corporation
- Shunsuke Minato
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Sapphire substrate having triangular projections with portions exte...
- Patent number 9,012,936
- Issue date Apr 21, 2015
- Nichia Corporation
- Junya Narita
- Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC
Information Patent Grant
Method for manufacturing semiconductor light emitting device
- Patent number 8,883,529
- Issue date Nov 11, 2014
- Nichia Corporation
- Yohei Wakai
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Sapphire substrate having triangular projections with bottom sides...
- Patent number 8,847,262
- Issue date Sep 30, 2014
- Nichia Corporation
- Junya Narita
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Sapphire substrate having triangular projections with outer perimet...
- Patent number 8,847,263
- Issue date Sep 30, 2014
- Nichia Corporation
- Junya Narita
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Sapphire substrate and nitride semiconductor light emitting device
- Patent number 8,779,463
- Issue date Jul 15, 2014
- Nichia Corporation
- Junya Narita
- C30 - CRYSTAL GROWTH
Information Patent Grant
Method for manufacturing substrate for semiconductor light emitting...
- Patent number 8,686,457
- Issue date Apr 1, 2014
- Nichia Corporation
- Shunsuke Minato
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Semiconductor light emitting device and method for manufacturing th...
- Patent number 8,552,445
- Issue date Oct 8, 2013
- Nichia Corporation
- Yohei Wakai
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Method for manufacturing substrate for semiconductor light emitting...
- Patent number 8,394,652
- Issue date Mar 12, 2013
- Nichia Corporation
- Shunsuke Minato
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Semiconductor light emitting element and method for manufacturing t...
- Patent number 8,236,591
- Issue date Aug 7, 2012
- Nichia Corporation
- Takashi Ichihara
- B82 - NANO-TECHNOLOGY
Information Patent Grant
Method for manufacturing substrate for semiconductor light emitting...
- Patent number 7,781,790
- Issue date Aug 24, 2010
- Nichia Corporation
- Shunsuke Minato
- H01 - BASIC ELECTRIC ELEMENTS

Patents Applicationslast 30 patents

Information Patent Application
SEMICONDUCTOR LIGHT EMITTING DEVICE
- Publication number 20160329465
- Publication date Nov 10, 2016
- Nichia Corporation.
- Yohei WAKAI
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
SAPPHIRE SUBSTRATE AND SEMICONDUCTOR LIGHT EMITTING DEVICE
- Publication number 20150270443
- Publication date Sep 24, 2015
- NICHIA CORPORATION
- Junya NARITA
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
METHOD OF MANUFACTURING NITRIDE SEMICONDUCTOR ELEMENT
- Publication number 20150118775
- Publication date Apr 30, 2015
- Nichia Corporation.
- Junya NARITA
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
METHOD FOR MANUFACTURING SEMICONDUCTOR LIGHT EMITTING DEVICE
- Publication number 20140370630
- Publication date Dec 18, 2014
- Yohei WAKAI
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
SAPPHIRE SUBSTRATE AND SEMICONDUCTOR LIGHT EMITTING DEVICE
- Publication number 20140306265
- Publication date Oct 16, 2014
- Junya NARITA
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
METHOD FOR MANUFACTURING SUBSTRATE FOR SEMICONDUCTOR LIGHT EMITTING...
- Publication number 20140124805
- Publication date May 8, 2014
- Nichia Corporation.
- Shunsuke Minato
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
Method for manufacturing semiconductor light emitting device
- Publication number 20140038328
- Publication date Feb 6, 2014
- Nichia Corporation.
- Yohei Wakai
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
SAPPHIRE SUBSTRATE AND SEMICONDUCTOR
- Publication number 20130285109
- Publication date Oct 31, 2013
- Junya NARITA
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
SAPPHIRE SUBSTRATE AND SEMICONDUCTOR LIGHT EMITTING DEVICE
- Publication number 20130270593
- Publication date Oct 17, 2013
- Junya NARITA
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
METHOD FOR MANUFACTURING SUBSTRATE FOR SEMICONDUCTOR LIGHT EMITTING...
- Publication number 20130146892
- Publication date Jun 13, 2013
- Nichia Corporation.
- Shunsuke Minato
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
SAPPHIRE SUBSTRATE AND SEMICONDUCTOR
- Publication number 20120074431
- Publication date Mar 29, 2012
- Nichia Corporation
- Junya NARITA
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
SAPPHIRE SUBSTRATE AND METHOD FOR MANUFACTURING THE SAME AND NITRID...
- Publication number 20110316041
- Publication date Dec 29, 2011
- Nichia Corporation
- Junya NARITA
- C30 - CRYSTAL GROWTH
Information Patent Application
SEMICONDUCTOR LIGHT EMITTING DEVICE AND METHOD FOR MANUFACTURING TH...
- Publication number 20100264443
- Publication date Oct 21, 2010
- NICHIA CORPORATION
- Yohei Wakai
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
METHOD FOR MANUFACTURING SUBSTRATE FOR SEMICONDUCTOR LIGHT EMITTING...
- Publication number 20100255621
- Publication date Oct 7, 2010
- Shunsuke MINATO
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
SEMICONDUCTOR LIGHT EMITTING ELEMENT AND METHOD FOR MANUFACTURING T...
- Publication number 20100187542
- Publication date Jul 29, 2010
- NICHIA CORPORATION
- Takashi Ichihara
- B82 - NANO-TECHNOLOGY
Information Patent Application
SEMICONDUCTOR LIGHT EMITTING DEVICE
- Publication number 20100072501
- Publication date Mar 25, 2010
- Nichia Corporation.
- Yohei WAKAI
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
Method for manufacturing substrate for semiconductor light emitting...
- Publication number 20080303042
- Publication date Dec 11, 2008
- Nichia Corporation.
- Shunsuke Minato
- H01 - BASIC ELECTRIC ELEMENTS

Yohei Wakai

Person

Patents Grantslast 30 patents

Semiconductor light emitting device having a recess with irregulari...

Method of manufacturing nitride semiconductor element

Sapphire substrate having elongated projection and semiconductor li...

Semiconductor light emitting device with light extraction surface

Method for manufacturing semiconductor light emitting device

LED sapphire substrate with groups of three projections on the surface

Method for manufacturing substrate for semiconductor light emitting...

Sapphire substrate having triangular projections with portions exte...

Method for manufacturing semiconductor light emitting device

Sapphire substrate having triangular projections with bottom sides...

Sapphire substrate having triangular projections with outer perimet...

Sapphire substrate and nitride semiconductor light emitting device

Method for manufacturing substrate for semiconductor light emitting...

Semiconductor light emitting device and method for manufacturing th...

Method for manufacturing substrate for semiconductor light emitting...

Semiconductor light emitting element and method for manufacturing t...

Method for manufacturing substrate for semiconductor light emitting...

Patents Applicationslast 30 patents

SEMICONDUCTOR LIGHT EMITTING DEVICE

SAPPHIRE SUBSTRATE AND SEMICONDUCTOR LIGHT EMITTING DEVICE

METHOD OF MANUFACTURING NITRIDE SEMICONDUCTOR ELEMENT

METHOD FOR MANUFACTURING SEMICONDUCTOR LIGHT EMITTING DEVICE

SAPPHIRE SUBSTRATE AND SEMICONDUCTOR LIGHT EMITTING DEVICE

METHOD FOR MANUFACTURING SUBSTRATE FOR SEMICONDUCTOR LIGHT EMITTING...

Method for manufacturing semiconductor light emitting device

SAPPHIRE SUBSTRATE AND SEMICONDUCTOR

SAPPHIRE SUBSTRATE AND SEMICONDUCTOR LIGHT EMITTING DEVICE

METHOD FOR MANUFACTURING SUBSTRATE FOR SEMICONDUCTOR LIGHT EMITTING...

SAPPHIRE SUBSTRATE AND SEMICONDUCTOR

SAPPHIRE SUBSTRATE AND METHOD FOR MANUFACTURING THE SAME AND NITRID...

SEMICONDUCTOR LIGHT EMITTING DEVICE AND METHOD FOR MANUFACTURING TH...

METHOD FOR MANUFACTURING SUBSTRATE FOR SEMICONDUCTOR LIGHT EMITTING...

SEMICONDUCTOR LIGHT EMITTING ELEMENT AND METHOD FOR MANUFACTURING T...

SEMICONDUCTOR LIGHT EMITTING DEVICE

Method for manufacturing substrate for semiconductor light emitting...