Tetsuya Ikuta

Person

Tokyo, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Semiconductor light-emitting device
- Patent number 11,996,496
- Issue date May 28, 2024
- Dowa Electronics Materials Co., Ltd.
- Jumpei Yamamoto
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Method of manufacturing semiconductor optical device and intermedia...
- Patent number 11,894,502
- Issue date Feb 6, 2024
- Dowa Electronics Materials Co., Ltd.
- Yuta Koshika
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Semiconductor light-emitting element
- Patent number 11,637,220
- Issue date Apr 25, 2023
- Dowa Electronics Materials Co., Ltd.
- Jumpei Yamamoto
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Semiconductor light-emitting element and method of manufacturing th...
- Patent number 11,515,448
- Issue date Nov 29, 2022
- Dowa Electronics Materials Co., Ltd.
- Jumpei Yamamoto
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Semiconductor light-emitting device and method of manufacturing the...
- Patent number 11,508,875
- Issue date Nov 22, 2022
- Dowa Electronics Materials Co., Ltd.
- Jumpei Yamamoto
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Method of manufacturing semiconductor optical device and semiconduc...
- Patent number 11,417,793
- Issue date Aug 16, 2022
- Dowa Electronics Materials Co., Ltd.
- Jumpei Yamamoto
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Semiconductor light-emitting device and method of manufacturing the...
- Patent number 11,205,739
- Issue date Dec 21, 2021
- Dowa Electronics Materials Co., Ltd.
- Jumpei Yamamoto
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Group III nitride epitaxial substrate and method for manufacturing...
- Patent number 10,727,303
- Issue date Jul 28, 2020
- Dowa Electronics Materials Co., Ltd.
- Tetsuya Ikuta
- C30 - CRYSTAL GROWTH
Information Patent Grant
Epitaxial substrate for electronic device and method of producing t...
- Patent number 10,388,517
- Issue date Aug 20, 2019
- Dowa Electronics Materials Co., Ltd.
- Tetsuya Ikuta
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Epitaxial growth substrate, semiconductor device, and epitaxial gro...
- Patent number 9,006,865
- Issue date Apr 14, 2015
- Dowa Electronics Materials Co., Ltd.
- Tetsuya Ikuta
- C30 - CRYSTAL GROWTH
Information Patent Grant
Epitaxial substrate for electronic device comprising a high resista...
- Patent number 8,946,863
- Issue date Feb 3, 2015
- Dowa Electronics Materials Co., Ltd.
- Tetsuya Ikuta
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Group III nitride epitaxial laminate substrate
- Patent number 8,847,203
- Issue date Sep 30, 2014
- Dowa Electronics Materials Co, Ltd.
- Tetsuya Ikuta
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Epitaxial substrate for electronic device, in which current flows i...
- Patent number 8,710,489
- Issue date Apr 29, 2014
- Dowa Electronics Materials Co., Ltd.
- Tetsuya Ikuta
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Light emitting device and method for producing same
- Patent number 8,469,760
- Issue date Jun 25, 2013
- Dowa Electronics Materials Co., Ltd.
- Tsukasa Maruyama
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Grant
Epitaxial substrate for electronic device and method of producing t...
- Patent number 8,426,893
- Issue date Apr 23, 2013
- Dowa Electronics Materials Co., Ltd.
- Tetsuya Ikuta
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Epitaxial substrate for electronic device and method of producing t...
- Patent number 8,410,472
- Issue date Apr 2, 2013
- Dowa Electronics Materials Co., Ltd.
- Tetsuya Ikuta
- C30 - CRYSTAL GROWTH
Information Patent Grant
Phosphor and manufacturing method for the same, and light source
- Patent number 8,308,981
- Issue date Nov 13, 2012
- Dowa Electronics Materials Co., Ltd.
- Akira Nagatomi
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Grant
Light-emitting device and manufacturing method thereof
- Patent number 8,253,326
- Issue date Aug 28, 2012
- Dowa Electronics Materials Co., Ltd.
- Tsukasa Maruyama
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Light-emitting device and manufacturing method thereof
- Patent number 8,164,254
- Issue date Apr 24, 2012
- Dowa Electronics Materials Co., Ltd.
- Tsukasa Maruyama
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Light emitting device and method for producing same
- Patent number 7,956,536
- Issue date Jun 7, 2011
- Dowa Electronics Materials Co., Ltd.
- Tsukasa Maruyama
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Grant
Light emitting device and method for producing same
- Patent number 7,878,876
- Issue date Feb 1, 2011
- Dowa Electronics Materials Co., Ltd.
- Tsukasa Maruyama
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Grant
Light-emitting device and manufacturing method thereof
- Patent number 7,812,516
- Issue date Oct 12, 2010
- Dowa Electronics Materials Co., Ltd.
- Tsukasa Maruyama
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Phosphor and manufacturing method for the same, and light source
- Patent number 7,803,286
- Issue date Sep 28, 2010
- Dowa Electronics Materials Co., Ltd.
- Kenji Sakane
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Grant
Phosphor and manufacturing method for the same, and light source
- Patent number 7,476,338
- Issue date Jan 13, 2009
- Dowa Electronics Materials Co., Ltd.
- Kenji Sakane
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Phosphor and manufacturing method for the same, and light emitting...
- Patent number 7,476,336
- Issue date Jan 13, 2009
- Dowa Electronics Materials Co., Ltd.
- Akira Nagatomi
- H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR

Patents Applicationslast 30 patents

Information Patent Application
SEMICONDUCTOR LIGHT-EMITTING ELEMENT
- Publication number 20230114703
- Publication date Apr 13, 2023
- DOWA ELECTRONICS MATERIALS CO., LTD.
- Jumpei YAMAMOTO
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
SEMICONDUCTOR LIGHT-EMITTING DEVICE
- Publication number 20230079138
- Publication date Mar 16, 2023
- DOWA Electronics Materials Co., Ltd.
- Jumpei YAMAMOTO
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
SEMICONDUCTOR LIGHT-EMITTING ELEMENT AND METHOD OF MANUFACTURING TH...
- Publication number 20210167249
- Publication date Jun 3, 2021
- DOWA ELECTRONICS MATERIALS CO., LTD.
- Jumpei YAMAMOTO
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
METHOD OF MANUFACTURING SEMICONDUCTOR OPTICAL DEVICE AND INTERMEDIA...
- Publication number 20210020814
- Publication date Jan 21, 2021
- DOWA ELECTRONICS MATERIALS CO., LTD.
- Yuta KOSHIKA
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
SEMICONDUCTOR LIGHT-EMITTING DEVICE AND METHOD OF MANUFACTURING THE...
- Publication number 20200381589
- Publication date Dec 3, 2020
- DOWA Electronics Materials Co., Ltd.
- Jumpei YAMAMOTO
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
METHOD OF MANUFACTURING SEMICONDUCTOR OPTICAL DEVICE AND SEMICONDUC...
- Publication number 20200227585
- Publication date Jul 16, 2020
- DOWA Electronics Materials Co., Ltd.
- Jumpei YAMAMOTO
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
SEMICONDUCTOR LIGHT-EMITTING DEVICE AND METHOD OF MANUFACTURING THE...
- Publication number 20200020828
- Publication date Jan 16, 2020
- DOWA Electronics Materials Co., Ltd.
- Jumpei YAMAMOTO
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
METHOD OF MANUFACTURING SEMICONDUCTOR OPTICAL DEVICE AND SEMICONDUC...
- Publication number 20190207055
- Publication date Jul 4, 2019
- DOWA Electronics Materials Co., Ltd.
- Jumpei YAMAMOTO
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
III NITRIDE EPITAXIAL SUBSTRATE AND METHOD OF PRODUCING THE SAME
- Publication number 20150340230
- Publication date Nov 26, 2015
- Tetsuya IKUTA
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
GROUP III NITRIDE EPITAXIAL SUBSTRATE AND METHOD FOR MANUFACTURING...
- Publication number 20140209862
- Publication date Jul 31, 2014
- DOWA ELECTRONICS MATERIALS CO., LTD.
- Tetsuya Ikuta
- C30 - CRYSTAL GROWTH
Information Patent Application
EPITAXIAL GROWTH SUBSTRATE, SEMICONDUCTOR DEVICE, AND EPITAXIAL GRO...
- Publication number 20130087807
- Publication date Apr 11, 2013
- DOWA ELECTRONICS MATERIALS CO., LTD.
- Tetsuya Ikuta
- C30 - CRYSTAL GROWTH
Information Patent Application
EPITAXIAL SUBSTRATE FOR ELECTRONIC DEVICE AND METHOD OF PRODUCING T...
- Publication number 20120273759
- Publication date Nov 1, 2012
- DOWA ELECTRONICS MATERIALS CO., LTD.
- Tetsuya Ikuta
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
GROUP III NITRIDE EPITAXIAL LAMINATE SUBSTRATE
- Publication number 20120223328
- Publication date Sep 6, 2012
- DOWA ELECTRONICS MATERIALS CO., LTD.
- Tetsuya Ikuta
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
EPITAXIAL SUBSTRATE FOR ELECTRONIC DEVICE, IN WHICH CURRENT FLOWS I...
- Publication number 20120168719
- Publication date Jul 5, 2012
- DOWA ELECTRONICS MATERIALS CO., LTD.
- Tetsuya Ikuta
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
EPITAXIAL SUBSTRATE FOR ELECTRONIC DEVICE AND METHOD OF PRODUCING T...
- Publication number 20120153440
- Publication date Jun 21, 2012
- DOWA ELECTRONICS MATERIALS CO., LTD.
- Tetsuya Ikuta
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
EPITAXIAL SUBSTRATE FOR ELECTRONIC DEVICE AND METHOD OF PRODUCING T...
- Publication number 20120091435
- Publication date Apr 19, 2012
- DOWA ELECTRONICS MATERIALS CO., LTD.
- Tetsuya Ikuta
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
EPITAXIAL SUBSTRATE FOR ELECTRONIC DEVICE AND METHOD OF PRODUCING T...
- Publication number 20110298009
- Publication date Dec 8, 2011
- DOWA ELECTRONICS MATERIALS CO., LTD.
- Tetsuya Ikuta
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
EPITAXIAL SUBSTRATE FOR ELECTRONIC DEVICE AND METHOD OF PRODUCING T...
- Publication number 20110240962
- Publication date Oct 6, 2011
- DOWA ELECTRONICS MATERIALS CO., LTD.
- Tetsuya Ikuta
- C30 - CRYSTAL GROWTH
Information Patent Application
Light-emitting device and manufacturing method thereof
- Publication number 20100289405
- Publication date Nov 18, 2010
- DOWA ELECTRONICS MATERIALS CO., LTD.
- Tsukasa MARUYAMA
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
Phosphor and manufacturing method for the same, and light source
- Publication number 20100258766
- Publication date Oct 14, 2010
- DOWA ELECTRONICS MATERIALS CO., LTD.
- Kenji Sakane
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Application
LIGHT EMITTING DEVICE AND METHOD FOR PRODUCING SAME
- Publication number 20100013375
- Publication date Jan 21, 2010
- DOWA ELECTRONICS MATERIALS CO., LTD.
- Tsukasa Maruyama
- H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information Patent Application
LIGHT EMITTING DEVICE AND METHOD FOR PRODUCING SAME
- Publication number 20100013374
- Publication date Jan 21, 2010
- DOWA ELECTRONICS MATERIALS CO., LTD.
- Tsukasa Maruyama
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Application
Phosphor and manufacturing method for the same, and light source
- Publication number 20090109652
- Publication date Apr 30, 2009
- DOWA ELECTRONICS MATERIALS CO., LTD.
- Kenji Sakane
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Application
Light-emitting device and manufacturing method thereof
- Publication number 20080150416
- Publication date Jun 26, 2008
- DOWA ELECTRONICS MATERIALS CO., LTD.
- Tsukasa MARUYAMA
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
Light-emitting device and manufacturing method thereof
- Publication number 20080122343
- Publication date May 29, 2008
- DOWA ELECTRONICS MATERIALS CO., LTD.
- Tsukasa MARUYAMA
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
LIGHT EMITTING DEVICE AND METHOD FOR PRODUCING SAME
- Publication number 20070228933
- Publication date Oct 4, 2007
- DOWA ELECTRONICS MATERIALS CO., LTD.
- Tsukasa Maruyama
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Application
LIGHT EMITTING DEVICE AND METHOD FOR PRODUCING SAME
- Publication number 20070228949
- Publication date Oct 4, 2007
- DOWA ELECTRONICS MATERIALS CO., LTD.
- Tsukasa Maruyama
- H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information Patent Application
Phosphor and manufacturing method for the same, and light emitting...
- Publication number 20060244356
- Publication date Nov 2, 2006
- DOWA MINING CO., LTD.
- Akira Nagatomi
- H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information Patent Application
Phosphor and manufacturing method for the same, and light source
- Publication number 20060065878
- Publication date Mar 30, 2006
- DOWA MINING CO., LTD.
- Kenji Sakane
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...

Tetsuya Ikuta

Person

Patents Grantslast 30 patents

Semiconductor light-emitting device

Method of manufacturing semiconductor optical device and intermedia...

Semiconductor light-emitting element

Semiconductor light-emitting element and method of manufacturing th...

Semiconductor light-emitting device and method of manufacturing the...

Method of manufacturing semiconductor optical device and semiconduc...

Semiconductor light-emitting device and method of manufacturing the...

Group III nitride epitaxial substrate and method for manufacturing...

Epitaxial substrate for electronic device and method of producing t...

Epitaxial growth substrate, semiconductor device, and epitaxial gro...

Epitaxial substrate for electronic device comprising a high resista...

Group III nitride epitaxial laminate substrate

Epitaxial substrate for electronic device, in which current flows i...

Light emitting device and method for producing same

Epitaxial substrate for electronic device and method of producing t...

Epitaxial substrate for electronic device and method of producing t...

Phosphor and manufacturing method for the same, and light source

Light-emitting device and manufacturing method thereof

Light-emitting device and manufacturing method thereof

Light emitting device and method for producing same

Light emitting device and method for producing same

Light-emitting device and manufacturing method thereof

Phosphor and manufacturing method for the same, and light source

Phosphor and manufacturing method for the same, and light source

Phosphor and manufacturing method for the same, and light emitting...

Patents Applicationslast 30 patents

SEMICONDUCTOR LIGHT-EMITTING ELEMENT

SEMICONDUCTOR LIGHT-EMITTING DEVICE

SEMICONDUCTOR LIGHT-EMITTING ELEMENT AND METHOD OF MANUFACTURING TH...

METHOD OF MANUFACTURING SEMICONDUCTOR OPTICAL DEVICE AND INTERMEDIA...

SEMICONDUCTOR LIGHT-EMITTING DEVICE AND METHOD OF MANUFACTURING THE...

METHOD OF MANUFACTURING SEMICONDUCTOR OPTICAL DEVICE AND SEMICONDUC...

SEMICONDUCTOR LIGHT-EMITTING DEVICE AND METHOD OF MANUFACTURING THE...

METHOD OF MANUFACTURING SEMICONDUCTOR OPTICAL DEVICE AND SEMICONDUC...

III NITRIDE EPITAXIAL SUBSTRATE AND METHOD OF PRODUCING THE SAME

GROUP III NITRIDE EPITAXIAL SUBSTRATE AND METHOD FOR MANUFACTURING...

EPITAXIAL GROWTH SUBSTRATE, SEMICONDUCTOR DEVICE, AND EPITAXIAL GRO...

EPITAXIAL SUBSTRATE FOR ELECTRONIC DEVICE AND METHOD OF PRODUCING T...

GROUP III NITRIDE EPITAXIAL LAMINATE SUBSTRATE

EPITAXIAL SUBSTRATE FOR ELECTRONIC DEVICE, IN WHICH CURRENT FLOWS I...

EPITAXIAL SUBSTRATE FOR ELECTRONIC DEVICE AND METHOD OF PRODUCING T...

EPITAXIAL SUBSTRATE FOR ELECTRONIC DEVICE AND METHOD OF PRODUCING T...

EPITAXIAL SUBSTRATE FOR ELECTRONIC DEVICE AND METHOD OF PRODUCING T...

EPITAXIAL SUBSTRATE FOR ELECTRONIC DEVICE AND METHOD OF PRODUCING T...

Light-emitting device and manufacturing method thereof

Phosphor and manufacturing method for the same, and light source

LIGHT EMITTING DEVICE AND METHOD FOR PRODUCING SAME

LIGHT EMITTING DEVICE AND METHOD FOR PRODUCING SAME

Phosphor and manufacturing method for the same, and light source

Light-emitting device and manufacturing method thereof

Light-emitting device and manufacturing method thereof

LIGHT EMITTING DEVICE AND METHOD FOR PRODUCING SAME

LIGHT EMITTING DEVICE AND METHOD FOR PRODUCING SAME

Phosphor and manufacturing method for the same, and light emitting...

Phosphor and manufacturing method for the same, and light source