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Yu Tokunaga
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Chichibu-shi, JP
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Patents Grants
last 30 patents
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Patent Grant
Light-emitting diode and method of manufacturing same
Patent number
9,741,913
Issue date
Aug 22, 2017
Showa Denko K.K.
Yu Tokunaga
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Light-emitting diode, light-emitting diode lamp, and illumination d...
Patent number
9,705,043
Issue date
Jul 11, 2017
Showa Denko K.K.
Atsushi Matsumura
H01 - BASIC ELECTRIC ELEMENTS
Patents Applications
last 30 patents
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Patent Application
LIGHT-EMITTING DIODE, LIGHT-EMITTING DIODE LAMP, AND ILLUMINATION D...
Publication number
20150255680
Publication date
Sep 10, 2015
SHOWA DENKO K.K.
Atsushi Matsumura
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
LIGHT-EMITTING DIODE AND METHOD OF MANUFACTURING SAME
Publication number
20140183588
Publication date
Jul 3, 2014
Showa Denko K.K.
Yu Tokunaga
H01 - BASIC ELECTRIC ELEMENTS