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Yoshihiko Okajima
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Tokyo, JP
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Patents Grants
last 30 patents
Information
Patent Grant
Metal base circuit board
Patent number
8,449,143
Issue date
May 28, 2013
Denki Kagaku Kogyo Kabushiki Kaisha
Takeshi Miyakawa
H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information
Patent Grant
Metal base circuit board, LED, and LED light source unit
Patent number
8,071,882
Issue date
Dec 6, 2011
Denki Kagaku Kogyo Kabushiki Kaisha
Yoshihiko Okajima
F21 - LIGHTING
Patents Applications
last 30 patents
Information
Patent Application
METHOD FOR MANUFACTURING SUBSTRATE FOR LIGHT EMITTING ELEMENT PACKA...
Publication number
20110311831
Publication date
Dec 22, 2011
DENKI KAGAKU KOGYO KABUSHIKI KAISHA
Motohiro Suzuki
H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information
Patent Application
METHOD FOR MANUFACTURING SUBSTRATE FOR LIGHT EMITTING ELEMENT PACKA...
Publication number
20110284914
Publication date
Nov 24, 2011
DENKI KAGAKU KOGYO KABUSHIKI KAISHA
Motohiro Suzuki
H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information
Patent Application
METAL BASE CIRCUIT BOARD
Publication number
20100164362
Publication date
Jul 1, 2010
DENKI KAGAKU KOGYO KABUSHIKI KAISHA
Takeshi Miyakawa
H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information
Patent Application
LED LIGHT SOURCE UNIT
Publication number
20100027261
Publication date
Feb 4, 2010
Denki Kagaku Kogyo Kabushiki Kaisha
Katsunori Yashima
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Application
LED LIGHT SOURCE UNIT
Publication number
20090279300
Publication date
Nov 12, 2009
Denki Kagaku Kogyo Kabushiki Kaisha
Yoshihiko Okajima
F21 - LIGHTING
Information
Patent Application
METAL BASE CIRCUIT BOARD, LED, AND LED LIGHT SOURCE UNIT
Publication number
20090032295
Publication date
Feb 5, 2009
Denki Kagaku Kogyo Kabushiki Kaisha
Yoshihiko Okajima
F21 - LIGHTING