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Hatsuo Takezawa
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Yokohama, JP
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Patents Grants
last 30 patents
Information
Patent Grant
Semiconductor light emitting device having mixed light emission
Patent number
7,884,544
Issue date
Feb 8, 2011
Kabushiki Kaisha Toshiba
Hatsuo Takezawa
B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information
Patent Grant
Lens-equipped light-emitting diode device having an integrally mold...
Patent number
7,378,647
Issue date
May 27, 2008
Kabushiki Kaisha Toshiba
Shouichi Nishikawa
B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information
Patent Grant
Semiconductor light emitting device and semiconductor light emittin...
Patent number
7,291,866
Issue date
Nov 6, 2007
Kabushiki Kaisha Toshiba
Hiroaki Oshio
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Duplex optical communication module unit
Patent number
4,695,858
Issue date
Sep 22, 1987
Tokyo Shibaura Denki Kabushiki Kaisha
Hatsuo Takezawa
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Duplex optical communication device
Patent number
4,625,333
Issue date
Nov 25, 1986
Tokyo Shibaura Denki Kabushiki Kaisha
Hatsuo Takezawa
G02 - OPTICS
Patents Applications
last 30 patents
Information
Patent Application
OPTICAL DEVICE
Publication number
20120146074
Publication date
Jun 14, 2012
Kabushiki Kaisha Toshiba
Yoshio Ariizumi
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
SEMICONDUCTOR LIGHT-EMITTING DEVICE
Publication number
20080303044
Publication date
Dec 11, 2008
Kabushiki Kaisha Toshiba
Tatsuoki Kohno
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
SEMICONDUCTOR LIGHT-EMITTING DEVICE
Publication number
20080297047
Publication date
Dec 4, 2008
Kabushiki Kaisha Toshiba
Tatsuoki Kohno
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
LENS-EQUIPPED LIGHT-EMITTING DIODE DEVICE AND METHOD OF MANUFACTURI...
Publication number
20070145255
Publication date
Jun 28, 2007
Shouichi Nishikawa
B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information
Patent Application
Semiconductor light emitting device
Publication number
20070090381
Publication date
Apr 26, 2007
KABUSHIKI KAISHA TOSHIBA
Kazuaki Otsuka
C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information
Patent Application
Semiconductor Light Emitting Device
Publication number
20070057618
Publication date
Mar 15, 2007
Kazuaki Otsuka
C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information
Patent Application
Semiconductor light emitting device
Publication number
20060157722
Publication date
Jul 20, 2006
Kabushiki Kaisha Toshiba
Hatsuo Takezawa
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
Semiconductor light emitting device
Publication number
20060076569
Publication date
Apr 13, 2006
Kabushiki Kaisha Toshiba
Kazuaki Otsuka
C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information
Patent Application
Semiconductor light emitting device
Publication number
20060071591
Publication date
Apr 6, 2006
KABUSHIKI KAISHA TOSHIBA
Hatsuo Takezawa
B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information
Patent Application
Semiconductor light emitting device and semiconductor light emittin...
Publication number
20050280017
Publication date
Dec 22, 2005
KABUSHIKI KAISHA TOSHIBA
Hiroaki Oshio
H01 - BASIC ELECTRIC ELEMENTS