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Koji Choki
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Tokyo, JP
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Patents Grants
last 30 patents
Information
Patent Grant
Optical waveguide and optical waveguide manufacturing member
Patent number
8,774,575
Issue date
Jul 8, 2014
Sumitomo Bakelite Company Limited
Makoto Fujiwara
G02 - OPTICS
Information
Patent Grant
Optical waveguide film, laminated type optical waveguide film, opti...
Patent number
8,705,925
Issue date
Apr 22, 2014
Sumitomo Bakelite Company Limited
Shinsuke Terada
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Electronic apparatus, cellular phone, flexible cable and method for...
Patent number
8,588,566
Issue date
Nov 19, 2013
Sumitomo Bakelite Co., Ltd.
Mutsuhiro Matsuyama
H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information
Patent Grant
Optical waveguides and methods thereof
Patent number
8,420,293
Issue date
Apr 16, 2013
Sumitomo Bakelite Co., Ltd.
Koji Choki
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Substrate for mounting an optical element, optical circuit substrat...
Patent number
8,208,769
Issue date
Jun 26, 2012
Sumitomo Bakelite Co., Ltd.
Koji Choki
H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information
Patent Grant
Light guide and light guide structure
Patent number
8,200,058
Issue date
Jun 12, 2012
Sumitomo Bakelite Company, Ltd.
Koji Choki
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Optical waveguides and methods thereof
Patent number
8,053,166
Issue date
Nov 8, 2011
Sumitomo Bakelite Co. Ltd.
Koji Choki
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Optical waveguides and methods thereof
Patent number
8,021,825
Issue date
Sep 20, 2011
Sumitomo Bakelite Co., Ltd.
Koji Choki
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Substrate for mounting an optical element, optical circuit substrat...
Patent number
7,869,670
Issue date
Jan 11, 2011
Sumitomo Bakelite Co., Ltd.
Koji Choki
H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information
Patent Grant
Optical waveguides and methods thereof
Patent number
7,820,356
Issue date
Oct 26, 2010
Sumitomo Bakelite Co. Ltd.
Koji Choki
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Magnetic card having embossed portions and a magnetic layer having...
Patent number
5,356,717
Issue date
Oct 18, 1994
Sumitomo Bakelite Company Limited
Koji Choki
G06 - COMPUTING CALCULATING COUNTING
Patents Applications
last 30 patents
Information
Patent Application
OPTICAL WAVEGUIDES AND METHODS THEREOF
Publication number
20120064458
Publication date
Mar 15, 2012
PROMERUS, LLC
Koji CHOKI
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Application
OPTICAL WAVEGUIDE AND OPTICAL WAVEGUIDE MANUFACTURING MEMBER
Publication number
20110243499
Publication date
Oct 6, 2011
SUMITOMO BAKELITE COMPANY LIMITED
Makoto Fujiwara
G02 - OPTICS
Information
Patent Application
OPTICAL WAVEGUIDE, OPTICAL WIRING LINE, OPTICAL/ELECTRICAL COMBINAT...
Publication number
20110158596
Publication date
Jun 30, 2011
SUMITOMO BAKELITE CO., LTD.
Shinsuke Terada
G02 - OPTICS
Information
Patent Application
OPTICAL WAVEGUIDE FILM, LAMINATED TYPE OPTICAL WAVEGUIDE FILM, OPTI...
Publication number
20110110623
Publication date
May 12, 2011
SUMITOMO BAKELITE COMPANY LIMITED
Shinsuke Terada
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Application
ELECTRONIC APPARATUS, CELLULAR PHONE, FLEXIBLE CABLE AND METHOD FOR...
Publication number
20110085771
Publication date
Apr 14, 2011
SUMITOMO BAKELITE CO., LTD.
Mutsuhiro Matsuyama
G02 - OPTICS
Information
Patent Application
SUBSTRATE FOR MOUNTING AN OPTICAL ELEMENT, OPTICAL CIRCUIT SUBSTRAT...
Publication number
20100226606
Publication date
Sep 9, 2010
SUMITOMO BAKELITE CO., LTD.
Koji CHOKI
G02 - OPTICS
Information
Patent Application
LIGHT GUIDE AND LIGHT GUIDE STRUCTURE
Publication number
20100067861
Publication date
Mar 18, 2010
SUMITOMO BAKELITE COMPANY LIMITED
Koji Choki
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Application
OPTICAL WAVEGUIDES AND METHODS THEREOF
Publication number
20100062378
Publication date
Mar 11, 2010
SUMITOMO BAKELITE CO., LTD.
Koji Choki
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Application
OPTICAL WAVEGUIDES AND METHODS THEREOF
Publication number
20100061688
Publication date
Mar 11, 2010
SUMITOMO BAKELITE CO., LTD.
Koji Choki
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Application
OPTICAL ELEMENT MOUNTING BOARD, OPTICAL CIRCUIT BOARD AND OPTICAL E...
Publication number
20090245720
Publication date
Oct 1, 2009
SUMITOMO BAKELITE CO.,LTD.
Koji Choki
G02 - OPTICS
Information
Patent Application
Optical waveguides and methods thereof
Publication number
20070148566
Publication date
Jun 28, 2007
SUMITOMO BAKELITE CO., LTD.
Koji Choki
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...