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Norio Oguchi
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Nagano-Ken, JP
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Patents Grants
last 30 patents
Information
Patent Grant
Method of manufacturing directional coupler
Patent number
7,582,233
Issue date
Sep 1, 2009
Seiko Epson Corporation
Tomoko Koyama
G02 - OPTICS
Information
Patent Grant
Light-emitting device and electronic instrument
Patent number
7,138,764
Issue date
Nov 21, 2006
Seiko Epson Corporation
Tomoko Koyama
H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information
Patent Grant
Organic semiconductor device
Patent number
6,870,182
Issue date
Mar 22, 2005
Seiko Epson Corporation
Tomoko Koyama
H01 - BASIC ELECTRIC ELEMENTS
Patents Applications
last 30 patents
Information
Patent Application
Method of manufacturing directional coupler
Publication number
20060174657
Publication date
Aug 10, 2006
SEIKO EPSON CORPORATION
Tomoko Koyama
G02 - OPTICS
Information
Patent Application
Directional coupler and optical communication device
Publication number
20030099438
Publication date
May 29, 2003
SEIKO EPSON CORPORATION
Tomoko Koyama
G02 - OPTICS
Information
Patent Application
Light-emitting device and electronic instrument
Publication number
20030094897
Publication date
May 22, 2003
SEIKO EPSON CORPORATION
Tomoko Koyama
H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information
Patent Application
Organic semiconductor device
Publication number
20030085398
Publication date
May 8, 2003
SEIKO EPSON CORPORATION
Tomoko Koyama
H01 - BASIC ELECTRIC ELEMENTS