Masaru Kawabata

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Tokyo, JP

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Patents Grantslast 30 patents

Information Patent Grant
Electric dimming device and its driving method
- Patent number 7,230,598
- Issue date Jun 12, 2007
- Sony Corporation
- Masaru Kawabata
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Guest-host liquid crystal element with removable polarizer
- Patent number 7,057,683
- Issue date Jun 6, 2006
- Sony Corporation
- Toru Udaka
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Guest-host liquid crystal element with removable polarizer
- Patent number 6,876,412
- Issue date Apr 5, 2005
- Sony Corporation
- Toru Udaka
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Liquid crystal display having liquid crystal cell gap variation
- Patent number 6,791,657
- Issue date Sep 14, 2004
- Sony Corporation
- Toshiharu Yanagida
- G02 - OPTICS
Information Patent Grant
Light control device, method for driving same and pickup device usi...
- Patent number 6,720,742
- Issue date Apr 13, 2004
- Toshiharu Yanagida
- G02 - OPTICS
Information Patent Grant
Optical device and its manufacturing method
- Patent number 6,219,173
- Issue date Apr 17, 2001
- Sony Corporation
- Tooru Udaka
- G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS

Patents Applicationslast 30 patents

Information Patent Application
Imaging device and an imaging apparatus including the imaging device
- Publication number 20080170299
- Publication date Jul 17, 2008
- SONY CORPORATION
- Masaru Kawabata
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Imaging device and portable terminal device
- Publication number 20050270411
- Publication date Dec 8, 2005
- SONY CORPORATION
- Masaru Kawabata
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Light control device and imaging device
- Publication number 20050078265
- Publication date Apr 14, 2005
- Sony Corporation
- Toru Udaka
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Light control device and imaging device
- Publication number 20040012753
- Publication date Jan 22, 2004
- Toru Udaka
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Electric dimming device and its driving method
- Publication number 20030189677
- Publication date Oct 9, 2003
- Masaru Kawabata
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Light control device and pickup device using the same
- Publication number 20020097369
- Publication date Jul 25, 2002
- Toshiharu Yanagida
- G02 - OPTICS
Information Patent Application
Light control device, method for driving same and pickup device usi...
- Publication number 20020079847
- Publication date Jun 27, 2002
- Toshiharu Yanagida
- G02 - OPTICS