Koji Hirai

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Tokyo, JP

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Patents Grantslast 30 patents

Information Patent Grant
Video receiving apparatus and video receiving method
- Patent number 8,799,939
- Issue date Aug 5, 2014
- Sony Corporation
- Koji Hirai
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Image display device
- Patent number 8,098,259
- Issue date Jan 17, 2012
- Sony Corporation
- Yoshitake Kondo
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Cooling apparatus and projection type display device
- Patent number 7,606,640
- Issue date Oct 20, 2009
- Sony Corporation
- Koji Hirai
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Metal dome sheet, its manufacturing method, and metal dome system
- Patent number 6,917,007
- Issue date Jul 12, 2005
- Fujikura, Ltd.
- Koji Hirai
- H01 - BASIC ELECTRIC ELEMENTS

Patents Applicationslast 30 patents

Information Patent Application
Display apparatus
- Publication number 20090027575
- Publication date Jan 29, 2009
- SONY CORPORATION
- Jun Miyauchi
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Video receiving apparatus and video receiving method
- Publication number 20080129883
- Publication date Jun 5, 2008
- SONY CORPORATION
- Koji Hirai
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Cooling apparatus and projection type display device
- Publication number 20060145949
- Publication date Jul 6, 2006
- SONY CORPORATION
- Koji Hirai
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
Image display device
- Publication number 20060028483
- Publication date Feb 9, 2006
- Yoshitake Kondo
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Metal dome sheet, its manufacturing method, and metal dome system
- Publication number 20040234072
- Publication date Nov 25, 2004
- Koji Hirai
- H01 - BASIC ELECTRIC ELEMENTS