Ryuichi Yokoyama

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Yokohama-shi, JP

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Patents Grantslast 30 patents

Information Patent Grant
Light transmissive stamper
- Patent number 7,819,653
- Issue date Oct 26, 2010
- Canon Kabushiki Kaisha
- Ryuichi Yokoyama
- G11 - INFORMATION STORAGE
Information Patent Grant
Color filter and method of manufacturing the same
- Patent number 6,309,783
- Issue date Oct 30, 2001
- Canon Kabushiki Kaisha
- Shoji Shiba
- G02 - OPTICS
Information Patent Grant
Color filter manufacturing method, color filter, display apparatus,...
- Patent number 6,177,214
- Issue date Jan 23, 2001
- Canon Kabushiki Kaisha
- Ryuichi Yokoyama
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
Color filter substrate manufacturing method, color filter substrate...
- Patent number 6,143,450
- Issue date Nov 7, 2000
- Canon Kabushiki Kaisha
- Masashi Sobue
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
Production of color filter by forming light-screening layer and irr...
- Patent number 6,127,072
- Issue date Oct 3, 2000
- Canon Kabushiki Kaisha
- Shoji Shiba
- G02 - OPTICS
Information Patent Grant
Optical recording medium and process for producing same
- Patent number 5,714,222
- Issue date Feb 3, 1998
- Canon Kabushiki Kaisha
- Ryuichi Yokoyama
- G11 - INFORMATION STORAGE

Patents Applicationslast 30 patents

Information Patent Application
LIGHT TRANSMISSIVE STAMPER
- Publication number 20080286401
- Publication date Nov 20, 2008
- Canon Kabushiki Kaisha
- Ryuichi Yokoyama
- G11 - INFORMATION STORAGE
Information Patent Application
OPTICAL RECORDING MEDIUM AND METHOD OF PRODUCING THE SAME
- Publication number 20070259288
- Publication date Nov 8, 2007
- Canon Kabushiki Kaisha
- Ryuichi Yokoyama
- G11 - INFORMATION STORAGE
Information Patent Application
METHOD FOR MANUFACTURING OPTICAL RECORDING MEDIUM
- Publication number 20070037092
- Publication date Feb 15, 2007
- Canon Kabushiki Kaisha
- Masahito Konishi
- G11 - INFORMATION STORAGE
Information Patent Application
Optical recording medium and manufacturing method thereof
- Publication number 20060180271
- Publication date Aug 17, 2006
- Canon Kabushiki Kaisha
- Ryuichi Yokoyama
- B32 - LAYERED PRODUCTS
Information Patent Application
COLOR FILTER AND METHOD OF MANUFACTURING THE SAME
- Publication number 20020001762
- Publication date Jan 3, 2002
- SHOJI SHIBA
- G02 - OPTICS