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Yukio Iimura
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Tokyo, JP
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Patents Grants
last 30 patents
Information
Patent Grant
Transfer mask blank, transfer mask, and transfer method using the t...
Patent number
7,582,393
Issue date
Sep 1, 2009
Dai Nippon Printing Co., Ltd.
Hisatake Sano
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Method of manufacturing wireless suspension blank
Patent number
6,942,817
Issue date
Sep 13, 2005
Dainippon Printing Co., Ltd.
Hiroshi Yagi
G11 - INFORMATION STORAGE
Information
Patent Grant
Blanks for halftone phase shift photomasks, halftone phase shift ph...
Patent number
5,721,075
Issue date
Feb 24, 1998
Dai Nippon Printing Co., Ltd.
Keiji Hashimoto
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Phase shift photomask, phase shift photomask blank, and process for...
Patent number
5,702,847
Issue date
Dec 30, 1997
Dai Nippon Printing Co., Ltd.
Norihiro Tarumoto
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Blanks for halftone phase shift photomasks, halftone phase shift ph...
Patent number
5,614,335
Issue date
Mar 25, 1997
Dai Nippon Printing Co., Ltd.
Keiji Hashimoto
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Chromium blanks for forming black matrix-screen and color filter fo...
Patent number
5,592,317
Issue date
Jan 7, 1997
Dai Nippon Printing Co., Ltd.
Junji Fujikawa
G02 - OPTICS
Information
Patent Grant
Halftone phase shift photomask, halftone phase shift photomask blan...
Patent number
5,538,816
Issue date
Jul 23, 1996
Dai Nippon Printing Co., Ltd.
Keiji Hashimoto
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Photomask blank and phase shift photomask
Patent number
5,419,988
Issue date
May 30, 1995
Dai Nippon Printing Co., Ltd.
Hiroshi Mohri
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Patents Applications
last 30 patents
Information
Patent Application
Transfer mask blank, transfer mask, and transfer method using the t...
Publication number
20060068298
Publication date
Mar 30, 2006
Hisatake Sano
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
Method of manufacturing wireless suspension blank
Publication number
20020027127
Publication date
Mar 7, 2002
Hiroshi Yagi
G11 - INFORMATION STORAGE