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Minoru Sakamoto
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Yamanashi, JP
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Patents Grants
last 30 patents
Information
Patent Grant
Lithography mask blank
Patent number
7,781,125
Issue date
Aug 24, 2010
Hoya Corporation
Masao Ushida
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Halftone type phase shift mask blank and halftone type phase shift...
Patent number
7,611,808
Issue date
Nov 3, 2009
Hoya Corporation
Masao Ushida
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Halftone type phase shift mask blank and halftone type phase shift...
Patent number
7,166,392
Issue date
Jan 23, 2007
Hoya Corporation
Masao Ushida
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Patents Applications
last 30 patents
Information
Patent Application
Photomask Blank, Photomask Manufacturing Method and Semiconductor D...
Publication number
20080305406
Publication date
Dec 11, 2008
HOYA CORPORATION
Atsushi Kominato
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
Halftone type phase shift mask blank and halftone type phase shift...
Publication number
20070134568
Publication date
Jun 14, 2007
Hoya Corporation
Masao Ushida
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
Lithography mask blank
Publication number
20050250018
Publication date
Nov 10, 2005
Masao Ushida
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
Halftone type phase shift mask blank and halftone type phase shift...
Publication number
20030219654
Publication date
Nov 27, 2003
Hoya Corporation
Masao Ushida
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY