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Patents Grants
last 30 patents
Information
Patent Grant
Gradated photomask and its fabrication process
Patent number
8,124,301
Issue date
Feb 28, 2012
Dai Nippon Printing Co., Ltd.
Junji Fujikawa
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Halftone phase shift photomask and blank for halftone phase shift p...
Patent number
6,869,736
Issue date
Mar 22, 2005
Dai Nippon Printing Co., Ltd.
Hiro-o Nakagawa
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Halftone phase shifting photomask and blanks for halftone phase shi...
Patent number
6,780,547
Issue date
Aug 24, 2004
Dainippon Printing Co., Ltd.
Toshiaki Motonaga
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Halftone phase shift photomask and blanks for halftone phase shift...
Patent number
6,764,792
Issue date
Jul 20, 2004
Dai Nippon Printing Co., Ltd.
Junji Fujikawa
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Photomask
Patent number
6,740,455
Issue date
May 25, 2004
Dainippon Printing Co., Ltd.
Kenji Noguchi
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Halftone phase shift photomask and blank for halftone phase shift p...
Patent number
6,599,667
Issue date
Jul 29, 2003
Dai Nippon Printing Co., Ltd.
Satoshi Yusa
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Blank for halftone phase shift photomask and halftone phase shift p...
Patent number
6,458,496
Issue date
Oct 1, 2002
Dai Nippon Printing Co., Ltd.
Toshiaki Motonaga
B32 - LAYERED PRODUCTS
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
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
Patents Applications
last 30 patents
Information
Patent Application
GRADATED PHOTOMASK AND ITS FABRICATION PROCESS
Publication number
20090220867
Publication date
Sep 3, 2009
DAI NIPPON PRINTING CO., LTD.
Junji Fujikawa
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
Halftone phase shift photomask and blank for halftone phase shift p...
Publication number
20030186135
Publication date
Oct 2, 2003
Hiro-o Nakagawa
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
Photomask
Publication number
20020119379
Publication date
Aug 29, 2002
Kenji Noguchi
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
Halftone phase shift photomask and blank for halftone phase shift p...
Publication number
20020039689
Publication date
Apr 4, 2002
Satoshi Yusa
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
Halftone phase shifting photomask and blanks for halftone phase shi...
Publication number
20020015187
Publication date
Feb 7, 2002
Toshiaki Motonaga
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
Blank for halftone phase shift photomask and halftone phase shift p...
Publication number
20010005564
Publication date
Jun 28, 2001
Toshiaki Motonaga
B32 - LAYERED PRODUCTS