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Patents Grants
last 30 patents
Information
Patent Grant
Photomask and methods for manufacturing and correcting photomask
Patent number
10,634,990
Issue date
Apr 28, 2020
Dai Nippon Printing Co., Ltd.
Takaharu Nagai
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Photomask and methods for manufacturing and correcting photomask
Patent number
10,394,118
Issue date
Aug 27, 2019
Dai Nippon Printing Co., Ltd.
Takaharu Nagai
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Photomask and methods for manufacturing and correcting photomask
Patent number
10,048,580
Issue date
Aug 14, 2018
Dai Nippon Printing Co., Ltd.
Takaharu Nagai
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Photomask and methods for manufacturing and correcting photomask
Patent number
9,519,211
Issue date
Dec 13, 2016
Dai Nippon Printing Co., Ltd.
Takaharu Nagai
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Photomask and methods for manufacturing and correcting photomask
Patent number
8,974,987
Issue date
Mar 10, 2015
Dai Nippon Printing Co., Ltd.
Takaharu Nagai
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
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 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
Halftone phase shift photomask and blanks for halftone phase shift...
Patent number
6,709,791
Issue date
Mar 23, 2004
Dai Nippon Printing Co., Ltd.
Hiroshi Mohri
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Method for recording and reproducing information, apparatus therefo...
Patent number
6,493,013
Issue date
Dec 10, 2002
Dainippon Printing Co., Ltd.
Hiroyuki Obata
G06 - COMPUTING CALCULATING COUNTING
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
Color imaging system with selectively openable optical shutter
Patent number
5,983,057
Issue date
Nov 9, 1999
Dai Nippon Printing Co. Ltd
Makoto Matsuo
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Phase shift mask and method of producing the same
Patent number
5,972,543
Issue date
Oct 26, 1999
Dai Nippon Printing Co., Ltd.
Toshifumi Yokoyama
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Halftone phase shift photomask, halftone phase shift photomask blan...
Patent number
5,916,712
Issue date
Jun 29, 1999
Dai Nippon Printing Co., Ltd.
Hiroyuki Miyashita
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Phase shift mask and method of producing the same
Patent number
5,811,208
Issue date
Sep 22, 1998
Dai Nippon Printing Co., Ltd.
Toshifumi Yokoyama
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Halftone phase shift photomask, halftone phase shift photomask blan...
Patent number
5,738,959
Issue date
Apr 14, 1998
Dai Nippon Printing Co., Ltd.
Hiroyuki Miyashita
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
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
Method for recording and reproducing information, apparatus therefo...
Patent number
5,638,103
Issue date
Jun 10, 1997
Dai Nippon Printing Co., Ltd.
Hiroyuki Obata
G06 - COMPUTING CALCULATING COUNTING
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
Overlying shifter type phase shift photomask blank, overlying shift...
Patent number
5,576,123
Issue date
Nov 19, 1996
Dai Nippon Printing Co., Ltd.
Hiroshi Mohri
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Blanks for phase shift photomasks, and phase shift photomasks
Patent number
5,561,009
Issue date
Oct 1, 1996
Dai Nippon Printing Co., Ltd.
Hiroshi Mohri
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
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
Information
Patent Grant
Phase shift photomask comprising a layer of aluminum oxide with mag...
Patent number
5,380,608
Issue date
Jan 10, 1995
Dai Nippon Printing Co., Ltd.
Hiroyuki Miyashita
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Method for recording and reproducing information, apparatus therefo...
Patent number
5,161,233
Issue date
Nov 3, 1992
Dai Nippon Printing Co., Ltd.
Makoto Matsuo
G06 - COMPUTING CALCULATING COUNTING
Patents Applications
last 30 patents
Information
Patent Application
PHOTOMASK AND METHODS FOR MANUFACTURING AND CORRECTING PHOTOMASK
Publication number
20190332006
Publication date
Oct 31, 2019
DAI NIPPON PRINTING CO., LTD.
Takaharu NAGAI
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
PHOTOMASK AND METHODS FOR MANUFACTURING AND CORRECTING PHOTOMASK
Publication number
20180321582
Publication date
Nov 8, 2018
DAI NIPPON PRINTING CO., LTD.
Takaharu NAGAI
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
PHOTOMASK AND METHODS FOR MANUFACTURING AND CORRECTING PHOTOMASK
Publication number
20170075213
Publication date
Mar 16, 2017
DAI NIPPON PRINTING CO., LTD.
Takaharu NAGAI
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
PHOTOMASK AND METHODS FOR MANUFACTURING AND CORRECTING PHOTOMASK
Publication number
20150140480
Publication date
May 21, 2015
DAI NIPPON PRINTING CO., LTD.
Takaharu NAGAI
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
PHOTOMASK AND METHODS FOR MANUFACTURING AND CORRECTING PHOTOMASK
Publication number
20110294045
Publication date
Dec 1, 2011
DAI NIPPON PRINTING CO., LTD.
Takaharu Nagai
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
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
METHOD FOR RECORDING AND REPRODUCING INFORMATION, APPARATUS THEREFO...
Publication number
20020005888
Publication date
Jan 17, 2002
DAI NIPPON PRINTING
HIROYUKI OBATA
G06 - COMPUTING CALCULATING COUNTING
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