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Tokyo-to, JP
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Patents Grants
last 30 patents
Information
Patent Grant
Diffractive optical element
Patent number
11,366,256
Issue date
Jun 21, 2022
Dai Nippon Printing Co., Ltd.
Nobuhito Toyama
G02 - OPTICS
Information
Patent Grant
Diffractive optical element
Patent number
11,340,389
Issue date
May 24, 2022
Dai Nippon Printing Co., Ltd.
Nobuhito Toyama
G02 - OPTICS
Information
Patent Grant
Diffractive optical element and light irradiation device
Patent number
10,768,347
Issue date
Sep 8, 2020
Dai Nippon Printing Co., Ltd.
Yuichi Miyazaki
G02 - OPTICS
Information
Patent Grant
Diffractive optical element and light irradiation apparatus
Patent number
10,704,763
Issue date
Jul 7, 2020
Dai Nippon Printing Co., Ltd.
Yuichi Miyazaki
G02 - OPTICS
Information
Patent Grant
Diffractive optical element and light irradiation apparatus
Patent number
10,591,133
Issue date
Mar 17, 2020
Dai Nippon Printing Co., Ltd.
Yuichi Miyazaki
F21 - LIGHTING
Information
Patent Grant
Diffractive optical device, and aligner comprising that device
Patent number
8,259,290
Issue date
Sep 4, 2012
Dai Nippon Printing Co., Ltd.
Nobuhito Toyama
G02 - OPTICS
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
Photomask
Patent number
7,968,255
Issue date
Jun 28, 2011
Dai Nippon Printing Co., Ltd.
Yasuhisa Kitahata
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Designing method and device for phase shift mask
Patent number
7,367,010
Issue date
Apr 29, 2008
Dai Nippon Printing Co., Ltd.
Kei Mesuda
E21 - EARTH DRILLING MINING
Information
Patent Grant
Antireflection structure
Patent number
7,297,386
Issue date
Nov 20, 2007
Dai Nippon Printing Co., Ltd.
Toshiyuki Suzuki
B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information
Patent Grant
Designing method and device for phase shift mask
Patent number
7,287,240
Issue date
Oct 23, 2007
Dai Nippon Printing Co., Ltd.
Nobuhito Toyama
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Method of evaluating the exposure property of data to wafer
Patent number
7,117,140
Issue date
Oct 3, 2006
Dainippon Printing Co., Ltd.
Nobuhito Toyama
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Designing method and device for phase shift mask
Patent number
7,067,221
Issue date
Jun 27, 2006
Dai Nippon Printing Co., Ltd.
Kei Mesuda
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
METHOD FOR CORRECTING DESIGN PATTERN OF SEMICONDUCTOR CIRCUIT, A PH...
Patent number
6,821,683
Issue date
Nov 23, 2004
Dainippon Printing Co., Ltd.
Nobuhito Toyama
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Design circuit pattern for test of semiconductor circuit
Patent number
6,694,500
Issue date
Feb 17, 2004
Dainippon Printing Co., Ltd.
Nobuhito Toyama
G01 - MEASURING TESTING
Information
Patent Grant
Method of forming minute focusing lens
Patent number
6,656,664
Issue date
Dec 2, 2003
Dai Nippon Printing Co., Ltd.
Yoichi Takahashi
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Process for making photomask pattern data and photomask
Patent number
6,560,767
Issue date
May 6, 2003
Dainippon Printing Co., Ltd.
Nobuhito Toyama
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Method for forming pattern data and method for writing a photomask...
Patent number
6,523,163
Issue date
Feb 18, 2003
Dainippon Printing Co., Ltd.
Nobuhito Toyama
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Patents Applications
last 30 patents
Information
Patent Application
DIFFRACTIVE OPTICAL ELEMENT
Publication number
20200116908
Publication date
Apr 16, 2020
DAI NIPPON PRINTING CO., LTD.
Nobuhito TOYAMA
G02 - OPTICS
Information
Patent Application
DIFFRACTIVE OPTICAL ELEMENT
Publication number
20200073030
Publication date
Mar 5, 2020
DAI NIPPON PRINTING CO., LTD.
Nobuhito TOYAMA
G02 - OPTICS
Information
Patent Application
DIFFRACTIVE OPTICAL ELEMENT AND LIGHT IRRADIATION APPARATUS
Publication number
20190346108
Publication date
Nov 14, 2019
DAI NIPPON PRINTING CO., LTD.
Yuichi MIYAZAKI
G02 - OPTICS
Information
Patent Application
DIFFRACTIVE OPTICAL ELEMENT AND LIGHT IRRADIATION DEVICE
Publication number
20190285781
Publication date
Sep 19, 2019
DAI NIPPON PRINTING CO., LTD.
Yuichi MIYAZAKI
G02 - OPTICS
Information
Patent Application
DIFFRACTIVE OPTICAL ELEMENT AND LIGHT IRRADIATION APPARATUS
Publication number
20190178468
Publication date
Jun 13, 2019
DAI NIPPON PRINTING CO., LTD.
Yuichi MIYAZAKI
F21 - LIGHTING
Information
Patent Application
PHOTOMASK
Publication number
20090311612
Publication date
Dec 17, 2009
Yasuhisa Kitahata
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
DIFFRACTIVE OPTICAL DEVICE, AND ALIGNER COMPRISING THAT DEVICE
Publication number
20090168040
Publication date
Jul 2, 2009
DAI NIPPON PRINTING CO., LTD.
Nobuhito Toyama
G02 - OPTICS
Information
Patent Application
Designing method and device for phase shift mask
Publication number
20060141365
Publication date
Jun 29, 2006
Nobuhito Toyama
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Application
Designing method and device for phase shift mask
Publication number
20050262468
Publication date
Nov 24, 2005
DAI NIPPON PRINTING CO. , LTD.
Kei Mesuda
E21 - EARTH DRILLING MINING
Information
Patent Application
Antireflection structure
Publication number
20050074579
Publication date
Apr 7, 2005
Dai Nippon Printing Co., Ltd.
Toshiyuki Suzuki
B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information
Patent Application
Phase mask for forming diffraction grating, method of fabricating p...
Publication number
20040131949
Publication date
Jul 8, 2004
Dai Nippon Printing Co., Ltd.
Masaaki Kurihara
G02 - OPTICS
Information
Patent Application
Designing method and device for phase shift mask
Publication number
20040101766
Publication date
May 27, 2004
DAI NIPPON PRINTING CO. , LTD.
Kei Mesuda
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
Method of forming minute focusing lens
Publication number
20030059725
Publication date
Mar 27, 2003
Yoichi Takahashi
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
Method of evaluating the exposure property of data to wafer
Publication number
20020194576
Publication date
Dec 19, 2002
Nobuhito Toyama
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
Method for correcting design pattern of semiconductor circuit, a ph...
Publication number
20020110742
Publication date
Aug 15, 2002
Nobuhito Toyama
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
Design circuit pattern for test of semiconductor circuit
Publication number
20020075028
Publication date
Jun 20, 2002
Nobuhito Toyama
G01 - MEASURING TESTING
Information
Patent Application
Process for making photomask pattern data and photomask
Publication number
20020028523
Publication date
Mar 7, 2002
Nobuhito Toyama
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY