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Patents Grants
last 30 patents
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Patent Grant
Reflective mask blank and reflective mask
Patent number
12,181,790
Issue date
Dec 31, 2024
Shin-Etsu Chemical Co., Ltd.
Shohei Mimura
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Substrate with multilayer reflection film for EUV mask blank, manuf...
Patent number
11,860,529
Issue date
Jan 2, 2024
Shin-Etsu Chemical Co., Ltd.
Yukio Inazuki
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Substrate with multilayer reflection film for EUV mask blank, manuf...
Patent number
11,835,851
Issue date
Dec 5, 2023
Shin-Etsu Chemical Co., Ltd.
Yukio Inazuki
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Photomask blank, and manufacturing method thereof
Patent number
11,774,845
Issue date
Oct 3, 2023
Shin-Etsu Chemical Co., Ltd.
Kouhei Sasamoto
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Substrate defect inspection method and substrate defect inspection...
Patent number
11,624,712
Issue date
Apr 11, 2023
Shin-Etsu Chemical Co., Ltd.
Tsuneo Terasawa
G01 - MEASURING TESTING
Information
Patent Grant
Method of manufacturing reflective mask blank, reflective mask blan...
Patent number
11,415,874
Issue date
Aug 16, 2022
Shin-Etsu Chemical Co., Ltd.
Tsuneo Terasawa
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Photomask blank and method for preparing photomask
Patent number
11,327,393
Issue date
May 10, 2022
Shin-Etsu Chemical Co., Ltd.
Takuro Kosaka
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Photomask blank, photomask blank making method, and photomask makin...
Patent number
11,073,756
Issue date
Jul 27, 2021
Shin-Etsu Chemical Co., Ltd.
Takuro Kosaka
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Halftone phase shift mask blank and halftone phase shift mask
Patent number
10,989,999
Issue date
Apr 27, 2021
Shin-Etsu Chemical Co., Ltd.
Yukio Inazuki
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Halftone phase shift photomask blank, making method, and halftone p...
Patent number
10,859,904
Issue date
Dec 8, 2020
Shin-Etsu Chemical Co., Ltd.
Takuro Kosaka
C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information
Patent Grant
Photomask blank and method for preparing photomask
Patent number
10,678,125
Issue date
Jun 9, 2020
Shin-Etsu Chemical Co., Ltd.
Takuro Kosaka
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Halftone phase shift photomask blank, making method, and halftone p...
Patent number
10,670,957
Issue date
Jun 2, 2020
Shin-Etsu Chemical Co., Ltd.
Takuro Kosaka
C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information
Patent Grant
Photomask blank, method for manufacturing photomask, and mask patte...
Patent number
10,585,345
Issue date
Mar 10, 2020
Shin-Etsu Chemical Co., Ltd.
Shigeo Irie
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Mask blank and making method
Patent number
10,488,750
Issue date
Nov 26, 2019
Shin-Etsu Chemical Co., Ltd.
Yukio Inazuki
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Halftone phase shift mask blank and halftone phase shift mask
Patent number
10,466,583
Issue date
Nov 5, 2019
Shin-Etsu Chemical Co., Ltd.
Yukio Inazuki
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Halftone phase shift photomask blank and making method
Patent number
10,459,333
Issue date
Oct 29, 2019
Shin-Etsu Chemical Co., Ltd.
Takuro Kosaka
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Halftone phase shift mask blank and halftone phase shift mask
Patent number
10,372,030
Issue date
Aug 6, 2019
Shin-Etsu Chemical Co., Ltd.
Kouhei Sasamoto
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Halftone phase shift photomask blank and making method
Patent number
10,146,122
Issue date
Dec 4, 2018
Shin-Etsu Chemical Co., Ltd.
Takuro Kosaka
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Silicon target for sputtering film formation and method for forming...
Patent number
9,812,300
Issue date
Nov 7, 2017
Shin-Etsu Chemical Co., Ltd.
Hiroki Yoshikawa
C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information
Patent Grant
Designing of photomask blank and photomask blank
Patent number
9,798,229
Issue date
Oct 24, 2017
Shin-Etsu Chemical Co., Ltd.
Kouhei Sasamoto
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Photomask blank and method for manufacturing photomask blank
Patent number
9,709,885
Issue date
Jul 18, 2017
Shin-Etsu Chemical Co., Ltd.
Yukio Inazuki
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Halftone phase shift photomask blank and making method
Patent number
9,645,485
Issue date
May 9, 2017
Shin-Etsu Chemical Co., Ltd.
Takuro Kosaka
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Photomask blank
Patent number
9,541,823
Issue date
Jan 10, 2017
Shin-Etsu Chemical Co., Ltd.
Kouhei Sasamoto
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Photomask blank and method for manufacturing photomask blank
Patent number
9,488,906
Issue date
Nov 8, 2016
Shin-Etsu Chemical Co., Ltd.
Yukio Inazuki
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Method for manufacturing photomask blank
Patent number
9,400,422
Issue date
Jul 26, 2016
Shin-Etsu Chemical Co., Ltd.
Takashi Yoshii
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Halftone phase shift photomask blank, halftone phase shift photomas...
Patent number
9,366,951
Issue date
Jun 14, 2016
Shin-Etsu Chemical Co., Ltd.
Yukio Inazuki
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Photomask making method, photomask blank and dry etching method
Patent number
9,164,374
Issue date
Oct 20, 2015
Shin-Etsu Chemical Co., Ltd.
Shinichi Igarashi
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Evaluation of etching conditions for pattern-forming film
Patent number
8,992,788
Issue date
Mar 31, 2015
Shin-Etsu Chemical Co., Ltd.
Shinichi Igarashi
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Binary photomask blank and binary photomask making method
Patent number
8,980,503
Issue date
Mar 17, 2015
Shin-Etsu Chemical Co., Ltd.
Hiroki Yoshikawa
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Etching method and photomask blank processing method
Patent number
8,920,666
Issue date
Dec 30, 2014
Shin-Etsu Chemical Co., Ltd.
Shinichi Igarashi
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Patents Applications
last 30 patents
Information
Patent Application
REFLECTIVE MASK BLANK AND MANUFACTURING METHOD OF REFLECTIVE MASK
Publication number
20250060658
Publication date
Feb 20, 2025
Shin-Etsu Chemical Co., Ltd.
Yukio INAZUKI
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
REFLECTIVE MASK BLANK AND MANUFACTURING METHOD OF REFLECTIVE MASK
Publication number
20250060659
Publication date
Feb 20, 2025
Shin-Etsu Chemical Co., Ltd.
Yukio INAZUKI
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
Substrate with Film for Reflective Mask Blank, and Reflective Mask...
Publication number
20240248388
Publication date
Jul 25, 2024
Shin-Etsu Chemical Co., Ltd.
Tsuneo TERASAWA
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
REFLECTIVE MASK BLANK, AND METHOD FOR MANUFACTURING REFLECTIVE MASK
Publication number
20220404694
Publication date
Dec 22, 2022
Shin-Etsu Chemical Co., Ltd.
Takuro KOSAKA
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
REFLECTIVE MASK BLANK, AND METHOD FOR MANUFACTURING THEREOF
Publication number
20220283491
Publication date
Sep 8, 2022
Shin-Etsu Chemical Co., Ltd.
Tsuneo TERASAWA
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
REFLECTIVE MASK BLANK AND REFLECTIVE MASK
Publication number
20220283492
Publication date
Sep 8, 2022
Shin-Etsu Chemical Co., Ltd.
Shohei MIMURA
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
SUBSTRATE WITH MULTILAYER REFLECTION FILM FOR EUV MASK BLANK, MANUF...
Publication number
20220075254
Publication date
Mar 10, 2022
Shin-Etsu Chemical Co., Ltd.
Yukio INAZUKI
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
SUBSTRATE WITH MULTILAYER REFLECTION FILM FOR EUV MASK BLANK, MANUF...
Publication number
20220075255
Publication date
Mar 10, 2022
Shin-Etsu Chemical Co., Ltd.
Yukio INAZUKI
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
SUBSTRATE DEFECT INSPECTION METHOD AND SUBSTRATE DEFECT INSPECTION...
Publication number
20220065797
Publication date
Mar 3, 2022
Shin-Etsu Chemical Co., Ltd.
Tsuneo TERASAWA
G01 - MEASURING TESTING
Information
Patent Application
PHOTOMASK BLANK, AND MANUFACTURING METHOD THEREOF
Publication number
20210405520
Publication date
Dec 30, 2021
Shin-Etsu Chemical Co., Ltd.
Kouhei SASAMOTO
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
Substrate with Film for Reflective Mask Blank, and Reflective Mask...
Publication number
20210333702
Publication date
Oct 28, 2021
Shin-Etsu Chemical Co., Ltd.
Tsuneo TERASAWA
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
METHOD OF MANUFACTURING REFLECTIVE MASK BLANK, REFLECTIVE MASK BLAN...
Publication number
20210080819
Publication date
Mar 18, 2021
Shin-Etsu Chemical Co., Ltd.
Tsuneo TERASAWA
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
PHOTOMASK BLANK AND METHOD FOR PREPARING PHOTOMASK
Publication number
20200264502
Publication date
Aug 20, 2020
Shin-Etsu Chemical Co., Ltd.
Takuro KOSAKA
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
HALFTONE PHASE SHIFT PHOTOMASK BLANK, MAKING METHOD, AND HALFTONE P...
Publication number
20200249561
Publication date
Aug 6, 2020
Shin-Etsu Chemical Co., Ltd.
Takuro KOSAKA
C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information
Patent Application
HALFTONE PHASE SHIFT MASK BLANK AND HALFTONE PHASE SHIFT MASK
Publication number
20200026181
Publication date
Jan 23, 2020
Shin-Etsu Chemical Co., Ltd.
Yukio INAZUKI
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
HALFTONE PHASE SHIFT PHOTOMASK BLANK AND MAKING METHOD
Publication number
20190064650
Publication date
Feb 28, 2019
Shin-Etsu Chemical Co., Ltd.
Takuro KOSAKA
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
PHOTOMASK BLANK, PHOTOMASK BLANK MAKING METHOD, AND PHOTOMASK MAKIN...
Publication number
20190033703
Publication date
Jan 31, 2019
Shin-Etsu Chemical Co., Ltd.
Takuro KOSAKA
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
PHOTOMASK BLANK, METHOD FOR MANUFACTURING PHOTOMASK, AND MASK PATTE...
Publication number
20180267398
Publication date
Sep 20, 2018
Shin-Etsu Chemical Co., Ltd.
Shigeo IRIE
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
HALFTONE PHASE SHIFT MASK BLANK AND HALFTONE PHASE SHIFT MASK
Publication number
20180088457
Publication date
Mar 29, 2018
Shin-Etsu Chemical Co., Ltd.
Yukio INAZUKI
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
HALFTONE PHASE SHIFT PHOTOMASK BLANK, MAKING METHOD, AND HALFTONE P...
Publication number
20180088456
Publication date
Mar 29, 2018
Shin-Etsu Chemical Co., Ltd.
Takuro KOSAKA
C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information
Patent Application
PHOTOMASK BLANK AND METHOD FOR PREPARING PHOTOMASK
Publication number
20170255095
Publication date
Sep 7, 2017
Shin-Etsu Chemical Co., Ltd.
Takuro KOSAKA
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
HALFTONE PHASE SHIFT PHOTOMASK BLANK AND MAKING METHOD
Publication number
20170212417
Publication date
Jul 27, 2017
Shin-Etsu Chemical Co., Ltd.
Takuro KOSAKA
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
PHOTOMASK BLANK AND METHOD FOR MANUFACTURING PHOTOMASK BLANK
Publication number
20170023855
Publication date
Jan 26, 2017
Shin-Etsu Chemical Co., Ltd.
Yukio INAZUKI
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
HALFTONE PHASE SHIFT MASK BLANK AND HALFTONE PHASE SHIFT MASK
Publication number
20160291452
Publication date
Oct 6, 2016
Shin-Etsu Chemical Co., Ltd.
Kouhei SASAMOTO
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
MASK BLANK AND MAKING METHOD
Publication number
20160266485
Publication date
Sep 15, 2016
Shin-Etsu Chemical Co., Ltd.
Yukio INAZUKI
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
HALFTONE PHASE SHIFT PHOTOMASK BLANK AND MAKING METHOD
Publication number
20160033858
Publication date
Feb 4, 2016
Shin-Etsu Chemical Co., Ltd.
Takuro KOSAKA
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
DESIGNING OF PHOTOMASK BLANK AND PHOTOMASK BLANK
Publication number
20160033859
Publication date
Feb 4, 2016
Shin-Etsu Chemical Co., Ltd.
Kouhei SASAMOTO
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
PHOTOMASK BLANK
Publication number
20150160549
Publication date
Jun 11, 2015
Shin-Etsu Chemical Co., Ltd.
Kouhei SASAMOTO
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
HALFTONE PHASE SHIFT PHOTOMASK BLANK, HALFTONE PHASE SHIFT PHOTOMAS...
Publication number
20150125785
Publication date
May 7, 2015
Shin-Etsu Chemical Co., Ltd.
Yukio INAZUKI
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
PHOTOMASK BLANK AND METHOD FOR MANUFACTURING PHOTOMASK BLANK
Publication number
20150086908
Publication date
Mar 26, 2015
Shin-Etsu Chemical Co., Ltd.
Yukio INAZUKI
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY