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Shigeru Sakuma
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Chigasaki-shi, JP
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Patents Grants
last 30 patents
Information
Patent Grant
Method for producing optical member
Patent number
6,994,747
Issue date
Feb 7, 2006
Nikon Corporation
Hiroyuki Hiraiwa
G02 - OPTICS
Information
Patent Grant
Manufacturing method for calcium fluoride and calcium fluoride for...
Patent number
6,811,606
Issue date
Nov 2, 2004
Nikon Corporation
Shigeru Sakuma
G02 - OPTICS
Information
Patent Grant
Optical member for photolithography and method for evaluating the same
Patent number
6,782,074
Issue date
Aug 24, 2004
Nikon Corporation
Shigeru Sakuma
C30 - CRYSTAL GROWTH
Information
Patent Grant
OPTICAL ELEMENT MADE FROM FLUORIDE SINGLE CRYSTAL, METHOD FOR MANUF...
Patent number
6,411,384
Issue date
Jun 25, 2002
Nikon Corporation
Shigeru Sakuma
G02 - OPTICS
Information
Patent Grant
Optical member for photolithography and photolithography apparatus
Patent number
6,377,332
Issue date
Apr 23, 2002
Nikon Corporation
Shigeru Sakuma
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Manufacturing method for calcium fluoride and calcium fluoride for...
Patent number
6,332,922
Issue date
Dec 25, 2001
Nikon Corporation
Shigeru Sakuma
C30 - CRYSTAL GROWTH
Information
Patent Grant
Optical element made from fluoride single crystal, method for manuf...
Patent number
6,201,634
Issue date
Mar 13, 2001
Nikon Corporation
Shigeru Sakuma
G02 - OPTICS
Information
Patent Grant
Image-focusing optical system for ultraviolet laser
Patent number
6,061,174
Issue date
May 9, 2000
Nikon Corporation
Masaki Shiozawa
C30 - CRYSTAL GROWTH
Information
Patent Grant
Projection exposure apparatus
Patent number
5,978,070
Issue date
Nov 2, 1999
Nikon Corporation
Shigeru Sakuma
C30 - CRYSTAL GROWTH
Patents Applications
last 30 patents
Information
Patent Application
Method for manufacturing an optical member formed of a fluoride cry...
Publication number
20040237880
Publication date
Dec 2, 2004
Nikon Corporation
Shigeru Sakuma
G02 - OPTICS
Information
Patent Application
Fluoride crystal material for optical element to be used for photol...
Publication number
20040223212
Publication date
Nov 11, 2004
Nikon Corporation
Shigeru Sakuma
C30 - CRYSTAL GROWTH
Information
Patent Application
Optical member for photolithography and method for evaluating the same
Publication number
20030112501
Publication date
Jun 19, 2003
Nikon Corporation
Shigeru Sakuma
C30 - CRYSTAL GROWTH
Information
Patent Application
Manufacturing method for calcium fluoride and calcium fluoride for...
Publication number
20020038625
Publication date
Apr 4, 2002
NIKON CORPORATION
Shigeru Sakuma
C30 - CRYSTAL GROWTH
Information
Patent Application
Optical element made from fluoride single crystal, method for manuf...
Publication number
20010024314
Publication date
Sep 27, 2001
NIKON CORPORATION
Shigeru Sakuma
G02 - OPTICS