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Toshiro Ishiyama
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Tokyo, JP
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Patents Grants
last 30 patents
Information
Patent Grant
Projection optical system, exposure apparatus, and device productio...
Patent number
7,154,585
Issue date
Dec 26, 2006
Nikon Corporation
Koji Shigematsu
G02 - OPTICS
Information
Patent Grant
Catadioptric system for photolithography
Patent number
5,771,125
Issue date
Jun 23, 1998
Nikon Corporation
Toshiro Ishiyama
G02 - OPTICS
Information
Patent Grant
Catadioptric reduction projection optical system and exposure appar...
Patent number
5,694,241
Issue date
Dec 2, 1997
Nikon Corporation
Toshiro Ishiyama
G02 - OPTICS
Information
Patent Grant
Catadioptric reduction projection optical system
Patent number
5,668,673
Issue date
Sep 16, 1997
Nikon Corporation
Yutaka Suenaga
G02 - OPTICS
Information
Patent Grant
Catadioptric optical system
Patent number
5,592,329
Issue date
Jan 7, 1997
Nikon Corporation
Toshiro Ishiyama
G02 - OPTICS
Information
Patent Grant
Inverse telescopic wide angle lens
Patent number
5,477,388
Issue date
Dec 19, 1995
Nikon Corporation
Toshiro Ishiyama
G02 - OPTICS
Information
Patent Grant
Optical position detecting apparatus
Patent number
5,434,425
Issue date
Jul 18, 1995
Nikon Corporation
Toshiro Ishiyama
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Inverse telescopic wide angle lens
Patent number
5,321,554
Issue date
Jun 14, 1994
Nikon Corporation
Toshiro Ishiyama
G02 - OPTICS
Information
Patent Grant
Zoom lens
Patent number
5,321,553
Issue date
Jun 14, 1994
Nikon Corporation
Toshiro Ishiyama
G02 - OPTICS
Patents Applications
last 30 patents
Information
Patent Application
Projection optical system, exposure apparatus, and device productio...
Publication number
20040009415
Publication date
Jan 15, 2004
Nikon Corporation
Koji Shigematsu
G02 - OPTICS