Katsuhiko Sakai

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Katsuta, JP

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Patents Grantslast 30 patents

Information Patent Grant
Vibration cancellation system for a charged particle beam apparatus
- Patent number 6,043,490
- Issue date Mar 28, 2000
- Hitachi, Ltd.
- Katsuhiko Sakai
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Apparatus for suppressing electrification of sample in charged beam...
- Patent number 5,668,368
- Issue date Sep 16, 1997
- Hitachi, Ltd.
- Katsuhiko Sakai
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Apparatus and method for ion beam neutralization
- Patent number 5,576,538
- Issue date Nov 19, 1996
- Hitachi, Ltd.
- Katsuhiko Sakai
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Apparatus and method for suppressing electrification of sample in c...
- Patent number 5,466,929
- Issue date Nov 14, 1995
- Hitachi, Ltd.
- Katsuhiko Sakai
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Particle beam irradiating apparatus having charge suppressing devic...
- Patent number 4,939,360
- Issue date Jul 3, 1990
- Hitachi, Ltd.
- Katsuhiko Sakai
- H01 - BASIC ELECTRIC ELEMENTS