Is a
Patent attributes
Current Assignee
Patent Jurisdiction
Patent Number
Patent Inventor Names
Hiroyuki Saito0
Katsuhiro Sasada0
Date of Patent
December 1, 2009
0Patent Application Number
120380760
Date Filed
February 27, 2008
0Patent Primary Examiner
Patent abstract
An object of the present invention is to prevent foreign bodies attracted by a magnetic field of an objective lens or an electric field of an electrode plate and adhered to a surface of the objective lens or electrode plate from dropping onto the surface of a sample and adhering there during observation of the sample.
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