The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Mar. 04, 2008

Filed:

Jul. 14, 2005
Applicants:

Takashi Konno, Takamatsu, JP;

Hiroki Hayashi, Takamatau, JP;

Toshihide Tani, Takamatsu, JP;

Masamichi Oi, Chiba, JP;

Masanao Munekane, Chiba, JP;

Koji Iwasaki, Chiba, JP;

Inventors:

Takashi Konno, Takamatsu, JP;

Hiroki Hayashi, Takamatau, JP;

Toshihide Tani, Takamatsu, JP;

Masamichi Oi, Chiba, JP;

Masanao Munekane, Chiba, JP;

Koji Iwasaki, Chiba, JP;

Assignees:

AOI Electronics Co., Ltd., Takamatsu-shi, JP;

SII Nano Technology Inc., Chiba-shi, JP;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01R 27/26 (2006.01); G01N 19/02 (2006.01); G01M 19/00 (2006.01); B66C 1/42 (2006.01);
U.S. Cl.
CPC ...
Abstract

A fixed electrode and a movable electrode used to drive each arm are disposed at a drive unit. As a voltage is applied between the fixed electrode and the movable the electrode, a coulomb force causes the movable the electrode to move, thereby driving the arms along the closing direction. The dimensions of a sample can be measured based upon the electrostatic capacity achieved between the electrodes when the sample becomes gripped by the arms.


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