Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Moritoshi Ando0
Sachihiro Youoku0
Date of Patent
February 1, 2011
0Patent Application Number
116016260
Date Filed
November 20, 2006
0Patent Citations Received
Patent Primary Examiner
Patent abstract
A microinjection apparatus of the present invention includes a needle-position polarity detecting unit that detects a position of the needle in the vertical direction at which a value of a differential aggregate distribution becomes the maximum in the situation in which a shape of the leading edge of the needle at a focal position narrows at the right. Moreover, a differential-average determining unit, based on a differential average of an image near the position detected by the needle-position polarity detecting unit, determines the lowest allowable position of the needle, which is a position at which a differential average exceeds a predetermined threshold.
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