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.
Patent No.:
Date of Patent:
Mar. 21, 2006
Filed:
Jun. 25, 2002
Jonathan Jay Bernstein, Medfield, MA (US);
William Patrick Taylor, North Andover, MA (US);
John David Brazzle, Milford, NH (US);
Christopher John Corcoran, Woods Hole, MA (US);
James Kelly Lee, Rochester, NY (US);
Jonathan Jay Bernstein, Medfield, MA (US);
William Patrick Taylor, North Andover, MA (US);
John David Brazzle, Milford, NH (US);
Christopher John Corcoran, Woods Hole, MA (US);
James Kelly Lee, Rochester, NY (US);
Corning Incorporated, Corning, NY (US);
Abstract
A monolithic or dual monolithic magnetic device or apparatus having an array of formations such as protruding or raised nubs wherein adjacent nubs have the same or opposite polarity to produce a high magnetic field gradient in the vicinity of the nubs is described. In lieu of nubs, the use of a magnetic device with thru-holes, blind holes, filled holes, or iron flux concentrators is also detailed, wherein all embodiments result in regions of high magnetic field gradient. Apparatus and methods for spot-poling a magnet array are also illustrated. An application of an array of MEMS actuators using the magnets of the present invention to produce high field gradient at precise locations is described. A further application of a biochemical separation unit containing a magnetic array and micro-fluidic channels for separating out magnetic particles tagged with bio-specific molecules for sensing the presence of a disease or specified chemicals is also described.