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:
Aug. 09, 2005
Filed:
Jul. 22, 2003
Michael Bancroft Simmonds, Mammoth Lakes, CA (US);
Kurt Gordon Jensen, Poway, CA (US);
Jost Hermann Diederichs, Poway, CA (US);
Randall Christopher Black, San Diego, CA (US);
Michael Bancroft Simmonds, Mammoth Lakes, CA (US);
Kurt Gordon Jensen, Poway, CA (US);
Jost Hermann Diederichs, Poway, CA (US);
Randall Christopher Black, San Diego, CA (US);
Quantum Design, Inc., San Diego, CA (US);
Abstract
An apparatus is provided for quantitatively measuring samples whose amount or other characteristic quality is to be determined. The samples are arranged in a predefined pattern and are excited in a magnetic field. The magnetizations of the magnetic particles are thereby caused to oscillate at the excitation frequency in the manner of a dipole to create their own fields. These fields are inductively coupled to at least one substantially flat sensor such as sensing coils fabricated in a gradiometer configuration.