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:
Feb. 05, 2013
Filed:
Apr. 23, 2009
Keiji Sakai, Tokyo, JP;
Keiji Sakai, Tokyo, JP;
The University of Tokyo, Tokyo, JP;
Abstract
An apparatus of measuring viscosity and/or elasticity comprising: an electro-conductive rotor; a container that contains a sample and the rotor such that the rotor is arranged in the sample; a magnet unit that is arranged in the surrounding of the container and applies a magnetic field to the rotor; a rotation controlling unit that drives the magnet unit to apply a rotating magnetic field to the rotor so as to induce induced current in the rotor and rotate the rotor by providing the rotor with a rotation torque caused by Lorentz interaction between the induced current and the magnetic field applied to the rotor; a rotation detection unit that detects the rotation of the rotor; and a dynamic property detection unit that detects viscosity and/or elasticity of the sample being in contact with the rotor based on the rotation torque and the rotational movement.