Magnetic (e.g., Electromagnetic, Etc.) Or Electrostatic Processes Patents (Class 75/10.67)
  • Method of preparing magnetostrictive material in microgravity environment
    Patent number: 6508854
    Abstract: A method of preparing a magnetostrictive material, including the steps of: (a) forming a melt of metals having a composition corresponding to the magnetostrictive material; (b) subjecting the melt to a micro-gravity environment; and (c) cooling the melt in the micro-gravity environment at a rate of at least 50° C. per second, while applying a magnetic field to the melt, to solidity the melt.
    Type: Grant
    Filed: December 21, 2000
    Date of Patent: January 21, 2003
    Assignee: National Institute of Advanced Industrial Science and Technology
    Inventors: Hideki Minagawa, Takeshi Okutani, Hideaki Nagai, Takashi Tsurue, Yoshinori Nakata, Keiji Kamada
  • Method of synthesizing nickel fibers and the nickel fibers so prepared
    Patent number: 6375703
    Abstract: The present invention discloses s novel synthesis method of nickel fibers. The method of the present invention involves reducing nickel ions in an aqueous solution with a reducing agent in the presence of a base, a pH buffer, and a magnetic field or a surfactant at a temperature of 80-100° C. for a period of time, wherein a pH value of the aqueous solution is not less than 11.0 during the period of time, so that nickel fibers are formed in the aqueous solution. The nickel fibers synthesized in the present invention have a diameter ranging from sub-micron to microns, and a length up to centimeters.
    Type: Grant
    Filed: October 17, 2000
    Date of Patent: April 23, 2002
    Assignee: National Science Council
    Inventors: Kan-Sen Chou, Chiang-Yuh Ren, Chieh-Tsung Lo
  • Method and device for separating particles from an electrically conductive liquid flow using electromagnetic forces
    Patent number: 6355085
    Abstract: A method for separating inclusions from an electrically conductive liquid flow using electromagnetic forces, wherein the inclusions and the liquid have differing electrical conductivities. The flow is exposed to a spatially heterogeneous magnetic flux produced by a continuous static magnetic field.
    Type: Grant
    Filed: January 5, 2000
    Date of Patent: March 12, 2002
    Assignee: Centre National de la Recherche Scientifique
    Inventors: Béatrice Pillin, Pascale Gillon, Eric Beaugnon