Patents by Inventor Mark Robert Columbus

Mark Robert Columbus has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • METHOD OF REDUCING AUDIBLE NOISE IN MAGNETIC CORES AND MAGNETIC CORES HAVING REDUCED AUDIBLE NOISE
    Publication number: 20130106559
    Abstract: An amorphous alloy-based magnetic core with reduced audible noise and a method of making the amorphous alloy-based magnetic core emanating low audible noise, including: placing the core with multiple layers of high strength tape on the core legs, wherein the tapes have a high tensile strength, high dielectric strength and high service temperature, resulting in reduced level of audible noise. When operated under optimum condition, the reduced level of audible noise is 6-10 dB less when compared with a same-size core that has been coated with resin instead.
    Type: Application
    Filed: October 28, 2011
    Publication date: May 2, 2013
    Applicant: METGLAS, INC.
    Inventors: Mark Robert Columbus, Robert Brown, Kengo Takahashi, Ryusuke Hasegawa
  • Method of reducing audible noise in magnetic cores and magnetic cores having reduced audible noise
    Patent number: 8427272
    Abstract: An amorphous alloy-based magnetic core with reduced audible noise and a method of making the amorphous alloy-based magnetic core emanating low audible noise, including: placing the core with multiple layers of high strength tape on the core legs, wherein the tapes have a high tensile strength, high dielectric strength and high service temperature, resulting in reduced level of audible noise. When operated under optimum condition, the reduced level of audible noise is 6-10 dB less when compared with a same-size core that has been coated with resin instead.
    Type: Grant
    Filed: October 28, 2011
    Date of Patent: April 23, 2013
    Assignee: Metglas, Inc.
    Inventors: Mark Robert Columbus, Robert Brown, Kengo Takahashi, Ryusuke Hasegawa