Patents by Inventor Satoshi Horikami

Satoshi Horikami 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).

  • Planar coil and planar transformer
    Patent number: 6847284
    Abstract: A planar coil includes a winding of N turns (N is an integer greater than or equal to 2). Letting ri(n) be a radius of an inner circumference of a winding portion at the nth turn (n is an integer greater than or equal to 1 and less than or equal to N) from the inner side; ro(n) be a radius of an outer circumference of the same; rmin be a radius of an inner circumference of the innermost winding portion; Wtotal be a difference between a radius of an outer circumference of the outermost winding portion and the radius of the inner circumference of the innermost winding portion; and D be a distance between winding portions at adjacent turns, the ri(n) and ro(n) are determined so as to minimize a value of A expressed by equation (1) when the rmin, Wtotla and D are given.
    Type: Grant
    Filed: February 28, 2002
    Date of Patent: January 25, 2005
    Assignee: TDK Corporation
    Inventors: Masahiro Gamou, Satoshi Horikami
  • Planar coil and planar transformer
    Publication number: 20030179067
    Abstract: An object of the invention is to arrange a winding so as to minimize a loss in a limited space.
    Type: Application
    Filed: December 10, 2002
    Publication date: September 25, 2003
    Inventors: Masahiro Gamou, Satoshi Horikami