Patents by Inventor Masaaki Iwakura

Masaaki Iwakura 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 COMPONENT, METHOD FOR WINDING END CONNECTION THEREOF AND RESONANCE TRANSFORMER
    Publication number: 20080100407
    Abstract: A planar coil component includes terminal metal fittings that include a crimping part, a terminal parts and a junction, and a bobbin on which a winding is wound. The bobbin has a terminal board including insertion holes. The terminal part is inserted from an upper surface of the terminal board into the insertion holes with the junction exposed, so that the terminal part projects from a bottom surface of the terminal board, each end of the winding is inserted into the crimping part through a slot in the bottom surface of the terminal board, and crimped. The winding is one of a litz wire, a stranded wires and a parallel wire, and welded at an end tip and connected to the terminal metal fitting.
    Type: Application
    Filed: October 17, 2007
    Publication date: May 1, 2008
    Applicant: TDK CORPORATION
    Inventors: Kenichi Yamaguchi, Masaaki Iwakura, Toru Kuramochi
  • Ferrite core and transformer using the same
    Publication number: 20060244561
    Abstract: A ferrite core includes an end face portion, a pair of outer legs protruding from the end face portion, and a center leg protruding from the end face portion between the pair of outer legs.. A width W1 close to one end portion of the center leg in a Y-axis direction perpendicular to a facing direction of the outer legs is smaller than a width W2 close to the other end portion. According to this configuration, a circuit component may be positioned close to the end portion. A transformer includes the ferrite core.
    Type: Application
    Filed: April 25, 2006
    Publication date: November 2, 2006
    Applicant: TDK CORPORATION
    Inventors: Masaaki Iwakura, Kazunori Ishibashi, Mitsuhiro Seki
  • Resin-composite aluminum profiles, heat insulating aluminum profiles, and method and apparatus for production thereof
    Patent number: 6500550
    Abstract: A method is disclosed for producing a resin-composite profile. The method comprises providing an aluminum profile having a coating film that is capable of forming a functional group which reacts with isocyanate. A discharge treatment is performed on the film wherein the treated surface is capable of reacting with isocyanate. A urethane resin substantially formed of isocyanates and polyol is joined to the discharge treated surface.
    Type: Grant
    Filed: August 1, 2000
    Date of Patent: December 31, 2002
    Assignee: YKK Corporation
    Inventors: Masatake Tsuboi, Masaki Wakabayashi, Norio Shioda, Shigeo Irie, Masaaki Iwakura, Toshiyuki Shoji
  • Resin-composite aluminum profiles and apparatus for production thereof
    Patent number: 6143372
    Abstract: A method is disclosed for producing a resin-composite profile. The method comprises providing an aluminum profile having a coating film that is capable of forming a functional group which reacts with isocyanate. A discharge treatment is performed on the film wherein the treated surface is capable of reacting with isocyanate. A urethane resin substantially formed of isocyanates and polyol is joined to the discharge treated surface.
    Type: Grant
    Filed: June 5, 1998
    Date of Patent: November 7, 2000
    Assignee: YKK Corporation
    Inventors: Masatake Tsuboi, Masaki Wakabayashi, Norio Shioda, Shigeo Irie, Masaaki Iwakura, Toshiyuki Shoji
  • Ferrite magnetic core
    Patent number: D539220
    Type: Grant
    Filed: September 2, 2005
    Date of Patent: March 27, 2007
    Assignee: TDK Corporation
    Inventor: Masaaki Iwakura
  • Bobbin for a transformer
    Patent number: D560164
    Type: Grant
    Filed: December 28, 2005
    Date of Patent: January 22, 2008
    Assignee: TDK Corporation
    Inventor: Masaaki Iwakura