Patents by Inventor Yukari Hishimura

Yukari Hishimura 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).

  • Patent number: 7397334
    Abstract: The invention relates to a coil component used as a main component of a common mode choke coil or a transformer and a method of manufacturing the same, and the invention is aimed at providing a coil component with a small size and a low height having high differential transmission characteristics and a method of manufacturing the same. A common mode choke coil has a configuration in which an insulation film, a coil conductor, another insulation film, another coil conductor and another insulation film are stacked in the order listed between magnetic substrates provided opposite to each other. The coil conductors have a coil section which is in a trapezoidal general configuration. A top portion of the coil section is formed in a convex configuration such that it bulges in the form of a convex, and a bottom portion of the coil section is formed in a planar configuration.
    Type: Grant
    Filed: February 9, 2005
    Date of Patent: July 8, 2008
    Assignee: TDK Corporation
    Inventors: Makoto Yoshida, Nobuyuki Okuzawa, Tomokazu Ito, Yukari Hishimura, Yoshikazu Sato
  • Patent number: 7221250
    Abstract: The invention relates to a coil component used as a major component of a common mode choke coil or transformer and a method of manufacturing the same, and the invention is aimed at providing a compact and low-profile coil component having a high common mode filtering property and a method of manufacturing the same. A common mode choke coil has a configuration in which a first insulation film, a first coil conductor, a second insulation film, a second coil conductor and a third insulation film are stacked in the order listed between magnetic substrates provided opposite to each other. A top portion of the first coil conductor is formed in a convex shape. The second insulation film is formed so as to follow the shape of the top portion of the first coil conductor. A bottom portion of the second coil conductor is formed in a concave shape such that it follows the shape of a top portion of the second insulation film.
    Type: Grant
    Filed: February 23, 2005
    Date of Patent: May 22, 2007
    Assignee: TDK Corporation
    Inventors: Makoto Yoshida, Nobuyuki Okuzawa, Tomokazu Ito, Yukari Hishimura, Yoshikazu Sato
  • Publication number: 20050195062
    Abstract: The invention relates to a coil component used as a major component of a common mode choke coil or transformer and a method of manufacturing the same, and the invention is aimed at providing a compact and low-profile coil component having a high common mode filtering property and a method of manufacturing the same. A common mode choke coil has a configuration in which a first insulation film, a first coil conductor, a second insulation film, a second coil conductor and a third insulation film are stacked in the order listed between magnetic substrates provided opposite to each other. A top portion of the first coil conductor is formed in a convex shape. The second insulation film is formed so as to follow the shape of the top portion of the first coil conductor. A bottom portion of the second coil conductor is formed in a concave shape such that it follows the shape of a top portion of the second insulation film.
    Type: Application
    Filed: February 23, 2005
    Publication date: September 8, 2005
    Applicant: TDK CORPORATION
    Inventors: Makoto Yoshida, Nobuyuki Okuzawa, Tomokazu Ito, Yukari Hishimura, Yoshikazu Sato
  • Publication number: 20050184848
    Abstract: The invention relates to a coil component used as a main component of a common mode choke coil or a transformer and a method of manufacturing the same, and the invention is aimed at providing a coil component with a small size and a low height having high differential transmission characteristics and a method of manufacturing the same. A common mode choke coil has a configuration in which an insulation film, a coil conductor, another insulation film, another coil conductor and another insulation film are stacked in the order listed between magnetic substrates provided opposite to each other. The coil conductors have a coil section which is in a trapezoidal general configuration. A top portion of the coil section is formed in a convex configuration such that it bulges in the form of a convex, and a bottom portion of the coil section is formed in a planar configuration.
    Type: Application
    Filed: February 9, 2005
    Publication date: August 25, 2005
    Applicant: TDK CORPORATION
    Inventors: Makoto Yoshida, Nobuyuki Okuzawa, Tomokazu Ito, Yukari Hishimura, Yoshikazu Sato