Patents by Inventor Tomoyuki Akaya

Tomoyuki Akaya 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).

  • High-frequency power inductance element
    Patent number: 6861938
    Abstract: A high frequency power inductance element capable of remarkably reducing a leakage by remarkably reducing an interwinding capacity, remarkably increasing heat radiation from coils, and remarkably improving productivity and a cost, comprising coils formed of a band-shaped conductor spirally wound in a cylindrical shape so that the wider surfaces thereof come flush with each other, an electrically insulated bobbin for installing the coils thereon, and cores inserted into the bobbin to form a closed magnetic circuit.
    Type: Grant
    Filed: September 23, 2003
    Date of Patent: March 1, 2005
    Assignee: FDK Corporation
    Inventors: Katsuo Yamada, Fumiaki Nakao, Tomoyuki Akaya, Satoshi Ota
  • High-frequency power inductance element
    Publication number: 20040125628
    Abstract: A high frequency power inductance element capable of remarkably reducing a leakage by remarkably reducing an interwinding capacity, remarkably increasing heat radiation from coils, and remarkably improving productivity and a cost, comprising coils formed of a band-shaped conductor spirally wound in a cylindrical shape so that the wider surfaces thereof come flush with each other, an electrically insulated bobbin for installing the coils thereon, and cores inserted into the bobbin to form a closed magnetic circuit.
    Type: Application
    Filed: September 23, 2003
    Publication date: July 1, 2004
    Inventors: Katsuo Yamada, Fumiaki Nakao, Tomoyuki Akaya, Satoshi Ota
  • Inductor
    Patent number: 6573820
    Abstract: An inductor of the invention is obtained by forming conductors of a desired shape on bendable plate type support members, providing a slit in one end of each of the conductors, and a claw on the other end of each of the conductors, bending the plate type support members, engaging the slits and claws with each other so as to form windings on the support members and openings therein, and inserting magnetic cores through the openings.
    Type: Grant
    Filed: May 8, 2001
    Date of Patent: June 3, 2003
    Assignee: FDK Corporation
    Inventors: Katsuo Yamada, Fumiaki Nakao, Tomoyuki Akaya, Satoshi Ota, Mikio Kitaoka, Yoshio Matsuo, Tadashi Tateno
  • Inductor
    Publication number: 20010043135
    Abstract: An inductor of the invention is obtained by forming conductors 21 of a desired shape on bendable plate type support members 20, providing a slit 24 in one end of each of the conductors 21, and a claw 25 on the other end of each of the conductors, bending the plate type support members 20, engaging the slits and claws with each other so as to form windings 12 on the support members and openings 28 therein, and inserting magnetic cores 11 through the openings.
    Type: Application
    Filed: May 8, 2001
    Publication date: November 22, 2001
    Inventors: Katsuo Yamada, Fumiaki Nakao, Tomoyuki Akaya, Satoshi Ota, Mikio Kitaoka, Yoshio Matsuo, Tadashi Tateno