Patents by Inventor Yoshihide Toyoshima

Yoshihide Toyoshima 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).

  • Voice coil assembly and loudspeaker using the same
    Patent number: 7864977
    Abstract: According to the invention, a whole-surface driven, flat thin loudspeaker that brings about smooth frequency characteristics with split vibration hardly caused is realized, and a voice coil assembly that has high reproduction efficiency and fewer operation failures, and brings about favorable work efficiency in manufacturing and further reduced manufacturing cost, and a loudspeaker using the same are manufactured.
    Type: Grant
    Filed: January 29, 2010
    Date of Patent: January 4, 2011
    Assignee: Onkyo Corporation
    Inventors: Koichi Sadaie, Yoshihide Toyoshima, Hiroyasu Kumo
  • Voice coil assembly, loudspeaker using the same, and method for producing the same
    Patent number: 7848536
    Abstract: A voice coil assembly capable of realizing a flat thin loudspeaker having a high efficiency, reduced divided vibrations, a flat frequency response, and reduced operation defects. The voice coil assembly includes a plurality of internal-winding voice coils, each including a rectangular bobbin having a rectangular cross section and defining a rectangular space therein and an internal rectangular coil fixed to an inner wall surface of the rectangular bobbin defining the rectangular space, wherein an outer wall surface of the rectangular bobbin of one internal-winding voice coil is adhered and fixed to an outer wall surface of the rectangular bobbin of another internal-winding voice coil.
    Type: Grant
    Filed: October 28, 2008
    Date of Patent: December 7, 2010
    Assignee: Onkyo Corporation
    Inventors: Koichi Sadaie, Hiroyasu Kumo, Yoshihide Toyoshima, Satofumi Nagaoka, Yoshinori Ujimoto, Kouichi Abe
  • VOICE COIL ASSEMBLY AND LOUDSPEAKER USING THE SAME
    Publication number: 20100215208
    Abstract: According to the invention, a whole-surface driven, flat thin loudspeaker that brings about smooth frequency characteristics with split vibration hardly caused is realized, and a voice coil assembly that has high reproduction efficiency and fewer operation failures, and brings about favorable work efficiency in manufacturing and further reduced manufacturing cost, and a loudspeaker using the same are manufactured.
    Type: Application
    Filed: January 29, 2010
    Publication date: August 26, 2010
    Inventors: Koichi SADAIE, Yoshihide Toyoshima, Hiroyasu Kumo
  • VOICE COIL ASSEMBLY, LOUDSPEAKER USING THE SAME, AND METHOD FOR PRODUCING THE SAME
    Publication number: 20090116681
    Abstract: A voice coil assembly capable of realizing a flat thin loudspeaker having a high efficiency, reduced divided vibrations, a flat frequency response, and reduced operation defects. The voice coil assembly includes a plurality of internal-winding voice coils, each including a rectangular bobbin having a rectangular cross section and defining a rectangular space therein and an internal rectangular coil fixed to an inner wall surface of the rectangular bobbin defining the rectangular space, wherein an outer wall surface of the rectangular bobbin of one internal-winding voice coil is adhered and fixed to an outer wall surface of the rectangular bobbin of another internal-winding voice coil.
    Type: Application
    Filed: October 28, 2008
    Publication date: May 7, 2009
    Inventors: Koichi SADAIE, Hiroyasu KUMO, Yoshihide TOYOSHIMA, Satofumi NAGAOKA, Yoshinori UJIMOTO, Kouichi ABE