Patents by Inventor Takahisa Haba

Takahisa Haba 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).

  • Publication number: 20110228949
    Abstract: A speaker device prevents “squeaking” based on the difference between propagation speed of a vibration propagated through a center cap and propagation speed of a vibration propagated through a diaphragm. The speaker device includes a vibrating body (VB), a driving part (magnetic circuit) driving the VB, and a frame supporting the VB and the driving part (magnetic circuit). The VB includes a voice coil (VC), a VC supporting part supporting the VC, a diaphragm group, and a driving member whose inner circumference portion is supported by the VC supporting part and which transmits VC vibration to the diaphragm group. The driving member includes a supporting part supporting the diaphragm group. A first connecting part is provided between the diaphragm group and the driving member and on the inner side with respect to the supporting part. The diaphragm group is connected to the driving member via the first connecting part.
    Type: Application
    Filed: October 31, 2008
    Publication date: September 22, 2011
    Applicants: PIONEER CORPORATION, TOHOKU PIONEER CORPORATION
    Inventors: Takahisa Haba, Hiroya Oizumi, Kyoichi Matsuda, Takuei Nagasawa
  • Publication number: 20050244029
    Abstract: A speaker apparatus including a diaphragm for emitting sound; and a frame for holding the diaphragm, wherein the diaphragm has a bent portion along inner periphery of the frame.
    Type: Application
    Filed: April 29, 2005
    Publication date: November 3, 2005
    Inventors: Koji Takayama, Takahisa Haba
  • Publication number: 20050244030
    Abstract: A speaker apparatus including a diaphragm; a damper which elastically supports the diaphragm at a damper mount portion; and a frame to which the diaphragm and the damper are attached, wherein the frame has at least one aperture on a back side in a sound emitting direction with respect to the damper mount portion.
    Type: Application
    Filed: May 2, 2005
    Publication date: November 3, 2005
    Inventors: Koji Takayama, Takahisa Haba