Patents by Inventor Akira Ibuka

Akira Ibuka 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).

  • Audio playback device capable of independent operations in dual modes
    Patent number: 7564983
    Abstract: A play-back device includes a body device including: a playback mode setting unit for selecting a plurality of playback modes such as a CD mode, an AM mode and an FM mode; a front side speaker and a rear side headphone for selecting an arbitrary one of the playback modes to output play-back signals in the arbitrary playback mode; a front operation unit for operations relating to the front side; and a rear operation unit for operations relating to the rear side. Further included is a control unit for not accepting but making ineffective an operation to release a mute/pause state, even if done from the rear operation unit, when it is decided that the front side is in the mute/pause state while the front side and the rear side are in a common playback mode.
    Type: Grant
    Filed: September 26, 2003
    Date of Patent: July 21, 2009
    Assignee: Clarion Co., Ltd.
    Inventors: Akira Ibuka, Kuniko Yamasaki, Yoshihide Koyama
  • Play-back device
    Publication number: 20040125703
    Abstract: A play-back device includes a body device including: a playback mode setting unit for selecting a plurality of playback modes such as a CD mode, an AM mode and an FM mode; a front side speaker and a rear side headphone for selecting an arbitrary one of the playback modes to output play-back signals in the arbitrary playback mode; a front operation unit for operations relating to the front side; and a rear operation unit for operations relating to the rear side. Further included is a control unit for not accepting but making ineffective an operation to release a mute/pause state, even if done from the rear operation unit, when it is decided that the front side is in the mute/pause state while the front side and the rear side are in a common playback mode.
    Type: Application
    Filed: September 26, 2003
    Publication date: July 1, 2004
    Applicant: Clarion Co., Ltd.
    Inventors: Akira Ibuka, Kuniko Yamasaki, Yoshihide Koyama