Patents by Inventor Keita Yonai

Keita Yonai 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).

  • Apparatus for stereophonic sound positioning
    Patent number: 8213646
    Abstract: A stereophonic apparatus uses three speakers respectively installed toward a front of a vehicle on both shoulders of a seat back of a driver's seat and toward a back of the vehicle on an exact center in front of a driver. This configuration provides more effectively exerted positioning effects for a virtual sound source realized by using the three speakers, especially for the effects in a frontward field of sound.
    Type: Grant
    Filed: June 18, 2009
    Date of Patent: July 3, 2012
    Assignee: DENSO CORPORATION
    Inventors: Yuji Matsumoto, Sei Iguchi, Wataru Kobayashi, Kazuhiko Furuya, Keita Yonai
  • Apparatus for stereophonic sound positioning
    Publication number: 20090316939
    Abstract: A stereophonic apparatus uses three speakers respectively installed toward a front of a vehicle on both shoulders of a seat back of a driver's seat and toward a back of the vehicle on an exact center in front of a driver. This configuration provides more effectively exerted positioning effects for a virtual sound source realized by using the three speakers, especially for the effects in a frontward field of sound.
    Type: Application
    Filed: June 18, 2009
    Publication date: December 24, 2009
    Applicant: DENSO CORPORATION
    Inventors: Yuji Matsumoto, Sei Iguchi, Wataru Kobayashi, Kazuhiko Furuya, Keita Yonai