Patents by Inventor Kazushi YOKOTA

Kazushi YOKOTA 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).

  • Patent number: 10363868
    Abstract: A vehicle approach notification device includes a speaker disposed between push-pull circuits. The push-pull circuits amplify power of a notification sound signal by their push-pull outputs, and output the amplified notification sound signal to the speaker so that the speaker emits a notification sound for notification of an approach of a vehicle. When the push-pull outputs of the push-pull circuits are stopped, and the microcomputer outputs a high-level signal between a common connection terminal and ground, the microcomputer determines that there is a wire-discontinuity failure in the speaker when a voltage between common connection terminals is equal to or higher than a predetermined value.
    Type: Grant
    Filed: November 22, 2016
    Date of Patent: July 30, 2019
    Assignee: ANDEN CO., LTD.
    Inventors: Chikara Yamamoto, Kazushi Yokota
  • Publication number: 20180334096
    Abstract: A vehicle approach notification device includes a speaker disposed between push-pull circuits. The push-pull circuits amplify power of a notification sound signal by their push-pull outputs, and output the amplified notification sound signal to the speaker so that the speaker emits a notification sound for notification of an approach of a vehicle. When the push-pull outputs of the push-pull circuits are stopped, and the microcomputer outputs a high-level signal between a common connection terminal and ground, the microcomputer determines that there is a wire-discontinuity failure in the speaker when a voltage between common connection terminals is equal to or higher than a predetermined value.
    Type: Application
    Filed: November 22, 2016
    Publication date: November 22, 2018
    Inventors: Chikara YAMAMOTO, Kazushi YOKOTA