Patents by Inventor Makoto Iyobe

Makoto Iyobe 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).

  • Speaker unit for automotive vehicles
    Patent number: 4365113
    Abstract: A speaker unit for an automotive vehicle including a woofer speaker flush mounted with the rear parcel shelf of the vehicle with a tweeter or medium- and high-range speaker unit mounted to the rear of the woofer speaker. The tweeter speaker is directed toward the passenger compartment of the vehicle. A woofer frame is detachably coupled around the outer edge of the woofer speaker. The woofer frame supports a grill which extends as well over the tweeter speaker. A sound diffuser is positioned over the open surface of the tweeter speaker.
    Type: Grant
    Filed: September 12, 1980
    Date of Patent: December 21, 1982
    Assignee: Pioneer Electronic Corporation
    Inventors: Hiroshi Soma, Makoto Iyobe, Takekazu Iijima, Yutaka Moriyama