Patents by Inventor Kazutoshi Higashi

Kazutoshi Higashi 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).

  • Manufacturing method of resin damper having foamed resin seal material
    Patent number: 5690881
    Abstract: The present invention relates to a manufacturing method for a damper which is effective when used for a car air conditioner as a air flow switching door.A resin damper body to which surfaces foaming resin seal materials are joined is formed by setting the foaming resin seal materials within mold spaces beforehand and then injecting the resin thereinto, and during which process the damper body and the seal materials are joined together. Particularly, the structure of the metal molds, the structure of an injection nozzle, and the shape of the seal materials are improved in order to improve the shape of the seal materials and the shape of the damper body during the injection molding.
    Type: Grant
    Filed: May 13, 1994
    Date of Patent: November 25, 1997
    Assignees: Nippondenso Co., Ltd., Shimizu Industry Co., Ltd.
    Inventors: Takaaki Horie, Kazutoshi Higashi