Patents by Inventor Yutaka Ogoshi

Yutaka Ogoshi 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: 4562875
    Abstract: A die-casting method that eliminates the need to inject insulation. By injecting molten metal sufficiently quickly after injecting tip lubricant, die-cast products may be removed from the mold even without injecting isulation. To this end, a movable die may at least begin moving toward a fixed die before tip lubricant is injected. The tip lubricant may be injected from a molten metal pouring port in a shot sleeve or from the movable die toward the shot sleeve. Tip lubricant which has been introduced into the shot sleeve is conveyed into the die cavity by movement of the molten metal, thus coating the die cavity inner surface.
    Type: Grant
    Filed: August 29, 1984
    Date of Patent: January 7, 1986
    Assignee: Nippondense Co., Ltd.
    Inventors: Yutaka Ogoshi, Mitsuyoshi Yokoi, Fumitaka Takehisa, Sumi Yoshikawa