Patents by Inventor Shinpei Ohno

Shinpei Ohno 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).

  • method for forming pattern onto article during injection molding thereof
    Patent number: 5800771
    Abstract: A method for forming a pattern onto an article during injection molding thereof. A pattern-bearing film is heated and softened by a heating board. The softened pattern-bearing film is transferred to the cavity surface of a female mold. Thereafter, the female mold and a male mold are closed. Then, a molten resin is injected into the cavity. When a pattern-bearing film is brought in contact with and heated by the heating board, marks or impressions of air blow holes on the surface of the heating board remain on the pattern-bearing film. To prevent the formation of these marks or impressions, a square-shaped holding frame is fixed on the surface of the heating board. The peripheral portion of the pattern-bearing film is held on the surface of the holding frame. Thus, while the pattern portion of the pattern-bearing film is spaced apart from the surface of the heating board, the film is heated.
    Type: Grant
    Filed: August 7, 1996
    Date of Patent: September 1, 1998
    Assignee: Dai Nippon Printing Co., Ltd.
    Inventor: Shinpei Ohno
  • Method for forming pattern onto article during injection molding thereof
    Patent number: 5603889
    Abstract: A method for forming a pattern onto an article during injection molding thereof. A pattern-bearing film is heated and softened by a heating board. The softened pattern-bearing film is transferred to the cavity surface of a female mold. Thereafter, the female mold and a male mold are closed. Then, a molten resin is injected into the cavity. When a pattern-bearing film is brought in contact with and heated by the heating board, marks or impressions of air blow holes on the surface of the heating board remain on the pattern-bearing film. To prevent the formation of these marks or impressions, a square-shaped holding frame is fixed on the surface of the heating board. The peripheral portion of the pattern-bearing film is held on the surface of the holding frame. Thus, while the pattern portion of the pattern-bearing film is spaced apart from the surface of the heating board, the film is heated.
    Type: Grant
    Filed: January 6, 1995
    Date of Patent: February 18, 1997
    Assignee: Dai Nippon Printing Co., Ltd.
    Inventor: Shinpei Ohno
  • Apparatus for forming a pattern onto an article during injection molding
    Patent number: 5415536
    Abstract: A method for forming a pattern onto an article during injection molding thereof. A pattern-bearing film is heated and softened by a heating board. The softened pattern-bearing film is transferred to the cavity surface of a female mold. Thereafter, the female mold and a male mold are closed. Then, a molten resin is injected into the cavity. When a pattern-bearing film is brought in contact with and heated by the heating board, marks or impressions of air blow holes on the surface of the heating board remain on the pattern-bearing film. To prevent the formation of these marks or impressions, a square-shaped holding frame is fixed on the surface of the heating board. The peripheral portion of the pattern-bearing film is held on the surface of the holding frame. Thus, while the pattern portion of the pattern-bearing film is spaced apart from the surface of the heating board, the film is heated.
    Type: Grant
    Filed: April 23, 1993
    Date of Patent: May 16, 1995
    Assignee: Dai Nippon Printing Co., Ltd.
    Inventor: Shinpei Ohno