Patents by Inventor Tadao Okano

Tadao Okano 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).

  • Hot melt screen printing machine
    Patent number: 4481881
    Abstract: In a known hot melt screen printing machine the printing ink is heated by an electrical current which is conducted through a stainless steel mesh of a screen plate. In the known machine, the printing accuracy is not good, mainly because of variation of tension and thermal expansion of the mesh.The mesh according to the present invention consists of insulating material fibers and an electroless plating layer formed on the fibers. The plating layer preferably consists of a nickel phosphorous alloy. A squeezing means for forcing the printing ink to pass through a printing pattern and/or a printing base for mounting an article to be printed are provided with a heating means. One of the advantages of the present invention is a high printing accuracy.
    Type: Grant
    Filed: May 16, 1983
    Date of Patent: November 13, 1984
    Assignee: TDK Electronics Co., Ltd.
    Inventor: Tadao Okano
  • Hot melt screen printing machine
    Patent number: 4398462
    Abstract: The present invention consists of insulating material fibers and an electroless plating layer formed on the fibers. The plating layer preferably consists of a nickel phosphorous alloy. A squeezing means for forcing the printing ink to pass through a printing pattern and/or a printing base for mounting an article to be printed are provided with a heating means.
    Type: Grant
    Filed: May 29, 1980
    Date of Patent: August 16, 1983
    Assignee: TDK Electronics Co., Ltd.
    Inventor: Tadao Okano