Patents by Inventor Yasuo Kaku

Yasuo Kaku 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).

  • Process for producing spherical graphite castings
    Patent number: 4337816
    Abstract: A process for producing spherical graphite cast iron characterized by arranging a required amount of sphering alloy blocks in the hollow part for making a product of a casting mold and then pouring a melt into the casting mold; and a process for producing compound castings consisting of spherical graphite cast iron and ordinary cast iron characterized by arranging a required amount of sphering alloy blocks in the hollow part for making a product and requiring the strength of the product of a casting mold and pouring an ordinary cast iron melt into the casting mold.
    Type: Grant
    Filed: April 24, 1981
    Date of Patent: July 6, 1982
    Assignee: Mitsubishi Jukogyo Kabushiki Kaisha
    Inventor: Yasuo Kaku