Patents by Inventor Hinonori Fujita

Hinonori Fujita 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).

  • Treating bath, forming a mixed carbide layer of Va-Group elements on a ferrous alloy surface and resulting product
    Patent number: 4202705
    Abstract: A method and treating material are presented for forming a mixed carbide layer of Va-Group elements on the surface of a carbon-containing ferrous-alloy material. The molten bath is made by introducing one or more oxides of Va-Group elements and one or more metals or alloys of Va-Group elements (other than the elements forming the oxides) into a molten bath composed of boric acid, a borate or a mixture thereof. The mixed carbide layer formed on the surface of the article is very smooth, wear resistant and corrosion resistant.
    Type: Grant
    Filed: July 3, 1978
    Date of Patent: May 13, 1980
    Assignee: Kabushiki Kaisha Toyoto Chuo Kenkyusho
    Inventors: Noboru Komatsu, Tohru Arai, Hinonori Fujita