Patents by Inventor Yahiko Nakamura

Yahiko Nakamura 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 of presubstrate treatment for painting utilizing a gas soft nitriding
    Patent number: 4659628
    Abstract: A paint priming method which forms, on the surface part of a ferrous material to be treated, a nitride layer with an adequate depth and preferably .epsilon. phase as a main phase thereof, and with no carbon adhesion to the surface thereof, by carrying out a gas soft nitriding treatment with gas components which generate no free carbon. The nitride layer formed on the surface part of the material is used as a presubstrate on which direct painting is possible, thereby providing a simplified and improved presubstrate treatment for painting.
    Type: Grant
    Filed: July 9, 1985
    Date of Patent: April 21, 1987
    Assignee: Honda Giken Kogyo Kabushiki Kaisha
    Inventors: Teruoki Watanabe, Yahiko Nakamura, Akio Hidaka, Shunji Kobayashi, Hiroyoshi Nozaki