Patents by Inventor Yoshinori Wakiyama

Yoshinori Wakiyama 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 denitrating catalysts
    Patent number: 4040981
    Abstract: A denitrating catalyst is produced by plating the surface of unactivated metal with aluminum and immersing the resulting layered product in an aqueous aluminum-dissolving solution to dissolve out the aluminum into the aqueous solution and to thereby activate the surface of the metal.
    Type: Grant
    Filed: June 24, 1976
    Date of Patent: August 9, 1977
    Assignee: Hitachi Shipbuilding & Engineering Co., Ltd.
    Inventors: Hideya Inaba, Masayoshi Ichiki, Yoshinori Wakiyama