Patents by Inventor Sakae Tajima

Sakae Tajima 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).

  • Patent number: 4142948
    Abstract: Disclosed is an aqueous chromium deposition solution containing chromium in the trivalent state, from which a bright decorative chromium plate can be advantageously formed. The chromium deposition solution contains (a) a water-soluble trivalent chromium salt; (b) at least one compound selected from unsubstituted and amino- or hydroxy-substituted carboxylic acids and salts thereof; (c) a water-soluble aluminum salt, and; (d) ammonium ion.
    Type: Grant
    Filed: February 27, 1978
    Date of Patent: March 6, 1979
    Assignee: Toyo Soda Manufacturing Co., Ltd.
    Inventors: Sakae Tajima, Takashi Mouri, Shigeyoshi Morisaki