Patents by Inventor Takeo Naito

Takeo Naito 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).

  • Trans-4-aminomethylcyclohexane-1-carboxylic acid
    Patent number: 3950405
    Abstract: A trans isomer of 4-cyanoncyclohexane-1-carboxylic acid or its lower alkyl ester is reduced in a solvent in the presence of a hydrogenating catalyst, and hydrolyzing the produced ester in case the starting trans-isomer is a lower alkyl ester, then the trans-4-aminomethyl-cyclohexane-1-carboxylic acid is recovered from the reaction mixture.
    Type: Grant
    Filed: June 4, 1969
    Date of Patent: April 13, 1976
    Assignee: Mitsubishi Chemical Industries Ltd.
    Inventors: Atsuji Okano, Shizuo Kadoya, Takeo Naito, Takaaki Aoyagi, Masao Shimizu