Patents by Inventor Shizu Suzuki

Shizu Suzuki 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 and apparatus for producing aromatic carboxylic acid
    Patent number: 5596129
    Abstract: It is contemplated by the present invention to produce a high quality aromatic carboxylic acid by a liquid phase oxidation of an alkylbenzene by contacting it with a molecular oxygen-containing gas in a solvent containing a lower aliphatic carboxylic acid, under exclusion of any acceleration of decomposition of the solvent molecules and danger of explosion accident.
    Type: Grant
    Filed: March 22, 1995
    Date of Patent: January 21, 1997
    Assignee: Mitsui Petrochemical Industries, Ltd.
    Inventors: Norio Murashige, Etsuro Okamoto, Shizu Suzuki