Patents by Inventor Gohki Kakemoto

Gohki Kakemoto 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 manufacturing phenols from lignin
    Patent number: 4900873
    Abstract: Phenols such as cresol, phenol and xylenol etc. are obtained by thermal decomposition of a lignin-containing material in a state of a mixture of the lignin-containing material and a double ring aromatic hydrocarbon solvent.Spent liquid of a solvolysis pulping process can be used as the lignin-containing raw material in the present invention for manufacturing phenols, and the phenols obtained can be utilized as the solvent in the solvolysis process resulting in cost reduction in the pulp production process by self-supplying the necessary solvent in the solvolysis process.
    Type: Grant
    Filed: September 19, 1988
    Date of Patent: February 13, 1990
    Assignees: JGC Corporation, Japan Pulp & Paper Research Institute, Inc.
    Inventors: Gohki Kakemoto, Hiroshi Sagara, Noriyuki Suzuki, Shogo Kachi