Patents by Inventor Masahisa Ishigami

Masahisa Ishigami 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 the production of fuel compositions
    Patent number: 4455149
    Abstract: A process for producing a dispersion composition suitable for use as a fuel is described, comprising kneading (a) a bituminous substance, (b) a low molecular weight aliphatic alcohol, and (c) water, a water-containing organic compound, or an aqueous organic compound suspension to provide a dispersion composition wherein the aqueous alcohol solution as a dispersed phase is dispersed in the bituminous substance as a continuous phase. By causing the phase inversion of the thus-obtained w/o type dispersion composition by kneading it along with a protective colloid at 5.degree. C. to 60.degree. C., and o/w type dispersion composition suitable for use as a fuel can be produced.
    Type: Grant
    Filed: August 14, 1981
    Date of Patent: June 19, 1984
    Assignees: Maruzen Oil Co., Ltd., Nippon Chemtec Consulting Inc.
    Inventors: Takeo Satake, Masahisa Ishigami, Kunio Arimoto, Yorishige Matsuba, Yoshikazu Inoue, Yusuke Tanaka, Kohei Kanda
  • Method for recovery of iodine
    Patent number: 3992510
    Abstract: A process for recovery of iodine from waste containing iodine or iodine compound, comprising the steps of burning the waste in a cumbustion chamber, and scrubbing out the iodine or iodine compound in the resulting combustion gas with a basic aqueous solution of sodium thiosulfate.
    Type: Grant
    Filed: May 6, 1975
    Date of Patent: November 16, 1976
    Assignee: Harima Chemicals, Inc.
    Inventors: Masahisa Ishigami, Kunio Arimoto, Yoshikazu Inoue, Ryoichi Fujii
  • Method for preparation of emulsifier for emulsion polymerization
    Patent number: 3980630
    Abstract: Method of preparing an emulsifier useable in emulsion polymerization processes, comprising the steps of subjecting rosin, polyunsaturated fatty acid or mixture thereof to disproportionation reaction, in the presence of a catalyst of iron iodide, and then neutralizing with alkali, and use of such emulsifier in emulsion polymerization processes.
    Type: Grant
    Filed: April 30, 1975
    Date of Patent: September 14, 1976
    Assignee: Harima Chemicals Inc.
    Inventors: Masahisa Ishigami, Yoshikazu Inoue