Patents by Inventor Mutsuo Murakami

Mutsuo Murakami 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).

  • Composite semipermeable membrane, processfor producing the same, and method of purifying water with the same
    Patent number: 6406626
    Abstract: The present invention relates to a composite semipermeable membrane which is characterized in that it is a composite semipermeable membrane in which there is formed by polycondensation on top of a microporous support membrane a crosslinked polyamide ultra-thin membrane layer from polyfunctional amine, polyfunctional acid halide and polyfunctional acid anhydride halide, and the flow of water permeate at an operating pressure of 0.3 MPa, a temperature of 25° C. and a pH of 6.5 lies in the range from 0.8 to 4.0 m3/m2.day and, furthermore, the percentage humic acid removal is at least 98%; a method for the production thereof; and a water purification method employing same.
    Type: Grant
    Filed: September 12, 2000
    Date of Patent: June 18, 2002
    Assignee: Toray Industries, Inc.
    Inventors: Mutsuo Murakami, Yasushi Tateishi, Yoshinari Fusaoka
  • Method of treating malignant tumors
    Patent number: 5171738
    Abstract: Lipopolysaccharides derived from the cell walls of Gram-negative bacteria, also known as endotoxins or pyrogens, are immobilized on a solid, insoluble carrier. The blood, blood plasma or blood serum of a tumor-bearing patient is passed over the immobilized lipopolysaccharide-containing blood treating material to treat the patient's tumor.
    Type: Grant
    Filed: August 30, 1989
    Date of Patent: December 15, 1992
    Assignee: Toray Industries, Inc.
    Inventors: Masashi Kodama, Yutaka Katayama, deceased, by Shigemasa Katayama, heir, by Nobuko Katayama, heir, by Yoshimasa Katayama, heir, Toru Tani, Kazuo Teramoto, Mutsuo Murakami