Patents by Inventor Akiyoshi Manabe

Akiyoshi Manabe 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 supercritical extraction and separation of solid samples
    Patent number: 5178735
    Abstract: A method of extracting and separating substances contained in a solid sample, especially from ginkgo leaves, which comprises introducing a supercritical fluid into a dispersion in which the solid sample is dispersed, separating the supercritical fluid containing dissolved substances to be extracted.
    Type: Grant
    Filed: December 28, 1989
    Date of Patent: January 12, 1993
    Assignee: Chlorine Engineers
    Inventors: Akiyoshi Manabe, Tetsuro Yamashita, Katsuhisa Harada, Tsuneo Tokumori, Yoko Sumida
  • Mixed polycarbonate resin composition
    Patent number: 4678845
    Abstract: A polycarbonate resin composition comprising a blend of (A) 1 to 90% by weight of a polycarbonate resin derived from 2,2-bis(4-hydroxyphenyl)propane and (B) 10 to 99% by weight of a polycarbonate resin derived from 1,1-bis(4-hydroxyphenyl)ethane, the amounts of (A) and (B) being based on the total weight of (A) and (B). The composition has improved impact strength and melt flowability while retaining the excellent transparency and heat deformation resistance of the polycarbonate resin (A).
    Type: Grant
    Filed: May 17, 1985
    Date of Patent: July 7, 1987
    Assignee: Teijin Chemicals, Ltd.
    Inventors: Masayoshi Takamatsu, Kouji Hashimoto, Akiyoshi Manabe, Hideyuki Ichihana
  • Method of bypassing electric current of electrolytic cells
    Patent number: 4421614
    Abstract: The method for bypassing the electric current of at least one cell of an electrolytic apparatus includes a series combination of a resistor and a switch connected in parallel to the terminals of the cell to be repaired or replaced. In another embodiment a plurality of said series combinations may be connected in parallel to each other and be connected in parallel to the terminals of the cell to be bypassed.
    Type: Grant
    Filed: December 2, 1981
    Date of Patent: December 20, 1983
    Assignee: Chlorine Engineers Corp. Ltd.
    Inventors: Kenzo Yamaguchi, Yoshinari Take, Akiyoshi Manabe