Patents by Inventor Hidetaka Egashira

Hidetaka Egashira 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 for crystallizing .alpha.-L-aspartyl-L-phenylalanine methyl ester
    Patent number: 5659066
    Abstract: Described herein is a method for crystallizing aspartame (APM) by cooling an aqueous solution containing APM without forced convection during part of the crystallization, wherein a clear aqueous APM solution is initially cooled under forced convection and forced convection is interrupted, after crystallization has started but before the concentration of the APM crystals formed in the system reaches 0.5% by weight, until the amount of crystals reaches at least 10%, but not more than 50%, of the target amount, and wherein cooling is interrupted for at least part of the time of said interruption of forced convection at about the same time or shortly thereafter.
    Type: Grant
    Filed: March 20, 1996
    Date of Patent: August 19, 1997
    Assignee: Holland Sweetner Company V.o.F.
    Inventors: Tsugio Murakami, Hidetaka Egashira, Kengo Okajima, Hidetoshi Wakamatsu