Patents by Inventor Mikiya Kano

Mikiya Kano 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 preparing .alpha.-l-aspartyl-l-phenylalanine methyl ester hydrochloride
    Patent number: 5292923
    Abstract: A method of preparing .varies.-L-aspartyl-L-phenylalanine methyl ester hydrochloride (.varies.-APM.HCL) from a reaction mixture of N-formyl-L-aspartic acid anhydride and L-phenylalanine methyl ester (PM), wherein .alpha.-APM.HCl is produced without isolating an intermediate by solid-liquid separation during the course of the reaction process.
    Type: Grant
    Filed: May 21, 1992
    Date of Patent: March 8, 1994
    Assignee: Ajinomoto Co., Inc.
    Inventors: Toshihisa Kato, Shinichi Kishimoto, Hideo Takeda, Mikiya Kano, Tadashi Takemoto
  • Method of crystallizing phenylalanine
    Patent number: 5118840
    Abstract: A method of crystallizing phenylalanine in the form of .alpha.-crystals at a temperature below .alpha..fwdarw..beta. transition temperature comprises:forming an aqueous solution of phenylalanine at a temperature above the .alpha..fwdarw..beta. transition temperature, the aqueous solution of phenylalanine including:(1) a specified amount of Nacl, or(2) NH.sub.4 Cl and a small amount of a surfactant; and cooling the solution below the .alpha..fwdarw..beta. transition temperature.
    Type: Grant
    Filed: July 12, 1991
    Date of Patent: June 2, 1992
    Assignee: Ajinomoto Co., Inc.
    Inventors: Mikiya Kano, Shinji Fujita, Tadashi Takemoto, Toshihisa Kato, Naoko Sugiyama