Patents by Inventor Kenich Yarita

Kenich Yarita 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 recovering L-amino acids from fermentation liquors containing them
    Patent number: 4997754
    Abstract: A process for recovering a high-purity L-amino acid from a fermentation liquor obtained by fermentation or an enzymic method, which comprises removing the impurities contained in said fermentation liquor by passing said fermentation liquor through an ultrafilter membrane and then through an ion-exchange or adsorbent resin; concentrating or cooling the effluent thus obtained to result in crystallization of said L-amino acid, and isolation said crystalline L-amino acid from said fermentation liquor.
    Type: Grant
    Filed: August 10, 1987
    Date of Patent: March 5, 1991
    Assignee: Ajinomoto Co., Inc.
    Inventors: Masashi Miyazawa, Toyokazu Kaneko, Tetsuya Kaneko, Kenich Yarita, Shigenori Mori, Kinzo Iitani, Masaki Yamamoto