Patents by Inventor Inao Oyama

Inao Oyama 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 producing hydrolyzed protein
    Patent number: 6803062
    Abstract: A hydrolyzed protein which can be used as seasonings or the like is produced by heating and maintaining an aqueous dispersion of a protein-containing starting material, while under an acidic condition, with a plate-type heat exchanger using a liquid as a heat medium to make the aqueous dispersion substantially aseptic and then subjecting the resulting aqueous dispersion with an action of a proteolytic enzyme.
    Type: Grant
    Filed: June 28, 2002
    Date of Patent: October 12, 2004
    Assignee: Ajinomoto Co., Inc.
    Inventors: Ko Yamamoto, Junichiro Kojima, Toshimasa Ishii, Inao Oyama, Mitsuyoshi Seki, Hidetsugu Nakazawa
  • Process for producing hydrolyzed protein
    Publication number: 20030012848
    Abstract: A hydrolyzed protein which can be used as seasonings or the like is produced by heating and maintaining an aqueous dispersion of a protein-containing starting material, while under an acidic condition, with a plate-type heat exchanger using a liquid as a heat medium to make the aqueous dispersion substantially aseptic and then subjecting the resulting aqueous dispersion with an action of a proteolytic enzyme.
    Type: Application
    Filed: June 28, 2002
    Publication date: January 16, 2003
    Applicant: Ajinomoto Co., Inc.
    Inventors: Ko Yamamoto, Junichiro Kojima, Toshimasa Ishii, Inao Oyama, Mitsuyoshi Seki, Hidetsugu Nakazawa
  • Method of producing L-glutamic acid by fermentation
    Patent number: 5492818
    Abstract: The present invention provides a method of producing L-glutamic acid by fermentation, comprising the steps ofculturing a mutant of an L-glutamic acid-producing microorganism of the genus Brevibacterium or Corynebacterium which has lower .alpha.-ketoglutaric acid dehydrogenase activity compared with the wild strains from which said mutant is derived, in a liquid nutrient culture medium containing biotin at a concentration of 10 to 1000 .mu.g/l without adding a biotin activity-suppressing substance thereto;producing and accumulating L-glutamic acid in the culture solution; andrecovering L-glutamic acid from said culture solution.According to the method of the present invention, it is possible to industrially produce L-glutamic acid by fermentation in a more economical and efficient manner.
    Type: Grant
    Filed: December 5, 1994
    Date of Patent: February 20, 1996
    Assignee: Ajinomoto Co., Inc.
    Inventors: Hidetsugu Nakazawa, Hiroki Kawashima, Inao Oyama, Keiji Ishii, Yoshio Kawahara