Patents by Inventor Ayaaki Ishizaki

Ayaaki Ishizaki 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 continuous culture of anaerobic bacterium
    Publication number: 20050070004
    Abstract: In a method for continuous culture of the anaerobic microorganisms that is active cell population is maintained constant when the fermentation is operating continuously by feeding substrate and alkaline alternatively, residual glucose concentration of the culture liquid can be controlled by feeding the substrate that rate is equal to alkaline consumption rate.
    Type: Application
    Filed: March 19, 2003
    Publication date: March 31, 2005
    Inventors: Ayaaki Ishizaki, Toshiro Omori, Yoshifumi Furuta, Yasufumi Umemoto
  • Bacteria culture and fermentation using the same
    Patent number: 5026641
    Abstract: A process for culturing bacteria is disclosed in which is utilized as a bacterial nutrition a serum byproduced upon treatment of a natural rubber latex. The serum has an ample supply, a low cost, a stable quality and a sufficient activity over a wide variety of bacteria, thus contributing to accelerative growth for aerobic and anaerobic bacteria.
    Type: Grant
    Filed: February 24, 1989
    Date of Patent: June 25, 1991
    Assignees: The Yokohama Rubber Co., Ltd., The Board of The Rubber Research Institute of Malaysia
    Inventor: Ayaaki Ishizaki
  • Method for producing amino acids by culturing hydrogen-oxidizing bacteria
    Patent number: 3943038
    Abstract: Amino acids are produced by culturing hydrogen-oxidizing bacteria of the genus Arthrobacter, Brevibacterium and Mycobacterium in an aqueous culture medium in the presence of oxygen, hydrogen and carbon dioxide.
    Type: Grant
    Filed: August 13, 1974
    Date of Patent: March 9, 1976
    Assignee: Ajinomoto Co., Inc.
    Inventors: Yasushi Morinaga, Ayaaki Ishizaki, Shin-ichiro Otsuka