Patents by Inventor Hisao Itou

Hisao Itou 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 PRODUCING L-AMINO ACID BY FERMENTATION
    Publication number: 20060216796
    Abstract: L-threonine or L-isoleucine is produced by culturing a bacterium which belongs to the genus Escherichia and has an ability to produce L-threonine or L-isoleucine, and wherein expression of a threonine operon is directed by its native promoter, and from which at least a leader sequence and an attenuator are deleted, in a medium and collecting the L-threonine or L-isoleucine from the medium.
    Type: Application
    Filed: May 11, 2006
    Publication date: September 28, 2006
    Inventors: Kenichi Hashiguchi, Yuta Nakai, Hisao Itou
  • Process for aerobic culture using sintered metal membrane
    Patent number: 6534305
    Abstract: A process for aerobic culture in which ammonia and oxygen are simultaneously supplied, comprising: dispersing and supplying air, oxygen, or a mixed gas thereof into a culture tank through a sintered metal membrane attached the end of a diffusing pipe, and simultaneously, dispersing and supplying ammonia or a mixed gas of ammonia and air into the culture tank through a diffusing pipe other than the above diffusing pipe.
    Type: Grant
    Filed: December 21, 2001
    Date of Patent: March 18, 2003
    Assignee: Ajinomoto Co., Inc.
    Inventors: Atsushi Okada, Yoshitaka Teratani, Naohiro Kadota, Hisao Itou, Kazuhiro Satou
  • Process for aerobic culture using sintered metal membrane
    Publication number: 20020123125
    Abstract: A process for aerobic culture in which ammonia and oxygen are simultaneously supplied, comprising: dispersing and supplying air, oxygen, or a mixed gas thereof into a culture tank through a sintered metal membrane attached the end of a diffusing pipe, and simultaneously, dispersing and supplying ammonia or a mixed gas of ammonia and air into the culture tank through a diffusing pipe other than the above diffusing pipe.
    Type: Application
    Filed: December 21, 2001
    Publication date: September 5, 2002
    Applicant: AJINOMOTO CO., INC
    Inventors: Atsushi Okada, Yoshitaka Teratani, Naohiro Kadota, Hisao Itou, Kazuhiro Satou
  • Inhibition of deposition of radioactive substances on nuclear power plant components
    Patent number: 4828790
    Abstract: A nuclear power plant wherein surfaces of components contacting with nuclear reactor cooling water containing radioactive substances are coated with an oxide film, preferably being charged positively and/or containing chromium in an amount of 12% by weight or more, is prevented effectively from the deposition of radioactive substances thereon.
    Type: Grant
    Filed: November 6, 1987
    Date of Patent: May 9, 1989
    Assignee: Hitachi, Ltd.
    Inventors: Takashi Honda, Yasumasa Furutani, Kenya Ohashi, Eiji Kashimura, Akira Minato, Katsumi Ohsumi, Hisao Itou
  • Method of removing oxide on metal surface
    Patent number: 4588488
    Abstract: An object to-be-washed bearing an oxide on the surface of a parent material metal is immersed in a liquid containing a complexing agent, electrons having energy levels on the base side with respect to the Fermi level of the oxide are generated outside the parent material metal by supplying external energy, and the electrons are injected into the oxide of the object to-be-washed immersed in the liquid.
    Type: Grant
    Filed: June 6, 1984
    Date of Patent: May 13, 1986
    Assignees: Hitachi, Ltd., Hitachi Engineering Co., Ltd.
    Inventors: Osao Sumita, Masayuki Saito, Hisao Itou, Masahito Kobayashi, Yasumasa Furutani