Patents by Inventor Hisako Yasui

Hisako Yasui 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).

  • Bacterial strain having anti-allergic activity, and beverage, food and anti-allergic agent comprising cell of the bacterial strain
    Patent number: 10306908
    Abstract: It is an object of the present invention to provide a bacterial strain belonging to Lactobacillus brevis subspecies brevis, which has more potent antiallergic activity than the known lactic acid bacteria strains and produces ?-aminobutyric acid (GABA). It is another object of the present invention to provide beverages and foods containing cells of the aforementioned bacterial strain belonging to Lactobacillus brevis subspecies brevis, as well as antiallergic agents containing them as an active ingredient. The present invention provides a bacterial strain belonging to Lactobacillus brevis subspecies brevis, which: is capable of growing in effervescent alcoholic beverages, produces ?-aminobutyric acid (GABA), and has antiallergic activity.
    Type: Grant
    Filed: April 9, 2015
    Date of Patent: June 4, 2019
    Assignee: Sapporo Holdings Limited
    Inventors: Syuichi Segawa, Yasukazu Nakakita, Yoshihiro Takata, Hisako Yasui
  • BACTERIAL STRAIN HAVING ANTI-ALLERGIC ACTIVITY, AND BEVERAGE, FOOD AND ANTI-ALLERGIC AGENT COMPRISING CELL OF THE BACTERIAL STRAIN
    Publication number: 20150208709
    Abstract: It is an object of the present invention to provide a bacterial strain belonging to Lactobacillus brevis subspecies brevis, which has more potent antiallergic activity than the known lactic acid bacteria strains and produces ?-aminobutyric acid (GABA). It is another object of the present invention to provide beverages and foods containing cells of the aforementioned bacterial strain belonging to Lactobacillus brevis subspecies brevis, as well as antiallergic agents containing them as an active ingredient. The present invention provides a bacterial strain belonging to Lactobacillus brevis subspecies brevis, which: is capable of growing in effervescent alcoholic beverages, produces ?-aminobutyric acid (GABA), and has antiallergic activity.
    Type: Application
    Filed: April 9, 2015
    Publication date: July 30, 2015
    Applicant: SAPPORO BREWERIES LIMITED
    Inventors: Syuichi SEGAWA, Yasukazu Nakakita, Yoshihiro Takata, Hisako Yasui
  • BACTERIAL STRAIN HAVING ANTI-ALLERGIC ACTIVITY, AND BEVERAGE, FOOD AND ANTI-ALLERGIC AGENT COMPRISING CELL OF THE BACTERIAL STRAIN
    Publication number: 20110002901
    Abstract: It is an object of the present invention to provide a bacterial strain belonging to Lactobacillus brevis subspecies brevis, which has more potent antiallergic activity than the known lactic acid bacteria strains and produces ?-aminobutyric acid (GABA). It is another object of the present invention to provide beverages and foods containing cells of the aforementioned bacterial strain belonging to Lactobacillus brevis subspecies brevis, as well as antiallergic agents containing them as an active ingredient. The present invention provides a bacterial strain belonging to Lactobacillus brevis subspecies brevis, which: is capable of growing in effervescent alcoholic beverages, produces ?-aminobutyric acid (GABA), and has antiallergic activity.
    Type: Application
    Filed: August 20, 2007
    Publication date: January 6, 2011
    Applicant: SAPPORO BREWERIES LIMITED
    Inventors: Syuichi Segawa, Yasukazu Nakakita, Yoshihiro Takata, Hisako Yasui
  • Process for enhancing fetus fixation of a pregnant animal to prevent abortion
    Patent number: 5910305
    Abstract: The safe fetus fixation enhancer to stabilize the intrauterine fixation of a fetus contains a bacterial strain of genus Bifidobacterium having an effect of augmenting IgA production as the effective ingredient. The effect of augmenting IgA production is called IgA induction potential, which potential activates and enhances the action of IgA production cells producing secretory-type IgA against antigen. When the fetus fixation enhancer is administered to a mother animal on pregnancy or on the schedule of pregnancy, the action of the secretory-type IgA augmented and produced in the mother body for preventing infection is exerted to prevent and avoid the adverse effects of infectious diseases possibly causing the deciduation of an embryo or a fetus from the uterine wall, whereby the intrauterine fixation of the fetus can be stabilized.
    Type: Grant
    Filed: June 30, 1995
    Date of Patent: June 8, 1999
    Assignee: Kabushiki Kaisha Yakult Honsha
    Inventors: Hisako Yasui, Jun Otsuka, Junko Kiyoshima
  • Bifidobacterium strains having high IgA induction potential
    Patent number: 5192685
    Abstract: The present invention is to provide an easy, rapid method for screening a great amount of substances having IgA induction potential. The IgA induction potential herein mentioned means the potential to activate and enhance the activity of IgA production cells to produce secretory-type IgA in response to antigen. The present invention is to provide bacterial strains of genus Bifidobacterium obtained by the method for screening substances having IgA induction potential. More specifically, the present invention is to provide Bifidobacterium longum YIT 4062, Bifidobacterium breve YIT 4063 and Bifidobacterium breve YIT 4064. The three strains obtained by the present invention have high IgA induction potential.
    Type: Grant
    Filed: April 20, 1990
    Date of Patent: March 9, 1993
    Assignee: Kabushiki Kaisha Yakult Honsha
    Inventors: Hisako Yasui, Kazuhito Hayakawa, Makoto Ohwaki, Tatsuhiko Kan