Patents by Inventor Akihiro Suehara

Akihiro Suehara 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).

  • Publication number: 20100055134
    Abstract: To provide a method of efficiently separate protective components of Bordetella pertussis. On the basis of differences in adsorbability to calcium phosphate gel formed by adding calcium ions to a Bordetella pertussis culture in the presence of excess phosphate ions, protective components of Bordetella pertussis are separated from the Bordetella pertussis culture. Traditionally, protective components of Bordetella pertussis have been separated using different purification methods for the respective components. According to the present invention, the use of the same means of purification for all subject components makes it possible to purify each component with high efficiency and high recovery rate, an aspect very advantageous for industrial production. It is also possible to efficiently produce an improved purified pertussis component vaccine comprising an effective combination of pertussis filamentous hemagglutinin (FHA), pertactin (PRN, 69K-OMP), pertussis fimbriae (FIM) and pertussis toxin (PT).
    Type: Application
    Filed: August 27, 2009
    Publication date: March 4, 2010
    Inventors: Akihiro Suehara, Eiji Yamamoto, Shigeo Fujii
  • Publication number: 20090068228
    Abstract: To provide a method of efficiently separate protective components of Bordetella pertussis. On the basis of differences in adsorbability to calcium phosphate gel formed by adding calcium ions to a Bordetella pertussis culture in the presence of excess phosphate ions, protective components of Bordetella pertussis are separated from the Bordetella pertussis culture. Traditionally, protective components of Bordetella pertussis have been separated using different purification methods for the respective components. According to the present invention, the use of the same means of purification for all subject components makes it possible to purify each component with high efficiency and high recovery rate, an aspect very advantageous for industrial production. It is also possible to efficiently produce an improved purified pertussis component vaccine comprising an effective combination of pertussis filamentous hemagglutinin (FHA), pertactin (PRN, 69K-OMP), pertussis fimbriae (FIM) and pertussis toxin (PT).
    Type: Application
    Filed: October 24, 2007
    Publication date: March 12, 2009
    Inventors: Akihiro Suehara, Eiji Yamamoto, Shigeo Fujii
  • Publication number: 20050180987
    Abstract: To provide a method of efficiently separate protective components of Bordetella pertussis. On the basis of differences in adsorbability to calcium phosphate gel formed by adding calcium ions to a Bordetella pertussis culture in the presence of excess phosphate ions, protective components of Bordetella pertussis are separated from the Bordetella pertussis culture. Traditionally, protective components of Bordetella pertussis have been separated using different purification methods for the respective components. According to the present invention, the use of the same means of purification for all subject components makes it possible to purify each component with high efficiency and high recovery rate, an aspect very advantageous for industrial production. It is also possible to efficiently produce an improved purified pertussis component vaccine comprising an effective combination of pertussis filamentous hemagglutinin (FHA), pertactin (PRN, 69K-OMP), pertussis fimbriae (FIM) and pertussis toxin (PT).
    Type: Application
    Filed: April 14, 2005
    Publication date: August 18, 2005
    Inventors: Akihiro Suehara, Eiji Yamamoto, Shigeo Fujii
  • Publication number: 20030133941
    Abstract: To provide a method of efficiently separate protective components of Bordetella pertussis
    Type: Application
    Filed: July 30, 2002
    Publication date: July 17, 2003
    Applicant: Takeda Chemical Industries, Ltd.
    Inventors: Akihiro Suehara, Eiji Yamamoto, Shigeo Fujii
  • Publication number: 20020119161
    Abstract: On the basis of differences in adsorbability to calcium phosphate gel formed by adding calcium ions to a Bordetella pertussis culture in the presence of excess phosphate ions, protective components of Bordetella pertussis are separated from the Bordetella pertussis culture.
    Type: Application
    Filed: July 8, 1999
    Publication date: August 29, 2002
    Inventors: AKIHIRO SUEHARA, EIJI YAMAMOTO, SHIGEO FUJII
  • Patent number: 6051240
    Abstract: To provide a method of efficiently separate protective components of Bordetella pertussis. On the basis of differences in adsorbability to calcium phosphate gel formed by adding calcium ions to a Bordetella pertussis culture in the presence of excess phosphate ions, protective components of Bordetella pertussis are separated from the Bordetella pertussis culture. Traditionally, protective components of Bordetella pertussis have been separated using different purification methods for the respective components. According to the present invention, the use of the same means of purification for all subject components makes it possible to purify each component with high efficiency and high recovery rate, an aspect very advantageous for industrial production. It is also possible to efficiently produce an improved purified pertussis component vaccine comprising an effective combination of pertussis filamentous hemagglutinin (FHA), pertactin (PRN, 69K-OMP), pertussis fimbriae (FIM) and pertussis toxin (PT).
    Type: Grant
    Filed: October 13, 1995
    Date of Patent: April 18, 2000
    Assignee: Takeda Chemical Industries, Ltd.
    Inventors: Akihiro Suehara, Eiji Yamamoto, Shigeo Fujii