Patents by Inventor Seiji Otaka

Seiji Otaka 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).

  • Patent number: 9534060
    Abstract: An object of the present invention is to provide a carrier on which Protein A has been immobilized, the Protein A having a specific amino acid sequence that permits the desorption of antibodies under mild pH conditions (specifically, pH 4.0 to 5.5) in which many antibodies do not undergo acid modification; and a manufacturing method for the carrier.
    Type: Grant
    Filed: June 11, 2013
    Date of Patent: January 3, 2017
    Assignee: Osaka Soda Co., Ltd.
    Inventors: Masahiro Iwakura, Kiyonori Hirota, Seiji Otaka
  • Publication number: 20150152195
    Abstract: An object of the present invention is to provide a carrier on which Protein A has been immobilized, the Protein A having a specific amino acid sequence that permits the desorption of antibodies under mild pH conditions (specifically, pH4.0 to 5.5) in which many antibodies do not undergo acid modification; and a manufacturing method for the carrier.
    Type: Application
    Filed: June 11, 2013
    Publication date: June 4, 2015
    Applicant: DAISO CO., LTD.
    Inventors: Masahiro Iwakura, Kiyonori Hirota, Seiji Otaka