Patents by Inventor Shigeori Takenaka

Shigeori Takenaka 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).

  • Fluorescent intercalator compound
    Publication number: 20010014452
    Abstract: A water-soluble fluorescent intercalator compound having the formula:
    Type: Application
    Filed: January 31, 2001
    Publication date: August 16, 2001
    Applicant: Fuji Photo Film Co., Ltd.
    Inventors: Yoshihiko Makino, Masashi Ogawa, Makoto Takagi, Shigeori Takenaka
  • Quantitative analysis of biochemical compound utilizing electrochemical reaction
    Patent number: 6261780
    Abstract: A method for quantitatively analyzing a biochemical compound such as glucose or cholesterol is performed by bringing the biochemical compound into contact with double stranded DNA fragments which are fixed onto a surface of an electrode at their one terminals and in which electrochemically active threading intercalators are intercalated, in an aqueous medium under application of electric potential to the electrode in the presence of an oxidase capable of oxidizing the biochemical compound and becoming a reduced oxidase, and detecting an electric current flowing between the electrode and another electrode placed in the aqueous medium.
    Type: Grant
    Filed: January 5, 2000
    Date of Patent: July 17, 2001
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Masashi Ogawa, Shigeori Takenaka, Makoto Takagi