Patents by Inventor Mitsunari Okamoto

Mitsunari Okamoto 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).

  • Diffusion-limiting membrane holding means for sensor
    Patent number: 4929330
    Abstract: A diffusion-limiting membrane holding means for a sensor comprising: a slender resilient thin plate, of which one shorter side serves as an engagement side, and of which one longer side is provided at its predetermined position with an engagement portion, an opening being formed in the thin plate between the engagement side and the engagement portion; and a diffusion-limiting membrane integrally attached to the thin plate as covering the opening; whereby the resliency of the thin plate causes the diffusion-limiting membrane to be stuck to the surface of an enzyme electrode unit of a sensor, thus enhancing the accuracy of concentration measurement of a target substance to be measured.
    Type: Grant
    Filed: October 16, 1989
    Date of Patent: May 29, 1990
    Assignee: Daikin Industries, Ltd.
    Inventors: Tatsuhiko Osaka, Hiroshi Terawaki, Mitsunari Okamoto
  • Portable automatic blood glucose analyzer
    Patent number: D351469
    Type: Grant
    Filed: June 1, 1992
    Date of Patent: October 11, 1994
    Assignee: Daikin Industries, Ltd.
    Inventors: Mitsunari Okamoto, Shunji Maeda