Patents by Inventor Tatsuharu Ito

Tatsuharu Ito 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).

  • Analytical microsyringe with a superelastic plunger
    Patent number: 5063025
    Abstract: An analytical microsyringe includes a syringe body, an injection needle fixed to the inner surface at one end of the syringe body, a linear plunger formed of superelastic wire and a knob integrally fixed to the rear end of the linear plunger. The linear plunger has the front end thereof formed to have a diameter large enough to tightly and slidably contact the inner surface of the syringe body and a portion thereof other than the large-diameter front end formed to have a smaller diameter and keep clear of the inner surface of the syringe body.
    Type: Grant
    Filed: February 20, 1990
    Date of Patent: November 5, 1991
    Assignee: Ito Corporation
    Inventor: Tatsuharu Ito