Patents by Inventor Kenji Kaitsuka

Kenji Kaitsuka 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).

  • Fixed amount discharge container
    Patent number: 9669988
    Abstract: A fixed amount discharge container includes: a syringe barrel 3; and a piston 8 inserted in the syringe barrel 3 so as to be movable in a longitudinal direction, thereby defining a fluid chamber between the syringe barrel 3 and the piston 8. One of the syringe barrel 3 and the piston 8 includes a guide 3c that is extended in a longitudinal direction. The other of the syringe barrel 3 and the piston 8 includes a slider 9 that is movable in the guide 3c along with the other of the syringe barrel 3 and the piston 8. The guide 3c is provided with a target position contact portion 3j which the slider 9 contacts when an amount of the fluid chamber is equal to a target amount.
    Type: Grant
    Filed: April 26, 2012
    Date of Patent: June 6, 2017
    Assignee: Santen Pharmaceutical Co., LTD.
    Inventors: Takashi Kojima, Nobuo Yokouchi, Naoki Kato, Kenji Kaitsuka, Takeshi Iida
  • Fixed Amount Discharge Container
    Publication number: 20140124542
    Abstract: A fixed amount discharge container includes: a syringe barrel 3; and a piston 8 inserted in the syringe barrel 3 so as to be movable in a longitudinal direction, thereby defining a fluid chamber between the syringe barrel 3 and the piston 8. One of the syringe barrel 3 and the piston 8 includes a guide 3c that is extended in a longitudinal direction. The other of the syringe barrel 3 and the piston 8 includes a slider 9 that is movable in the guide 3c along with the other of the syringe barrel 3 and the piston 8. The guide 3c is provided with a target position contact portion 3j which the slider 9 contacts when an amount of the fluid chamber is equal to a target amount.
    Type: Application
    Filed: April 26, 2012
    Publication date: May 8, 2014
    Applicant: SANTEN PHARMACEUTICAL CO., LTD.
    Inventors: Takashi Kojima, Nobuo Yokouchi, Naoki Kato, Kenji Kaitsuka, Takeshi Iida