Patents by Inventor Akihiko Yagi

Akihiko Yagi 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).

  • Infusion state detection system
    Patent number: 10744259
    Abstract: An infusion state detection system includes: a pump unit configured to deliver a liquid in an infusion line; a pressure detector configured to detect a pressure in the infusion line; and a determination processing unit configured to: when the pressure detected by the pressure detector is at a predetermined value or above, stop driving of the pump unit for a stop period, and determine an infusion state on the basis of a value of the pressure detected by the pressure detector during the stop period.
    Type: Grant
    Filed: September 15, 2017
    Date of Patent: August 18, 2020
    Assignee: TERUMO KABUSHIKI KAISHA
    Inventor: Akihiko Yagi
  • INFUSION STATE DETECTION SYSTEM
    Publication number: 20180001022
    Abstract: An infusion state detection system includes: a pump unit configured to deliver a liquid in an infusion line; a pressure detector configured to detect a pressure in the infusion line; and a determination processing unit configured to: when the pressure detected by the pressure detector is at a predetermined value or above, stop driving of the pump unit for a stop period, and determine an infusion state on the basis of a value of the pressure detected by the pressure detector during the stop period.
    Type: Application
    Filed: September 15, 2017
    Publication date: January 4, 2018
    Applicant: TERUMO KABUSHIKI KAISHA
    Inventor: Akihiko YAGI
  • Extravasation detecting apparatus and infusion system
    Patent number: 9687605
    Abstract: An extravasation detecting apparatus is provided which is capable of detecting at an early stage the dislodgment of a tip opening of a solution supplying tool from a blood vessel.
    Type: Grant
    Filed: June 23, 2011
    Date of Patent: June 27, 2017
    Assignee: TERUMO KABUSHIKI KAISHA
    Inventors: Akihiko Yagi, Takahiro Souma
  • EXTRAVASATION DETECTING APPARATUS AND INFUSION SYSTEM
    Publication number: 20130310743
    Abstract: An extravasation detecting apparatus is provided which is capable of detecting at an early stage the dislodgment of a tip opening of a solution supplying tool from a blood vessel.
    Type: Application
    Filed: June 23, 2011
    Publication date: November 21, 2013
    Applicant: Terumo Kabushiki Kaisha
    Inventors: Akihiko Yagi, Takahiro Souma
  • Josephson transmission line device
    Patent number: 4749888
    Abstract: A Josephson transmission line device comprising a Josephson transmission line consisting of a pair of superconducting layers and a junction layer disposed between the superconducting layers to constitute a Josephson junction; a fluxon stopping position constituted by at least one resistor element in at least a part of the Josephson transmission line; a fluxon driving current source connected to the resistor element; a fluxon generating current source connected to the Josephson transmission line for generating fluxons therein; and an output circuit for extracting the fluxons generated in the Josephson transmission line as output signals. Fluxons generated in the Josephson transmission line can be made to stop at and depart from the stopping positions by selective application of fluxon driving current.
    Type: Grant
    Filed: May 4, 1987
    Date of Patent: June 7, 1988
    Assignees: Agency of Industrial Science & Technology, Ministry of International Trade & Industry
    Inventors: Shigeki Sakai, Hiroshi Akoh, Hisao Hayakawa, Akihiko Yagi