Patents by Inventor Tomoki UDAGAWA

Tomoki UDAGAWA 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).

  • Patent number: 10525720
    Abstract: A liquid ejecting apparatus includes a liquid ejecting unit provided with a nozzle from which liquid is ejected, a liquid supply flow path connected to a liquid supply source and the liquid ejecting unit, and a pump mechanism that includes a pump chamber provided in the liquid supply flow path and that repeats a suction driving operation and a discharge driving operation such that the liquid flows toward the liquid ejecting unit from the liquid supply source. Before maintenance of the liquid ejecting unit is performed by discharging liquid from the nozzle, the pump mechanism performs the suction driving operation until the amount of liquid accommodated in the pump chamber reaches a set value, which is set in advance.
    Type: Grant
    Filed: June 4, 2018
    Date of Patent: January 7, 2020
    Assignee: Seiko Epson Corporation
    Inventor: Tomoki Udagawa
  • Patent number: 10336079
    Abstract: A liquid ejecting apparatus includes: a liquid ejecting unit that ejects, to a target, a liquid which is supplied from a liquid supply source via a liquid supply channel; a carriage on which the liquid ejecting unit is mounted and which moves with respect to the target; a gas containing chamber mounted on the carriage; and a pump that is disposed outside the carriage of the liquid ejecting apparatus and sends gas out to one system of a gas channel connected to the gas containing chamber and suctions gas from the gas channel.
    Type: Grant
    Filed: July 21, 2017
    Date of Patent: July 2, 2019
    Assignee: Seiko Epson Corporation
    Inventors: Tomoki Udagawa, Seiya Sato, Satoru Kobayashi, Ken Yamagishi
  • Publication number: 20180345677
    Abstract: A liquid ejecting apparatus includes a liquid ejecting unit provided with a nozzle from which liquid is ejected, a liquid supply flow path connected to a liquid supply source and the liquid ejecting unit, and a pump mechanism that includes a pump chamber provided in the liquid supply flow path and that repeats a suction driving operation and a discharge driving operation such that the liquid flows toward the liquid ejecting unit from the liquid supply source. Before maintenance of the liquid ejecting unit is performed by discharging liquid from the nozzle, the pump mechanism performs the suction driving operation until the amount of liquid accommodated in the pump chamber reaches a set value, which is set in advance.
    Type: Application
    Filed: June 4, 2018
    Publication date: December 6, 2018
    Inventor: Tomoki UDAGAWA
  • Publication number: 20180043691
    Abstract: A liquid ejecting apparatus includes: a liquid ejecting unit that ejects, to a target, a liquid which is supplied from a liquid supply source via a liquid supply channel; a carriage on which the liquid ejecting unit is mounted and which moves with respect to the target; a gas containing chamber mounted on the carriage; and a pump that is disposed outside the carriage of the liquid ejecting apparatus and sends gas out to one system of a gas channel connected to the gas containing chamber and suctions gas from the gas channel.
    Type: Application
    Filed: July 21, 2017
    Publication date: February 15, 2018
    Inventors: Tomoki UDAGAWA, Seiya SATO, Satoru KOBAYASHI, Ken YAMAGISHI