Patents by Inventor Reika Yomogida

Reika Yomogida 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: 9522532
    Abstract: There is provided an ink jet recording apparatus equipped with an ink for ink jet recording, and a discharge unit that discharges a liquid droplet of the ink onto a recording medium, wherein the ink contains at least a colorant, a polymer particle, a water-soluble organic solvent, and water, and has a dynamic surface tension after 1 msec of 32 mN/m or less, a dynamic surface tension after 1 sec of less than 30 mN/m, when the dynamic surface tension is measured by a maximum bubble pressure method, and has a variation width in the dynamic surface tension for the period from 1 msec after to 1 sec after of from 0.2 mN/m to 3.0 mN/m, a recording speed is from 10 m/min to 50 m/min.
    Type: Grant
    Filed: February 12, 2015
    Date of Patent: December 20, 2016
    Assignee: Fuji Xerox Co., Ltd.
    Inventors: Hirohito Yoneyama, Hiroyuki Ueki, Mami Hatanaka, Reika Yomogida
  • Patent number: 9469099
    Abstract: There is provided a recording apparatus equipped with an ejection head that ejects an ink to a surface of the undercoat layer of an impermeable recording medium that has, on at least one surface thereof, an undercoat layer containing a polymeric compound selected from the group consisting of polyurethane, polyester, polyvinyl chloride, and polyolefin, wherein the ink contains a coloring agent, a polymer particle, water, and a water-soluble organic solvent and has a static surface tension of less than 30 mN/m and, when examined for dynamic surface tension by a maximum bubble pressure method, has a width of variation in dynamic surface tension for the period from 1 msec after to 1 sec after of from 0.2 mN/m to 3.0 mN/m.
    Type: Grant
    Filed: January 29, 2015
    Date of Patent: October 18, 2016
    Assignee: Fuji Xerox Co., Ltd.
    Inventors: Hirohito Yoneyama, Hiroyuki Ueki, Mami Hatanaka, Reika Yomogida
  • Publication number: 20160082726
    Abstract: There is provided an ink jet recording apparatus equipped with an ink for ink jet recording, and a discharge unit that discharges a liquid droplet of the ink onto a recording medium, wherein the ink contains at least a colorant, a polymer particle, a water-soluble organic solvent, and water, and has a dynamic surface tension after 1 msec of 32 mN/m or less, a dynamic surface tension after 1 sec of less than 30 mN/m, when the dynamic surface tension is measured by a maximum bubble pressure method, and has a variation width in the dynamic surface tension for the period from 1 msec after to 1 sec after of from 0.2 mN/m to 3.0 mN/m, a recording speed is from 10 m/min to 50 m/min.
    Type: Application
    Filed: February 12, 2015
    Publication date: March 24, 2016
    Inventors: Hirohito Yoneyama, Hiroyuki Ueki, Mami Hatanaka, Reika Yomogida
  • Publication number: 20160023456
    Abstract: There is provided a recording apparatus equipped with an ejection head that ejects an ink to a surface of the undercoat layer of an impermeable recording medium that has, on at least one surface thereof, an undercoat layer containing a polymeric compound selected from the group consisting of polyurethane, polyester, polyvinyl chloride, and polyolefin, wherein the ink contains a coloring agent, a polymer particle, water, and a water-soluble organic solvent and has a static surface tension of less than 30 mN/m and, when examined for dynamic surface tension by a maximum bubble pressure method, has a width of variation in dynamic surface tension for the period from 1 msec after to 1 sec after of from 0.2 mN/m to 3.0 mN/m.
    Type: Application
    Filed: January 29, 2015
    Publication date: January 28, 2016
    Inventors: Hirohito Yoneyama, Hiroyuki Ueki, Mami Hatanaka, Reika Yomogida