Patents by Inventor Shiori TSUGAWA

Shiori TSUGAWA 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: 11131946
    Abstract: Provided is an intermediate transfer body comprising a layer containing ferroelectric particles, wherein the ferroelectric particles has an average primary particle diameter in the range of 200 nm or less; and when three-dimensional axes of crystal lattices of the ferroelectric particles are a-axis, b-axis, and c-axis, a ratio of lattice constants of the c-axis and the a-axis (c/a) is in the range of 1.006 or more.
    Type: Grant
    Filed: August 24, 2020
    Date of Patent: September 28, 2021
    Assignee: KONICA MINOLTA, INC.
    Inventors: Daisuke Ikeda, Sadaaki Sakamoto, Ito Koga, Shiori Tsugawa
  • Publication number: 20210080874
    Abstract: Provided is an intermediate transfer body comprising a layer containing ferroelectric particles, wherein the ferroelectric particles has an average primary particle diameter in the range of 200 nm or less; and when three-dimensional axes of crystal lattices of the ferroelectric particles are a-axis, b-axis, and c-axis, a ratio of lattice constants of the c-axis and the a-axis (c/a) is in the range of 1.006 or more.
    Type: Application
    Filed: August 24, 2020
    Publication date: March 18, 2021
    Inventors: Daisuke IKEDA, Sadaaki SAKAMOTO, Ito KOGA, Shiori TSUGAWA
  • Publication number: 20200379375
    Abstract: The present invention provides a means capable of achieving both excellent image transferability and thin paper separating property in an intermediate transfer belt. An embodiment of the present invention relates to an intermediate transfer belt including a substrate, in which the substrate contains at least one resin selected from the group consisting of polyimide, polyimide-imide, and polyetherimide and highly dielectric inorganic particles subjected to at least one surface treatment selected from the group consisting of a surface treatment with an oxide of at least one metal selected from the group consisting of aluminum, zinc, tin, lead, silicon, zirconium, and titanium and a surface treatment with a coupling agent.
    Type: Application
    Filed: April 21, 2020
    Publication date: December 3, 2020
    Inventors: Ito KOGA, Sadaaki SAKAMOTO, Shiori TSUGAWA, Daisuke IKEDA
  • Patent number: 10678169
    Abstract: Provided is an intermediate transfer belt for an electrophotographic image forming apparatus including conductor-coated particles in which ferroelectric particles are coated with a conductor.
    Type: Grant
    Filed: November 7, 2019
    Date of Patent: June 9, 2020
    Assignee: KONICA MINOLTA, INC.
    Inventors: Eiichi Yoshida, Sadaaki Sakamoto, Ito Koga, Shiori Tsugawa, Daisuke Ikeda
  • Publication number: 20200159145
    Abstract: An intermediate transfer member that is used for electrophotographic image formation, includes carbon nanotubes and ferroelectric fillers in a base material layer containing a resin material as a principal component.
    Type: Application
    Filed: October 10, 2019
    Publication date: May 21, 2020
    Inventors: Shiori Tsugawa, Sadaaki Sakamoto, Shinichi Hamaguchi, Ito Koga
  • Patent number: 10656568
    Abstract: An intermediate transfer member that is used for electrophotographic image formation, includes carbon nanotubes and ferroelectric fillers in a base material layer containing a resin material as a principal component.
    Type: Grant
    Filed: October 10, 2019
    Date of Patent: May 19, 2020
    Assignee: KONICA MINOLTA, INC.
    Inventors: Shiori Tsugawa, Sadaaki Sakamoto, Shinichi Hamaguchi, Ito Koga
  • Publication number: 20190369527
    Abstract: Provided is an intermediate transfer belt for use in an electrophotographic image-forming apparatus, the intermediate transfer belt containing a polyamide-imide, a conductive agent, and a dispersant, the dispersant having a block polymer structure.
    Type: Application
    Filed: May 3, 2019
    Publication date: December 5, 2019
    Inventors: Eiichi YOSHIDA, Shinichi Hamaguchi, Ito Koga, Shiori Tsugawa, Akira Ohira
  • Patent number: 10437168
    Abstract: Disclosed is an intermediate transfer belt used for an electrophotographic image-forming apparatus, wherein the intermediate transfer belt contains a substrate layer and a surface layer; the intermediate transfer belt has a relative dielectric constant of 15 or more, and a volume resistivity at an applied voltage of 100 V in the range of 1.0×105 to 9.0×109 ?·cm under an environment of temperature of 23° C. and humidity of 50% RH; and the surface layer has a relative dielectric constant of 6 or less.
    Type: Grant
    Filed: February 12, 2019
    Date of Patent: October 8, 2019
    Assignee: KONICA MINOLTA, INC.
    Inventors: Ito Koga, Sadaaki Sakamoto, Shiori Tsugawa, Eiichi Yoshida
  • Publication number: 20190265605
    Abstract: Disclosed is an intermediate transfer belt used for an electrophotographic image-forming apparatus, wherein the intermediate transfer belt contains a substrate layer and a surface layer; the intermediate transfer belt has a relative dielectric constant of 15 or more, and a volume resistivity at an applied voltage of 100 V in the range of 1.0×105 to 9.0×109 ?·cm under an environment of temperature of 23° C. and humidity of 50 % RH; and the surface layer has a relative dielectric constant of 6 or less.
    Type: Application
    Filed: February 12, 2019
    Publication date: August 29, 2019
    Inventors: Ito Koga, Sadaaki Sakamoto, Shiori Tsugawa, Eiichi Yoshida
  • Patent number: 10025234
    Abstract: An intermediate transfer belt includes an elastic layer having a thickness of 200 to 300 ?m, and a surface layer. The intermediate transfer belt has an electrostatic capacity per unit area of 13.5 to 14.5 pF/cm2. The electrostatic capacity has a standard deviation of 200 pF or less.
    Type: Grant
    Filed: November 13, 2017
    Date of Patent: July 17, 2018
    Assignee: KONICA MINOLTA, INC.
    Inventors: Sadaaki Sakamoto, Shiori Tsugawa, Ito Koga
  • Publication number: 20180136589
    Abstract: An intermediate transfer belt includes an elastic layer having a thickness of 200 to 300 ?m, and a surface layer. The intermediate transfer belt has an electrostatic capacity per unit area of 13.5 to 14.5 pF/cm2. The electrostatic capacity has a standard deviation of 200 pF or less.
    Type: Application
    Filed: November 13, 2017
    Publication date: May 17, 2018
    Inventors: Sadaaki SAKAMOTO, Shiori TSUGAWA, Ito KOGA