Patents by Inventor Naoko Uemura

Naoko Uemura 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: 10429785
    Abstract: A fixing belt having high separability is provided. The fixing belt includes a base layer made of a heat-resistant resin, an intermediate layer made of a heat-resistant elastic material disposed on the base layer, and a surface layer made of a fluororesin disposed on the intermediate layer. The surface layer contains 5 to 15 mass % of carbon black having a primary average particle diameter of 10 to 50 ?m.
    Type: Grant
    Filed: January 16, 2019
    Date of Patent: October 1, 2019
    Assignee: KONICA MINOLTA, INC.
    Inventors: Izumi Mukoyama, Naoko Uemura, Akiko Kawamura, Asao Matsushima
  • Publication number: 20190235427
    Abstract: A fixing belt having high separability is provided. The fixing belt includes a base layer made of a heat-resistant resin, an intermediate layer made of a heat-resistant elastic material disposed on the base layer, and a surface layer made of a fluororesin disposed on the intermediate layer. The surface layer contains 5 to 15 mass % of carbon black having a primary average particle diameter of 10 to 50 ?m.
    Type: Application
    Filed: January 16, 2019
    Publication date: August 1, 2019
    Inventors: Izumi MUKOYAMA, Naoko UEMURA, Akiko KAWAMURA, Asao MATSUSHIMA
  • Patent number: 10289045
    Abstract: A fixing belt contains a base layer made of a heat-resistant resin, an elastic layer made of an elastic material, and a release layer, laminated in this order. The elastic layer has a linear thermal expansion coefficient of ?4.0×10?4 (1/K) or more and 1.0×10?4 (1/K) or less.
    Type: Grant
    Filed: March 10, 2017
    Date of Patent: May 14, 2019
    Assignee: KONICA MINOLTA, INC.
    Inventors: Izumi Mukoyama, Hirofumi Koga, Naoko Uemura, Asao Matsushima
  • Patent number: 10185260
    Abstract: A fixing belt includes: a base layer having heat resistance; an elastic layer disposed on the base layer and made of an elastic material; and a releasing layer disposed on the elastic layer, wherein a storage elastic modulus of the base layer is 3.8 to 4.8 GPa.
    Type: Grant
    Filed: September 8, 2017
    Date of Patent: January 22, 2019
    Assignee: KONICA MINOLTA, INC.
    Inventors: Izumi Mukoyama, Hirofumi Koga, Naoko Uemura, Asao Matsushima
  • Patent number: 10139760
    Abstract: Provided is a fixing belt including a base layer, an elastic layer, and a release layer. The release layer has surface geometry including a first uneven profile and a second uneven profile formed on the surface of the first uneven profile. The first uneven profile is represented as a maximum height roughness, Rz, of 5.0 to 100 ?m. The second uneven profile is represented as Rz of 0.5 to 0.9 ?m.
    Type: Grant
    Filed: March 23, 2018
    Date of Patent: November 27, 2018
    Assignee: Konica Minolta, Inc.
    Inventors: Izumi Mukoyama, Naoko Uemura, Asao Matsushima
  • Publication number: 20180284665
    Abstract: Provided is a fixing belt including a base layer, an elastic layer, and a release layer. The release layer has surface geometry including a first uneven profile and a second uneven profile formed on the surface of the first uneven profile. The first uneven profile is represented as a maximum height roughness, Rz, of 5.0 to 100 ?m. The second uneven profile is represented as Rz of 0.5 to 0.9 ?m.
    Type: Application
    Filed: March 23, 2018
    Publication date: October 4, 2018
    Inventors: Izumi MUKOYAMA, Naoko UEMURA, Asao MATSUSHIMA
  • Patent number: 9939764
    Abstract: A fixing belt includes a base layer, an elastic layer made of an elastic material, and a release layer. The elastic layer includes a first elastic layer disposed on a side of the base layer, and a second elastic layer disposed on a side of the release layer. The second elastic layer has a lower hardness than that of the first elastic layer. A Universal hardness of the second elastic layer is 3 to 7 N/mm2. A thickness ratio of the second elastic layer to the elastic layer is 5 to 15%.
    Type: Grant
    Filed: April 6, 2017
    Date of Patent: April 10, 2018
    Assignee: KONICA MINOLTA, INC.
    Inventors: Hirofumi Koga, Izumi Mukoyama, Naoko Uemura
  • Publication number: 20180088500
    Abstract: A fixing belt includes: a base layer having heat resistance; an elastic layer disposed on the base layer and made of an elastic material; and a releasing layer disposed on the elastic layer, wherein a storage elastic modulus of the base layer is 3.8 to 4.8 GPa.
    Type: Application
    Filed: September 8, 2017
    Publication date: March 29, 2018
    Inventors: Izumi MUKOYAMA, Hirofumi KOGA, Naoko UEMURA, Asao MATSUSHIMA
  • Patent number: 9811032
    Abstract: A fixing belt includes a base layer made of a heat-resistant resin, an elastic layer made of an elastic material, and a releasing layer, which are laminated in this order, and the difference between the maximum value and the minimum value of viscoelastic modulus within a range of 100 to 200° C. is 0.8% or less. Further, the viscoelastic modulus of the fixing belt within the range of 100 to 200° C. is within a range of 50 to 62%.
    Type: Grant
    Filed: June 8, 2016
    Date of Patent: November 7, 2017
    Assignee: KONICA MINOLTA, INC.
    Inventors: Hirofumi Koga, Izumi Mukoyama, Naoko Uemura
  • Publication number: 20170308011
    Abstract: A fixing belt includes a base layer, an elastic layer made of an elastic material, and a release layer. The elastic layer includes a first elastic layer disposed on a side of the base layer, and a second elastic layer disposed on a side of the release layer. The second elastic layer has a lower hardness than that of the first elastic layer. A Universal hardness of the second elastic layer is 3 to 7 N/mm2. A thickness ratio of the second elastic layer to the elastic layer is 5 to 15%.
    Type: Application
    Filed: April 6, 2017
    Publication date: October 26, 2017
    Inventors: Hirofumi KOGA, Izumi MUKOYAMA, Naoko UEMURA
  • Publication number: 20170277090
    Abstract: Provided is a fixing belt wherein a base layer made of heat-resistant resin, an elastic layer made of an elastic material, and a release layer are laminated in this order, and the elastic layer has a linear thermal expansion coefficient of ?4.0×10?4 (1/K) or more and 1.0×10?4 (1/K) or less.
    Type: Application
    Filed: March 10, 2017
    Publication date: September 28, 2017
    Inventors: Izumi MUKOYAMA, Hirofumi KOGA, Naoko UEMURA, Asao MATSUSHIMA
  • Publication number: 20160363897
    Abstract: A fixing belt includes a base layer made of a heat-resistant resin, an elastic layer made of an elastic material, and a releasing layer, which are laminated in this order, and the difference between the maximum value and the minimum value of viscoelastic modulus within a range of 100 to 200° C. is 0.8% or less. Further, the viscoelastic modulus of the fixing belt within the range of 100 to 200° C. is within a range of 50 to 62%.
    Type: Application
    Filed: June 8, 2016
    Publication date: December 15, 2016
    Inventors: Hirofumi Koga, Izumi Mukoyama, Naoko Uemura
  • Patent number: 9511335
    Abstract: A manufacturing method of an organic-inorganic composite material includes a flocculation and fusion step to flocculate and fuse composite particles in a liquid medium, the composite particles being formed by inorganic fine particles being coated by coating layers. In one embodiment, an average particle diameter of the inorganic fine particles is 1 nm or larger and 30 nm or smaller.
    Type: Grant
    Filed: December 15, 2014
    Date of Patent: December 6, 2016
    Assignee: KONICA MINOLTA, INC.
    Inventors: Shingo Fujimoto, Fumitaka Mochizuki, Shinichi Hamaguchi, Go Yamaguchi, Yohei Ohno, Ito Koga, Naoko Uemura
  • Publication number: 20150174609
    Abstract: Disclosed is a manufacturing method of an organic-inorganic composite material including a flocculation and fusion step to flocculate and fuse composite particles in a liquid medium, the composite particles being formed by inorganic fine particles being coated by coating layers.
    Type: Application
    Filed: December 15, 2014
    Publication date: June 25, 2015
    Inventors: Shingo FUJIMOTO, Fumitaka MOCHIZUKI, Shinichi HAMAGUCHI, Go YAMAGUCHI, Yohei OHNO, Ito KOGA, Naoko UEMURA
  • Patent number: 7700255
    Abstract: An intermediate transfer material, for use in an image forming apparatus in which a toner image on an electrostatic latent image carrier is transferred onto the intermediate transfer material and the toner image on the intermediate transfer material is further transferred onto a final transfer material, wherein the intermediate transfer material comprises a substrate layer having thereon a surface layer, and the surface layer comprising a cured (meth)acrylic resin. There are also disclosed an image forming method by use of the intermediate transfer material and an image forming apparatus by use of the image forming method.
    Type: Grant
    Filed: February 22, 2007
    Date of Patent: April 20, 2010
    Assignee: Konica Minolta Business Technologies, Inc.
    Inventors: Masahiko Kurachi, Fumitaka Mochizuki, Naoko Uemura
  • Publication number: 20070253752
    Abstract: An intermediate transfer material, for use in an image forming apparatus in which a toner image on an electrostatic latent image carrier is transferred onto the intermediate transfer material and the toner image on the intermediate transfer material is further transferred onto a final transfer material, wherein the intermediate transfer material comprises a substrate layer having thereon a surface layer, and the surface layer comprising a cured (meth)acrylic resin. There are also disclosed an image forming method by use of the intermediate transfer material and an image forming apparatus by use of the image forming method.
    Type: Application
    Filed: February 22, 2007
    Publication date: November 1, 2007
    Applicant: KONICA MINOLTA BUSINESS TECHNOLOGIES, INC.
    Inventors: Masahiko KURACHI, Fumitaka MOCHIZUKI, Naoko UEMURA