Patents by Inventor Fuyuki KANO

Fuyuki KANO 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).

  • Publication number: 20240045353
    Abstract: A cleaning body includes a core, and a foam elastic layer that is disposed by winding a strip-shaped foam elastic member around an outer peripheral surface of the core in a helical shape from one end to the other end of the core, in which the foam elastic layer has cells and a cell skeleton that is a partition wall present between the cells, the cell skeleton has a tip portion protruding on a contact surface of the foam elastic layer with a body to be cleaned, and a diameter of the tip portion is equal to or less than 50 ?m, and in the cells, a ratio Dy/Dx of an average cell diameter Dy in a radial direction of the core to an average cell diameter Dx in a width direction of the foam elastic layer is equal to or greater than 1.2 and equal to or less than 2.1.
    Type: Application
    Filed: March 22, 2023
    Publication date: February 8, 2024
    Applicant: FUJIFILM Business Innovation Corp.
    Inventor: Fuyuki KANO
  • Patent number: 11796933
    Abstract: A conductive member includes a substrate, an elastic layer on the substrate, and a surface layer on the elastic layer. The surface layer contains a conductive agent and has a sea-island structure including a sea containing a first resin and islands containing a second resin. The area occupancy of the islands in a cross section of the surface layer is 10% or more and 50% or less.
    Type: Grant
    Filed: September 8, 2022
    Date of Patent: October 24, 2023
    Assignee: FUJIFILM Business Innovation Corp.
    Inventors: Kenta Yamakoshi, Yukimi Kawabata, Fuyuki Kano
  • Patent number: 11782355
    Abstract: A charging member of a contact charging system that applies only a direct-current voltage to the charging member includes a conductive substrate, an elastic layer disposed on the conductive substrate, and a surface layer disposed on the elastic layer. When measured by an alternating-current impedance method within a range of 1 MHz to 1 mHz in an environment at a temperature of 28° C. and a humidity of 85%, a resistance component R of an impedance within a range of 1 Hz to 100 Hz is 4.0×104 ? or more and 1.0×106 ? or less and an impedance Z within a range of 1 Hz to 100 Hz is over 3.6×104 ? and 3.5×105 ? or less.
    Type: Grant
    Filed: September 6, 2022
    Date of Patent: October 10, 2023
    Assignee: FUJIFILM Business Innovation Corp.
    Inventors: Yukimi Kawabata, Fuyuki Kano, Kenta Yamakoshi
  • Publication number: 20230288833
    Abstract: A conductive member includes a substrate, an elastic layer on the substrate, and a surface layer on the elastic layer. The surface layer contains a conductive agent and has a sea-island structure including a sea containing a first resin and islands containing a second resin. The area occupancy of the islands in a cross section of the surface layer is 10% or more and 50% or less.
    Type: Application
    Filed: September 8, 2022
    Publication date: September 14, 2023
    Applicant: FUJIFILM Business Innovation Corp.
    Inventors: Kenta YAMAKOSHI, Yukimi KAWABATA, Fuyuki KANO
  • Publication number: 20230229097
    Abstract: A charging member of a contact charging system that applies only a direct-current voltage to the charging member includes a conductive substrate, an elastic layer disposed on the conductive substrate, and a surface layer disposed on the elastic layer. When measured by an alternating-current impedance method within a range of 1 MHz to 1 mHz in an environment at a temperature of 28° C. and a humidity of 85%, a resistance component R of an impedance within a range of 1 Hz to 100 Hz is 4.0×104? or more and 1.0×106? or less and an impedance Z within a range of 1 Hz to 100 Hz is over 3.6×104? and 3.5×105? or less.
    Type: Application
    Filed: September 6, 2022
    Publication date: July 20, 2023
    Applicant: FUJIFILM Business Innovation Corp.
    Inventors: Yukimi KAWABATA, Fuyuki KANO, Kenta YAMAKOSHI
  • Patent number: 11520277
    Abstract: A cleaning body includes a core, a foam elastic layer that is disposed to be wound around an outer peripheral surface of the core in a helical shape from one end to the other end of the core, and an adhesive layer that adheres the core and the foam elastic layer, in which a diameter of a tip portion of a cell skeleton protruding on a surface of the foam elastic layer is equal to or less than 50 ?m, and in a case where an inner peripheral length of the foam elastic layer in a cross section of the core in a radial direction is X (mm) and a thickness of the foam elastic layer is Y (mm), a value of X×Y2 is equal to or greater than 45.
    Type: Grant
    Filed: May 19, 2022
    Date of Patent: December 6, 2022
    Assignee: FUJIFILM Business Innovation Corp.
    Inventor: Fuyuki Kano
  • Patent number: 10990058
    Abstract: A cleaning body includes a core and a foamed elastic layer spirally wound around an outer circumferential surface of the core from one end of the core to the other end. An end portion of a cell skeleton protruding from a surface of the foamed elastic layer has an equivalent circle diameter of 50 ?m or less. The foamed elastic layer has a spiral pitch R2 of 5 mm or less and a spiral angle ? of 15° or less.
    Type: Grant
    Filed: August 2, 2020
    Date of Patent: April 27, 2021
    Assignee: FUJI XEROX CO., LTD.
    Inventors: Fuyuki Kano, Yasuhiko Kinuta
  • Patent number: 10802414
    Abstract: A charging device includes a charging roller and a cleaning roller that includes a core and a foamed elastic layer disposed on an outer circumferential surface of the core and that rotates in contact with a surface of the charging roller. The number of ends of a cell skeleton that protrude from a surface of the foamed elastic layer is 25 ends/mm2 or more and 50 ends/mm2 or less. The cleaning roller is disposed in contact with the charging roller such that the compression ratio of the foamed elastic layer is 30% or less. The compression ratio is represented by Equation (1): compression ratio (%)=(r1/2+r2/2?d)/t1×100??Equation (1): where r1 is the outer diameter (mm) of the cleaning roller, r2 is the outer diameter (mm) of the charging roller, d is the interaxial distance (mm) between the charging roller and the cleaning roller, and t1 is the thickness (mm) of the foamed elastic layer of the cleaning roller.
    Type: Grant
    Filed: January 20, 2020
    Date of Patent: October 13, 2020
    Assignee: FUJI XEROX CO., LTD.
    Inventors: Yasuhiko Kinuta, Fuyuki Kano, Akihiro Nonaka, Keiko Matsuki, Kosuke Narita
  • Publication number: 20200301307
    Abstract: A charging device includes: a charging member that charges an image holding member according to a contact charging method, and includes a conductive substrate and a surface layer provided on the conductive substrate; and a clean member that cleans the charging member while contacting the charging member, and includes a shaft and a foamed elastic layer provided on the shaft, wherein a ratio of a distance between irregularities in an axial direction of the surface layer in the charging member (Sm) to a width of a nodal section of a foam cell wall surface protruding from a surface of the foamed elastic layer in the clean member (W) satisfies 2.4?Sm/W?5.9.
    Type: Application
    Filed: July 26, 2019
    Publication date: September 24, 2020
    Applicant: FUJI XEROX CO., LTD.
    Inventors: Kosuke NARITA, Akihiro NONAKA, Hiroko KOBAYASHI, Yasuhiko KINUTA, Fuyuki KANO, Yuki TAGAWA
  • Patent number: 10761449
    Abstract: A charging device includes: a charging member that charges an image holding member according to a contact charging method, and includes a conductive substrate and a surface layer provided on the conductive substrate; and a clean member that cleans the charging member while contacting the charging member, and includes a shaft and a foamed elastic layer provided on the shaft, wherein a ratio of a distance between irregularities in an axial direction of the surface layer in the charging member (Sm) to a width of a nodal section of a foam cell wall surface protruding from a surface of the foamed elastic layer in the clean member (W) satisfies 2.4?Sm/W?5.9.
    Type: Grant
    Filed: July 26, 2019
    Date of Patent: September 1, 2020
    Assignee: FUJI XEROX CO., LTD.
    Inventors: Kosuke Narita, Akihiro Nonaka, Hiroko Kobayashi, Yasuhiko Kinuta, Fuyuki Kano, Yuki Tagawa
  • Patent number: 10754272
    Abstract: A charging device includes a charging member that includes a conductive elastic layer and a conductive surface layer disposed on an outer circumferential surface of the conductive elastic layer and a cleaning member that includes a support and a foamed elastic layer disposed on an outer circumferential surface of the support and having a higher surface free energy than the conductive surface layer of the charging member and that rotates in contact with the conductive surface layer of the charging member.
    Type: Grant
    Filed: August 14, 2019
    Date of Patent: August 25, 2020
    Assignee: FUJI XEROX CO., LTD.
    Inventors: Akihiro Nonaka, Fuyuki Kano
  • Patent number: 10725395
    Abstract: A cleaning member includes a shaft, and a foamed elastic layer that is disposed on an outer surface of the shaft and in which a relationship between a stress Pw generated by 70% compression deformation and a stress Ps generated by 10% compression deformation satisfies Pw/Ps?6.
    Type: Grant
    Filed: April 7, 2019
    Date of Patent: July 28, 2020
    Assignee: FUJI XEROX CO., LTD.
    Inventors: Fuyuki Kano, Yasuhiko Kinuta, Akihiro Nonaka
  • Patent number: 10719027
    Abstract: A cleaning body includes a shaft and an elastic layer disposed by being spirally wound around an outer circumferential surface of the shaft from one end to the other end of the shaft, wherein a relationship between line roughness of a protruding portion formed at an end portion of the elastic layer in a width direction (RaE) and line roughness of a center portion of the elastic layer in the width direction (RaV) satisfies 5?RaE/RaV.
    Type: Grant
    Filed: July 24, 2019
    Date of Patent: July 21, 2020
    Assignee: FUJI XEROX CO., LTD.
    Inventors: Fuyuki Kano, Yasuhiko Kinuta, Akihiro Nonaka
  • Publication number: 20200096892
    Abstract: A cleaning member includes a shaft, and a foamed elastic layer that is disposed on an outer surface of the shaft and in which a relationship between a stress Pw generated by 70% compression deformation and a stress Ps generated by 10% compression deformation satisfies Pw/Ps?6.
    Type: Application
    Filed: April 7, 2019
    Publication date: March 26, 2020
    Applicant: FUJI XEROX CO., LTD.
    Inventors: Fuyuki KANO, Yasuhiko KINUTA, Akihiro NONAKA
  • Publication number: 20190310580
    Abstract: A cleaning member includes a core and first and second foamed elastic layers wound around an outer peripheral surface of the core in a double-helical pattern. The compressive stress F1 of the first foamed elastic layer is greater than the compressive stress F2 of the second foamed elastic layer. The cleaning member cleans a member to be cleaned with the first and second foamed elastic layers in contact with a surface of the member to be cleaned.
    Type: Application
    Filed: August 8, 2018
    Publication date: October 10, 2019
    Applicant: FUJI XEROX CO.,LTD.
    Inventors: Satoshi MIZOGUCHI, Fuyuki KANO
  • Patent number: 10423118
    Abstract: A cleaning member includes a core and first and second foamed elastic layers wound around an outer peripheral surface of the core in a double-helical pattern. The compressive stress F1 of the first foamed elastic layer is greater than the compressive stress F2 of the second foamed elastic layer. The cleaning member cleans a member to be cleaned with the first and second foamed elastic layers in contact with a surface of the member to be cleaned.
    Type: Grant
    Filed: August 8, 2018
    Date of Patent: September 24, 2019
    Assignee: FUJI XEROX CO., LTD.
    Inventors: Satoshi Mizoguchi, Fuyuki Kano
  • Patent number: 10254704
    Abstract: A charging device includes a charging member that charges a member to be charged and a cleaning member that is disposed in contact with a surface of the charging member and that cleans the surface of the charging member. The cleaning member includes a core and two foamed elastic layers disposed adjacent to each other in an axial direction around an outer peripheral surface of the core from one end to another end of the core in a substantially double-helical pattern. The two foamed elastic layers are a first foamed elastic layer having an average skeleton size D1 smaller than an average spacing Sm between irregularities in the surface of the charging member and a second foamed elastic layer having an average skeleton size D2 larger than or equal to the average spacing Sm between the irregularities in the surface of the charging member.
    Type: Grant
    Filed: April 3, 2018
    Date of Patent: April 9, 2019
    Assignee: FUJI XEROX CO., LTD.
    Inventors: Satoshi Mizoguchi, Fuyuki Kano
  • Publication number: 20190094788
    Abstract: A charging device includes a charging member that charges a member to be charged and a cleaning member that is disposed in contact with a surface of the charging member and that cleans the surface of the charging member. The cleaning member includes a core and two foamed elastic layers disposed adjacent to each other in an axial direction around an outer peripheral surface of the core from one end to another end of the core in a substantially double-helical pattern. The two foamed elastic layers are a first foamed elastic layer having an average skeleton size D1 smaller than an average spacing Sm between irregularities in the surface of the charging member and a second foamed elastic layer having an average skeleton size D2 larger than or equal to the average spacing Sm between the irregularities in the surface of the charging member.
    Type: Application
    Filed: April 3, 2018
    Publication date: March 28, 2019
    Applicant: FUJI XEROX CO.,LTD.
    Inventors: Satoshi MIZOGUCHI, Fuyuki KANO
  • Patent number: 10151993
    Abstract: A cleaning member includes a core and an elastic layer that is helically wound around an outer peripheral surface of the core. The elastic layer is divided into three or more elastic layer sections in a width direction, and a width of the elastic layer sections at both ends in the width direction is greater than a width of the one or more elastic layer sections in a central region between the elastic layer sections at both ends in the width direction. Alternatively, the elastic layer is divided into three or more elastic layer sections in the width direction, and a minimum thickness of the elastic layer sections at both ends in the width direction is smaller than a minimum thickness of the one or more elastic layer sections in the central region between the elastic layer sections at both ends in the width direction.
    Type: Grant
    Filed: September 8, 2017
    Date of Patent: December 11, 2018
    Assignee: FUJI XEROX CO., LTD.
    Inventors: Fuyuki Kano, Minoru Rokutan
  • Patent number: 10095147
    Abstract: A cleaning body includes a shaft and an elastic layer that is helically wound around the shaft from one end side to the other end side of the shaft and fixed on the shaft and that cleans a body to be cleaned while the elastic layer rotates. The elastic layer includes a division portion having plural divided segments and having a length of from 20% to 70% of the full length of the elastic layer. The division portion is located in a longitudinal central portion of the elastic layer. In the sectional view perpendicular to the axial direction of the shaft, a minimum thickness part in the longitudinal central portion of the elastic layer is from 5% to 12% thicker than a minimum thickness part in each longitudinal end portion of the elastic layer.
    Type: Grant
    Filed: March 7, 2017
    Date of Patent: October 9, 2018
    Assignee: FUJI XEROX CO., LTD.
    Inventors: Fuyuki Kano, Minoru Rokutan