Patents by Inventor Satoya Sugiura

Satoya Sugiura 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: 10996594
    Abstract: An endless belt includes either a single-layer body including a layer including an imide resin and conductive particles, or a multilayer body including the layer as an outermost layer. The ratio y/x of the layer is 0.8992 or more and 1.0157 or less, where x [log ?/?] is the common logarithm of the surface resistivity of the outer peripheral surface of the layer measured with a ring probe when a voltage of 100 V is applied to the layer for 3 seconds at a load of 1 kg, and y [log ?·cm] is the common logarithm of the volume resistivity of the layer measured with a ring probe when a voltage of 100 V is applied to the layer for 5 seconds at a load of 1 kg.
    Type: Grant
    Filed: April 24, 2020
    Date of Patent: May 4, 2021
    Assignee: FUJI XEROX CO., LTD.
    Inventors: Hiroaki Tanaka, Satoya Sugiura, Daisuke Tanemura, Masato Ono, Masato Furukawa, Shigeru Fukuda, Masayuki Seko, Koichi Matsumoto, Shogo Hayashi, Tomoko Suzuki
  • Patent number: 10976690
    Abstract: Provided is a transfer device that includes an intermediate transfer body which is a first endless belt including a resin and conductive carbon particles and in which in a spatial distribution of the conductive carbon particles that are present in an evaluation region of 6.3 ?m×4.2 ?m on an outer peripheral surface; a first transfer component that first-transfers a toner image formed on a surface of an image carrier to a surface of the intermediate transfer body; and a second transfer component which has a second endless belt disposed so as to face the outer peripheral surface of the intermediate transfer body, which second-transfers the toner image transferred to the surface of the intermediate transfer body to a surface of a recording medium on the second endless belt.
    Type: Grant
    Filed: April 21, 2020
    Date of Patent: April 13, 2021
    Assignee: FUJI XEROX CO., LTD.
    Inventors: Masato Furukawa, Shigeru Fukuda, Futoshi Takei, Satoya Sugiura, Daisuke Tanemura, Masato Ono, Hiroaki Tanaka, Shogo Hayashi, Minoru Rokutan, Tomoko Suzuki, Masayuki Seko, Koichi Matsumoto
  • Patent number: 10935908
    Abstract: A transfer unit includes an intermediate transfer belt including a resin and in which in a spatial distribution of conductive carbon particles that are present in an evaluation region of 6.3 ?m×4.2 ?m on an outer peripheral surface, an integrated value of a statistic L(r) in an interparticle distance r of 0.05 ?m or more and 0.30 ?m or less is 0 or more and 0.1 or less; and a cleaning component including a cleaning blade which contacts the outer peripheral surface of the intermediate transfer belt and in which a value of M100/Re is 0.25 or more and a value of Re is 25 or more where M100 represents a 100% modulus (MPa) of a contact portion of the cleaning blade contacts the intermediate transfer belt, and Re represents a rebound resilience coefficient (%) of the contact portion: L(r):=?{square root over (K(r)/?)}?r??(1) K ? ( r ) := ? i ? j N ? 1 ? ( ? X i - X j ? ? r ) / s ? ( ? X i - X j ? ) ? 2 .
    Type: Grant
    Filed: April 10, 2020
    Date of Patent: March 2, 2021
    Assignee: FUJI XEROX CO.. LTD.
    Inventors: Masayuki Seko, Shigeru Fukuda, Satoya Sugiura, Daisuke Tanemura, Masato Ono, Masato Furukawa, Hiroaki Tanaka, Shogo Hayashi, Koichi Matsumoto, Daisuke Tano
  • Patent number: 10871733
    Abstract: A belt includes a first layer defining an outer peripheral surface of the belt and a second layer arranged adjacent to the first layer. The first and second layers include a polyimide-based resin. The first layer includes carbon black particles. A part of the carbon black particles which are exposed at the outer peripheral surface of the belt have a size of 5 nm or more and 150 nm or less. The area fraction of the part of the carbon black particles which are exposed at the outer peripheral surface of the belt to the outer peripheral surface of the belt is 2% or more and 35% or less. The belt includes 80 or more conducting points per square micrometer and has a volume resistivity of 10 log ?·cm or more.
    Type: Grant
    Filed: October 2, 2019
    Date of Patent: December 22, 2020
    Assignee: FUJI XEROX CO., LTD.
    Inventors: Futoshi Takei, Shigeru Fukuda, Satoya Sugiura, Masato Furukawa, Hiroaki Tanaka
  • Publication number: 20200356029
    Abstract: A belt includes a first layer defining an outer peripheral surface of the belt and a second layer arranged adjacent to the first layer. The first and second layers include a polyimide-based resin. The first layer includes carbon black particles. A part of the carbon black particles which are exposed at the outer peripheral surface of the belt have a size of 5 nm or more and 150 nm or less. The area fraction of the part of the carbon black particles which are exposed at the outer peripheral surface of the belt to the outer peripheral surface of the belt is 2% or more and 35% or less. The belt includes 80 or more conducting points per square micrometer and has a volume resistivity of 10 log ?·cm or more.
    Type: Application
    Filed: October 2, 2019
    Publication date: November 12, 2020
    Applicant: FUJI XEROX CO., LTD.
    Inventors: Futoshi TAKEI, Shigeru FUKUDA, Satoya SUGIURA, Masato FURUKAWA, Hiroaki TANAKA
  • Patent number: 10831133
    Abstract: An endless belt includes a first resin and first conductive carbon particles. In the spatial distribution of the first conductive carbon particles present in an evaluation region of the outer peripheral surface of the endless belt which has a size of 6.3 ?m×4.2 ?m, the integral of the statistic L(r) represented by Formula (1) below from 0.05 ?m to 0.30 ?m with respect to an interparticle distance r is 0 or more and 0.
    Type: Grant
    Filed: April 16, 2020
    Date of Patent: November 10, 2020
    Assignee: FUJI XEROX CO., LTD.
    Inventors: Satoya Sugiura, Shigeru Fukuda, Futoshi Takei, Daisuke Tanemura, Masato Ono, Masato Furukawa, Hiroaki Tanaka, Shogo Hayashi, Tomoko Suzuki, Masayuki Seko, Koichi Matsumoto, Minoru Rokutan
  • Publication number: 20200326645
    Abstract: A transfer belt includes a resin base material layer and a surface layer, wherein the surface layer contains a polyamide-imide resin A, a siloxane-modified imide resin B, and a conductive material.
    Type: Application
    Filed: December 20, 2019
    Publication date: October 15, 2020
    Applicant: FUJI XEROX CO., LTD.
    Inventors: Hiroaki TANAKA, Satoya SUGIURA, Shigeru FUKUDA, Masato FURUKAWA, Futoshi TAKEI
  • Publication number: 20200325333
    Abstract: A polyimide resin film includes: a first layer that contains an imide resin, a bond composition ratio of a sum of a C—N bond and a C—O bond to bonds of all C elements that are present in a surface of the first layer being 4 atm % or more, and a second layer that is provided on the surface of the first layer.
    Type: Application
    Filed: December 18, 2019
    Publication date: October 15, 2020
    Applicant: FUJI XEROX CO., LTD.
    Inventors: Shigeru FUKUDA, Futoshi TAKEI, Satoya SUGIURA, Masato FURUKAWA, Hiroaki TANAKA, Masato ONO
  • Patent number: 10678168
    Abstract: A belt capable of holding a toner image, the belt being used for an image forming apparatus, includes a multilayer structure including a surface layer defining an outer peripheral surface of the belt. The belt has a 5-sec volume resistivity at 100 V of 10.0 log ?·cm or more and 12.5 log ?·cm or less. The outer peripheral surface of the belt has a 3-sec surface resistivity at 100 V of more than 11.0 log ?/sq and 13.5 log ?/sq or less. The difference between a 1-sec surface resistivity of the outer peripheral surface of the belt at 100 V and a 100-sec surface resistivity of the outer peripheral surface of the belt at 100 V is 0.5 or less.
    Type: Grant
    Filed: September 26, 2019
    Date of Patent: June 9, 2020
    Assignee: FUJI XEROX CO., LTD.
    Inventors: Masato Furukawa, Shigeru Fukuda, Satoya Sugiura, Futoshi Takei, Hiroaki Tanaka
  • Patent number: 10185236
    Abstract: An image forming apparatus includes an electrophotographic photoreceptor having a photosensitive layer that includes at least one of a hindered phenol antioxidant and a benzophenone ultraviolet absorber, a charging device, an electrostatic latent image forming device, a developing device, and a transfer device that includes an intermediate transfer belt whose electric field dependence of a volume resistivity is 0.003 or less (log ?·cm)/V in a voltage range of from 500 V to 1,000 V, and transfers a toner image formed on a surface of the electrophotographic photoreceptor onto a recording medium through the intermediate transfer belt and erases charges from the surface of the electrophotographic photoreceptor by applying current to the electrophotographic photoreceptor after the toner image formed on the surface of the electrophotographic photoreceptor has been transferred onto the intermediate transfer belt.
    Type: Grant
    Filed: August 23, 2016
    Date of Patent: January 22, 2019
    Assignee: FUJI XEROX CO., LTD.
    Inventors: Satoya Sugiura, Shigeru Fukuda, Hideki Okamoto, Masahiko Miyamoto
  • Publication number: 20170277047
    Abstract: An image forming apparatus includes an electrophotographic photoreceptor having a photosensitive layer that includes at least one of a hindered phenol antioxidant and a benzophenone ultraviolet absorber, a charging device, an electrostatic latent image forming device, a developing device, and a transfer device that includes an intermediate transfer belt whose electric field dependence of a volume resistivity is 0.003 or less (log ?·cm)/V in a voltage range of from 500 V to 1,000 V, and transfers a toner image formed on a surface of the electrophotographic photoreceptor onto a recording medium through the intermediate transfer belt and erases charges from the surface of the electrophotographic photoreceptor by applying current to the electrophotographic photoreceptor after the toner image formed on the surface of the electrophotographic photoreceptor has been transferred onto the intermediate transfer belt.
    Type: Application
    Filed: August 23, 2016
    Publication date: September 28, 2017
    Applicant: FUJI XEROX CO., LTD.
    Inventors: Satoya SUGIURA, Shigeru FUKUDA, Hideki OKAMOTO, Masahiko MIYAMOTO
  • Patent number: 9098007
    Abstract: A charging member includes a conductive elastic layer, and a conductive surface layer that is disposed on the conductive elastic layer, is in contact with an image holding member, and contains a resin, porous resin particles, and silicone oil, wherein a content of the porous resin particles is from 3 parts by weight to 25 parts by weight based on 100 parts by weight of the resin, and a content of the silicone oil is from 0.1 part by weight to 10 parts by weight based on 100 parts by weight of the resin.
    Type: Grant
    Filed: April 22, 2014
    Date of Patent: August 4, 2015
    Assignee: FUJI XEROX CO., LTD.
    Inventors: Minoru Rokutan, Hidemi Nukada, Satoya Sugiura, Akihiro Nonaka, Takuro Hagiwara, Minoru Oshima
  • Patent number: 9063452
    Abstract: An image forming apparatus includes a charging roller including elastic and surface layers and a photoconductor drum. Initially, the surface layer has a surface roughness Rz of 3-6 ?m, and the layers have an impedance ratio of 0.81 or less in absolute value at a frequency of 800-3000 Hz. After a predetermined time, the surface roughness Rz is reduced by a decrement ?Rz of 0.1-4 ?m. The drum has a film thickness D initially ranging from 20-40 ?m and reduced by a decrement ?D of 5-25 ?m after the predetermined time. Herein, 0.005??Rz/?D?0.8 holds. The impedance ratio is represented as ZE/(ZE+ZS) wherein ZE and ZS represent the respective impedances of the elastic layer and the surface layer, and 100k A4-size recording media recorded with images with an area coverage of 7% are printed in the predetermined time.
    Type: Grant
    Filed: September 30, 2013
    Date of Patent: June 23, 2015
    Assignee: FUJI XEROX CO., LTD.
    Inventors: Takuro Hagiwara, Yoshiki Shimodaira, Yuko Kawase, Satoru Tsuto, Minoru Rokutan, Satoya Sugiura
  • Publication number: 20150125183
    Abstract: A charging member includes a conductive elastic layer, and a conductive surface layer that is disposed on the conductive elastic layer, is in contact with an image holding member, and contains a resin, porous resin particles, and silicone oil, wherein a content of the porous resin particles is from 3 parts by weight to 25 parts by weight based on 100 parts by weight of the resin, and a content of the silicone oil is from 0.1 part by weight to 10 parts by weight based on 100 parts by weight of the resin.
    Type: Application
    Filed: April 22, 2014
    Publication date: May 7, 2015
    Applicant: FUJI XEROX CO., LTD.
    Inventors: Minoru ROKUTAN, Hidemi NUKADA, Satoya SUGIURA, Akihiro NONAKA, Takuro HAGIWARA, Minoru OSHIMA
  • Patent number: 8956793
    Abstract: An electrophotographic photoreceptor includes a conductive support, an undercoat layer that is provided on the conductive support and that has a thickness of from 15 ?m to 40 ?m and has light transmittance of 20% or less with respect to light having a wavelength of 450 nm when the thickness is at least 15 ?m, a charge generation layer that is provided on the undercoat layer, and a charge transport layer that is provided on the charge generation layer and that has a thickness of from 15 ?m to 40 ?m and has light transmittance of 30% or less with respect to light having a wavelength of 450 nm when the thickness is at least 15 ?m.
    Type: Grant
    Filed: August 13, 2012
    Date of Patent: February 17, 2015
    Assignee: Fuji Xerox Co., Ltd.
    Inventors: Kenta Ide, Kosuke Narita, Akihiro Kawasaki, Satoya Sugiura, Akihiro Nonaka, Hirofumi Nakamura, Kazuhiro Koseki, Shigeto Hashiba
  • Patent number: 8808953
    Abstract: An electrophotographic photoreceptor includes a conductive support, and an undercoat layer, a charge generation layer, and a charge transport layer that are provided in this order on the conductive support, wherein the undercoat layer includes at least metallic oxide particles, a reactive acceptor substance including an anthraquinone structure expressed by the following Formula 1, and a binder resin, the charge generation layer includes hydroxygallium phthalocyanine as a charge generation material, and a reflectance of incident light having a wavelength of 780 nm on a surface of the charge generation layer when the charge transport layer is removed is 17% or greater: wherein the anthraquinone structure expressed by Formula 1 is bonded to another structure at a position of *, and thus forms the reactive acceptor substance, and in Formula 1, n1 represents an integer of 1 to 7.
    Type: Grant
    Filed: July 30, 2012
    Date of Patent: August 19, 2014
    Assignee: Fuji Xerox Co., Ltd.
    Inventors: Satoya Sugiura, Shigeto Hashiba, Kazuhiro Koseki, Hirofumi Nakamura, Kenta Ide, Akihiro Nonaka, Kosuke Narita, Akihiro Kawasaki
  • Patent number: 8802337
    Abstract: An electrophotographic photoreceptor includes a support; an undercoat layer which is provided on the support and contains at least a binder resin, metal oxide particles, and an electron-accepting compound having an anthraquinone structure, in which a content of the electron-accepting compound is from 0.5% by weight to 1.5% by weight with respect to the metal oxide particles and a contact angle of the metal oxide particles with respect to water is from 7° to 12°; and a photosensitive layer which is provided on the undercoat layer.
    Type: Grant
    Filed: November 8, 2012
    Date of Patent: August 12, 2014
    Assignee: Fuji Xerox Co., Ltd.
    Inventors: Akihiro Kawasaki, Shigeto Hashiba, Hirofumi Nakamura, Hidemi Nukada, Satoya Sugiura
  • Publication number: 20140219680
    Abstract: An image forming apparatus includes a charging roller including elastic and surface layers and a photoconductor drum. Initially, the surface layer has a surface roughness Rz of 3-6 ?m, and the layers have an impedance ratio of 0.81 or less in absolute value at a frequency of 800-3000 Hz. After a predetermined time, the surface roughness Rz is reduced by a decrement ?Rz of 0.1-4 ?m. The drum has a film thickness D initially ranging from 20-40 ?m and reduced by a decrement ?D of 5-25 ?m after the predetermined time. Herein, 0.005??Rz/?D?0.8 holds. The impedance ratio is represented as ZE/(ZE+ZS) wherein ZE and ZS represent the respective impedances of the elastic layer and the surface layer, and 100 k A4-size recording media recorded with images with an area coverage of 7% are printed in the predetermined time.
    Type: Application
    Filed: September 30, 2013
    Publication date: August 7, 2014
    Applicant: FUJI XEROX CO., LTD.
    Inventors: Takuro HAGIWARA, Yoshiki SHIMODAIRA, Yuko KAWASE, Satoru TSUTO, Minoru ROKUTAN, Satoya SUGIURA
  • Publication number: 20130316275
    Abstract: An electrophotographic photoreceptor includes a support; an undercoat layer which is provided on the support and contains at least a binder resin, metal oxide particles, and an electron-accepting compound having an anthraquinone structure, in which a content of the electron-accepting compound is from 0.5% by weight to 1.5% by weight with respect to the metal oxide particles and a contact angle of the metal oxide particles with respect to water is from 7° to 12°; and a photosensitive layer which is provided on the undercoat layer.
    Type: Application
    Filed: November 8, 2012
    Publication date: November 28, 2013
    Applicant: FUJI XEROX CO., LTD.
    Inventors: Akihiro KAWASAKI, Shigeto HASHIBA, Hirofumi NAKAMURA, Hidemi NUKADA, Satoya SUGIURA
  • Patent number: 8574797
    Abstract: An electrophotographic photoconductor includes a base, an undercoat layer that contains a metal oxide and an electron-accepting material and has a thickness of about 3 ?m or more and about 15 ?m or less, and a photosensitive layer containing a polymer having a repeating unit represented by general formula (1) where R1 and R2 each independently represent a halogen atom, an alkyl group having 1 to 6 carbon atoms, a cycloalkyl group having 5 to 7 carbon atoms, or an aryl group having 6 to 12 carbon atoms; and m and n each independently represent an integer of 0 to 4.
    Type: Grant
    Filed: August 18, 2010
    Date of Patent: November 5, 2013
    Assignee: Fuji Xerox Co., Ltd.
    Inventors: Shigeto Hashiba, Kazuhiro Koseki, Satoya Sugiura, Kenta Ide, Fuyuki Kano