Patents by Inventor Satoru Furuya
Satoru Furuya 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: 11892787Abstract: A fixing device includes a belt having a tubular shape and extending in a longitudinal direction, and having a longitudinal end, a drive roller to rotate the belt to convey a print medium between the drive roller and the belt, a bushing located at the longitudinal end of the belt, and a guide wall adjacent to the bushing. The belt is displaceable in the longitudinal direction relative to the bushing. The bushing includes a shoulder adjacent to the longitudinal end of the belt and a stem extending from the shoulder to an inside of the belt to support the belt. The guide guides the bushing to move in a direction opposite to a conveyance direction of the print medium when the belt moves toward the bushing. The stem of the bushing includes a convex portion that is in contact with an inner surface of the belt when the belt is displaced in the longitudinal direction.Type: GrantFiled: May 18, 2021Date of Patent: February 6, 2024Assignee: Hewlett-Packard Development Company, L.P.Inventors: Tatsunori Izawa, Takayuki Horie, Yasuo Suzuki, Satoru Furuya, Satoshi Ohwada, Hiroyuki Sato, Koichi Utsunomiya
-
Patent number: 11803147Abstract: An endless belt includes a loop-shaped support and a surface layer formed on the support. The surface layer contains a polymer including, as monomer units, a first monomer having a polymerizable group and an aliphatic ring, a second monomer having a polymerizable group and a fluorine atom, and a third monomer having 4 or more polymerizable groups.Type: GrantFiled: September 23, 2021Date of Patent: October 31, 2023Assignee: Hewlett-Packard Development Company, L.P.Inventors: Keiji Komoto, Satoru Furuya, Satoshi Ohwada
-
Publication number: 20230195014Abstract: A fixing device includes a belt having a tubular shape and extending in a longitudinal direction, and having a longitudinal end, a drive roller to rotate the belt to convey a print medium between the drive roller and the belt, a bushing located at the longitudinal end of the belt, and a guide wall adjacent to the bushing. The belt is displaceable in the longitudinal direction relative to the bushing. The bushing includes a shoulder adjacent to the longitudinal end of the belt and a stem extending from the shoulder to an inside of the belt to support the belt. The guide guides the bushing to move in a direction opposite to a conveyance direction of the print medium when the belt moves toward the bushing. The stem of the bushing includes a convex portion that is in contact with an inner surface of the belt when the belt is displaced in the longitudinal direction.Type: ApplicationFiled: May 18, 2021Publication date: June 22, 2023Inventors: Tatsunori IZAWA, Takayuki HORIE, Yasuo SUZUKI, Satoru FURUYA, Satoshi OHWADA, Hiroyuki SATO, Koichi UTSUNOMIYA
-
Patent number: 11520271Abstract: A gloss treatment device includes an endless belt to convey a print medium in a conveyance direction, a heating roller to heat the print medium, a pressing roller to press the print medium and the endless belt against the heating roller at a nip position, and a charging device located upstream the nip position in the conveyance direction, to charge the print medium with an electrostatic charge.Type: GrantFiled: September 24, 2021Date of Patent: December 6, 2022Assignee: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.Inventors: Satoru Furuya, Keiji Komoto, Yasuo Suzuki
-
Patent number: 11372350Abstract: An imaging apparatus includes a transfer belt, a transfer roller, a conductive roller, and a power source. The transfer roller includes a metal shaft electrically floating during an imaging operation. The conductive roller has an electrical resistance lower than an electrical resistance of the transfer roller. The power source is electrically connected to the conductive roller, and the power source includes a first supply path to supply a first electrical bias to the conductive roller during an imaging operation and a second supply path to supply a second electrical bias to the transfer roller during a cleaning operation.Type: GrantFiled: June 17, 2020Date of Patent: June 28, 2022Assignee: Hewlett-Packard Development Company, L.P.Inventors: Koji Miyake, Satoru Furuya, Shun Ikeura, Satoru Hori, Naoyuki Iwata
-
Publication number: 20220113660Abstract: An endless belt includes a loop-shaped support and a surface layer formed on the support. The surface layer contains a polymer including, as monomer units, a first monomer having a polymerizable group and an aliphatic ring, a second monomer having a polymerizable group and a fluorine atom, and a third monomer having 4 or more polymerizable groups.Type: ApplicationFiled: September 23, 2021Publication date: April 14, 2022Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.Inventors: Keiji KOMOTO, Satoru FURUYA, Satoshi OHWADA
-
Publication number: 20220113668Abstract: A gloss treatment device includes an endless belt to convey a print medium in a conveyance direction, a heating roller to heat the print medium, a pressing roller to press the print medium and the endless belt against the heating roller at a nip position, and a charging device located upstream the nip position in the conveyance direction, to charge the print medium with an electrostatic charge.Type: ApplicationFiled: September 24, 2021Publication date: April 14, 2022Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.Inventors: Satoru FURUYA, Keiji KOMOTO, Yasuo SUZUKI
-
Publication number: 20220100124Abstract: An imaging apparatus includes a transfer belt, a transfer roller, a conductive roller, and a power source. The transfer roller includes a metal shaft electrically floating during an imaging operation. The conductive device has an electrical resistance lower than an electrical resistance of the transfer roller. The power source is electrically connected to the conductive device, and the power source includes a first supply path to supply a first electrical bias to the conductive device during an imaging operation and a second supply path to supply a second electrical bias to the transfer roller during a cleaning operation.Type: ApplicationFiled: June 17, 2020Publication date: March 31, 2022Applicant: Hewlett-Packard Development Company, L.P.Inventors: Koji Miyake, Satoru Furuya, Shun Ikeura, Satoru Hori, Naoyuki Iwata
-
Patent number: 11249424Abstract: An imaging system includes an image carrier to carry a toner image, and a transfer medium having a transfer surface to receive the toner image from the image carrier. The transfer surface of the transfer medium has a resistance component of 14.6 to 17.7 log ?·cm for an alternating current having a frequency range of 1 mHz to 1 Hz.Type: GrantFiled: January 6, 2020Date of Patent: February 15, 2022Assignee: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.Inventors: Satoru Furuya, Shun Ikeura
-
Publication number: 20210389697Abstract: An imaging system includes an image carrier to carry a toner image, and a transfer medium having a transfer surface to receive the toner image from the image carrier. The transfer surface of the transfer medium has a resistance component of 14.6 to 17.7 Iog ?·cm for an alternating current having a frequency range of 1 mHz to 1 Hz.Type: ApplicationFiled: January 6, 2020Publication date: December 16, 2021Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.Inventors: Satoru FURUYA, Shun IKEURA
-
Patent number: 11086264Abstract: A device for removing toner attached to a transfer roller in an image forming apparatus is disclosed. The device includes a bar brush to contact an outer circumferential surface of the transfer roller, where the bar brush extends along a part of a longitudinal length of the transfer roller. The device includes an elongated cleaning member to contact the outer circumferential surface of the transfer roller, where the elongated cleaning member extends along the longitudinal length, entirely, of the transfer roller.Type: GrantFiled: May 22, 2019Date of Patent: August 10, 2021Assignee: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.Inventors: Satoru Furuya, Shun Ikeura, Satoru Hori
-
Patent number: 11079711Abstract: An image forming apparatus includes a rotatable cylindrical component to be cleaned, and a bar brush having a base substrate and bristles. The base substrate of the bar brush is located at a fixed position relative to the component to be cleaned. The bristles extend from the base substrate to contact the component to be cleaned. The bristles have free ends that form a tip end surface of the bar brush. The tip end surface has a curved shape that conforms with a surface of the component, when the bristles are not in contact with the surface to be cleaned.Type: GrantFiled: June 24, 2019Date of Patent: August 3, 2021Assignee: Hewlett-Packard Development Company, L.P.Inventors: Koji Miyake, Satoru Furuya, Kensuke Nakajima, Shun Ikeura
-
Publication number: 20210141331Abstract: A device for removing toner attached to a transfer roller in an image forming apparatus is disclosed. The device includes a bar brush to contact an outer circumferential surface of the transfer roller, where the bar brush extends along a part of a longitudinal length of the transfer roller. The device includes an elongated cleaning member to contact the outer circumferential surface of the transfer roller, where the elongated cleaning member extends along the longitudinal length, entirely, of the transfer roller.Type: ApplicationFiled: May 22, 2019Publication date: May 13, 2021Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.Inventors: Satoru FURUYA, Shun IKEURA, Satoru HORI
-
Publication number: 20190310581Abstract: An image forming apparatus includes a rotatable cylindrical component to be cleaned, and a bar brush having a base substrate and bristles. The base substrate of the bar brush is located at a fixed position relative to the component to be cleaned. The bristles extend from the base substrate to contact the component to be cleaned. The bristles have free ends that form a tip end surface of the bar brush. The tip end surface has a curved shape that conforms with a surface of the component, when the bristles are not in contact with the surface to be cleaned.Type: ApplicationFiled: June 24, 2019Publication date: October 10, 2019Inventors: Koji MIYAKE, Satoru FURUYA, Kensuke NAKAJIMA, Shun IKEURA
-
Patent number: 8600272Abstract: A developing device includes a developer supplying member for supplying developer; and a developer supporting member for supplying the developer supplied from the developer supplying member onto a static latent image supporting member. The developer supplying member includes an outer circumferential portion having an electrical resistivity between 1.2×104 and 1.0×108?.Type: GrantFiled: December 2, 2010Date of Patent: December 3, 2013Assignee: Oki Data CorporationInventor: Satoru Furuya
-
Patent number: 8326192Abstract: A developer supplying member includes a foamed member formed of continuous foams for supplying developer to a developer supporting member. The foamed member has a high resistivity in terms of electrical conductivity through ion conductivity, and has a low resistivity in terms of electrical conductivity after carbon black is attached to foam cell walls thereof.Type: GrantFiled: July 29, 2010Date of Patent: December 4, 2012Assignee: Oki Data CorporationInventor: Satoru Furuya
-
Patent number: 8032065Abstract: A developing device includes a developer supporting member for supporting developer and a developer charging member disposed to face the developer supporting member for charging and supplying the developer to the developer supporting member. The developer supporting member has a surface having a calculated average surface roughness Ra between 0.1 ?m and 0.6 ?m and a surface free energy SFE between 15 mN/m and 26 mN/m. Further, the developer charging member has an Asker F hardness Haf between 24° and 56°.Type: GrantFiled: January 22, 2009Date of Patent: October 4, 2011Assignee: Oki Data CorporationInventor: Satoru Furuya
-
Publication number: 20110135345Abstract: A developing device includes a developer supplying member for supplying developer; and a developer supporting member for supplying the developer supplied from the developer supplying member onto a static latent image supporting member. The developer supplying member includes an outer circumferential portion having an electrical resistivity between 1.2×104 and 1.0×108?.Type: ApplicationFiled: December 2, 2010Publication date: June 9, 2011Inventor: Satoru FURUYA
-
Publication number: 20110064486Abstract: A developing device includes a developer supporting member for attaching developer to a static latent image supporting member supporting a static latent image; and a developer supplying member for supplying developer to the developer supporting member. The developer supporting member has a surface with a static friction coefficient in a range of 0.41 and 1.81. The developer supplying member is pushed against the developer supporting member for a pushing amount in a range of 0.5 mm and 1.5 mm.Type: ApplicationFiled: August 18, 2010Publication date: March 17, 2011Inventor: Satoru FURUYA
-
Publication number: 20110026977Abstract: A developer supplying member includes a foamed member formed of continuous foams for supplying developer to a developer supporting member. The foamed member has a high resistivity in terms of electrical conductivity through ion conductivity, and has a low resistivity in terms of electrical conductivity after carbon black is attached to foam cell walls thereof.Type: ApplicationFiled: July 29, 2010Publication date: February 3, 2011Inventor: Satoru FURUYA