公开(公告)号：US12111590B2

公开(公告)日：2024-10-08

申请号：US18153106

申请日：2023-01-11

Applicant: FUJIFILM Business Innovation Corp.

Inventor： Kenji Omori ,  Hideaki Ohara ,  Ryohei Yoshikawa

IPC: G03G15/20

CPC classification number: G03G15/2025 ,  G03G15/2064

Abstract: A fixing device includes: a first rotatable member; a second rotatable member disposed in contact with the first rotatable member; a pressing member that is disposed on an inner circumferential surface of the second rotatable member and presses the inner circumferential surface of the second rotatable member such that the second rotatable member is pressed against the first rotatable member; a sliding member interposed between the inner circumferential surface of the second rotatable member and the pressing member; and a lubricant interposed between the inner circumferential surface of the second rotatable member and the sliding member. The inner circumferential surface of the second rotatable member contains a resin having at least one group selected from the group consisting of an amido group, an imido group, a ketone group, and a sulfide group. A sliding surface of the sliding member contains a heat resistant thermoplastic resin other than a fluorocarbon resin and a resin having a siloxane group that is other than the heat resistant thermoplastic resin. The lubricant contains an oil having a siloxane group in a main chain.

公开(公告)号：US12105455B2

公开(公告)日：2024-10-01

申请号：US18190102

申请日：2023-03-26

Applicant: FUJIFILM Business Innovation Corp.

Inventor： Ryohei Yoshikawa ,  Kenji Omori ,  Hideaki Ohara

IPC: G03G15/20

CPC classification number: G03G15/206 ,  G03G15/2064

Abstract: A sliding member for a fixing device includes a resin layer that includes plural recessed portions on a surface of the resin layer, in which, in a top view, the recessed portion has a shape having a tip angle less than 90° in a sliding direction and an area ratio of an area of the recessed portions to a surface area of the resin layer is 30% or more and 70% or less.

公开(公告)号：US11892789B2

公开(公告)日：2024-02-06

申请号：US18152768

申请日：2023-01-11

Applicant: FUJIFILM Business Innovation Corp.

Inventor： Junko Yamasaki ,  Kenta Shingu ,  Hideaki Ohara

IPC: G03G15/20

CPC classification number: G03G15/2057 ,  G03G2215/2035

Abstract: A fixing belt, in which, in a measurement of a Fourier transform power spectrum of a surface profile of an inner peripheral surface of the fixing belt, a ratio of an average of a power spectral density at a wavelength of 2 μm or more and 6 μm or less to an average of a power spectral density at a wavelength of 10 μm or more and 50 μm or less is 0.82 or more and 0.92 or less.

公开(公告)号：US11543758B2

公开(公告)日：2023-01-03

申请号：US17409345

申请日：2021-08-23

Applicant: FUJIFILM Business Innovation Corp.

Inventor： Yukiko Kamijo ,  Hideaki Ohara ,  Kenji Omori ,  Junko Yamasaki ,  Daisuke Nakashima ,  Yuka Ishihara ,  Hitoshi Komuro

IPC: G03G15/20 ,  G03G9/087 ,  G03G9/08 ,  G03G9/09

Abstract: A unit includes: a developing device configured to develop an electrostatic charge image that is formed on a surface of an image carrier, as a toner image with a developer including a brilliant toner containing a flat brilliant pigment, the developer being accommodated in the developing device; and a fixing device configured to fix the toner image onto a surface of a recording medium at a fixing temperature of 130° C. or higher and 230° C. or lower that includes a fixing belt, a first roller and a second roller that are disposed inside the fixing belt and support the fixing belt while applying tension to the fixing belt, and a pressure roller, the first roller and the pressure roller sandwiching the fixing belt to form a nip portion.

公开(公告)号：US11774885B2

公开(公告)日：2023-10-03

申请号：US17722394

申请日：2022-04-18

Applicant: FUJIFILM Business Innovation Corp.

Inventor： Kenji Kajiwara ,  Tomotake Inagaki ,  Ryohei Yoshikawa ,  Kenji Omori ,  Ryosuke Kubota ,  Jun Kimura ,  Hideaki Ohara

IPC: G03G15/20 ,  C08L83/06 ,  C01B32/182 ,  C01B32/158 ,  B82Y30/00

CPC classification number: G03G15/20 ,  C01B32/158 ,  C01B32/182 ,  C08L83/06 ,  B82Y30/00 ,  C01B2202/24 ,  C01B2204/24 ,  C01B2204/32 ,  G03G2215/2048

Abstract: A polymer material molded product includes a polymer material and a porous carbon material having an X-ray diffraction spectral characteristic shown in the following (1) or (2),



(1): a peak derived from a (002) plane of carbon is observed, a half width of the peak derived from the (002) plane of carbon is 5° or more, and a half width of a peak derived from a (10) plane of carbon is 3.2° or less, and
(2): the peak derived from the (002) plane of carbon is not observed, and the half width of the peak derived from the (10) plane of carbon is 3.2° or less.

公开(公告)号：US20230251596A1

公开(公告)日：2023-08-10

申请号：US18152768

申请日：2023-01-11

Applicant: FUJIFILM Business Innovation Corp.

Inventor： Junko YAMASAKI ,  Kenta Shingu ,  Hideaki Ohara

IPC: G03G15/20

CPC classification number: G03G15/2057

Abstract: A fixing belt, in which, in a measurement of a Fourier transform power spectrum of a surface profile of an inner peripheral surface of the fixing belt, a ratio of an average of a power spectral density at a wavelength of 2 μm or more and 6 μm or less to an average of a power spectral density at a wavelength of 10 μm or more and 50 μm or less is 0.82 or more and 0.92 or less.

公开(公告)号：US11359041B2

公开(公告)日：2022-06-14

申请号：US16918290

申请日：2020-07-01

Applicant: FUJIFILM Business Innovation Corp.

Inventor： Hideaki Ohara ,  Kenji Omori ,  Junko Yamasaki ,  Kenta Yamakoshi

IPC: C08F214/26 ,  B65G15/32 ,  G03G15/20 ,  C08G65/00 ,  B65G15/00

Abstract: An endless belt includes a substrate layer, and a first surface layer that is disposed on an outer circumferential surface of the substrate layer and that includes a cross-linked fluororesin layer. A layer containing a cross-linked fluororesin forms the inner circumferential surface of the belt. Martens hardness of the inner circumferential surface of the belt at 130° C. is higher than Martens hardness of the outer circumferential surface of the belt at 130° C.

公开(公告)号：US11067928B2

公开(公告)日：2021-07-20

申请号：US16750199

申请日：2020-01-23

Applicant: FUJIFILM Business Innovation Corp.

Inventor： Tomotake Inagaki ,  Yusuke Watanabe ,  Tomoko Suzuki ,  Hideaki Ohara ,  Ryohei Yoshikawa

IPC: G03G15/20

Abstract: A fixing member includes a substrate layer including a resin; a first metal layer that is provided on an outer peripheral surface of the substrate layer and including Cu; a second metal layer that is provided on the outer peripheral surface of the first metal layer so as to be in contact with the first metal layer, includes Ni, and has crystal orientation indexes of 0.80 to 1.30 for a (111) plane, 0.80 to 1.50 for a (200) plane, and 0.70 to 1.30 for a (311) plane; and an elastic layer that is provided on an outer peripheral surface of the second metal layer.

公开(公告)号：US11487232B1

公开(公告)日：2022-11-01

申请号：US17465268

申请日：2021-09-02

Applicant: FUJIFILM Business Innovation Corp.

Inventor： Kenji Omori ,  Hideaki Ohara ,  Tomotake Inagaki ,  Hitoshi Komuro ,  Jun Kimura

IPC: G03G15/20

Abstract: An endless belt includes a metal substrate, and a heat-resistant resin layer that is disposed as an innermost layer on an inner peripheral surface of the metal substrate and that contains a resin and a thermally conductive filler having an aspect ratio of 20 or more. In the heat-resistant resin layer, an orientation ratio of the thermally conductive filler with respect to a circumferential direction of the endless belt is 20% or more.

公开(公告)号：US11644776B1

公开(公告)日：2023-05-09

申请号：US17709432

申请日：2022-03-31

Applicant: FUJIFILM Business Innovation Corp.

Inventor： Hideaki Ohara ,  Tomotake Inagaki ,  Ryohei Yoshikawa ,  Kenji Omori ,  Kenji Kajiwara ,  Junko Yamasaki

IPC: G03G15/20

CPC classification number: G03G15/2057 ,  G03G15/2053 ,  G03G2215/2016

Abstract: An endless belt includes a resin and an acicular filler of which a thermal conductivity is 220 W/mK or more and 320 W/mK or less, a volume resistivity is 1011 Ωcm or more and 1016 Ωcm or less, and a content with respect to the endless belt is 1% by mass or more and 30% by mass or less.