公开(公告)号：US20230185222A1

公开(公告)日：2023-06-15

申请号：US18060566

申请日：2022-11-30

Applicant: Yuusuke FURUICHI ,  Hiroyuki SHIMADA ,  Yukimichi SOMEYA

Inventor： Yuusuke FURUICHI ,  Hiroyuki SHIMADA ,  Yukimichi SOMEYA

IPC: G03G15/20

CPC classification number: G03G15/2053 ,  G03G15/2064 ,  G03G2215/2038

Abstract: A nip forming device includes an endless belt that is flexible and rotates and a nip former that is disposed opposite an inner circumferential face of the endless belt. A pressure rotator presses against the nip former via the endless belt to form a nip between the endless belt and the pressure rotator, through which a conveyed object is conveyed. A separator is disposed downstream from the nip in a conveyance direction of the conveyed object. The separator separates the conveyed object from the endless belt. The separator includes a non-contact portion separated from the endless belt and a contact portion that contacts the endless belt. The contact portion retains a gap having a predetermined size between the non-contact portion and the endless belt.

公开(公告)号：US20220299920A1

公开(公告)日：2022-09-22

申请号：US17692177

申请日：2022-03-11

Applicant: Hiroyuki SHIMADA ,  Yukimichi SOMEYA ,  Yuusuke FURUICHI ,  Daisuke INOUE ,  Satoshi TOHKAI ,  Yumiko HAYASHI

Inventor： Hiroyuki SHIMADA ,  Yukimichi SOMEYA ,  Yuusuke FURUICHI ,  Daisuke INOUE ,  Satoshi TOHKAI ,  Yumiko HAYASHI

IPC: G03G15/20

Abstract: A fixing device includes a rotator, a secured member, a pressure rotator, and lubricant. The rotator has flexibility and a sleeve form. The rotator includes an inner portion having a sliding surface. The inner portion has an elastic power of 55% or more. The secured member is disposed inside a loop of the rotator and has a slide surface on which the sliding surface of the rotator slides. The slide surface has a larger hardness than a hardness of the sliding surface of the rotator. The pressure rotator presses the rotator against the secured member and forms a nip between the rotator and the pressure rotator. The lubricant is provided between the rotator and the secured member.

公开(公告)号：US20220299919A1

公开(公告)日：2022-09-22

申请号：US17686622

申请日：2022-03-04

Applicant: Daisuke INOUE ,  Yuusuke FURUICHI ,  Hiroyuki SHIMADA ,  Yukimichi SOMEYA ,  Satoshi TOHKAI ,  Yumiko HAYASHI

Inventor： Daisuke INOUE ,  Yuusuke FURUICHI ,  Hiroyuki SHIMADA ,  Yukimichi SOMEYA ,  Satoshi TOHKAI ,  Yumiko HAYASHI

IPC: G03G15/20

Abstract: A fixing device includes a rotator, a secured member, a pressure rotator, and lubricant. The rotator has flexibility and a sleeve form. The rotator includes an inner portion having a sliding surface. The inner portion has an elastic power of 55% or more. The secured member is disposed inside a loop of the rotator and has a slide surface on which the sliding surface of the rotator is to slide. The slide surface has a smaller surface roughness in a sliding direction of the rotator than a surface roughness of the sliding surface in the sliding direction of the rotator. The pressure rotator presses the rotator against the secured member and forms a nip between the rotator and the pressure rotator. The lubricant is provided between the rotator and the secured member.

公开(公告)号：US20230297016A1

公开(公告)日：2023-09-21

申请号：US18184190

申请日：2023-03-15

Applicant: Yukimichi SOMEYA ,  Yuusuke FURUICHI ,  Tomoya ADACHI ,  Hiroyuki SHIMADA

Inventor： Yukimichi SOMEYA ,  Yuusuke FURUICHI ,  Tomoya ADACHI ,  Hiroyuki SHIMADA

IPC: G03G15/20

CPC classification number: G03G15/2057 ,  G03G15/2064 ,  G03G2215/2038

Abstract: A nip forming device includes an endless belt that is flexible and rotates. A nip formation pad is disposed opposite an inner circumferential face of the endless belt. A pressure rotator rotates and presses against the nip formation pad via the endless belt to form a nip between the endless belt and the pressure rotator, through which a conveyed object is conveyed. A housing supports the pressure rotator. A separator is disposed downstream from the nip in a conveyance direction in which the conveyed object is conveyed. The separator separates the conveyed object from the endless belt. The separator moves toward and away from the endless belt. A restrictor restricts motion of the separator that moves toward the endless belt. The restrictor is mounted on the housing.

公开(公告)号：US20220382192A1

公开(公告)日：2022-12-01

申请号：US17742912

申请日：2022-05-12

Applicant: Daisuke INOUE ,  Yuusuke FURUICHI ,  Hiroyuki SHIMADA ,  Yukimichi SOMEYA ,  Satoshi TOHKAI ,  Yumiko HAYASHI

Inventor： Daisuke INOUE ,  Yuusuke FURUICHI ,  Hiroyuki SHIMADA ,  Yukimichi SOMEYA ,  Satoshi TOHKAI ,  Yumiko HAYASHI

IPC: G03G15/20

Abstract: A belt device includes a secured member, a belt, a pressure rotator, and lubricant. The belt has an endless shape and slides on a slide surface of the secured member. The belt has an inner portion having an elastic power of 55% or more and a sliding surface sliding on the slide surface of the secured member. The sliding surface has a surface roughness smaller than a surface roughness of the slide surface of the secured member. The pressure rotator presses the secured member via the belt to form a nip between the belt and the pressure rotator. The lubricant is interposed between the sliding surface of the belt and the slide surface of the secured member.

公开(公告)号：US20220308511A1

公开(公告)日：2022-09-29

申请号：US17694719

申请日：2022-03-15

Applicant: Yukimichi SOMEYA ,  Hiroyuki SHIMADA ,  Daisuke INOUE ,  Yuusuke FURUICHI ,  Satoshi TOHKAI ,  Yumiko HAYASHI

Inventor： Yukimichi SOMEYA ,  Hiroyuki SHIMADA ,  Daisuke INOUE ,  Yuusuke FURUICHI ,  Satoshi TOHKAI ,  Yumiko HAYASHI

IPC: G03G15/20

Abstract: A pressing device includes a rotator, a secured member, a pressure rotator, and lubricant. The rotator has flexibility and a sleeve form and includes an inner portion having a sliding surface. The inner portion has an elastic power of 55% or more. The secured member is inside a loop of the rotator and has a slide surface on which the sliding surface of the rotator is to slide. The slide surface has a smaller surface roughness than a surface roughness of the sliding surface. The pressure rotator presses the rotator against the secured member and forms a nip between the rotator and the pressure rotator. The lubricant between the rotator and the secured member has a consistency of 275 or less.

公开(公告)号：US20250028267A1

公开(公告)日：2025-01-23

申请号：US18773593

申请日：2024-07-16

Applicant: Yukimichi SOMEYA ,  Hiroyuki SHIMADA ,  Yuusuke FURUICHI

Inventor： Yukimichi SOMEYA ,  Hiroyuki SHIMADA ,  Yuusuke FURUICHI

IPC: G03G15/20 ,  B32B37/00 ,  B41J11/00 ,  B65B51/10 ,  B65B51/16

Abstract: A heating device including, an endless belt, a heater, a temperature detector, a high thermal conductor including a hole or a notch, a holder restricts a movement of the high thermal conductor in at least at a downstream of the first direction, a first gap along the first direction formed between an upstream surface in the first direction of the temperature detector and an upstream surface in the first direction of the hole or the notch of the high thermal conductor, a second gap along the first direction formed between a downstream surface in the first direction of the high thermal conductor and a downstream surface in the first direction of the housing portion, wherein a size A of the first gap and a size B of the second gap satisfy a relationship of A>B.

公开(公告)号：US20240302773A1

公开(公告)日：2024-09-12

申请号：US18439784

申请日：2024-02-13

Applicant: Hiroyuki SHIMADA ,  Yukimichi SOMEYA ,  Yuusuke FURUICHI

Inventor： Hiroyuki SHIMADA ,  Yukimichi SOMEYA ,  Yuusuke FURUICHI

IPC: G03G15/20 ,  G03G15/00

CPC classification number: G03G15/2053 ,  G03G15/2064 ,  G03G15/5045

Abstract: A fixing device includes a fixing belt, a planar heater, a pressure rotator, a temperature sensor, and a plate. The pressure rotator presses the planar heater to form a nip through which a sheet is conveyed in a conveyance direction. The plate contacts the planar heater and includes a first portion and a second portion. The first portion has an opening and a projection. The temperature sensor contacts the planar heater through the opening to detect a temperature of the planar heater. The projection projects from the opening in the conveyance direction. The first portion has a first width in the conveyance direction. The second portion is inside a minimum sheet-passing region in an axial direction of the pressure rotator orthogonal to the conveyance direction and outside the first portion in the axial direction and has a second width smaller than the first width in the conveyance direction.

公开(公告)号：US20230305457A1

公开(公告)日：2023-09-28

申请号：US18171558

申请日：2023-02-20

Applicant: Yukimichi SOMEYA ,  Yuusuke FURUICHI ,  Tomoya ADACHI ,  Hiroyuki SHIMADA

Inventor： Yukimichi SOMEYA ,  Yuusuke FURUICHI ,  Tomoya ADACHI ,  Hiroyuki SHIMADA

IPC: G03G15/20

CPC classification number: G03G15/2028

Abstract: A fixing device includes a fixing belt heated by a heater. A pressure roller presses against the fixing belt to form a nip therebetween, through which a recording medium is conveyed. A holding portion is disposed opposite an inner circumferential face of the fixing belt at each lateral end of the fixing belt in a longitudinal direction thereof. The holding portion rotatably holds the fixing belt. A separator separates the recording medium from the fixing belt. The separator includes a contact portion that contacts the fixing belt and is disposed outboard from a recording medium conveyance region in the longitudinal direction of the fixing belt. The recording medium is conveyed over the fixing belt in the recording medium conveyance region. The contact portion is disposed opposite the holding portion via the fixing belt. The separator further includes a biasing member that presses the contact portion toward the fixing belt.

公开(公告)号：US20230081075A1

公开(公告)日：2023-03-16

申请号：US17864434

申请日：2022-07-14

Applicant: Yukimichi SOMEYA ,  Hiroyuki SHIMADA ,  Yuusuke FURUICHI ,  Daisuke INOUE ,  Satoshi TOHKAI ,  Yumiko HAYASHI

Inventor： Yukimichi SOMEYA ,  Hiroyuki SHIMADA ,  Yuusuke FURUICHI ,  Daisuke INOUE ,  Satoshi TOHKAI ,  Yumiko HAYASHI

IPC: G03G15/20

Abstract: A belt device includes a heater and a belt. The heater includes a substrate and a heat generator on the substrate. The heater has a first heater surface and a second heater surface opposite the first heater surface. The first heater surface is adjacent to the heat generator. The belt is rotatable, has an endless shape, and slides on the second heater surface. The belt includes an inner portion having an inner circumferential surface to slide on the second heater surface. The inner portion has an elastic power of 52% or more.