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1. 发明申请

US20170003634A1 FIXING DEVICE AND IMAGE FORMING APPARATUS INCORPORATING SAME 有权
标题翻译：固定装置和成像装置的图像形成装置
公开(公告)号：US20170003634A1
公开(公告)日：2017-01-05
申请号：US15192521
申请日：2016-06-24
申请人： Masahiro SAMEI , Tomohiko FUJII , Yoshihiro FUKUHATA , Tamotsu IKEDA , Minoru TOYODA , Yoshiharu TAKAHASHI , Daisuke INOUE
发明人： Masahiro SAMEI , Tomohiko FUJII , Yoshihiro FUKUHATA , Tamotsu IKEDA , Minoru TOYODA , Yoshiharu TAKAHASHI , Daisuke INOUE
IPC分类号： G03G15/20
CPC分类号： G03G15/2064 , G03G15/2053 , G03G15/206 , G03G2215/2061 , G03G2215/2064
摘要： A fixing device includes a first rotary body, a second rotary body to contact the first rotary body, and a plain bearing that supports the first rotary body or the second rotary body. One rotary body of the first rotary body and the second rotary body has an outer diameter increasing, while the other rotary body has an outer diameter decreasing, in a curved line from an axial center portion to axial end portions of the first rotary body and the second rotary body at least between the first rotary body and the second rotary body. A recording medium passes between the first rotary body and the second rotary body with a circumferential component of a shear force generated between the first rotary body and the second rotary body by use of the plain bearing being in a range of from 15N to 25N.
摘要翻译：定影装置包括第一旋转体，与第一旋转体接触的第二旋转体和支撑第一旋转体或第二旋转体的滑动轴承。第一旋转体和第二旋转体的一个旋转体具有从第一旋转体的轴心部分向轴向端部的曲线的外径增大，而另一旋转体的外径减小，至少在第一旋转体和第二旋转体之间的第二旋转体。记录介质通过使用15N至25N范围内的滑动轴承，在第一旋转体和第二旋转体之间产生的剪切力的圆周分量在第一旋转体和第二旋转体之间通过。

2. 发明申请

US20150220029A1 IMAGE FORMING APPARATUS AND IMAGE FORMING METHOD 有权
标题翻译：图像形成装置和图像形成方法
公开(公告)号：US20150220029A1
公开(公告)日：2015-08-06
申请号：US14609028
申请日：2015-01-29
申请人： Masahiro SAMEI , Tomoya ADACHI , Daisuke INOUE , Yasuharu KAWARASAKI , Yoshiharu TAKAHASHI
发明人： Masahiro SAMEI , Tomoya ADACHI , Daisuke INOUE , Yasuharu KAWARASAKI , Yoshiharu TAKAHASHI
IPC分类号： G03G15/20
CPC分类号： G03G15/2039
摘要： An image forming apparatus includes a controller including a primary heating control portion that determines a first amount of power supplied to a heater based on a temperature of a fixing rotator detected by a temperature detector and controls the heater to perform a primary heating to heat the fixing rotator with the first amount of power, a secondary heating control portion that controls the heater to perform a secondary heating to heat the fixing rotator with a preset second amount of power, and a switch portion that controls the heater to switch between the primary heating and the secondary heating during an identical print job without changing a target temperature of the fixing rotator.
摘要翻译：图像形成装置包括：控制器，其包括：主加热控制部分，其基于由温度检测器检测到的定影旋转器的温度确定供应给加热器的第一功率量，并且控制加热器执行一次加热以加热定影第一加热控制部分，其控制加热器以预设的第二量的功率进行二次加热以加热定影转子;以及开关部分，其控制加热器在初级加热和在相同的打印作业期间的二次加热而不改变定影旋转器的目标温度。

3. 发明申请

US20180107142A1 FIXING DEVICE AND IMAGE FORMING APPARATUS 审中-公开
公开(公告)号：US20180107142A1
公开(公告)日：2018-04-19
申请号：US15727792
申请日：2017-10-09
申请人： Masahiro SAMEI , Toshio Ogiso , Tamotsu Ikeda , Shigeo Nanno
发明人： Masahiro SAMEI , Toshio Ogiso , Tamotsu Ikeda , Shigeo Nanno
IPC分类号： G03G15/20
CPC分类号： G03G15/2078 , G03G15/2039 , G03G15/2053 , G03G15/206
摘要： A fixing device includes a fixing rotator including a primary portion and a secondary portion disposed outboard from the primary portion in an axial direction of the fixing rotator. A pressure rotator contacts the fixing rotator to form a fixing nip between the fixing rotator and the pressure rotator, through which a recording medium is conveyed. A primary heater heats the primary portion of the fixing rotator. A secondary heater heats the secondary portion of the fixing rotator. A primary temperature detector is isolated from the fixing rotator and detects a temperature of the primary portion of the fixing rotator. A secondary temperature detector contacts the fixing rotator and detects a temperature of the secondary portion of the fixing rotator. The primary temperature detector has a thermal time constant that is smaller than a thermal time constant of the secondary temperature detector.

4. 发明公开

US20230297010A1 HEATING DEVICE, FIXING DEVICE, AND IMAGE FORMING APPARATUS 审中-公开
公开(公告)号：US20230297010A1
公开(公告)日：2023-09-21
申请号：US18160080
申请日：2023-01-26
申请人： Daisuke INOUE , Takayuki ANDOH , Masahiro SAMEI , Kota SHIODERA , Hiroshi YOSHINAGA
发明人： Daisuke INOUE , Takayuki ANDOH , Masahiro SAMEI , Kota SHIODERA , Hiroshi YOSHINAGA
IPC分类号： G03G15/20
CPC分类号： G03G15/2025
摘要： A heating device includes a rotator, a heating source, a reflector, a shield, a rotator holder, and a liquid or semi-solid substance. The rotator is rotatably held. The heating source heats the rotator. The reflector reflects radiant heat emitted from the heating source. The shield is disposed closer to a longitudinal end portion of the rotator than to a longitudinal center portion of the rotator to shield, between the heating source and the rotator, the radiant heat emitted from the heating source. The shield has a reflectance lower than a reflectance of the reflector. The rotator holder holds the longitudinal end portion of the rotator. The liquid or semi-solid substance has lubricity and adheres to the rotator holder.

5. 发明公开

US20240319640A1 HEATING DEVICE, FIXING DEVICE, AND IMAGE FORMING APPARATUS 审中-公开
公开(公告)号：US20240319640A1
公开(公告)日：2024-09-26
申请号：US18603301
申请日：2024-03-13
申请人： Toshiyuki KABATA , Takayuki ANDOH , Masahiro SAMEI , Kota SHIODERA , Hiroshi YOSHINAGA , Tomoyuki NISHIKAWA , Yuusuke FURUICHI , Hiroyuki SHIMADA , Arinobu YOSHIURA
发明人： Toshiyuki KABATA , Takayuki ANDOH , Masahiro SAMEI , Kota SHIODERA , Hiroshi YOSHINAGA , Tomoyuki NISHIKAWA , Yuusuke FURUICHI , Hiroyuki SHIMADA , Arinobu YOSHIURA
IPC分类号： G03G15/20
CPC分类号： G03G15/2053 , G03G15/2039 , G03G15/2064 , G03G2215/2025
摘要： A heating device includes a rotator having an internal space, a heater heating the rotator, lubricant applied to the rotator, a rotator support supporting the rotator, and a cover. The rotator support has a first opening communicating with the internal space of the rotator, penetrating through the rotator support, and extending in the longitudinal direction. The cover covers the first opening and has a face facing the first opening and a second opening communicating with the internal space of the rotator and an exterior of the cover. The cover maintains a temperature of the face of the cover at 40° C. or higher.

6. 发明公开

US20240036500A1 HEATING DEVICE, FIXING DEVICE, AND IMAGE FORMING APPARATUS 审中-公开
公开(公告)号：US20240036500A1
公开(公告)日：2024-02-01
申请号：US18225158
申请日：2023-07-24
申请人： Masahiro SAMEI , Takayuki ANDOH , Kota SHIODERA , Hiroshi YOSHINAGA , Toshiyuki KABATA
发明人： Masahiro SAMEI , Takayuki ANDOH , Kota SHIODERA , Hiroshi YOSHINAGA , Toshiyuki KABATA
IPC分类号： G03G15/20
CPC分类号： G03G15/2017 , G03G2215/2035 , G03G15/2064
摘要： A heating device includes a rotator, a heater, a rotator holder, lubricant, and a shield. The heater heats the rotator in a heat generation range. The rotator holder holds an end of the rotator in a longitudinal direction of the rotator. The lubricant adheres to the rotator holder. The shield shields heat transferred from the heater. The shield includes a first shield, a second shield, and a heat transfer reducer. The first shield faces the heater and the rotator. The second shield faces the rotator holder. The second shield is outside the heat generation range in the longitudinal direction. The heat transfer reducer is disposed between the first shield and the second shield. The heat transfer reducer reduces the heat transferred from the first shield to the second shield.

7. 发明公开

US20230324838A1 HEATING DEVICE, NIP FORMING DEVICE, AND IMAGE FORMING APPARATUS 审中-公开
公开(公告)号：US20230324838A1
公开(公告)日：2023-10-12
申请号：US18185778
申请日：2023-03-17
申请人： Masahiro SAMEI , Takyuki Andoh , Kota Shiodera , Toshiyuki Kabata , Hiroshi Yoshinaga
发明人： Masahiro SAMEI , Takyuki Andoh , Kota Shiodera , Toshiyuki Kabata , Hiroshi Yoshinaga
IPC分类号： G03G15/20
CPC分类号： G03G15/2053
摘要： A heating device includes a rotator, a heater heating the rotator, a rotator holder holding a longitudinal end of the inner peripheral surface of the rotator, and lubricant applied to the rotator holder. The rotator holder includes a holding portion contacting the end of the inner peripheral surface, a flange portion contacting a longitudinal end of the rotator and extending outward in a radial direction of a loop of the rotator, and an inclined surface. The inclined surface is inclined in a direction away from an inner peripheral surface of the rotator from the holding portion toward the flange portion.

8. 发明公开

US20230297011A1 FIXING DEVICE AND IMAGE FORMING APPARATUS 审中-公开
公开(公告)号：US20230297011A1
公开(公告)日：2023-09-21
申请号：US18180509
申请日：2023-03-08
申请人： Kota SHIODERA , Takayuki ANDOH , Masahiro SAMEI , Toshiyuki KABATA , Hiroshi YOSHINAGA
发明人： Kota SHIODERA , Takayuki ANDOH , Masahiro SAMEI , Toshiyuki KABATA , Hiroshi YOSHINAGA
IPC分类号： G03G15/20
CPC分类号： G03G15/2025
摘要： A fixing device includes a rotator, a heater, a rotator support, a nip formation pad, lubricant, and a pressure rotator. The heater heats an inner circumferential surface of the rotator. The rotator support supports an end of the inner circumferential surface of the rotator in an axial direction of the rotator. The rotator slides on the rotator support. The nip formation pad is in contact with the inner circumferential surface of the rotator. One end of the nip formation pad in a longitudinal direction of the nip formation pad is separated from the rotator support with a clearance of 2 mm or more. The lubricant is between the rotator and the nip formation pad. The pressure rotator presses the nip formation pad via the rotator to form a nip between the rotator and the pressure rotator.

9. 发明申请

US20140314459A1 FIXING DEVICE AND IMAGE FORMING APPARATUS INCORPORATING SAME 有权
标题翻译：固定装置和成像装置的图像形成装置
公开(公告)号：US20140314459A1
公开(公告)日：2014-10-23
申请号：US14254022
申请日：2014-04-16
申请人： Masahiro SAMEI
发明人： Masahiro SAMEI
IPC分类号： G03G15/20
CPC分类号： G03G15/2053 , G03G2215/2035
摘要： A fixing device includes a first rotator, a second rotator pressed against the first rotator, and a heater to heat the first rotator. The heater includes an elongated substrate extending in an axial direction of the first rotator, a heat generator disposed on a surface of the substrate facing the first rotator, at a position downstream in a rotational direction of the first rotator, a plurality of first conduction paths connected to the heat generator and grounded downstream of the heat generator in the rotational direction of the first rotator, and a second conduction path on which the plurality of first conduction paths are grounded. The heat generator has a heat-generating area divided into a plurality of sub-heat-generating areas in the axial direction of the first rotator. The plurality of sub-heat-generating areas are grounded on the second conduction path via the plurality of first conduction paths.
摘要翻译：固定装置包括第一旋转体，压靠第一旋转体的第二旋转体和加热第一旋转体的加热器。所述加热器包括在所述第一旋转体的轴向方向上延伸的细长基板，在所述第一旋转体的旋转方向的下游位置处布置在所述基板的面向所述第一旋转体的表面上的发热体，多个第一导电路径连接到热发生器并且沿着第一旋转体的旋转方向在发热体的下游接地，以及第二导电路径，多个第一导电路径接地。发热体具有在第一旋转体的轴向上分成多个副发热区域的发热区域。多个副发热区域经由多个第一导电路径在第二导电路径上接地。

10. 发明申请

US20140219673A1 FIXING DEVICE AND IMAGE FORMING APPARATUS INCLUDING SAME 有权
标题翻译：固定装置和图像形成装置，包括它们
公开(公告)号：US20140219673A1
公开(公告)日：2014-08-07
申请号：US14173171
申请日：2014-02-05
申请人： Takeshi YAMAMOTO , Kazuhito KISHI , Takumi WAlDA , Masahiro SAMEI , Hiroshi ONO , Ippei FUJIMOTO , Hiroshi SEO , Ryota YAMASHINA , Yasunori ISHIGAYA
发明人： Takeshi YAMAMOTO , Kazuhito KISHI , Takumi WAlDA , Masahiro SAMEI , Hiroshi ONO , Ippei FUJIMOTO , Hiroshi SEO , Ryota YAMASHINA , Yasunori ISHIGAYA
IPC分类号： G03G15/20
CPC分类号： G03G15/2042 , G03G2215/2035
摘要： A fixing device includes a rotatable, endless fixing belt; a rotatable contact member configured to contact a circumferential surface of the fixing belt to form a nip in association with the fixing belt; and a heating member disposed at an interior surface of the fixing belt, configured to heat the fixing belt. The heating member includes a multiple heat sources arranged along the width of a sheet of recording media in a direction perpendicular to a sheet conveyance direction. A controller changes an area to be heated by each heat source based on image data and corresponding to an unfixed image on the sheet. The fixing belt is heated by the heating member so that the unfixed image on the sheet that has been conveyed to the nip is fixed onto the sheet at least with heat. The heating member is disposed at a portion other than the fixing nip.
摘要翻译：定影装置包括可旋转的环形定影带; 可旋转接触构件，其构造成接触所述定影带的周向表面以与所述定影带相关联地形成辊隙; 以及设置在所述定影带的内表面处的加热构件，其构造成加热所述定影带。加热构件包括沿垂直于片材输送方向的方向沿着记录介质片的宽度布置的多个热源。控制器基于图像数据改变每个热源要加热的区域，并对应于片材上的未定影图像。定影带被加热部件加热，使得已经输送到辊隙的片材上的未定影图像至少热固定在片材上。加热构件设置在定影夹持部以外的部分。

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