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31. 发明授权

US5466555A Releasing composition and binder resin composition for electrophotographic toner, and toner containing the same 失效
标题翻译：用于电子照相调色剂的组合物和粘合剂树脂组合物的脱模，以及含有它们的调色剂
公开(公告)号：US5466555A
公开(公告)日：1995-11-14
申请号：US272822
申请日：1994-07-11
申请人： Takayuki Taguchi , Kenichi Hasegawa , Sohkichi Baba , Yoshitsugu Takai
发明人： Takayuki Taguchi , Kenichi Hasegawa , Sohkichi Baba , Yoshitsugu Takai
IPC分类号： G03G9/08 , G03G9/087
CPC分类号： G03G9/08782 , G03G9/08795 , G03G9/08797
摘要： A releasing composition for an electrophotographic toner, which comprises 60.about.99.5% by weight of a low molecular weight polypropylene (A), and 0.5.about.40% by weight of at least one modified polyolefin (B) selected from the group consisting of (B1) a modified polypropylene comprising a low molecular weight polypropylene (a1) having a melt viscosity at 160.degree. C. higher than that of said polypropylene (A), modified with an ethylenically unsaturated carboxylic acid or an anhydride thereof (b1), and (B2) a modified polyethylene comprising a low molecular weight polyethylene (a2) having a melt viscosity of 10.about.8,000 cps at 140.degree. C., modified with an ethylenically unsaturated carboxylic acid or an anhydride thereof (b2). A toner prepared from a combination of the releasing composition and a thermoplastic binder resin exhibits improved flowability without reducing the offset temperature of the toner.
摘要翻译：一种电子照相调色剂用的释放组合物，其包含60重量％的低分子量聚丙烯（A）99.5重量％，和40重量％的至少一种选自（B1）的改性聚烯烃（B））改性聚丙烯，其包含比用所述聚烯丙烯（A）高的烯烃不饱和羧酸或其酸酐（b1）和（B2）改性的160℃的熔体粘度的低分子量聚丙烯（a1））改性聚乙烯，其包含在140℃下熔融粘度为10-6000cps的低分子量聚乙烯（a2），用烯属不饱和羧酸或其酸酐（b2）改性。由脱模组合物和热塑性粘合剂树脂的组合制备的调色剂表现出改进的流动性，而不降低调色剂的胶印温度。

32. 发明申请

US20200089147A1 FIXING DEVICE AND IMAGE FORMING APPARATUS INCORPORATING THE SAME 审中-公开
公开(公告)号：US20200089147A1
公开(公告)日：2020-03-19
申请号：US16550028
申请日：2019-08-23
申请人： Kenichi Hasegawa , Kenji Ishii
发明人： Kenichi Hasegawa , Kenji Ishii
IPC分类号： G03G15/20
摘要： A fixing device includes a stationary member, a roller, an endless belt, a pressure rotator, and a lubricant applicator. The endless belt is stretched over the stationary member and the roller. The pressure rotator is disposed opposite the stationary member via the endless belt to form a fixing nip between the pressure rotator and the endless belt on the stationary member. The lubricant applicator contacts the roller over an entire length of the roller in an axial direction of the roller. The lubricant applicator contacts an inner surface of the endless belt and has an axial length equal to or greater than an axial length of the stationary member.

33. 发明授权

US10114322B2 Fixing device and image forming apparatus 有权
公开(公告)号：US10114322B2
公开(公告)日：2018-10-30
申请号：US15657417
申请日：2017-07-24
申请人： Kenichi Hasegawa , Takashi Fujita , Hiroyuki Shimada , Kaori Hemmi
发明人： Kenichi Hasegawa , Takashi Fujita , Hiroyuki Shimada , Kaori Hemmi
IPC分类号： G03G15/20
摘要： A fixing device includes a fixing belt that is rotatable and a pressure rotator that is pressed against the fixing belt to form a fixing nip therebetween. A polishing roller separably contacts the fixing belt and slides over an outer circumferential surface of the fixing belt while the polishing roller is pressed against the fixing belt. At least one support supports and stretches the fixing belt. A polishing aid, which is disposed opposite the polishing roller via the fixing belt, supports and stretches the fixing belt. The polishing roller is disposed opposite the polishing aid via the fixing belt to form a polishing nip between the polishing roller and the fixing belt while the polishing roller is pressed against the fixing belt. The polishing roller changes a rotation locus of the fixing belt along at least a part of a circumferential face of the polishing roller.

34. 发明授权

US10054885B2 Pressure and pressure relief device, fixing device, and image forming apparatus 有权
公开(公告)号：US10054885B2
公开(公告)日：2018-08-21
申请号：US15604212
申请日：2017-05-24
申请人： Jun Okamoto , Yoshio Hattori , Yuusuke Furuichi , Haruyuki Honda , Kiwako Hiroi , Kenichi Hasegawa
发明人： Jun Okamoto , Yoshio Hattori , Yuusuke Furuichi , Haruyuki Honda , Kiwako Hiroi , Kenichi Hasegawa
IPC分类号： G03G15/20
CPC分类号： G03G15/206 , G03G15/2032
摘要： A pressure and pressure relief device includes a rotator, a pressure body, a first pressure lever, and a biasing mechanism. The biasing mechanism includes a first elastic body, a second pressure lever, a cam, and a cam follower. A relations of L1>L3, L2>L4, and L3

35. 发明申请

US20170343942A1 PRESSURE AND PRESSURE RELIEF DEVICE, FIXING DEVICE, AND IMAGE FORMING APPARATUS 审中-公开
公开(公告)号：US20170343942A1
公开(公告)日：2017-11-30
申请号：US15604212
申请日：2017-05-24
申请人： Jun Okamoto , Yoshio Hattori , Yuusuke Furuichi , Haruyuki Honda , Kiwako Hiroi , Kenichi Hasegawa
发明人： Jun Okamoto , Yoshio Hattori , Yuusuke Furuichi , Haruyuki Honda , Kiwako Hiroi , Kenichi Hasegawa
IPC分类号： G03G15/20
CPC分类号： G03G15/206 , G03G15/2032
摘要： A pressure and pressure relief device includes a rotator, a pressure body, a first pressure lever, and a biasing mechanism. The biasing mechanism includes a first elastic body, a second pressure lever, a cam, and a cam follower. A relations of L1>L3, L2>L4, and L3

36. 发明授权

US09256172B2 Fixing device and image forming apparatus including same 有权
标题翻译：固定装置及其成像装置
公开(公告)号：US09256172B2
公开(公告)日：2016-02-09
申请号：US14184318
申请日：2014-02-19
申请人： Kenichi Hasegawa
发明人： Kenichi Hasegawa
IPC分类号： B65H29/54 , G03G15/20 , G03G15/00 , B65H29/56
CPC分类号： G03G15/2028 , B65H29/54 , B65H29/56 , G03G15/6532 , G03G2215/2032
摘要： A fixing device includes two rotary bodies and a recording-medium separation unit. The two rotary bodies are pressed against each other to form a nipping portion. The recording-medium separation unit is disposed at a position downstream from the nipping portion in a direction in which the recording medium is conveyed. The recording-medium separation unit includes a separation plate holder, a separation plate, and a spring. The separation plate holder extends in a longitudinal direction of one of the rotary bodies to hold the separation plate away from the one of the rotary bodies. The separation plate holder has rotation fulcrums and positioning surfaces at both ends in the longitudinal direction. The positioning surfaces are urged by the spring toward the one of the rotary bodies. Each of the positioning surfaces has a bent side to form a flange surface having one of the rotation fulcrums.
摘要翻译：定影装置包括两个旋转体和记录介质分离单元。两个旋转体彼此压靠以形成夹持部。记录介质分离单元被设置在记录介质被传送的方向上的夹持部分下游的位置处。记录介质分离单元包括分离板保持件，分隔板和弹簧。分离板保持件沿一个旋转体的纵向方向延伸，以将分离板保持远离旋转体之一。分离板保持具有沿纵向方向的两端的旋转支点和定位表面。定位表面被弹簧推向旋转体中的一个。每个定位表面具有弯曲的侧面以形成具有其中一个旋转支点的凸缘表面。

37. 发明授权

US08897688B2 Fixing device and image forming apparatus 有权
标题翻译：固定装置和成像装置
公开(公告)号：US08897688B2
公开(公告)日：2014-11-25
申请号：US14048531
申请日：2013-10-08
申请人： Kenichi Hasegawa
发明人： Kenichi Hasegawa
IPC分类号： G03G15/20
CPC分类号： G03G15/2064 , G03G15/2025 , G03G15/2053
摘要： A fixing device includes a nip formation pad contacting a part of an outer circumferential surface of an interior rotary body sliding thereover and a fixing belt looped over the interior rotary body and the nip formation pad. A pressing rotary body is pressed against the nip formation pad via the fixing belt to form a fixing nip between the pressing rotary body and the fixing belt. A lubricant applicator is mounted on the nip formation pad to apply a lubricant to the outer circumferential surface of the interior rotary body. The pressing rotary body, the fixing belt, the nip formation pad, and the interior rotary body are aligned in this order in a pressurization direction in which the pressing rotary body exerts pressure to the interior rotary body via the fixing belt and the nip formation pad to form the fixing nip.
摘要翻译：定影装置包括接触与其滑动的内部旋转体的外周表面的一部分的辊隙形成垫和环绕在内部旋转体和辊隙形成垫上的定影带。压紧旋转体经由定影带压靠在辊隙形成垫上，以在按压旋转体和定影带之间形成定影辊隙。润滑剂涂布器安装在辊隙形成垫上，以将润滑剂施加到内部旋转体的外周表面。按压旋转体，定影带，辊隙形成垫和内部旋转体在加压方向上依次排列，其中按压旋转体经由定影带和辊隙形成垫向内部旋转体施加压力以形成定影辊隙。

38. 发明申请

US20140193180A1 SHEET GUIDING UNIT SEPARATING MECHANISM, FIXING DEVICE WITH SHEET GUIDING UNIT SEPARATING MECHANISM, AND IMAGE FORMING APPARATUS WITH FIXING DEVICE WITH SHEET GUIDING UNIT SEPARATING MECHANISM 有权
标题翻译：表格指导单元分离机构，具有表导向单元分离机构的固定装置，以及具有用指南单元分离机构固定装置的图像形成装置
公开(公告)号：US20140193180A1
公开(公告)日：2014-07-10
申请号：US14134817
申请日：2013-12-19
申请人： Kenichi HASEGAWA
发明人： Kenichi HASEGAWA
IPC分类号： G03G15/20
CPC分类号： G03G15/2028 , G03G2215/2032
摘要： A sheet guiding unit separating mechanism includes a pair of first and second sheet guiding units disposed facing first and second sides of a recording medium, respectively, to guide a recording medium discharged from a fixing nip downstream. One of the pair of sheet guiding units facing the first side includes a first sheet guiding element disposed immediately downstream of the fixing nip and a second sheet guiding element disposed downstream of the first sheet guiding element. The second sheet guiding element is displaceable substantially perpendicular to the conveying direction of the recording medium and separate from the sheet guiding unit facing the second side when the sheet guiding unit separating mechanism is moved to separate from the fixing nip. The first and second sheet guiding elements together pivot around a first rotation fulcrum to separate from the fixing nip after the second sheet guiding element is displaced.
摘要翻译：纸张引导单元分离机构包括一对第一和第二纸张引导单元，其分别面向记录介质的第一和第二侧布置，以引导从定影压区下游排出的记录介质。面对第一侧的一对片材引导单元中的一个包括紧邻定影辊隙的下游设置的第一片材引导元件和设置在第一片材引导元件下游的第二片材引导元件。当片材引导单元分离机构被移动以与定影夹持部分离时，第二片材引导元件基本上垂直于记录介质的传送方向移位，并且与片材引导单元相对于第二侧分离。第一和第二片材引导元件一起在第二片材引导元件移位之后围绕第一旋转支点枢转以与定影辊隙分离。

39. 发明授权

US08744331B2 Fixing device and image forming apparatus incorporating same 有权
标题翻译：固定装置和包含其的图像形成装置
公开(公告)号：US08744331B2
公开(公告)日：2014-06-03
申请号：US13834516
申请日：2013-03-15
申请人： Kenichi Hasegawa
发明人： Kenichi Hasegawa
IPC分类号： G03G15/20
CPC分类号： G03G15/2017 , G03G15/2032 , G03G15/2053 , G03G15/2064 , G03G2215/2035
摘要： A fixing device includes a hollow, open-sided stationary heat roller, a flexible fuser belt, a fuser pad, a rotatable pressure member, a reinforcing member, and a sealing mechanism. The heat roller defines an elongated longitudinal side opening that opens into a hollow interior thereof. The fuser belt is looped for rotation around the heat roller to transfer heat radially outward from the roller circumference. The fuser pad is held substantially stationary along the roller opening outward from the roller interior and inward from the loop of the fuser belt. The pressure member is pressed against the fuser pad through the fuser belt to form a fixing nip. The reinforcing member is disposed within the roller interior to thrust against the fuser pad through the roller opening. The sealing mechanism is disposed on the roller opening to prevent foreign matter from entering the roller interior through the roller opening.
摘要翻译：定影装置包括中空的开放式固定加热辊，柔性定影带，定影垫，可旋转压力构件，加强构件和密封机构。加热辊限定了通向其中空的细长纵向侧开口。定影带环绕加热辊旋转，以便从辊周向径向向外传递热量。定影垫沿着滚子开口保持基本上静止，从滚筒内部向外并且从定影带的环向内保持。压力构件通过定影带压靠在定影垫上以形成定影压区。加强构件设置在辊内部，以通过辊开口抵靠定影垫。密封机构设置在辊开口上，以防止异物通过辊开口进入辊内部。

40. 发明授权

US08737878B2 Image forming apparatus including removable fixing device 有权
标题翻译：图像形成装置，包括可拆卸固定装置
公开(公告)号：US08737878B2
公开(公告)日：2014-05-27
申请号：US13048160
申请日：2011-03-15
申请人： Yoshiki Yamaguchi , Akira Shinshi , Kenichi Hasegawa , Hiroshi Yoshinaga , Naoki Iwaya , Ippei Fujimoto , Yutaka Ikebuchi , Shuntaroh Tamaki , Toshihiko Shimokawa
发明人： Yoshiki Yamaguchi , Akira Shinshi , Kenichi Hasegawa , Hiroshi Yoshinaga , Naoki Iwaya , Ippei Fujimoto , Yutaka Ikebuchi , Shuntaroh Tamaki , Toshihiko Shimokawa
IPC分类号： G03G15/16
CPC分类号： G03G21/1685 , G03G15/2039 , G03G2221/1639
摘要： An image forming apparatus includes a fixing device, a temperature detector, and a support member. The fixing device is removably installable in the image forming apparatus and includes a rotary fixing member to fuse a toner image on a recording medium, a fixing frame to support the fixing member, and an outer fixing cover provided to cover the fixing member and the fixing frame and having an opening from which a portion of a surface of the fixing member is exposed to the outside. The temperature detector is disposed opposing the fixing member to detect a temperature of the surface of the fixing member without contacting the fixing member when the fixing member is installed in the image forming apparatus. The support member supports the temperature detector to introduce the temperature detector into the inside of the fixing cover through the opening upon installation of the fixing member.
摘要翻译：图像形成装置包括定影装置，温度检测器和支撑构件。定影装置可拆卸地安装在图像形成装置中，并且包括用于将调色剂图像熔合在记录介质上的旋转固定构件，用于支撑固定构件的固定框架和设置成覆盖固定构件的外固定盖和固定并且具有开口，固定构件的表面的一部分从该开口暴露于外部。当固定构件安装在图像形成装置中时，温度检测器设置成与固定构件相对，以检测固定构件的表面的温度，而不接触固定构件。支撑构件支撑温度检测器，以在固定构件安装时通过开口将温度检测器引入固定盖的内部。

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