公开(公告)号：US20180203384A1

公开(公告)日：2018-07-19

申请号：US15841383

申请日：2017-12-14

申请人： Jun OKAMOTO ,  Yoshio Hattori ,  Haruyuki Honda ,  Takumi Waida ,  Kiwako Hiroi ,  Yuusuke Furuichi ,  Tomoya Adachi

发明人： Jun OKAMOTO ,  Yoshio Hattori ,  Haruyuki Honda ,  Takumi Waida ,  Kiwako Hiroi ,  Yuusuke Furuichi ,  Tomoya Adachi

IPC分类号： G03G15/20

CPC分类号： G03G15/2025 ,  G03G15/2053

摘要： A fixing device includes a fixing belt and a pressure rotator that presses against a nip formation pad via the fixing belt to form a fixing nip between the pressure rotator and the fixing belt. A first holder holds a first lateral end of the fixing belt in an axial direction thereof. A second holder holds a second lateral end of the fixing belt in the axial direction thereof. The second holder, together with the first holder, defines a holder interval provided between the first holder and the second holder in the axial direction of the fixing belt. A lubricant supplying sheet impregnated with a lubricant is sandwiched between the nip formation pad and the fixing belt at the fixing nip. The lubricant supplying sheet has a sheet span in the axial direction of the fixing belt. The sheet span is within the holder interval.

公开(公告)号：US20230008258A1

公开(公告)日：2023-01-12

申请号：US17852381

申请日：2022-06-29

申请人： Hiromasa TAKAGI ,  Seiji SAITOH ,  Jun OKAMOTO ,  Tamotsu IKEDA ,  Yoshikuni SASAKI ,  Takahiro IMADA

发明人： Hiromasa TAKAGI ,  Seiji SAITOH ,  Jun OKAMOTO ,  Tamotsu IKEDA ,  Yoshikuni SASAKI ,  Takahiro IMADA

IPC分类号： G03G21/20 ,  G03G15/20 ,  G03G15/00

摘要： An image forming apparatus includes two rotators, a driver driving the rotators, a heating device to heat the rotator, a blower blowing air to the heating device, a temperature detector, a recording medium detector, a cover, an open-close detector, and circuitry. The circuitry detects an abnormal state and stops heat generation, determines whether the cover is closed using the open-close detector, controls the blower to blow air when the cover is closed, determines whether the recording medium is in the nip using the recording medium detector, controls the driver to rotate the two rotators when the cover is closed and no recording medium is in the nip, determines whether a temperature detected is equal to or lower than a threshold value before the cover is opened, and controls the blower to decrease an air volume when the temperature detected is equal to or lower than the threshold value.

公开(公告)号：US20230004107A1

公开(公告)日：2023-01-05

申请号：US17825471

申请日：2022-05-26

申请人： Seiji SAITOH ,  Takahiro IMADA ,  Yoshikuni SASAKI ,  Tamotsu IKEDA ,  Hiromasa TAKAGI ,  Jun OKAMOTO

发明人： Seiji SAITOH ,  Takahiro IMADA ,  Yoshikuni SASAKI ,  Tamotsu IKEDA ,  Hiromasa TAKAGI ,  Jun OKAMOTO

IPC分类号： G03G15/20

摘要： A contact-separation device brings a contact-separation member into contact with a contacted member separably and includes a biasing member that generates a biasing force. A presser presses the contact-separation member against the contacted member in a pressing direction with the biasing force from the biasing member. A cam presses the presser in an opposite direction being opposite to the pressing direction. The cam is rotatable and has a cam face. A cam follower has a cam contact face that contacts the cam face of the cam. The cam contact face is curved to project toward the cam. The cam contact face has a curvature that is smaller than a greatest curvature of the cam face of the cam and is greater than a smallest curvature of the cam face of the cam.

公开(公告)号：US20200241452A1

公开(公告)日：2020-07-30

申请号：US16750043

申请日：2020-01-23

申请人： Seiji SAITOH ,  Toshiharu HACHISUKA ,  Hiroshi SEO ,  Yutaka NAITOH ,  Daisuke INOUE ,  Masao KATOH ,  Yutaka ASO ,  Naohiro FUNADA ,  Tomoo ASAMI ,  Jun OKAMOTO

发明人： Seiji SAITOH ,  Toshiharu HACHISUKA ,  Hiroshi SEO ,  Yutaka NAITOH ,  Daisuke INOUE ,  Masao KATOH ,  Yutaka ASO ,  Naohiro FUNADA ,  Tomoo ASAMI ,  Jun OKAMOTO

IPC分类号： G03G15/20

摘要： A fixing device includes at least one temperature detector and a device-side connector. The at least one temperature detector is configured to detect a temperature of the fixing device. The device-side connector is configured to transmit a temperature detection signal from the at least one temperature detector to an image forming apparatus body by mutual contact between a terminal of the device-side connector and a terminal of a body-side connector of the image forming apparatus body. A lead wire of the at least one temperature detector is branched into a plurality of wires connected to the device-side connector.

公开(公告)号：US20240319636A1

公开(公告)日：2024-09-26

申请号：US18605881

申请日：2024-03-15

申请人： Tamotsu IKEDA ,  Yutaka IKEBUCHI ,  Yuusuke FURUICHI ,  Seiji SAITOH ,  Jun OKAMOTO

发明人： Tamotsu IKEDA ,  Yutaka IKEBUCHI ,  Yuusuke FURUICHI ,  Seiji SAITOH ,  Jun OKAMOTO

IPC分类号： G03G15/20

CPC分类号： G03G15/2017 ,  G03G15/2064

摘要： A fixing device includes a fixing rotator, a pressure rotator, a planar heater, a holder, a conductor, and a support. The pressure rotator presses the fixing rotator to form a fixing nip between the pressure rotator and the fixing rotator. The planar heater contacts an inner surface of the fixing rotator. The holder holds the heater and guides the fixing rotator. The conductor is grounded and contacts the inner surface of the fixing rotator. The support supports the holder and has a shape of regulating rotation of the conductor.

公开(公告)号：US20240310776A1

公开(公告)日：2024-09-19

申请号：US18599370

申请日：2024-03-08

申请人： Jun OKAMOTO ,  Yuusuke FURUICHI ,  Seiji SAITOH ,  Tamotsu IKEDA ,  Shigeo NANNO

发明人： Jun OKAMOTO ,  Yuusuke FURUICHI ,  Seiji SAITOH ,  Tamotsu IKEDA ,  Shigeo NANNO

IPC分类号： G03G21/16 ,  G03G15/20

CPC分类号： G03G21/1619 ,  G03G15/20 ,  G03G21/1633 ,  G03G21/1647 ,  G03G21/1652 ,  G03G2221/1639

摘要： A fixing device detachably attachable to an image forming apparatus includes a housing frame having an open front side in an insertion direction in which the fixing device is inserted into the image forming apparatus. The housing frame includes a support plate, as a back side of the housing frame in the insertion direction, and a pair of side plates extending in the insertion direction. The support plate includes an extension extending beyond one of the pair of side plates. The extension includes an engaged portion to be engaged with an engaging portion of the image forming apparatus when the fixing device is mounted on the image forming apparatus.

公开(公告)号：US20210364986A1

公开(公告)日：2021-11-25

申请号：US17324510

申请日：2021-05-19

申请人： Jun OKAMOTO

发明人： Jun OKAMOTO

IPC分类号： G03G21/20 ,  G03G15/20

摘要： A cooling device cools, with air, a heating member having a longitudinal direction. The cooling device includes a blower, an air duct, and an air-volume varying mechanism. The blower blow the air. The air passes through the air duct. The air duct has a first opening to which the air is supplied by the blower, a second opening to face a portion of the heating member, and a third opening to face another portion of the heating member. The air-volume varying mechanism changes an air volume of the air discharged from the second opening and the third opening.

公开(公告)号：US20120237274A1

公开(公告)日：2012-09-20

申请号：US13422784

申请日：2012-03-16

申请人： Jun OKAMOTO

发明人： Jun OKAMOTO

IPC分类号： G03G15/20

CPC分类号： G03G15/205 ,  G03G2215/2032

摘要： A fixing unit includes a fixing rotatable body that is located at a side of a recording medium, the side carrying a not-fixed image, a pressing rotatable body that is located at another side of the recording medium and that is disposed so as to abut on the fixing rotatable body, a fixing heating unit that heats the fixing rotatable body, a first pressing heating unit that heats the pressing rotatable body from inside thereof, and a second pressing heating unit that is disposed opposite to a surface of the pressing rotatable body and that heats the pressing rotatable body from outside thereof.

摘要翻译： 定影单元包括位于记录介质一侧的固定可旋转体，承载未固定图像的侧面，位于记录介质的另一侧的按压可旋转体，并且被设置为邻接 在固定可旋转体上，加热固定旋转体的定影加热单元，从内部加热可压制旋转体的第一加压加热单元和与按压可旋转体的表面相对设置的第二加压单元 并且从外部对加压的可旋转体进行加热。

公开(公告)号：US20120195623A1

公开(公告)日：2012-08-02

申请号：US13357135

申请日：2012-01-24

申请人： Jun OKAMOTO

发明人： Jun OKAMOTO

IPC分类号： G03G21/00

CPC分类号： G03G15/2075 ,  G03G15/20 ,  G03G15/2025

摘要： A fixing device that fixes a toner image on a recording medium while the recoding medium is conveyed by passing through a nip formed by a heating member and a pressing member includes: a cleaning unit that is provided in at least any one of the heating member and the pressing member for removing toner adhered thereto. The cleaning unit is in contact with a member to be cleaned and a rotating cleaning member is in contact with the member to be cleaned in a downstream side of the cleaning unit in a rotation direction.

摘要翻译： 一种定影装置，其通过通过由加热构件和按压构件形成的辊隙输送记录介质，将调色剂图像固定在记录介质上，包括：清洁单元，设置在加热构件和 用于除去与其粘附的调色剂的按压构件。 清洁单元与要清洁的构件接触，并且旋转清洁构件在旋转方向上与清洁单元的下游侧接触待清洁构件。

公开(公告)号：US20110265915A1

公开(公告)日：2011-11-03

申请号：US13180424

申请日：2011-07-11

申请人： Keiko TSUCHIYA ,  Hisato KOSHIBA ,  Jun OKAMOTO ,  Takao MIZUSHIMA

发明人： Keiko TSUCHIYA ,  Hisato KOSHIBA ,  Jun OKAMOTO ,  Takao MIZUSHIMA

IPC分类号： H01F1/01

CPC分类号： H01F1/26 ,  B82Y25/00 ,  B82Y30/00 ,  C22C38/02 ,  C22C45/02 ,  H01F1/14766 ,  H01F1/15308 ,  H01F1/15333 ,  H01F1/15375 ,  H01F41/0246

摘要： An Fe-based soft magnetic alloy includes: Fe; and a component R, wherein the component R contains at least one of P, C, B, and Si, there is a temperature difference of equal to or greater than 20° C. between a precipitation temperature of an α-Fe crystal phase and a precipitation temperature of an Fe compound, the Fe-based soft magnetic alloy is formed of a mixed-phase structure in which an amorphous phase and the α-Fe crystal phase are mixed, and a diameter of a crystallite of the α-Fe crystal phase is equal to or smaller than 50 nm, and a volume fraction of the α-Fe crystal phase to the total is equal to or lower than 40%. In addition, the composition formula is represented by Fe100-x-uJxRu, a component J contains at least one of Cr, Co, Ni, and Nb, and 0 at %≦x≦6 at %, 17 at %≦u≦25 at %, and 17 at %≦x+u≦27.1 at % are satisfied.

摘要翻译： Fe基软磁合金包括：Fe; 和组分R，其中组分R包含P，C，B和Si中的至少一种，在α-Fe结晶相的沉淀温度和α-Fe结晶相的沉淀温度与...之间存在等于或大于20℃的温度差 Fe化合物的沉淀温度，Fe系软磁合金由混合了非晶相和α-Fe结晶相的混合相构成，α-Fe结晶的微晶直径 相等于或小于50nm，α-Fe结晶相的总体积分数等于或低于40％。 另外，组成式由Fe100-x-uJxRu表示，成分J含有Cr，Co，Ni和Nb中的至少一种，0at％和nlE; x和nlE; 6at％，17at％和nlE; u＆ ; 25at％，17 at％＆nlE; x + u＆nlE; 27.1 at％。