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100 条记录 (耗时 0.039 秒)

    Image heating device and image forming apparatus using the same
    31.
    发明授权
    Image heating device and image forming apparatus using the same 有权

    公开(公告)号：US06725009B1

    公开(公告)日：2004-04-20

    申请号：US09868361

    申请日：2001-06-15

    申请人： Hideki Tatematsu ,  Kenji Asakura ,  Masaru Imai

    发明人： Hideki Tatematsu ,  Kenji Asakura ,  Masaru Imai

    IPC分类号： G03G1520

    CPC分类号： G03G15/2064 ,  G03G15/2025 ,  G03G15/2028 ,  G03G2215/2016 ,  G03G2215/2025 ,  G03G2215/2032

    摘要： An image heating device with a small thermal capacity that can be heated rapidly. The image heating device includes a fixing belt (20) having a heat resistance; a rotatable heat-generating roller (21), which is at least partially conductive and arranged in contact with an inner peripheral surface of the fixing belt (20); a fixing roller (22), the fixing roller and the heat-generating roller (21) movably suspending the fixing belt (20) therebetween; and a magnetization means (24) for heating the heat-generating roller (21) through magnetization, which is arranged outside the heat-generating roller (21). In this image heating device, the magnetization means (24) heats the heat-generating roller (21) through magnetization after a rotating operation of the heat-generating roller (21) is started.

    Image heating device and image forming apparatus using the same
    32.
    发明授权
    Image heating device and image forming apparatus using the same 有权
    图像加热装置及其使用的图像形成装置

    公开(公告)号：US06625417B1

    公开(公告)日：2003-09-23

    申请号：US09914690

    申请日：2001-08-31

    申请人： Hiroshi Terada ,  Masaru Imai ,  Hideki Tatematsu ,  Akinori Toyoda ,  Kenji Asakura ,  Syuichi Watanabe

    发明人： Hiroshi Terada ,  Masaru Imai ,  Hideki Tatematsu ,  Akinori Toyoda ,  Kenji Asakura ,  Syuichi Watanabe

    IPC分类号： G03G1520

    CPC分类号： G03G15/2053 ,  G03G15/2064 ,  G03G2215/2016 ,  G03G2215/2032 ,  G03G2215/2041 ,  H05B6/145

    摘要： An image heating device having a predetermined amount of heat generation with a small electric current. The device has a heat-generating roller having magnetism and conductivity, and an exciting coil opposed to the peripheral face of the heat-generating roller and adapted for allowing the heat-generating roller to generate heat with electromagnetic induction. The exciting coil is composed of a bundle of copper wires extended in the direction of the rotation axis of the heat generating roller. The wires are circumferentially wound along the circumferential direction of the heat-generating roller. The bundled wires are arranged in close contact with each other in the circumferential direction of the heat-generating roller so as to cover the upper half of the heat-generating roller.

    摘要翻译： 一种图像加热装置，具有预定量的具有小电流的发热量。 该装置具有具有磁性和导电性的发热辊，以及与发热辊的周面相对的适于使发热辊通过电磁感应产生热量的励磁线圈。 励磁线圈由沿着发热辊的旋转轴线的方向延伸的一束铜线组成。 电线沿着发热辊的圆周方向周向缠绕。 捆扎线在发热辊的圆周方向上彼此紧密接触，以覆盖发热辊的上半部。

    Electromagnetic induction image heating device and image forming apparatus
    34.
    发明授权
    Electromagnetic induction image heating device and image forming apparatus 失效
    电磁感应图像加热装置及成像装置

    公开(公告)号：US06810230B2

    公开(公告)日：2004-10-26

    申请号：US10130936

    申请日：2002-05-24

    申请人： Masaru Imai ,  Kenji Asakura ,  Hideki Tatematsu ,  Shuichi Watanabe

    发明人： Masaru Imai ,  Kenji Asakura ,  Hideki Tatematsu ,  Shuichi Watanabe

    IPC分类号： G03G1520

    CPC分类号： H05B6/145 ,  G03G15/2042 ,  G03G2215/2016 ,  G03G2215/2032

    摘要： An excitation coil is arranged so as to be opposed to a rotatable heat generating roller of a conductive material, and on a rear side of the excitation coil, a core of a magnetic material is provided. The core is composed of a central core that is formed continuously in a rotation axis direction of the heat generating roller, and a plurality of U-shaped cores arranged at a distance from each other in that direction. A high-frequency current is applied to the excitation coil so that the heat generating roller 1 generates heat by electromagnetic induction. An additional coil is wound around the U-shaped core. Both ends of the additional coil are connected to a switching unit. When the switching unit is brought to a connected state, under an induction current generated in the additional coil, a magnetic flux in a direction in which a magnetic flux of the excitation coil is cancelled out is generated, so that heat generation of the heat generating roller can be suppressed. The switching unit is switched over according to a width of a paper sheet to be passed and a temperature distribution in the rotation axis direction. Thus, a uniform temperature distribution of the heat generating roller in the rotation axis direction can be maintained.

    摘要翻译： 激励线圈被布置成与导电材料的可旋转的发热辊相对，并且在励磁线圈的后侧设置有磁性材料的芯。 芯部由在发热辊的旋转轴线方向上连续形成的中心芯和沿该方向彼此间隔设置的多个U字形芯组成。 对励磁线圈施加高频电流，使得发热辊1通过电磁感应产生热量。 一个额外的线圈缠绕在U形芯上。 附加线圈的两端连接到开关单元。 当切换单元处于连接状态时，在附加线圈中产生的感应电流下，产生沿励磁线圈的磁通量抵消的方向的磁通量，从而产生发热量 辊可以抑制。 切换单元根据要通过的纸张的宽度和旋转轴方向上的温度分布而切换。 因此，可以保持发热辊在旋转轴线方向上均匀的温度分布。

    Fixing apparatus and image forming apparatus provided therewith
    36.
    发明授权
    Fixing apparatus and image forming apparatus provided therewith 有权
    固定装置和图像形成装置

    公开(公告)号：US07603069B2

    公开(公告)日：2009-10-13

    申请号：US11685244

    申请日：2007-03-13

    申请人： Shinji Yamana ,  Kenji Asakura ,  Toshiaki Kagawa ,  Hiroyuki Yamaji

    发明人： Shinji Yamana ,  Kenji Asakura ,  Toshiaki Kagawa ,  Hiroyuki Yamaji

    IPC分类号： G03G15/20

    CPC分类号： G03G15/2064 ,  G03G2215/2016 ,  G03G2215/2019

    摘要： In a fixing apparatus and an image forming apparatus of the present invention, an external heating section is provided that includes: an external heating belt; two heat rollers suspending the external heating belt and pressed against a fixing roller via the external heating belt; and a release/contact mechanism for causing the two heat rollers to separate from or contact with the fixing roller. With the heat rollers separated from the fixing roller by the release/contact mechanism, the external heating belt and the fixing roller are in contact with each other and the external heating belt follows rotation of the fixing roller. As a result, a fixing apparatus is provided that includes an external release/contact mechanism that can quickly operate in a small space and at low power without encouraging deterioration of the belt member. An image forming apparatus provided with such a fixing apparatus is also provided.

    摘要翻译： 在本发明的定影装置和图像形成装置中，提供外部加热部，其包括：外部加热带; 两个热辊将外部加热带悬挂并经由外部加热带压靠在定影辊上; 以及用于使两个热辊与定影辊分离或与定影辊接触的释放/接触机构。 由于通过释放/接触机构与定影辊分离的热辊，外部加热带和定影辊彼此接触，并且外部加热带随着定影辊的旋转。 结果，提供一种定影装置，其包括外部释放/接触机构，其可以在小的空间和低功率下快速地操作，而不会促使带部件的劣化。 还提供了一种设置有这种定影装置的图像形成装置。

    Chip antenna
    37.
    发明授权
    Chip antenna 有权

    公开(公告)号：US06583769B2

    公开(公告)日：2003-06-24

    申请号：US09894938

    申请日：2001-06-28

    申请人： Koji Shiroki ,  Kenji Asakura

    发明人： Koji Shiroki ,  Kenji Asakura

    IPC分类号： H01Q136

    CPC分类号： H01Q11/08 ,  H01Q1/362 ,  H01Q1/38

    摘要： A chip antenna capable of reducing the spiral pitch of an antenna line to be smaller than that of a conventional one. Conductor patterns are electrically connected sequentially in series through via holes so as to form a spiral antenna line. The antenna line has a winding axis which is arranged either in a zigzag manner or along a straight line. Adjacent wound portions have an equal diameter or width or the adjacent portions may have unequal widths. Since adjacent via holes are arranged in a staggered arrangement with each other, the distance between the adjacent via holes is larger than the spiral pitch of the antenna line, allowing the adjacent portions to be closer together than a conventional chip antenna, thereby allowing the resonance frequency to be reduced.

    Chip-antenna
    38.
    发明授权
    Chip-antenna 有权
    芯片天线

    公开(公告)号：US6028568A

    公开(公告)日：2000-02-22

    申请号：US208223

    申请日：1998-12-09

    申请人： Kenji Asakura ,  Toshifumi Oida ,  Harufumi Mandai

    发明人： Kenji Asakura ,  Toshifumi Oida ,  Harufumi Mandai

    IPC分类号： H01Q1/36 ,  H01Q1/38 ,  H01Q1/40 ,  H01Q7/00 ,  H01Q9/30 ,  H01Q9/36 ,  H01Q9/42 ,  H01Q1/24

    CPC分类号： H01Q1/38 ,  H01Q1/362

    摘要： The invention provides a chip-antenna, comprising: a base member including a mounting surface and made of at least one of dielectric ceramic and magnetic ceramic; at least two conductors disposed within said base member or on a surface of said base member, at least a portion of said conductors being substantially perpendicular to the mounting surface of said base member; a feeding electrode for applying a voltage to said conductors and disposed on the surface of said base member; a ground electrode disposed at least one on the surface of and within said base member; one of said conductors being served as a first conductor, one end of which is connected to said feeding electrode; the rest of said conductor being served as a second conductor, one end of which are connected to said ground electrode; and the other end of said first conductor and the other end of said second conductor being connected.

    摘要翻译： 本发明提供了一种芯片天线，包括：基座构件，包括安装表面，由介电陶瓷和磁性陶瓷中的至少一种制成; 至少两个导体，其设置在所述基座构件内或所述基座构件的表面上，所述导体的至少一部分基本上垂直于所述基座构件的安装表面; 用于向所述导体施加电压并设置在所述基底构件的表面上的馈电电极; 接地电极，其设置在所述基底构件的表面上和内部的至少一个上; 所述导体中的一个被用作第一导体，其一端连接到所述馈电电极; 所述导体的其余部分被用作第二导体，其一端连接到所述接地电极; 并且所述第一导体的另一端和所述第二导体的另一端连接。

    Helical antenna and method of making same
    39.
    发明授权
    Helical antenna and method of making same 失效
    螺旋天线及其制作方法

    公开(公告)号：US5903242A

    公开(公告)日：1999-05-11

    申请号：US718967

    申请日：1996-09-26

    申请人： Teruhisa Tsuru ,  Harufumi Mandai ,  Seiji Kanba ,  Koji Shiroki ,  Kenji Asakura

    发明人： Teruhisa Tsuru ,  Harufumi Mandai ,  Seiji Kanba ,  Koji Shiroki ,  Kenji Asakura

    IPC分类号： H01Q13/24 ,  H01Q1/36 ,  H01Q1/38 ,  H01Q1/40 ,  H01Q13/26

    CPC分类号： H01Q1/38 ,  H01Q1/362

    摘要： A helical antenna is provided in which a predetermined resonance frequency can be determined at the design stage. The helical antenna includes a conductor which is formed from copper or a copper alloy inside a base in the shape of a rectangular parallelopiped formed from a dielectric material having barium oxide, aluminum oxide and silica as main constituents and which is wound in a helical shape along the length of the base. In such a case, the resonance frequency f0 of the helical antenna and the inductance components L of the conductor satisfy the relationship: ln (L)=A0+A1.times.ln (f0), where ln is a natural logarithm, and A0 and A1 are constants. One end of the conductor is extended onto the surface of the base and forms a power feeding terminal connected to a power feeding terminal formed on the surface of the base for applying a voltage to the conductor, and the other end thereof forms a free end inside the base.

    摘要翻译： 提供螺旋天线，其中可以在设计阶段确定预定的共振频率。 螺旋天线包括由铜或铜合金形成的导体，该铜或铜合金形成为由氧化钡，氧化铝和二氧化硅作为主要成分的电介质材料形成的矩形平行六面体形状，并且沿着 基座的长度。 在这种情况下，螺旋天线的谐振频率f0和导体的电感分量L满足关系：ln（L）= A0 + A1xln（f0）其中ln是自然对数，A0和A1是常数 。 导体的一端延伸到基座的表面上，并形成一个馈电端子，该馈电端子连接到形成在基座的表面上的馈电端子，用于向导体施加电压，另一端在内部形成自由端 的基地。