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51.发明授权Developer-carrying member, and developing device and image forming apparatus including the member 有权显影剂承载构件，以及包括该构件的显影装置和图像形成装置公开(公告)号：US06201942B1
公开(公告)日：2001-03-13
申请号：US09537876
申请日：2000-03-29
申请人： Takao Honda , Nobuaki Hara , Hatsuo Tajima , Tsuyoshi Watanabe , Keitaro Yamashita , Hiromi Kashiwagi
发明人： Takao Honda , Nobuaki Hara , Hatsuo Tajima , Tsuyoshi Watanabe , Keitaro Yamashita , Hiromi Kashiwagi
IPC分类号： G03G1508
CPC分类号： G03G15/0818 , G03G15/0928 , G03G2215/0861
摘要： A developer-carrying member to be installed in an electrophotographic developing device for carrying and conveying a developer along a surface thereof, is formed of a substrate, and an intermediate electroless plating layer and an electroplating layer disposed in this order on the substrate. As a result of the electroless and electro double plating layer structure, the developer-carrying member is provided with a wear-resistant surface which has an appropriate degree of roughness suitable for conveying the developer thereon and is yet free from minute projections and cracks undesirable from the viewpoint of continuous image forming performances.
摘要翻译： 安装在电子照相显影装置中用于承载和传送显影剂沿其表面的显影剂承载构件由基板，以及依次设置在基板上的中间化学镀层和电镀层形成。 作为化学镀和电镀双层电镀层结构的结果，显影剂承载构件设置有耐磨表面，该耐磨表面具有适于在其上输送显影剂的适当的粗糙度，并且没有不希望的微小突起和裂纹 连续成像性能的观点。
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公开(公告)号：US5963702A
公开(公告)日：1999-10-05
申请号：US756350
申请日：1996-11-26
申请人： Keitaro Yamashita
发明人： Keitaro Yamashita
CPC分类号： H04N5/9205 , H04N5/926
摘要： A device capable of performing digest recording for a broadcast signal including a multiple of channels. The broadcast signal is received by an antenna and passed to one or more channel tuners. The tuner outputs, or "broadcast programs" are monitored and portions of each program are selected for recording in response to information detected in the program--for example, in response to scene changes. The portions selected for recording are encoded and multiplexed for recording on a recording medium along with selection information.
摘要翻译： 一种能够对包括多个通道的广播信号进行摘要记录的设备。 广播信号由天线接收并传送到一个或多个信道调谐器。 监视调谐器输出或“广播节目”，并且响应于在节目中检测到的信息（例如响应于场景变化）而选择每个节目的部分进行记录。 选择用于记录的部分与选择信息一起被编码和多路复用以用于记录在记录介质上。
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公开(公告)号：US5668519A
公开(公告)日：1997-09-16
申请号：US626567
申请日：1996-04-02
申请人： Keitaro Yamashita
发明人： Keitaro Yamashita
CPC分类号： B03C1/12 , G03G15/0921 , Y10T29/49075
摘要： The magnet roll of the present invention includes a shaft and a permanent magnet member fixed to the shaft, the permanent magnet member being composed of a hollow, cylindrical magnet body, and a magnetic pole piece fixed to a recess of the hollow, cylindrical magnet body, the hollow, cylindrical magnet body having a plurality of axially extending magnetic poles arranged circumferentially on the surface, the magnetic pole piece being provided with two magnetic poles having the same polarity for constituting a developing magnetic pole, and a thermally demagnetized portion being formed substantially at a center of the developing magnetic pole such that the permanent magnet member generates a magnetic flux density distribution having two peaks of the same polarity at a position of the developing magnetic pole.
摘要翻译： 本发明的磁辊包括固定在轴上的轴和永磁体，永磁体由中空的圆柱形磁体和固定在中空的圆柱形磁体的凹部上的磁极片组成 所述中空圆柱形磁体具有在表面上周向设置的多个轴向延伸的磁极，所述磁极片设置有两个具有相同极性的磁极，用于构成显影磁极，并且热退磁部分基本上形成 在显影磁极的中心处，使得永磁体构件在显影磁极的位置处产生具有两个具有相同极性的峰值的磁通密度分布。
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54.发明授权Method for treating magnet roll by blasting with nonmagnetic spherical particles 失效用非磁性球形颗粒喷砂处理磁辊的方法
公开(公告)号：US5608502A
公开(公告)日：1997-03-04
申请号：US508338
申请日：1995-07-27
申请人： Keitaro Yamashita , Takeshi Satoh
发明人： Keitaro Yamashita , Takeshi Satoh
CPC分类号： G03G15/0928
摘要： A method for treating a magnet roll including the steps of providing a permanent magnet member having an outer circumferential surface and a plurality of axially extending magnetic poles formed in the outer circumferential surface, slidably surrounding the member with a non-magnetic metal sleeve of hollow cylindrical shape, the sleeve and the member being rotatable relative to each other, blasting a surface of the sleeve with spherical particles of a non-magnetic material having a density in a range of from 3 to 4 g/cm.sup.3 and Mohs' hardness in a range of from 11 to 14 to produce a surface roughness (R.sub.z) in a range of from 0.5 to 8 .mu.m.
摘要翻译： 一种用于处理磁辊的方法，包括以下步骤：提供具有外圆周表面的永磁体构件和形成在外周表面中的多个轴向延伸的磁极，可滑动地围绕该构件的中空圆柱形的非磁性金属套筒 形状，套筒和构件可以相对于彼此旋转，用密度在3至4g / cm 3范围内的非磁性材料的球形颗粒喷射套筒的表面，并且莫氏硬度在一定范围内 为11至14，以产生0.5至8μm范围内的表面粗糙度（Rz）。
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公开(公告)号：US5498837A
公开(公告)日：1996-03-12
申请号：US479842
申请日：1995-06-07
申请人： Keitaro Yamashita
发明人： Keitaro Yamashita
CPC分类号： G03G15/0928 , F16C13/00
摘要： The sleeve for a developing roll member according to the present invention is composed of two layers respectively made of an aluminum alloy and an austenitic stainless steel which are integrated together by plastic working, thereby having good durability without causing much increase in weight as well as in cost when compared with an aluminum alloy sleeve.
摘要翻译： 根据本发明的显影辊构件的套筒由分别由铝合金和奥氏体不锈钢制成的两层构成，它们通过塑性加工结合在一起，从而具有良好的耐久性，而不会引起重量的大幅度增加 与铝合金套管相比的成本。
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56.发明授权
公开(公告)号：US5359477A
公开(公告)日：1994-10-25
申请号：US52236
申请日：1993-04-22
申请人： Keitaro Yamashita , Hiroshi Fujii
发明人： Keitaro Yamashita , Hiroshi Fujii
IPC分类号： G11B15/675 , G11B15/18 , G11B15/665 , G11B23/087 , G11B25/06 , G11B5/008
CPC分类号： G11B25/066 , G11B15/1883 , G11B15/6656 , G11B23/087
摘要： A recording/reproducing apparatus is capable of operating with either one of two different types of tape cassettes which each have a cassette housing with a bottom wall having an underside formed with locating holes in a respective pattern, different from the pattern of the locating holes of the other type of tape cassettes. The recording/reproducing apparatus is provided with locating pin devices at least some of which have a retractable locating pin capable of retracting below a predetermined plane of the underside of the bottom wall of the positioned tape cassette when such tape cassette lacks a locating hole at the location of the respective locating pin device.
摘要翻译： 记录/再现装置能够使用两种不同类型的磁带盒中的一种来进行操作，这些磁带盒中的每一个都具有带壳体，底座壁具有形成有相应图案的定位孔的底面，不同于定位孔的图案 另一种类型的磁带盒。 记录/再现装置设置有定位销装置，其中至少一些定位销具有可缩回的定位销，该定位销能够在定位的磁带盒的底壁的下侧的预定平面下方缩回， 各个定位销装置的位置。
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公开(公告)号：US5146380A
公开(公告)日：1992-09-08
申请号：US680051
申请日：1991-04-03
申请人： Hiroshi Fujii , Keitaro Yamashita
发明人： Hiroshi Fujii , Keitaro Yamashita
IPC分类号： G11B23/087
CPC分类号： G11B23/08721
摘要： A reel lock mechanism for a tape cassette, including a lock portion having a pair of pawls adapted to engage a plurality of teeth formed at outer circumferences of a pair of tape reels for winding a tape, a slide portion slidably supported to a cassette case of the tape cassette, and a twistable connecting portion integrally connecting the lock portion with the slide portion. When one of the tape reels is moved in a slacking direction of the tape by vibration or the like applied to the tape cassette, the connecting portion is twisted by a moving force applied to one of the pawls to thereby rotate the lock portion. As a result, the other pawl is moved so as to rotate the other tape reel in a direction increasing a tension of the tape. Therefore, a locked condition of the other tape reel is prevented from being released, and the tape is always maintained under a proper tension, thus improving a reliability of reel locking.
摘要翻译： 一种用于盒式磁带的卷轴锁定机构，包括锁定部分，该锁定部分具有一对卡爪，该卡爪适于啮合形成在一对磁带卷轴上的外圆周上的多个齿，用于缠绕磁带;可滑动地支撑在盒壳体上的滑动部分 所述带盒以及将所述锁定部与所述滑动部一体连接的可扭转连接部。 当其中一个磁带盘通过施加到带盒上的振动等沿着磁带的松弛方向移动时，连接部分被施加到一个棘爪的移动力扭转，从而旋转锁定部分。 结果，另一个棘爪被移动以使另一个磁带卷轴沿增加带的张力的方向旋转。 因此，防止另一个带盘的锁定状态被释放，并且磁带始终保持在适当的张力下，从而提高卷轴锁定的可靠性。
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公开(公告)号：USRE33770E
公开(公告)日：1991-12-17
申请号：US562698
申请日：1990-08-06
IPC分类号： G03G15/20
CPC分类号： G03G15/2053 , G03G15/2064
摘要： A heat-fixing apparatus comprising a heating roll to be brought into contact with a toner image borne on a sheet member, a pressure roll in pressed contact with the heating roll to provide a nip portion therebetween, each of the heating roll and the pressure roll being constituted by a cylindrical core coated with a heat-resistant, resilient layer and a resin surface layer having release properties, the heating roll and the pressure roll having such surface hardness as to make the nip portion substantially flat and also having substantially the same outer diameter, and the contact pressure of the rolls being such that the nip portion has a width within the range of providing good fixing capability. This heat-fixing apparatus can perform toner image fixing even on sheet members of a plurality of plies such as envelopes without creasing.
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公开(公告)号：US4814819A
公开(公告)日：1989-03-21
申请号：US105538
申请日：1987-10-08
IPC分类号： G03G15/20
CPC分类号： G03G15/2053 , G03G15/2064
摘要： A heat-fixing apparatus comprising a heating roll to be brought into contact with a toner image borne on a sheet member, a pressure roll in pressed contact with the heating roll to provide a nip portion therebetween, each of the heating roll and the pressure roll being constituted by a cylindrical core coated with a heat-resistant, resilient layer and a resin surface layer having release properties, the heating roll and the pressure roll having such surface hardness as to make the nip portion substantially flat and also having substantially the same outer diameter, and the contact pressure of the rolls being such that the nip portion has a width within the range of providing good fixing capability. This heat-fixing apparatus can perform toner image fixing even on sheet members of a plurality of plies such as envelopes without creasing.
摘要翻译： 一种热定影装置，其特征在于，包括：加热辊，其与承载在片材上的调色剂图像接触;加压辊，与所述加热辊压接，以在其间形成夹持部;加热辊和所述加压辊 由具有耐热弹性层的圆筒形芯和具有剥离性能的树脂表面层构成，加热辊和压力辊具有这样的表面硬度，使得夹持部基本上平坦并且也具有基本相同的外部 直径，并且辊的接触压力使得辊隙部分具有在提供良好定影能力的范围内的宽度。 这种热定影装置即使在诸如信封之间的多个层的片材构件上也能够进行调色剂图像定影而没有褶皱。
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公开(公告)号：US4714819A
公开(公告)日：1987-12-22
申请号：US884956
申请日：1986-07-14
申请人： Keitaro Yamashita
发明人： Keitaro Yamashita
CPC分类号： G03G15/2053
摘要： A directly heating type fixing apparatus for use in an image forming device such as an electronic copying machine, has a heating roll which includes an heat generating electric resistance layer and a toner releasing layer both formed on the surface of a cylindrical body thereof, and a pressure roll which is arranged to contact the heating roll under pressure. Current collecting bearings made of an electrically conductive material are provided on both sides of the heating roll, respectively. These current collecting bearings and the heat generating electric resistance layer of the heating roll are electrically connected with each other.
摘要翻译： 一种用于诸如电子复印机的图像形成装置的直接加热型定影装置，具有包括形成在其圆筒体的表面上的发热电阻层和调色剂释放层的加热辊， 压力辊被布置成在加压下接触加热辊。 分别在加热辊的两侧设置由导电材料制成的集电轴承。 这些集电轴承和加热辊的发热电阻层彼此电连接。
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