公开(公告)号：US4576463A

公开(公告)日：1986-03-18

申请号：US603260

申请日：1984-04-23

申请人： Koji Sakamoto ,  Kazuo Kobayashi

发明人： Koji Sakamoto ,  Kazuo Kobayashi

IPC分类号： G03G15/08 ,  G03G15/09

CPC分类号： G03G15/0822 ,  G03G15/09 ,  G03G2215/0614 ,  G03G2215/0636 ,  G03G2215/0653

摘要： A toner charging member to which a toner is conveyed and supplied is located in the vicinity of a photoconductive element which is to carry an electrostatic latent image thereon. The toner charging member charges the toner conveyed thereto to a selected polarity by friction, so that a thin uniformly charged toner layer is formed on the toner charging member. The charged toner particles are released from the toner layer on the charging member onto the latent image on the photoconductive element.The toner charging member has an insulating member on its surface. A first discharging means is provided to dissipate accumulated charge on the insulator substantially simultaneously with its operation for removing toner particles from the charging member those which were not been supplied to the latent image. A second discharging means is disposed in a position downstream of a station where the first means removes the residual toner and upstream of a station where the toner is supplied to the charging member, in order to remove the charge from the insulator.A number of microelectrodes are formed on the toner charging member or on its insulator to attain a prominent edge effect even when use is made of a one component type developer, which consists of toner particles alone.

公开(公告)号：US4445771A

公开(公告)日：1984-05-01

申请号：US326098

申请日：1981-11-30

申请人： Koji Sakamoto ,  Kazuo Kobayashi

发明人： Koji Sakamoto ,  Kazuo Kobayashi

IPC分类号： G03G15/08 ,  G03G15/09

CPC分类号： G03G15/0822 ,  G03G15/09 ,  G03G2215/0614 ,  G03G2215/0636 ,  G03G2215/0653

摘要： A toner charging member to which a toner is conveyed and supplied is located in the vicinity of a photoconductive element which is to carry an electrostatic latent image thereon. The toner charging member charges the toner conveyed thereto to a selected polarity by friction, so that a thin uniformly charged toner layer is formed on the toner charging member. The charged toner particles are released from the toner layer on the charging member onto the latent image on the photoconductive element.The toner charging member has an insulating member on its surface. A first discharging means is provided to dissipate accumulated charge on the insulator substantially simultaneously with its operation for removing toner particles from the charging member those which were not been supplied to the latent image. A second discharging means is disposed in a position downstream of a station where the first means removes the residual toner and upstream of a station where the toner is supplied to the charging member, in order to remove the charge from the insulator.A number of microelectrodes are formed on the toner charging member or on its insulator to attain a prominent edge effect even when use is made of a one component type developer, which consists of toner particles alone.

摘要翻译： 调色剂输送和供给的调色剂充电部件位于其上携带静电潜像的感光元件附近。 调色剂充电部件通过摩擦将输送到其上的调色剂充电至选定的极性，从而在调色剂充电部件上形成均匀充电的调色剂薄层。 带电的调色剂颗粒从充电部件上的调色剂层释放到光电导元件上的潜像上。 调色剂充电构件在其表面上具有绝缘构件。 提供了一种第一放电装置，用于在绝缘体上大量同时耗散累积的电荷，其操作用于从未被供应到潜像的充电构件中去除调色剂颗粒。 第二排放装置设置在工位的下游位置，其中第一装置将残留调色剂和调色剂供应给充电部件的工位的上游去除，以便从绝缘体中去除电荷。 即使使用仅由调色剂颗粒组成的单组分型显影剂，许多微电极形成在调色剂充电部件上或其绝缘体上，以获得显着的边缘效果。

公开(公告)号：US4210864A

公开(公告)日：1980-07-01

申请号：US897466

申请日：1978-04-18

申请人： Seiichi Miyakawa ,  Susumu Tatsumi ,  Koji Sakamoto ,  Yoshihiro Ogata

发明人： Seiichi Miyakawa ,  Susumu Tatsumi ,  Koji Sakamoto ,  Yoshihiro Ogata

IPC分类号： G03G15/08 ,  G01R33/00 ,  G01N9/00

CPC分类号： G03G15/0853 ,  Y10S222/01

摘要： A powdered toner mixture comprising a non-magnetic toner component and a ferromagnetic carrier component is caused to flow downwardly through a vertical conduit by gravity. An electromagnetic coil is wound around the conduit and energized with an alternating electric signal. An electrically conductive and magnetic mass is disposed inside the conduit. The permeability of the toner mixture decreases as the toner density, or the ratio of the toner component to the carrier component, increases. The lower the permeability of the toner mixture, the greater the proportion of magnetic flux passing through the mass. The flux passing through the mass induces eddy currents therein which, in combination with hysterisis and skin effect losses, dissipate a portion of the electric signal. The amount of power dissipation is a function of the relative proportion of flux through the mass and thereby the toner density and, when measured, provides a measure of the toner density.

摘要翻译： 使包含非磁性调色剂组分和铁磁载体组分的粉末调色剂混合物通过重力向下流过垂直导管。 电磁线圈缠绕在导管上并用交流电信号通电。 导电和磁性质量块设置在管道内。 调色剂混合物的渗透性随着调色剂浓度或调色剂组分与载体组分的比例增加而降低。 调色剂混合物的渗透性越低，通过该质量的磁通量的比例越大。 通过物质的通量在其中引起涡流，其结合滞后和皮肤效应损失，消散电信号的一部分。 功率消耗量是通过质量的通量的相对比例，从而调色剂浓度的函数，并且当测量时，提供调色剂浓度的量度。

公开(公告)号：US4200391A

公开(公告)日：1980-04-29

申请号：US935121

申请日：1978-08-21

申请人： Koji Sakamoto ,  Susumu Tatsumi ,  Chikara Imai

发明人： Koji Sakamoto ,  Susumu Tatsumi ,  Chikara Imai

IPC分类号： G03G15/00 ,  G03G15/04 ,  G03G15/043 ,  G03G15/06 ,  G03G21/00

CPC分类号： G03G15/5025 ,  G03G15/065

摘要： Prior to optical scanning of an original document (14) for producing an electrostatic image thereof on a photoconductive drum (12), the optical density of the document (14) is sensed and a light image intensity and a developing bias voltage are set in accordance with a sensed minimum or background density of the document (14).

摘要翻译： 在用于在感光鼓（12）上产生静电图像的原始文件（14）进行光学扫描之前，检测原稿（14）的光密度，并根据照相机设置光图像强度和显影偏压 具有感测到的文档（14）的最小或背景密度。

公开(公告)号：US20100046596A1

公开(公告)日：2010-02-25

申请号：US12523485

申请日：2008-01-16

申请人： Junichi Suzuki ,  Takashi Saeki ,  Koji Sakamoto ,  Masanori Kurita

发明人： Junichi Suzuki ,  Takashi Saeki ,  Koji Sakamoto ,  Masanori Kurita

IPC分类号： H04B17/00

CPC分类号： G08B25/10 ,  G08B17/00 ,  G08B25/007

摘要： A radio communication system minimizes power consumption against noises. The system includes a first radio terminal (10A) with a first transmitter (40A) for transmitting a first data indicative of a specific event, and a second radio terminal (40A) with a battery (14B) and a receiver (20B). The first radio terminal (10A) includes a first bit interpolator (32A) which inserts a check bit pattern of “01010101” at a predetermined cycle into one frame of the first data. The second radio terminal (10B) has a second power controller (60B) which intermittently activates the second receiver (20B) at predetermined intervals in order to receive the bit-interpolated data from the first transmitter. A check bit detector (24B) is included in the second radio terminal (10B) to detect the check bit pattern from within the bit interpolated data and to issue a stop signal immediately upon occurrence of that the check bit pattern fails to appear at said predetermined cycle within a predetermined time frame shorter than one frame length of the first data. In response to the stop signal, the power controller of the second radio terminal terminates a current receiving operation.

摘要翻译： 无线电通信系统最小化对噪声的功耗。 该系统包括具有用于发送指示特定事件的第一数据的第一发射机（40A）和具有电池（14B）和接收机（20B）的第二无线电终端（40A）的第一无线电终端（10A）。 第一无线电终端（10A）包括第一位内插器（32A），其将预定周期的校验位模式“01010101”插入到第一数据的一帧中。 第二无线电终端（10B）具有以预定间隔间歇地激活第二接收机（20B）的第二功率控制器（60B），以便从第一发射机接收位插值数据。 检查位检测器（24B）包括在第二无线电终端（10B）中，以从位内插数据内检测校验位模式，并且在发生校验位模式不能出现在所述预定位置时立即发出停止信号 在比第一数据的一帧长度短的预定时间范围内循环。 响应于停止信号，第二无线电终端的功率控制器终止当前接收操作。

公开(公告)号：US07517597B2

公开(公告)日：2009-04-14

申请号：US11012387

申请日：2004-12-14

申请人： Tatsuya Hinoue ,  Hiroyuki Suzuki ,  Tetsuya Kanbe ,  Koji Sakamoto

发明人： Tatsuya Hinoue ,  Hiroyuki Suzuki ,  Tetsuya Kanbe ,  Koji Sakamoto

IPC分类号： G11B5/66

CPC分类号： G11B5/7325 ,  G11B5/656 ,  G11B5/66

摘要： Embodiments of the present invention provide a magnetic recording medium for use in high-reliable magnetic recording apparatus capable of reading/writing information with high density. In one embodiment, a magnetic recording apparatus includes a magnetic recording medium, a driver for driving the medium in a recording direction, a compound type magnetic head having an electromagnetic induction type magnetic head for recording and a spin-valve type magnetic head for reading in combination, a mechanism to move the head relative to the medium, and a read/write signal processing module for the head. The magnetic recording medium has a magnetic layer formed by way of a first underlayer, a second underlayer and a third underlayer on a substrate. The first underlayer comprises an alloy of an amorphous structure, the second underlayer comprises a W element or a W-containing alloy layer, the third underlayer comprises one or more Cr-based alloy layers of a body-centered cubic structure, and the magnetic layer comprises one or more Co-based alloy layers of a hexagonal close-packed structure.

摘要翻译： 本发明的实施例提供一种用于能够以高密度读取/写入信息的高可靠性磁记录装置的磁记录介质。 在一个实施例中，磁记录装置包括磁记录介质，用于在记录方向上驱动介质的驱动器，具有用于记录的电磁感应型磁头的复合型磁头和用于读取的旋转型磁头 组合，相对于介质移动头的机构，以及用于头部的读/写信号处理模块。 磁记录介质具有通过第一底层，第二底层和第三底层在基底上形成的磁性层。 第一底层包括非晶结构的合金，第二底层包括W元素或含W合金层，第三底层包括一个或多个体心立方结构的Cr基合金层，并且磁性层 包括一个或多个六方密堆积结构的Co基合金层。

公开(公告)号：US20080113225A1

公开(公告)日：2008-05-15

申请号：US11983576

申请日：2007-11-09

申请人： Kiwamu Tanahashi ,  Yoshibumi Matsuda ,  Mineaki Kodama ,  Koji Sakamoto ,  Tomoo Yamamoto ,  Joe Inagaki

发明人： Kiwamu Tanahashi ,  Yoshibumi Matsuda ,  Mineaki Kodama ,  Koji Sakamoto ,  Tomoo Yamamoto ,  Joe Inagaki

IPC分类号： G11B5/66 ,  G11B5/84

CPC分类号： G11B5/66 ,  G11B5/65 ,  G11B5/851

摘要： Fluctuation of read/write characteristics during mass production is suppressed for a perpendicular magnetic recording medium having a perpendicular recording layer of a bi-layered structure, in which a first Co—Cr—Pt alloy magnetic layer containing an oxide and a second Co—Cr—Pt magnetic layer are formed successively. According to one embodiment, in a perpendicular magnetic recording medium, an adhesion layer, a soft magnetic underlayer, a seed layer, an intermediate layer, a perpendicular recording layer, a protective layer, and a lubricating layer are successively formed on a substrate. The perpendicular recording layer has a bi-layered structure in which a first Co—Cr—Pt alloy magnetic layer containing an oxide and a second Co—Cr—Pt alloy magnetic layer containing a marker element for measurement of a thickness selected from Mo, Mn, and V are successively formed, and the content of the marker element for measurement of thickness is about 1.5 at % or more and about 5 at % or less.

摘要翻译： 对于具有双层结构的垂直记录层的垂直磁记录介质，抑制了批量生产期间读/写特性的波动，其中含有氧化物的第一Co-Cr-Pt合金磁性层和第二Co-Cr - 磁层依次形成。 根据一个实施例，在垂直磁记录介质中，在基板上依次形成粘合层，软磁性底层，种子层，中间层，垂直记录层，保护层和润滑层。 垂直记录层具有双层结构，其中含有氧化物的第一Co-Cr-Pt合金磁性层和含有用于测量选自Mo，Mn的标记元素的第二Co-Cr-Pt合金磁性层 ，V依次形成，厚度测定用标记要素的含量为1.5at％以上约5at％以下。

公开(公告)号：US20060269793A1

公开(公告)日：2006-11-30

申请号：US11440504

申请日：2006-05-24

申请人： Tatsuya Hinoue ,  Koji Sakamoto ,  Hiroyuki Suzuki ,  Takuya Kojima

发明人： Tatsuya Hinoue ,  Koji Sakamoto ,  Hiroyuki Suzuki ,  Takuya Kojima

IPC分类号： G11B5/66

CPC分类号： G11B5/7325 ,  G11B5/656 ,  G11B5/66

摘要： A longitudinal magnetic recording medium having high medium S/N ratio, no problem for overwriting characteristics, excellent bit error rate and also sufficient thermal stability is provided. In one embodiment, a medium has a substrate, an underlayer film formed above the substrate, a magnetic film formed by stacking a first magnetic layer, a second magnetic layer, a third magnetic layer, a non-magnetic intermediate layer and a fourth magnetic layer over the underlayer film, and a protective film formed over the magnetic film, in which each of the magnetic layers of the magnetic film comprises a cobalt-based alloy containing chromium, the first magnetic layer has the least thickness among all the magnetic layers, the second, the third and the fourth magnetic layer each further contain platinum and boron, Brt of the second magnetic layer is smaller than Brt of the third magnetic layer, Brt of the third magnetic layer is smaller than Brt of the fourth magnetic layer, and the ratio of Brt of the fourth magnetic layer to Brt of the entire magnetic film is within a range from about 40% to about 55%.

摘要翻译： 提供具有高介质S / N比的纵向磁记录介质，不存在重写特性问题，优异的误码率和足够的热稳定性。 在一个实施例中，介质具有衬底，在衬底上形成的下层膜，通过层叠第一磁性层，第二磁性层，第三磁性层，非磁性中间层和第四磁性层形成的磁性膜 以及形成在磁性膜上的保护膜，其中磁性膜的每个磁性层包含含有铬的钴基合金，第一磁性层在所有磁性层中的厚度最小， 第二磁性层的第三磁性层和第四磁性层的每一个都含有铂和硼，第二磁性层的Brt小于第三磁性层的Brt，第三磁性层的Brt小于第四磁性层的Brt， 第四磁性层的Brt与整个磁性膜的Brt的比例在约40％至约55％的范围内。

公开(公告)号：US20050142389A1

公开(公告)日：2005-06-30

申请号：US11012387

申请日：2004-12-14

申请人： Tatsuya Hinoue ,  Hiroyuki Suzuki ,  Tetsuya Kanbe ,  Koji Sakamoto

发明人： Tatsuya Hinoue ,  Hiroyuki Suzuki ,  Tetsuya Kanbe ,  Koji Sakamoto

IPC分类号： G11B5/738 ,  G11B5/64 ,  G11B5/65 ,  G11B5/66 ,  G11B5/73

CPC分类号： G11B5/7325 ,  G11B5/656 ,  G11B5/66

摘要： Embodiments of the present invention provide a magnetic recording medium for use in high-reliable magnetic recording apparatus capable of reading/writing information with high density. In one embodiment, a magnetic recording apparatus includes a magnetic recording medium, a driver for driving the medium in a recording direction, a compound type magnetic head having an electromagnetic induction type magnetic head for recording and a spin-valve type magnetic head for reading in combination, a mechanism to move the head relative to the medium, and a read/write signal processing module for the head. The magnetic recording medium has a magnetic layer formed by way of a first underlayer, a second underlayer and a third underlayer on a substrate. The first underlayer comprises an alloy of an amorphous structure, the second underlayer comprises a W element or a W-containing alloy layer, the third underlayer comprises one or more Cr-based alloy layers of a body-centered cubic structure, and the magnetic layer comprises one or more Co-based alloy layers of a hexagonal close-packed structure.

摘要翻译： 本发明的实施例提供一种用于能够以高密度读取/写入信息的高可靠性磁记录装置的磁记录介质。 在一个实施例中，磁记录装置包括磁记录介质，用于在记录方向上驱动介质的驱动器，具有用于记录的电磁感应型磁头的复合型磁头和用于读取的自旋阀型磁头 组合，相对于介质移动头的机构，以及用于头部的读/写信号处理模块。 磁记录介质具有通过第一底层，第二底层和第三底层在基底上形成的磁性层。 第一底层包括非晶结构的合金，第二底层包括W元素或含W合金层，第三底层包括一个或多个体心立方结构的Cr基合金层，并且磁性层 包括一个或多个六方密堆积结构的Co基合金层。

公开(公告)号：US06703148B2

公开(公告)日：2004-03-09

申请号：US10212737

申请日：2002-08-07

申请人： Yoshibumi Matsuda ,  Yotsuo Yahisa ,  Koji Sakamoto ,  Yuzuru Hosoe ,  Akira Kato

发明人： Yoshibumi Matsuda ,  Yotsuo Yahisa ,  Koji Sakamoto ,  Yuzuru Hosoe ,  Akira Kato

IPC分类号： G11B566

CPC分类号： G11B5/656 ,  G11B5/66 ,  G11B5/732 ,  G11B5/7325 ,  Y10S428/90 ,  Y10T428/12854

摘要： A magnetic recording medium includes an underlayer of a nonmagnetic alloy containing chromium and titanium, a magnetic layer of a Co—Cr—Pt—Ta or Co—Cr—Pt—B alloy, and an intermediate layer of a Co—Cr—Pt alloy and being disposed between the underlayer and the magnetic layer, thereby carrying out high-density information recording and reproducing operation.

摘要翻译： 磁记录介质包括含有铬和钛的非磁性合金的底层，Co-Cr-Pt-Ta或Co-Cr-Pt-B合金的磁性层和Co-Cr-Pt合金的中间层 并且设置在底层和磁性层之间，从而进行高密度信息记录和再现操作。