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1. 发明授权

US5305061A Image forming apparatus having a contact charging device that exhibits uniform charging through reduced residual toner adhesion 失效
标题翻译：具有接触充电装置的图像形成装置，其通过减少残留调色剂附着力而显示出均匀的充电
公开(公告)号：US5305061A
公开(公告)日：1994-04-19
申请号：US808618
申请日：1991-12-17
申请人： Masaaki Takama , Junji Machida , Akihito Ikegawa
发明人： Masaaki Takama , Junji Machida , Akihito Ikegawa
IPC分类号： G03G9/087 , G03G13/08 , G03G15/02 , G03G15/00
CPC分类号： G03G15/0216 , G03G13/08 , G03G9/08711
摘要： An image forming apparatus comprises an image carrier for carrying an electrostatic latent image on its surface, a charging member for charging the image carrier to a predetermined polarity by contacting with the surface of the image carrier, latent image forming means for forming an electrostatic latent image corresponding to image information on the surface of the image carrier charged, and a developing device containing toner including toner particles not less than 90% of which have a shape factor SF-1 expressed by the following equation of not more than 160 and less than 1% of which have a shape factor SF-1 of not less than 170 so as to develop the electrostatic latent image formed on the surface of the image carrier into a toner image:[SF-1]=(L.sup.2 /S).times..pi./4.times.100(in the equation, S is the area indicating the average value of the projected areas of the toner, and L is the maximum length indicating the average value of the maximum lengths at the time of projecting the toner).
摘要翻译：图像形成装置包括用于在其表面上承载静电潜像的图像载体，用于通过与图像载体的表面接触将图像载体充电至预定极性的充电部件，用于形成静电潜像的潜像形成装置对应于充电的图像载体的表面上的图像信息，以及显影装置，其含有不小于90％的调色剂颗粒的调色剂颗粒具有由以下等式表示的形状系数SF-1不大于160且小于1 其中的％具有不小于170的形状因子SF-1，以将形成在图像载体的表面上的静电潜像显影成调色剂图像：（SF-1）=（L2 / S）*（pi ）/ 4 * 100（在该等式中，S是表示调色剂的投影面积的平均值的面积，L是表示投影调色剂时的最大长度的平均值的最大长度）。

2. 发明授权

US06686940B2 Reversible image display medium 有权
标题翻译：可逆图像显示介质
公开(公告)号：US06686940B2
公开(公告)日：2004-02-03
申请号：US09987575
申请日：2001-11-15
申请人： Masahiko Matsuura , Hiroshi Mizuno , Akihito Ikegawa , Masaharu Kanazawa , Keyaki Yogome , Takaji Kurita
发明人： Masahiko Matsuura , Hiroshi Mizuno , Akihito Ikegawa , Masaharu Kanazawa , Keyaki Yogome , Takaji Kurita
IPC分类号： G02B117
CPC分类号： G02F1/167 , G03G15/6597
摘要： A reversible image display medium accommodates a dry developer in each cell formed between two substrates. The developer contains at least two kinds of frictionally chargeable dry developing particles having different chargeable polarities and different optical reflection densities. An image display can be achieved by forming an electrostatic latent image on one of the substrates to drive the developing particles in an electric field based on the electrostatic latent image. The developing particles are set to an average charge quantity of 1.0 &mgr;C/g to 10 &mgr;C/g to achieve good image display. Optionally at least one kind of the developing particles are magnetic developing particles having a coercive force of 50 oersteds to 250 oersteds, and optionally having an optical reflection density of 1.0 or more. An amount of small-size developing particles and/or an addition of a third component may be adjusted and volume average particle size ratio of developing particles may be controlled.
摘要翻译：可逆图像显示介质容纳在两个基板之间形成的每个单元中的干显影剂。显影剂含有至少两种具有不同可充电极性和不同光反射浓度的可摩擦充电的干显影剂。可以通过在其中一个基板上形成静电潜像来基于静电潜像在电场中驱动显影颗粒来实现图像显示。将显影颗粒设定为1.0μC/ g至10μC/ g的平均电荷量以获得良好的图像显示。任选地，至少一种显影颗粒是具有50奥斯特至250奥斯特的矫顽力的磁性显影颗粒，并且可选地具有1.0或更大的光学反射浓度。可以调节一定量的小尺寸显影颗粒和/或添加第三组分，并且可以控制显影颗粒的体积平均粒径比。

3. 发明授权

US06115573A Image forming apparatus and method using a developing device relating to ink viscosity and/or temperature 失效
标题翻译：使用与油墨粘度和/或温度有关的显影装置的图像形成装置和方法
公开(公告)号：US06115573A
公开(公告)日：2000-09-05
申请号：US178495
申请日：1998-10-26
申请人： Tomoo Izumi , Hiroyuki Yamasaki , Satoshi Deishi , Takashi Kondo , Katsuhiko Takeda , Akihito Ikegawa
发明人： Tomoo Izumi , Hiroyuki Yamasaki , Satoshi Deishi , Takashi Kondo , Katsuhiko Takeda , Akihito Ikegawa
IPC分类号： G03G15/10
CPC分类号： G03G15/104
摘要： An image forming apparatus includes an image carrying member having an electrostatic latent image carried on its surface, a release agent application device for applying a release agent to the surface of the image carrying member, an ink developing device for bringing an ink into contact with the image carrying member having the electrostatic latent image formed thereon and the release agent applied thereto, to form an ink image corresponding to the electrostatic latent image, and an ink supplying device for supplying a replenishing ink to the ink developing device when the release agent is mixed with the ink in the ink developing device to control the viscosity of the ink, wherein the replenishing ink differs in viscosity from the ink in the ink developing device. And, the supply of ink is varied as a function of the environmental conditions, such as temperature. Image forming methods are disclosed for using the disclosed image forming apparatuses.
摘要翻译：图像形成装置包括具有在其表面上承载的静电潜像的图像承载构件，用于将图像承载构件的表面上的脱模剂施加的脱模剂施加装置，用于使墨接触的油墨显影装置具有形成在其上的静电潜像的图像承载构件和施加到其上的脱模剂，以形成与静电潜像相对应的油墨图像;以及当混合脱模剂时向油墨显影装置供应补充油墨的供墨装置油墨在油墨显影装置中用于控制油墨的粘度，其中补充油墨的粘度与油墨显影装置中的油墨不同。而且，墨水的供应根据诸如温度的环境条件的函数而变化。公开了使用所公开的图像形成装置的图像形成方法。

4. 发明授权

US5930565A Image forming apparatus 失效
标题翻译：图像形成装置
公开(公告)号：US5930565A
公开(公告)日：1999-07-27
申请号：US61266
申请日：1998-04-17
申请人： Isao Doi , Keiko Momotani , Akihito Ikegawa
发明人： Isao Doi , Keiko Momotani , Akihito Ikegawa
IPC分类号： G03G15/05 , G03G15/00 , G03G15/04
CPC分类号： G03G15/05
摘要： An image forming apparatus includes a first conductive member, a photoelectric transfer layer mounted on the first conductive member, a surface electrode mounted adjacent to the photoelectric transfer layer but away from the first conductive layer, a dielectric layer opposed to the surface electrode, a second conductive member mounted on one surface of the dielectric layer away from the photoelectric transfer layer. A first power supply is provided for applying a voltage V.sub.c between first and second conductive members and a second power supply is provided for applying a voltage V.sub.b between the surface electrode and the second conductive member. The image forming apparatus satisfies following relationship:V.sub.b >(5.5)V.sub.c -(1+5.5/D.sub.p)(312+6.2D.sub.a)whereinV.sub.b : Voltage between surface electrode and second conductive member;V.sub.c : Voltage between first and second conductive members;D.sub.p : Thickness of photoelectric transfer layer; andD.sub.a : Distance between dielectric layer and photoelectric transfer layer.
摘要翻译：图像形成装置包括第一导电构件，安装在第一导电构件上的光电转移层，邻近光电转移层安装但远离第一导电层的表面电极，与表面电极相对的电介质层，第二导电构件导电构件安装在电介质层的远离光电转移层的一个表面上。提供第一电源用于在第一和第二导电构件之间施加电压Vc，并且提供第二电源用于在表面电极和第二导电构件之间施加电压Vb。图像形成装置满足以下关系：Vb>（5.5）Vc-（1 + 5.5 / Dp）（312 + 6.2Da）其中Vb：表面电极和第二导电构件之间的电压; Vc：第一和第二导电构件之间的电压; Dp：光电转移层的厚度; 和Da：电介质层和光电转移层之间的距离。

5. 发明授权

US5860046A Charging method and charging device 失效
标题翻译：充电方式及充电装置
公开(公告)号：US5860046A
公开(公告)日：1999-01-12
申请号：US889822
申请日：1997-07-08
申请人： Akihito Ikegawa , Keiko Momotani , Isao Doi
发明人： Akihito Ikegawa , Keiko Momotani , Isao Doi
IPC分类号： G03G15/02
CPC分类号： G03G15/0233 , Y10S430/102
摘要： The present invention provides a contact charging device, in which a contact member for charging is in contact with a charge receiving member for charging the same while suppressing charging irregularity. The contact member has a surface to be in contact with the charge receiving member. This surface has a volume resistivity in a range from 1.times.10.sup.4 .OMEGA..multidot.cm to 1.times.10.sup.10 .OMEGA..multidot.cm, and has a surface resistivity in a range from 1.times.10.sup.5 .OMEGA./.quadrature. to 1.times.10.sup.10 .OMEGA./.quadrature..Alternatively, the contact member has a surface to be in contact with the charge receiving member. This surface of the contact member has a surface hardness which provides a scratch width of 1 .mu.m or less under scratch hardness test.
摘要翻译：本发明提供一种接触充电装置，其中用于充电的接触构件与用于对其充电的电荷接收构件接触，同时抑制充电不均匀。接触构件具有与电荷接收构件接触的表面。该表面的体积电阻率范围为1×10 4欧米加xcm至1×10 10欧米伽x厘米，并且其表面电阻率范围为1×10 5欧姆/平方厘米至1×10 10欧姆/平方厘米。或者，接触构件具有与电荷接收构件接触的表面。接触构件的该表面具有在刮擦硬度试验下提供1μm或更小的划痕宽度的表面硬度。

6. 发明授权

US5243387A Charging device with a loosely mounted flexible member 失效
标题翻译：充电装置具有松动安装的柔性构件
公开(公告)号：US5243387A
公开(公告)日：1993-09-07
申请号：US810199
申请日：1991-12-19
申请人： Akihito Ikegawa
发明人： Akihito Ikegawa
IPC分类号： G03G15/02
CPC分类号： G03G15/0216
摘要： A charging device for charging a surface of an electrostatic latent image support member used in an image forming apparatus. The apparatus has a rotatably disposed roller confronting the electrostatic latent image support member, a cylindrically formed flexible member having a peripheral length longer than that of the roller and loosely mounted therearound, a guide member for biasing the flexible member against the roller to form a slack of the flexible member at a location confronting the electrostatic latent image support member so that the slack of the flexible member is brought into contact with the electrostatic latent image support member, and a power supply for applying a voltage to the flexible member.
摘要翻译：一种用于对图像形成装置中使用的静电潜像支撑构件的表面进行充电的充电装置。该装置具有与静电潜像支撑构件相对的可旋转地设置的辊，圆柱形的柔性构件，其圆周长度比辊的长度长并且松散地安装在其周围;引导构件，用于将柔性构件偏压抵靠辊以形成松弛所述柔性构件在与所述静电潜像支撑构件相对的位置处，使得所述柔性构件的松弛与所述静电潜像支撑构件接触，以及用于向所述柔性构件施加电压的电源。

7. 发明授权

US5192974A Contract charger 失效
标题翻译：合约充电器
公开(公告)号：US5192974A
公开(公告)日：1993-03-09
申请号：US827337
申请日：1992-01-30
申请人： Akihito Ikegawa , Masaki Asano , Shuji Iino , Izumi Osawa
发明人： Akihito Ikegawa , Masaki Asano , Shuji Iino , Izumi Osawa
IPC分类号： G03G15/02
CPC分类号： G03G15/0233
摘要： A contact charger for charging an image bearing member comprises a support member, a flexible film supported at a side end by the support member and having a free end adapted to contact the surface of the image bearing member, and power device for applying charging voltage to the flexible film.
摘要翻译：用于对图像承载部件充电的接触充电器包括支撑部件，由支撑部件支撑在侧端的柔性膜，并且具有适于接触图像承载部件的表面的自由端和用于将充电电压施加到柔性膜。

8. 发明授权

US5140373A Electrostatic latent image developing apparatus with bristle height adjusting member 失效
标题翻译：具有刷毛高度调节构件的静电潜像显影装置
公开(公告)号：US5140373A
公开(公告)日：1992-08-18
申请号：US408447
申请日：1989-09-06
申请人： Akihito Ikegawa , Hiroshi Mizuno , Hiroshi Murasaki , Kouichi Etou
发明人： Akihito Ikegawa , Hiroshi Mizuno , Hiroshi Murasaki , Kouichi Etou
IPC分类号： G03G15/09
CPC分类号： G03G15/09
摘要： A developing apparatus is accommodated in an image forming apparatus to develop an electrostatic laten image formed on an electrostatic latent image support member, using two-component developer of toner and magnetic carrier. The developing apparatus is provided with a developing sleeve opposed to the electrostatic latent image support member, a magnetic roller disposed inside the developing sleeve to hold the carrier on a peripheral surface of the developing sleeve, a toner hopper accommodating the toner and having an opening at its one end, a toner supply roller rotatably disposed in the opening of the toner hopper and opposed to the developing sleeve, a bristle height adjusting member opposed to the developing sleeve on the downstream side of a developing region and on the upstream side of a toner supply region in a direction of movement of the carrier held on the peripheral surface of the developing sleeve. The developing sleeve confronts the electrostatic latent image support member in the developing region and the toner supply roller in the toner supply region.
摘要翻译：显影装置被容纳在图像形成装置中，以使用调色剂和磁性载体的双组分显影剂显影形成在静电潜像支撑构件上的静电放电图像。显影装置设有与静电潜像支撑构件相对的显影套筒，设置在显影套筒内部的磁性辊，以将载体保持在显影套筒的外周表面上，调色剂漏斗容纳调色剂并且具有开口其一端是可旋转地设置在调色剂料斗的开口中并与显影套筒相对的调色剂供给辊，在显影区域的下游侧和调色剂的上游侧与显影套筒相对的刷毛高度调节构件供给区域沿保持在显影套筒的周面上的托架的运动方向。显影套筒面对显影区域中的静电潜像支撑构件和调色剂供应区域中的调色剂供给辊。

9. 发明授权

US4987452A Developing apparatus provided with a chamber for controlling toner grain diameter 失效
标题翻译：具有用于控制调色剂颗粒直径的室的显影装置
公开(公告)号：US4987452A
公开(公告)日：1991-01-22
申请号：US291120
申请日：1988-12-28
申请人： Shuichi Nakagawa , Hiroshi Murasaki , Akihito Ikegawa , Kouichi Etou , Hiroshi Mizuno
发明人： Shuichi Nakagawa , Hiroshi Murasaki , Akihito Ikegawa , Kouichi Etou , Hiroshi Mizuno
IPC分类号： G03G15/08
CPC分类号： G03G15/0887 , G03G15/0877 , G03G15/0889
摘要： An electrostatic latent image developing apparatus includes an agitating member accommodated in a casing, a roller member accommodated in a front of the casing, and a blade contacting under pressure with an outer circumferential portion of the roller member, which is arranged in the casing. Toner held on the outer circumferential portion of said roller member being supplied to develop an electrostatic latent image on the basis of rotation of the roller member while being regulated by the blade. The apparatus includes a partition member arranged between the roller member and the agitating member at an upper stream side of said blade corresponding to a rotary direction of the roller member. The casing has a space defined among the partition member, the blade, and the outer circumferential portion of the roller member.
摘要翻译：静电潜像显影装置包括容纳在壳体中的搅拌构件，容纳在壳体前部的滚子构件和设置在壳体中的与压力构件的外周部分在压力下接触的叶片。供给保持在所述辊构件的外圆周部分上的调色剂被供给以在由叶片调节的同时基于辊构件的旋转而显影静电潜像。该装置包括一个分隔部件，该分隔部件设置在与滚子部件的旋转方向相对应的所述叶片的上游侧的辊部件和搅拌部件之间。壳体具有限定在分隔构件，叶片和辊构件的外周部之间的空间。

10. 发明授权

US07604706B2 Method for producing resin-molded substrate and method for producing reversible image display medium 有权
公开(公告)号：US07604706B2
公开(公告)日：2009-10-20
申请号：US10109553
申请日：2002-03-29
申请人： Kenji Otokawa , Denji Nota , Akihito Ikegawa , Keyaki Yogome , Takaji Kurita
发明人： Kenji Otokawa , Denji Nota , Akihito Ikegawa , Keyaki Yogome , Takaji Kurita
IPC分类号： G03G7/00 , B29C59/04
CPC分类号： B29C59/04 , G02F1/167 , Y10T156/10 , Y10T156/1023 , Y10T156/1041
摘要： An initial resin substrate is formed by laminating resin layers, and one surface of the initial substrate is heated and pressed by a molding die to mold a projected and dented surface such that substantially no deformation occurs on the resin layer providing a surface opposed to the one surface of the initial substrate. A reversible image display medium is produced by a method comprising the steps of accommodating a dry developer into the concavities and fixing a second substrate to the first substrate using an adhesive. Alternatively a reversible image display medium may be produced by, e.g., a method comprising the steps of providing a first substrate having one surface including concavities, spreading the dry developer over the one surface, removing the excess developer while accommodating the developer into the concavities, and fixing a second substrate to the one surface, or alternatively forming a cell sheet having the cells and accommodating a dry developer therein by use of supersonic oscillation, magnetic force or vacuum suction force.

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