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31. 发明授权

US06282386B1 Transfer-conveyance device and method capable of controlling transfer bias according to change in environmental condition 有权
标题翻译：能够根据环境条件的变化来控制转印偏压的转印输送装置和方法
公开(公告)号：US06282386B1
公开(公告)日：2001-08-28
申请号：US09505144
申请日：2000-02-15
申请人： Hirokazu Ishii
发明人： Hirokazu Ishii
IPC分类号： G03G1516
CPC分类号： G03G15/1675 , G03G2215/1623
摘要： A transfer-conveyance device for transferring a visible image on an image bearing member in an image forming apparatus onto a transfer sheet and to convey the transfer sheet. The transfer-conveyance device includes a contact member that contacts the image bearing member, a bias applying device to apply a transfer bias to the contact member, a resistance detecting device to detect a resistance of the contact member, and a transfer bias control device to determine an amount of variation in the resistance of the contact member and control the transfer bias. The transfer bias is controlled on the basis of the amount of variation in the resistance of the contact member. A method of controlling a transfer bias in an image forming apparatus includes the steps of applying the transfer bias to a contact member contacting an image bearing member to transfer an image on the image bearing member onto a transfer sheet, determining an amount of variation in a resistance of the transfer member, and controlling the transfer bias on the basis of the amount of variation in the resistance of the contact member.
摘要翻译：一种转印传送装置，用于将图像形成装置中的图像承载部件上的可见图像转印到转印纸上并传送转印纸。转印输送装置包括与图像承载部件接触的接触部件，向接触部件施加转印偏压的偏压施加装置，检测接触部件的电阻的电阻检测装置以及转印偏压控制装置，确定接触构件的电阻的变化量并控制转印偏压。基于接触构件的电阻的变化量来控制转印偏压。一种控制图像形成装置中的转印偏压的方法包括以下步骤：将转印偏压施加到与图像承载部件接触的接触部件，以将图像承载部件上的图像转印到转印纸上，确定转印偏差的量并且基于接触构件的电阻的变化量来控制转印偏压。

32. 发明授权

US5930573A Image forming apparatus and image transferring device thereof having conveying member with selected surface resistivity 失效
标题翻译：图像形成装置及其图像转印装置具有选择的表面电阻率的输送部件
公开(公告)号：US5930573A
公开(公告)日：1999-07-27
申请号：US70605
申请日：1998-05-01
申请人： Kazue Miyamoto , Hirokazu Ishii
发明人： Kazue Miyamoto , Hirokazu Ishii
IPC分类号： G03G15/16
CPC分类号： G03G15/1685 , G03G2215/1623
摘要： A conveying member for conveying a recording medium carrying a toner image transferred thereto from an image carrier, an image transferring device including the conveying member, and an image forming apparatus including the image transferring device are disclosed. The conveying member has its surface resistivity so regulated as to prevent toner from being scattered on a recording medium. Also, the range of the surface resistivity or the relation between the surface resistivities of front and rear layers constituting the conveying members is so selected as to insure the conveyance of the recording medium and obviate defective images ascribable to defective image transfer.
摘要翻译：公开了一种用于传送携带从图像载体传送到其上的调色剂图像的记录介质的传送构件，包括传送构件的图像传送装置和包括图像转印装置的图像形成装置。输送构件的表面电阻率被调节以防止调色剂在记录介质上散射。此外，构成输送构件的表面电阻率的范围或前后层的表面电阻率之间的关系被选择为确保记录介质的传送并且消除由于不良图像转印引起的不良图像。

33. 发明授权

US5822667A Transfer separator 失效
标题翻译：转移分离器
公开(公告)号：US5822667A
公开(公告)日：1998-10-13
申请号：US676524
申请日：1996-07-02
申请人： Yuko Hayama , Hirokazu Ishii , Satoshi Takano , Akio Kutsuwada , Hakuti Mizuishi , Hiroshi Itoh , Itaku Matsuta
发明人： Yuko Hayama , Hirokazu Ishii , Satoshi Takano , Akio Kutsuwada , Hakuti Mizuishi , Hiroshi Itoh , Itaku Matsuta
IPC分类号： G03G15/14 , G03G15/16
CPC分类号： G03G15/1675 , G03G2215/1623
摘要： A transfer separator comprises a transfer belt or other transfer mechanism for carrying and conveying a sheet to apply a toner image from an image carrier onto the sheet and separating the sheet from the image carrier. A bias application electrode applies a transfer bias to the transfer belt, wherein a relation of Lp.gtoreq.aV, and a=1 mm/KV is established when the minimum distance between the image carrier and surface of the bias application electrode is set to Lp (mm) and the maximum voltage applied to the bias application electrode is set to V (KV) . Preferably, the bias application electrode has a coated layer, and the difference in thickness resistance between the coated layer and the transfer belt is within two orders of magnitude. The hardness of the coated layer is preferably equal to or greater than the hardness of the transfer belt.
摘要翻译：转印分离器包括用于承载和输送片材的转印带或其它转印机构，以将来自图像载体的调色剂图像施加到片材上并将片材与图像载体分离。偏置施加电极向转印带施加转印偏压，其中当图像载体和偏置施加电极的表面之间的最小距离被设置为：Lp> / = aV和a = 1mm / KV时，施加到偏压施加电极的最大电压Lp（mm）设定为V（KV）。优选地，偏置施加电极具有涂层，并且涂层和转印带之间的厚度电阻差在两个数量级以内。涂层的硬度优选等于或大于转印带的硬度。

34. 发明授权

US09817341B2 Image forming apparatus 有权
公开(公告)号：US09817341B2
公开(公告)日：2017-11-14
申请号：US15073983
申请日：2016-03-18
申请人： Tatsuya Ohsugi , Kenji Sugiura , Hirokazu Ishii , Hiroyoshi Haga , Naohiro Kumagai , Seiichi Kogure , Takehide Mizutani , Junpei Fujita , Yuuji Wada , Kazuki Yogosawa , Naoto Kochi
发明人： Tatsuya Ohsugi , Kenji Sugiura , Hirokazu Ishii , Hiroyoshi Haga , Naohiro Kumagai , Seiichi Kogure , Takehide Mizutani , Junpei Fujita , Yuuji Wada , Kazuki Yogosawa , Naoto Kochi
IPC分类号： G03G15/20 , G03G15/16
CPC分类号： G03G15/1665 , G03G15/1605 , G03G15/1675 , G03G2215/0129 , G03G2215/1623
摘要： An image forming apparatus includes a plurality of image bearers, a transfer bias member, and a power source. When the transfer bias member transfers a color toner image onto a recording sheet, a second peak value of a peak-to-peak of a transfer bias, which is smaller than a first peak value of the peak-to-peak in an electrostatic force to move toner from the image bearers or an intermediate transfer body to the recording sheet, is zero or has a first polarity to generate the electrostatic force in a transfer direction to move toner from the image bearers or the intermediate transfer body to the recording sheet. When the transfer bias member transfers a monochromatic toner image including only black toner onto the recording sheet, the second peak value is zero or has a second polarity to generate an electrostatic force in an opposite direction to the transfer direction.

35. 发明授权

US09632461B2 Image forming apparatus controlling transfer bias based on temperature and humidity 有权
公开(公告)号：US09632461B2
公开(公告)日：2017-04-25
申请号：US14956707
申请日：2015-12-02
申请人： Kenji Sugiura , Toshitaka Yamaguchi , Hiroyoshi Haga , Hirokazu Ishii , Shinya Tanaka , Takehide Mizutani , Yuuji Wada , Tatsuya Ohsugi , Naohiro Kumagai , Seiichi Kogure , Junpei Fujita , Kazuki Yogosawa
发明人： Kenji Sugiura , Toshitaka Yamaguchi , Hiroyoshi Haga , Hirokazu Ishii , Shinya Tanaka , Takehide Mizutani , Yuuji Wada , Tatsuya Ohsugi , Naohiro Kumagai , Seiichi Kogure , Junpei Fujita , Kazuki Yogosawa
IPC分类号： G03G15/16 , G03G21/20
CPC分类号： G03G15/1665 , G03G15/1675 , G03G21/20
摘要： An image forming apparatus includes an image bearer, a toner image forming device, a nip forming device, a power source, a controller, and a temperature-and-humidity detector. The toner image forming device forms a toner image on the image bearer. The nip forming device contacts the image bearer to form a transfer nip. The power source outputs a transfer bias, in which an alternating current component is superimposed on a direct current component, to transfer the toner image onto a recording medium interposed in the transfer nip. The temperature-and-humidity detector detects a temperature and humidity. The controller controls the power source to output the transfer bias including the direct current component with a smaller absolute value as at least one of the detected temperature and humidity increases.

36. 发明授权

US09395659B2 Image forming apparatus 有权
标题翻译：图像形成装置
公开(公告)号：US09395659B2
公开(公告)日：2016-07-19
申请号：US14259337
申请日：2014-04-23
申请人： Shinya Tanaka , Hirokazu Ishii , Tsutomu Kato , Yasufumi Takahashi , Takehide Mizutani , Osamu Ichihashi , Yuji Kato , Atsushi Nagata , Kazuosa Kuma , Ryo Hasegawa , Haruki Nagata , Naoto Kochi
发明人： Shinya Tanaka , Hirokazu Ishii , Tsutomu Kato , Yasufumi Takahashi , Takehide Mizutani , Osamu Ichihashi , Yuji Kato , Atsushi Nagata , Kazuosa Kuma , Ryo Hasegawa , Haruki Nagata , Naoto Kochi
IPC分类号： G03G15/16
CPC分类号： G03G15/1675 , G03G15/1605
摘要： An image forming apparatus includes an image carrier that carries a toner image; a transfer member that forms a transfer nip between the transfer member and the image carrier; and a power supply capable of outputting a superimposed transfer bias in which an alternating current component is superimposed onto a direct current component. The toner image on the image carrier is transferred onto a recording medium in the transfer nip by the superimposed transfer bias or a direct current bias consisting of the direct current component output by the power supply. The apparatus also includes a controller that controls the power supply so that an output target value of the direct current component when the direct current component rises up is larger than an output target value of the direct current component when the toner image is transferred onto the recording medium.
摘要翻译：图像形成装置包括承载调色剂图像的图像载体; 转印部件，其在转印部件和图像载体之间形成转印辊隙; 以及能够输出叠加在直流分量上的交流分量的叠加转印偏压的电源。图像载体上的调色剂图像通过叠加的转印偏压或由电源输出的直流分量组成的直流偏压转印到转印辊隙中的记录介质上。该装置还包括控制器，其控制电源，使得当直流分量上升时直流分量的输出目标值大于当调色剂图像被转印到记录上时的直流分量的输出目标值中。

37. 发明授权

US09389551B2 Fixing unit and image forming apparatus including same 有权
标题翻译：固定单元和包括其的成像设备
公开(公告)号：US09389551B2
公开(公告)日：2016-07-12
申请号：US13181941
申请日：2011-07-13
申请人： Hirokazu Ishii
发明人： Hirokazu Ishii
IPC分类号： G03G15/20
CPC分类号： G03G15/2028 , G03G15/657 , G03G2215/00675 , G03G2215/2032
摘要： A fixing unit for fixing a toner image includes a fixing device and a guide member. The fixing device includes a fixing roller having a heater inside thereof and a pressing roller disposed opposite the fixing roller. The pressing roller presses against the fixing roller and fixes a toner image formed on a transfer medium. The guide member guides the transfer medium to the fixing device. The guide member includes a metal base member including at least one coating layer.
摘要翻译：用于固定调色剂图像的定影单元包括定影装置和引导构件。固定装置包括一个在其内部具有加热器的定影辊和一个与定影辊相对设置的加压辊。压辊压靠定影辊并固定形成在转印介质上的调色剂图像。引导构件将传送介质引导到定影装置。引导构件包括包括至少一个涂层的金属基底构件。

38. 发明授权

US09277150B2 Image pickup apparatus and camera system capable of improving calculation accuracy of defocus amount 有权
标题翻译：能够提高散焦量的计算精度的摄像装置和摄像机系统
公开(公告)号：US09277150B2
公开(公告)日：2016-03-01
申请号：US13442330
申请日：2012-04-09
申请人： Hirokazu Ishii
发明人： Hirokazu Ishii
IPC分类号： H04N5/369 , H04N5/232 , H04N9/04
CPC分类号： H04N5/3696 , H04N5/23212 , H04N9/045
摘要： An image pickup apparatus includes an image pickup element that includes imaging pixels and focus detection pixels and that performs a photoelectric conversion of an object image, a readout unit that reads a pair of image signals from the focus detection pixels with a predetermined period, a storage unit that stores the pair of image signals read by the readout unit and optical information of the pair of image signals, an addition unit that adds a plurality of signals of time-series continuous frames of the pair of image signals, and a conversion coefficient determination unit that determines a conversion coefficient that converts an image shift amount of a pair of image signals of an addition frame obtained by the addition unit into a defocus amount, and the conversion coefficient determination unit determines the conversion coefficient of the addition frame based on the time-series continuous optical information.
摘要翻译：图像拾取装置包括：图像拾取元件，其包括成像像素和焦点检测像素，并且执行对象图像的光电转换;读取单元，其从预定周期的焦点检测像素读取一对图像信号;存储器存储由读出单元读取的一对图像信号和该对图像信号的光学信息的单元，附加单元，其添加该对图像信号的时间序列连续帧的多个信号，以及转换系数确定确定将由加法单元获得的相加帧的一对图像信号的图像偏移量转换为散焦量的转换系数的单位，并且转换系数确定单元基于时间来确定相加帧的转换系数系列连续光学信息。

39. 发明授权

US08892013B2 Transfer device and image forming apparatus 有权
公开(公告)号：US08892013B2
公开(公告)日：2014-11-18
申请号：US13646898
申请日：2012-10-08
申请人： Ryuuichi Mimbu , Shinya Tanaka , Hirokazu Ishii , Yasunobu Shimizu , Keigo Nakamura , Hiromi Ogiyama , Kenji Sengoku
发明人： Ryuuichi Mimbu , Shinya Tanaka , Hirokazu Ishii , Yasunobu Shimizu , Keigo Nakamura , Hiromi Ogiyama , Kenji Sengoku
IPC分类号： G03G15/20 , G03G21/00 , G03G15/16
摘要： A transfer device comprises a freely rotatable transferring member contacting an image bearing member to form a transfer nip therebetween; a transfer bias applying member to apply a first bias created by superimposing an alternating current component on a direct current component to the transferring member to transfer a toner image borne on the image bearing member to a recording medium in the transfer nip; and an applicator to apply a protective agent to a surface of the transferring member.

40. 发明申请

US20140328604A1 IMAGE FORMING APPARATUS 有权
标题翻译：图像形成装置
公开(公告)号：US20140328604A1
公开(公告)日：2014-11-06
申请号：US14259337
申请日：2014-04-23
申请人： Shinya TANAKA , Hirokazu Ishii , Tsutomu Kato , Yasufumi Takahashi , Takehide Mizutani , Osamu Ichihashi , Yuji Kato , Atsushi Nagata , Kazuosa Kuma , Ryo Hasegawa , Haruki Nagata , Naoto Kochi
发明人： Shinya TANAKA , Hirokazu Ishii , Tsutomu Kato , Yasufumi Takahashi , Takehide Mizutani , Osamu Ichihashi , Yuji Kato , Atsushi Nagata , Kazuosa Kuma , Ryo Hasegawa , Haruki Nagata , Naoto Kochi
IPC分类号： G03G15/16
CPC分类号： G03G15/1675 , G03G15/1605
摘要： An image forming apparatus includes an image carrier that carries a toner image; a transfer member that forms a transfer nip between the transfer member and the image carrier; and a power supply capable of outputting a superimposed transfer bias in which an alternating current component is superimposed onto a direct current component. The toner image on the image carrier is transferred onto a recording medium in the transfer nip by the superimposed transfer bias or a direct current bias consisting of the direct current component output by the power supply. The apparatus also includes a controller that controls the power supply so that an output target value of the direct current component when the direct current component rises up is larger than an output target value of the direct current component when the toner image is transferred onto the recording medium.
摘要翻译：图像形成装置包括承载调色剂图像的图像载体; 转印部件，其在转印部件和图像载体之间形成转印辊隙; 以及能够输出叠加在直流分量上的交流分量的叠加转印偏压的电源。图像载体上的调色剂图像通过叠加的转印偏压或由电源输出的直流分量组成的直流偏压转印到转印辊隙中的记录介质上。该装置还包括控制器，其控制电源，使得当直流分量上升时直流分量的输出目标值大于当调色剂图像被转印到记录上时的直流分量的输出目标值中。

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