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1. 发明授权

US10067438B2 Electrostatic latent image developing white developer, image forming method, image forming apparatus, and process cartridge 有权
公开(公告)号：US10067438B2
公开(公告)日：2018-09-04
申请号：US15522306
申请日：2015-09-29
申请人： Yoshihiro Murasawa , Hiroshi Tohmatsu , Hitoshi Iwatsuki , Mariko Takii , Koichi Sakata , Hiroyuki Kishida , Toyoaki Tano , Kenichi Mashiko
发明人： Yoshihiro Murasawa , Hiroshi Tohmatsu , Hitoshi Iwatsuki , Mariko Takii , Koichi Sakata , Hiroyuki Kishida , Toyoaki Tano , Kenichi Mashiko
IPC分类号： G03G9/107 , G03G9/113 , G03G9/09 , G03G9/087
CPC分类号： G03G9/1075 , G03G9/08755 , G03G9/08795 , G03G9/08797 , G03G9/0902 , G03G9/113 , G03G9/1131 , G03G9/1139
摘要： Provided is an electrostatic latent image developing white toner, including: a white toner including at least a binder resin, a white pigment, and a release agent; and a magnetic carrier including at least a core material, and a coating layer coating the core material and made of a coating resin and conductive particles, wherein Ra of the magnetic carrier is in a range of from 0.50 μm to 1.00 μm, and a bulk density of the magnetic carrier is in a range of from 2.08 g/cm3 to 2.24 g/cm3.

2. 发明授权

US10025214B2 Carrier, developing agent, image forming apparatus, image forming method, replenishment toner, and process cartridge 有权
公开(公告)号：US10025214B2
公开(公告)日：2018-07-17
申请号：US15392482
申请日：2016-12-28
申请人： Masashi Nagayama , Mariko Takii , Yoshihiro Murasawa , Haruki Murata , Kei Niwayama , Tohru Suganuma , Koichi Sakata , Saori Yamada , Shinya Nakagawa , Kohsuke Miyazaki
发明人： Masashi Nagayama , Mariko Takii , Yoshihiro Murasawa , Haruki Murata , Kei Niwayama , Tohru Suganuma , Koichi Sakata , Saori Yamada , Shinya Nakagawa , Kohsuke Miyazaki
IPC分类号： G03G9/113 , G03G15/08 , G03G9/083 , G03G15/01
摘要： Carrier for image forming includes a core material particle including a magnetic material and a coating layer disposed on the surface of the core material particle, the coating layer including a resin, carbon black, an inorganic particulate A, and an inorganic particulate B. The carbon black has a concentration gradient along a thickness direction of the coating layer with a concentration from high to low toward a surface of the coating layer while the inorganic particulate A has a concentration gradient along a thickness direction of the coating layer with a concentration from low to high toward the surface of the coating layer. The volume ratio of the carbon black is 0-30 percent at a depth range of 0.0-0.1 μm from the surface of the coating layer. The inorganic particulate A is electroconductive with a powder specific resistance of 200 Ω·cm or less.

3. 发明授权

US5839013A Image forming apparatus having a test mode 失效
标题翻译：具有测试模式的图像形成装置
公开(公告)号：US5839013A
公开(公告)日：1998-11-17
申请号：US266689
申请日：1994-06-28
申请人： Yoshihiro Murasawa , Seiya Nishiwaki
发明人： Yoshihiro Murasawa , Seiya Nishiwaki
IPC分类号： B41J2/44 , G03G15/00 , G03G15/04 , G03G15/043 , G03G21/00
CPC分类号： G03G15/5062 , G03G15/55 , G03G2215/00067
摘要： An image forming apparatus includes an image forming unit for forming an image on a sheet, mode setting unit for setting a test mode for a detection of a cause for a defect in the formed image, a control unit for causing the image forming means to form a plurality of sample images by changing operating conditions of the image forming unit when the test mode is set by the mode setting unit, an input unit for manually inputting a result of comparison of the plurality of sample images and display unit, wherein the control unit determines the particulars of the detection for the cause of the defect in the formed image or contents of the test mode to be subsequently carried out in response to an input of the input unit and, at the same time, causes the display unit to perform a display of the cause for the defect in the formed image or a display of the contents of the test mode to be subsequently carried out.
摘要翻译：图像形成装置包括：图像形成单元，用于在纸张上形成图像;模式设置单元，用于设置用于检测形成的图像中的缺陷的原因的测试模式;控制单元，用于使图像形成装置形成多个样本图像，当通过模式设定单元设定测试模式时，通过改变图像形成单元的操作条件，用于手动输入多个样本图像和显示单元的比较结果的输入单元，其中控制单元根据输入单元的输入，确定形成的图像中的缺陷的原因的检测的细节或随后进行的测试模式的内容，并且同时使显示单元执行显示形成的图像中的缺陷的原因或随后执行的测试模式的内容的显示。

4. 发明授权

US4982239A Image forming apparatus having reciprocating cleaning means 失效
标题翻译：具有往复式清洁装置的图像形成装置
公开(公告)号：US4982239A
公开(公告)日：1991-01-01
申请号：US227765
申请日：1988-08-03
申请人： Nobuyuki Kume , Yoshihiro Murasawa
发明人： Nobuyuki Kume , Yoshihiro Murasawa
IPC分类号： G03G21/00
CPC分类号： G03G21/0011 , G03G21/0058
摘要： An image forming apparatus having a moving image bearing member on which a latent image is formed and developed into a visible image and a reciprocating cleaning device, such as a blade or roller, arranged to press against the surface of the image bearing member and reciprocate in a direction transverse to its movement. A suitable expendient is provided to change the reciprocating motion, e.g. by stopping it, slowing it or increasing its stroke, during latent image formation to minimize vibrations and resultant image blurs while providing good cleaning.
摘要翻译：一种具有运动图像承载部件的图像形成装置，在其上形成潜像并显影成可见图像，以及布置成压靠在图像承载部件的表面上的往复运动的诸如叶片或辊的往复式清洁装置横向于其运动的方向。提供了适当的消费者来改变往复运动，例如，通过停止它，减缓或增加其行程，在潜像形成期间，以减少振动和产生的图像模糊，同时提供良好的清洁。

5. 发明授权

US4719489A Recording apparatus having material feed mode dependent fixing control 失效
标题翻译：记录装置具有依赖于物料供给模式的固定控制
公开(公告)号：US4719489A
公开(公告)日：1988-01-12
申请号：US62430
申请日：1987-06-16
申请人： Masaharu Ohkubo , Yasumasa Ohtsuka , Jun Asai , Yoshihiro Murasawa
发明人： Masaharu Ohkubo , Yasumasa Ohtsuka , Jun Asai , Yoshihiro Murasawa
IPC分类号： G03G15/20 , G03G15/00
CPC分类号： G03G15/2064 , G03G15/2039 , G03G15/2046
摘要： A recording apparatus includes a fixing device for fixing an image to be recorded, on a recording material selectively under a first fixing condition or a second fixing condition; a feeder for feeding the recording material to said fixing means selectively in a first recording material feed mode or a second recording material feed mode which is different from said first recording material feed mode; and a controller, responsive to the change of the recording material feed modes, for bringing said fixing means under the first fixing condition upon the first recording material feeding mode and to a second fixing condition, which is different from the first fixing condition, upon the second recording material feed mode.
摘要翻译：一种记录装置，包括：用于将要记录的图像定影在选择性地在第一定影条件或第二定影条件下的记录材料上的定影装置; 用于以与所述第一记录材料进给模式不同的第一记录材料进给模式或第二记录材料进给模式选择性地将记录材料供给到所述固定装置的进给器; 以及响应于记录材料进给模式的改变的控制器，用于使所述固定装置在第一记录材料进给模式下处于第一定影状态，并且在第一定影条件下与第一定影条件不同的第二固定条件第二记录材料进给模式。

6. 发明授权

US4568176A Method for maintenance of image forming device and member therefor 失效
标题翻译：图像形成装置及其构件的维护方法
公开(公告)号：US4568176A
公开(公告)日：1986-02-04
申请号：US495681
申请日：1983-05-18
申请人： Yoshihiro Murasawa
发明人： Yoshihiro Murasawa
IPC分类号： G03G15/00 , G03G21/00
CPC分类号： G03G15/75 , G03G21/00 , G03G21/0005
摘要： A method for maintenance of an image forming device having an image forming member which forms visible images from electrostatic latent images comprises maintaining the image forming ability of said image forming member by contacting the surface of said image forming member with an ion-exchange material.
摘要翻译：一种用于维护具有从静电潜像形成可见图像的图像形成部件的图像形成装置的方法包括通过使所述图像形成部件的表面与离子交换材料接触来保持所述图像形成部件的图像形成能力。

7. 发明授权

US10915035B2 Carrier for developing electrostatic latent image, two-component developer, developer for replenishment, image forming device, process cartridge, and image forming method 有权
公开(公告)号：US10915035B2
公开(公告)日：2021-02-09
申请号：US16305196
申请日：2017-05-26
申请人： Haruki Murata , Hiroyuki Kishida , Toyoaki Tano , Kenichi Mashiko , Masato Taikoji , Mariko Takii , Yoshihiro Murasawa
发明人： Haruki Murata , Hiroyuki Kishida , Toyoaki Tano , Kenichi Mashiko , Masato Taikoji , Mariko Takii , Yoshihiro Murasawa
IPC分类号： G03G9/00 , G03G9/113 , G03G9/08 , G03G15/08
摘要： A carrier for developing an electrostatic latent image includes a core material particle and a resin layer covering a surface of the core material particle. The resin layer includes a resin and at least one kind of a fine particle. At least one kind of the fine particles includes a chargeable fine particle. The chargeable fine particle has a long diameter of 400 to 900 nm. The chargeable fine particle has a shape factor SF-1 of 160 to 250.

8. 发明授权

US09946177B2 Carrier, two-component developer, image forming apparatus, process cartridge, and image forming method 有权
公开(公告)号：US09946177B2
公开(公告)日：2018-04-17
申请号：US15397522
申请日：2017-01-03
申请人： Yoshihiro Murasawa , Koichi Sakata , Masashi Nagayama , Toyoaki Tano , Hiroyuki Kishida
发明人： Yoshihiro Murasawa , Koichi Sakata , Masashi Nagayama , Toyoaki Tano , Hiroyuki Kishida
IPC分类号： G03G9/113 , G03G9/083 , G03G15/08
CPC分类号： G03G9/0831 , G03G9/1075 , G03G9/1136 , G03G9/1137 , G03G9/1139 , G03G15/08 , G03G15/0808 , G03G2215/0607
摘要： A carrier is provided. The carrier includes a magnetic core particle and a resin layer coating a surface of the magnetic core particle. The resin layer includes a resin, a conductive particle including tungsten tin oxide, and a chargeable filler.

9. 发明授权

US5689790A Image forming apparatus with space particle layer formed on transfer drum 失效
标题翻译：在转印鼓上形成空间粒子层的成像装置
公开(公告)号：US5689790A
公开(公告)日：1997-11-18
申请号：US655287
申请日：1996-05-15
申请人： Takahiro Kubo , Yoshihiro Murasawa , Takashi Hasegawa , Satoshi Tamura
发明人： Takahiro Kubo , Yoshihiro Murasawa , Takashi Hasegawa , Satoshi Tamura
IPC分类号： G03G15/16 , G03G15/23 , G03G21/00
CPC分类号： G03G15/231 , G03G15/166
摘要： The present invention provides an image forming apparatus comprising an image bearing member, and a recording material bearing member for bearing a recording material to convey the recording material to a transfer station where an image is transferred from the image bearing member onto the recording material borne on the recording material bearing member. The recording material bearing member is capable of bearing a plurality of recording materials simultaneously at different positions thereon. The images can be successively transferred onto first and second surfaces of each recording material, and, when images are formed on the second surfaces of the plurality of recording materials, during a time period in which an area of the recording material bearing member with which the first surface of the recording material was previously contacted is passing through at least the transfer position without bearing the recording material, a spacer particle layer is formed between the image bearing member and the area.
摘要翻译：本发明提供了一种图像形成装置，包括图像承载部件和用于承载记录材料的记录材料承载部件，以将记录材料传送到转印站，转印站将图像从图像承载部件转印到承载部件上的记录材料上记录材料承载部件。记录材料承载构件能够在其上的不同位置同时承载多个记录材料。可以将图像依次转印到每个记录材料的第一表面和第二表面上，并且当在多个记录材料的第二表面上形成图像时，在记录材料承载部件的区域预先接触的记录材料的第一表面至少通过转印位置而不承载记录材料，在图像承载部件和区域之间形成间隔颗粒层。

10. 发明授权

US5589926A Color image forming apparatus for forming a color image by transferring color toner to transfer member 失效
标题翻译：彩色图像形成装置，用于通过将彩色调色剂转印到转印部件来形成彩色图像
公开(公告)号：US5589926A
公开(公告)日：1996-12-31
申请号：US538037
申请日：1995-10-02
申请人： Yoshihiro Murasawa , Hisashi Fukushima , Takeshi Menjo , Takashi Hasegawa
发明人： Yoshihiro Murasawa , Hisashi Fukushima , Takeshi Menjo , Takashi Hasegawa
IPC分类号： G03G5/06 , G03G15/01 , G03G15/00
CPC分类号： G03G15/0131 , G03G15/0152 , G03G15/0163 , G03G5/0601 , G03G5/0679 , G03G15/0173 , G03G2215/0187
摘要： An apparatus for forming color toner images on an electrophotographic photosensitive drum and transferring the color toner images onto a transfer drum, is provided with plural color development devices positioned along the rotating direction of the photosensitive drum and opposed thereto, and the above-mentioned transfer drum of a peripheral length is capable, in the rotating direction of the photosensitive drum, of simultaneously supporting two images of a maximum length L to be formed, wherein a relation:d.sub.p =(2.pi.R-2L)/2>d.sub.s .gtoreq.2r+(V.sub.p /V.sub.s).pi.ris substantially satisfied among the peripheral length A of the transfer drum, radius R and peripheral speed V.sub.p of the transfer drum, radius r and peripheral speed V.sub.s of the developing rollers of the development means, distance d.sub.p of two images on the transfer drum, and distance d.sub.s of the developing rollers in the rotating direction of the photosensitive drum.
摘要翻译：一种用于在电子照相感光鼓上形成彩色调色剂图像并将彩色调色剂图像转印到转印鼓上的设备设置有沿着感光鼓的旋转方向定位并与之相对的多个显色装置，并且上述转印鼓周边长度能够在感光鼓的旋转方向上同时支持要形成的最大长度L的两个图像，其中关系：dp =（2πR-2L）/ 2> ds> / = 2r +（Vp / Vs）pi在转印鼓的周长A，转印鼓的半径R和圆周速度Vp，显影装置的显影辊的半径r和圆周速度Vs之间基本上是满足的，距离dp 转印鼓上的两个图像，以及显影辊在感光鼓旋转方向上的距离ds。

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