专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明授权

US5128229A Electrophotosensitive material and method of manufacturing the same 失效
标题翻译：电致感材料及其制造方法
公开(公告)号：US5128229A
公开(公告)日：1992-07-07
申请号：US585669
申请日：1990-09-20
申请人： Masato Katsukawa , Keizo Kimoto , Mitsuji Tsujita , Satoru Miura
发明人： Masato Katsukawa , Keizo Kimoto , Mitsuji Tsujita , Satoru Miura
IPC分类号： G03G5/05
CPC分类号： G03G5/0564
摘要： The electrophotosensitive material in accordance with the present invention containing a layer which contains polycarbonate as a binding resin and of which glass transition temperature is not lower than 62.degree. C. This layer is excellent in adhesion to the foundation. This layer may be a photosensitive layer containing a m-phenylenediamine compound as a charge transferring material, or a photosensitive layer containing a m-phenylenediamine compound and a perylene compound as a charge generating material. The present invention also provides a photosensitive layer of which the amount of residual tetrahydrofuran is adjusted to a predetermined value or less, thereby to prevent the photosensitive layer from being decreased in sensitivity due to ultraviolet rays or visible ray.

2. 发明授权

US5530524A Electrophotographic apparatus with photosensitive drum requiring multiple rotations for production of a copy image on one sheet and method of operating same 失效
标题翻译：具有感光鼓的电子照相设备，其需要多次旋转以在一张纸上生产复印图像，以及操作相同的方法
公开(公告)号：US5530524A
公开(公告)日：1996-06-25
申请号：US207166
申请日：1994-03-08
申请人： Mitsuji Tsujita , Keizo Kimoto , Ichiro Yamazato , Nariaki Tanaka , Tomoki Tanaka
发明人： Mitsuji Tsujita , Keizo Kimoto , Ichiro Yamazato , Nariaki Tanaka , Tomoki Tanaka
IPC分类号： G03G5/06 , G03G15/00 , G03G15/30 , G03G15/32 , G03G21/08 , G03G21/00
CPC分类号： G03G15/751 , G03G15/04045 , G03G15/307 , G03G15/326 , G03G21/08 , G03G5/0681
摘要： A compact electrophotographic apparatus is attained by decreasing the diameter of the photosensitive drum so that a plurality of rotations of the drum are required to produce a single sheet image. Images of excellent quality, especially with respect to the lack of stepwise density decrease across the image due to multiple drum rotations per image, are achieved by providing for discharge of the photosensitive drum so that the residual potential on the drum is 10% or less of the charged surface potential after discharge on the first rotation of the drum and the increase in the residual potential is not more than 30% after discharge on the last rotation of a sheet making cycle.
摘要翻译：通过减小感光鼓的直径来获得紧凑的电子照相设备，以便需要滚筒的多次旋转以产生单张图像。通过提供感光鼓的放电使得感光鼓的残留电位为10％以下，尤其是对于由于每个图像的多个鼓旋转而导致的图像上逐步密度降低的图像，滚筒的第一次旋转时的放电后的带电表面电位和剩余电位的增加在片材制作循环的最后旋转之后放电后不大于30％。

3. 发明授权

US4882253A Organic laminated photosensitive material of positive charging type 失效
标题翻译：有机层压感光材料为正极型
公开(公告)号：US4882253A
公开(公告)日：1989-11-21
申请号：US225522
申请日：1988-07-28
申请人： Yoshiaki Kato , Masashi Tanaka , Mitsuji Tsujita , Keizo Kimoto , Hirotsugu Nishikawa , Mika Kawaguchi
发明人： Yoshiaki Kato , Masashi Tanaka , Mitsuji Tsujita , Keizo Kimoto , Hirotsugu Nishikawa , Mika Kawaguchi
IPC分类号： G03G5/06 , G03G5/043 , G03G5/047
CPC分类号： G03G5/047
摘要： Disclosed is an organic laminated photosensitive material of the positive charging type comprising an electroconductive substrate, a charge-transporting layer formed on the substrate and a charge-generating and transporting layer formed on the charge-transporting layer. The charge-transporting layer is composed of a binder resin containing a hole-transporting substance, and the charge-generating and transporting layer is composed of a binder resin containing a charge-generating substance and a hole-transporting substance. In this laminated photosensitive material, an excellent sensitiveity is maintained even if the topmost charge-generating layer has a large thickness, and therefore, a high surface saturation charge voltage and an excellent printing resistance can be maintained in addition to an increased sensitivity.

4. 发明授权

US5622798A Electrophotographic method with residual charge elimination 失效
标题翻译：具有残留电荷消除的电子照相方法
公开(公告)号：US5622798A
公开(公告)日：1997-04-22
申请号：US542061
申请日：1995-10-12
申请人： Keizo Kimoto
发明人： Keizo Kimoto
IPC分类号： G03G5/04 , G03G5/06 , G03G21/08
CPC分类号： G03G21/08 , G03G5/06
摘要： The electrophotographic process of this invention is characterized in that a single layer organic photosensitive material having an absorbance, at a maximum absorption wavelength of a visible portion per .mu.m of the thickness of a photosensitive layer, of at least 0.05 is used, and for its charge elimination, a light-emitting diode light which emits a light of a maximum absorption wavelength or a light in its vicinity is irradiated. According to this process, when image formation carried out repeatedly a number of times, a decrease in an early period surface potential can be effectively prevented and a brilliant image can be formed in a high concentration.
摘要翻译：本发明的电子照相方法的特征在于，使用具有至少0.05的感光层厚度的可见部分的最大吸收波长的吸光度的单层有机感光材料，并且对于其照射发射最大吸收波长的光的发光二极管灯或其附近的光的电荷消除。根据这个过程，当重复进行多次成像时，可以有效地防止早期表面电位的降低，并能够以高浓度形成辉煌的图像。

5. 发明授权

US5499486A Process for packing electrophotographic photoreceptor 失效
标题翻译：包装电子照相感光体的方法
公开(公告)号：US5499486A
公开(公告)日：1996-03-19
申请号：US345384
申请日：1994-11-18
申请人： Keizo Kimoto , Yasuyuki Hanatani , Hiroaki Sakai , Tsuneo Oki , Mamoru Uemura
发明人： Keizo Kimoto , Yasuyuki Hanatani , Hiroaki Sakai , Tsuneo Oki , Mamoru Uemura
IPC分类号： G03G21/00 , G03G15/00 , B65B11/48 , B65B19/34 , B65B25/00
CPC分类号： G03G15/75 , G03G15/751
摘要： The present invention provides a process for packing a drum-shaped electrophotographic photoreceptor comprising the steps of folding a wrapping-start edge portion of a light-shielding packing sheet outwardly in a diametrical direction of the photoreceptor across a width of the packing sheet, and wrapping the packing sheet on a circumferential surface of the photoreceptor. The packing process of the present invention enables an electrophotographic photoreceptor, which has a small diameter, or has a soft surface and is susceptible to scratching, to be packed without forming scratches on its surface and decreasing its photosensitivity.
摘要翻译：本发明提供了一种用于包装滚筒形电子照相感光体的方法，包括以下步骤：将遮光包装片的包裹起始边缘部分沿感光体的径向向外折叠在包装片的宽度上，感光体的圆周表面上的包装片。本发明的包装方法使得具有小直径或具有柔软表面并且易于刮擦的电子照相感光体能够在其表面上形成划痕并降低其光敏性而被包装。

6. 发明授权

US06620570B2 Electrophotographic method 失效
标题翻译：电子照相法
公开(公告)号：US06620570B2
公开(公告)日：2003-09-16
申请号：US09773735
申请日：2001-02-02
申请人： Keizo Kimoto , Nobuyuki Kashiwagi , Hiroshi Shiomi
发明人： Keizo Kimoto , Nobuyuki Kashiwagi , Hiroshi Shiomi
IPC分类号： G03G1308
CPC分类号： G03G15/751 , G03G5/06 , G03G5/102 , G03G21/0011
摘要： An electrophotographic method which uses a single-layer organic photosensitive material drum having a single organic photosensitive layer of a thickness of not smaller than 25 &mgr;m formed on an electrically conducting blank tube with a surface roughness Ra of not larger than 0.6 &mgr;m and rotates the photosensitive material drum at a peripheral speed of not smaller than 400 mm/sec, in order to execute an image-forming processing that includes electric charging, exposure to image-bearing light, developing, transfer, cleaning by a blade and removal of electric charge. Though the photosensitive material drum rotates at a high speed and a large frictional force is exerted on the cleaning blade, damage to the blade is effectively suppressed, and image is stably formed for extended periods of time without permitting the cleaning to become defective.
摘要翻译：一种电子照相方法，其使用具有不小于25μm厚度的单一有机感光层的单层有机感光材料鼓，其形成在表面粗糙度Ra不大于0.6μm的导电坯管上，并使感光材料鼓以不小于400mm / sec的圆周速度进行，以便执行包括充电，曝光到图像承载光，显影，转印，刮刀清洁和去除电荷的图像形成处理。虽然感光材料鼓高速旋转并且在清洁刮板上施加较大的摩擦力，但是有效地抑制了对叶片的损伤，并且图像稳定地形成了较长时间，而不会使清洁变得有缺陷。

7. 发明授权

US5943527A Drum unit and earth plate used in the drum unit 失效
标题翻译：鼓单元中使用的鼓单元和接地板
公开(公告)号：US5943527A
公开(公告)日：1999-08-24
申请号：US82549
申请日：1998-05-21
申请人： Nobuyuki Kashiwagi , Keizo Kimoto , Tadashi Sakuma
发明人： Nobuyuki Kashiwagi , Keizo Kimoto , Tadashi Sakuma
IPC分类号： G03G21/04 , G03G15/00 , G03G21/00
CPC分类号： G03G15/751
摘要： A photosensitive drum unit for an electrostatographic printing apparatus is disclosed. The drum unit includes a drum tube formed with at least one opening at one axial end thereof. A flange member is configured to be inserted into the opening in the drum tube. The flange member is provided with a support hole into which a shaft pin is inserted for supporting the drum tube and flange member. An earth plate is formed with projections or claws that extend radially outward from a peripheral edge of the earth plate such that the projections contact with an inner peripheral surface of the drum tube. The earth plate is also formed with a pair of contact pieces extend axially away from the earth plate and also extend toward one another. The contact pieces are spaced apart from one another by a predetermined distance but are also configured to contact and engage a portion of the shaft pin.
摘要翻译：公开了一种用于静电印刷装置的感光鼓单元。鼓单元包括在其一个轴向端部处形成有至少一个开口的鼓管。凸缘构件被构造成插入到鼓管中的开口中。凸缘构件设置有支撑孔，轴销插入该支撑孔中以支撑鼓管和凸缘构件。接地板形成有突起或爪，其从接地板的周边边缘径向向外延伸，使得突起与鼓管的内周表面接触。接地板还形成有一对接触片，其从接地板轴向延伸并且彼此延伸。接触件彼此间隔开预定距离，但也构造成接触并接合轴销的一部分。

8. 发明授权

US4968579A Organic laminated photosensitive material of positive charging type and process for preparation thereof 失效
标题翻译：正电荷型有机层状感光材料及其制备方法
公开(公告)号：US4968579A
公开(公告)日：1990-11-06
申请号：US504104
申请日：1990-04-04
申请人： Keizo Kimoto , Masashi Tanaka , Hirotsugu Nishikawa
发明人： Keizo Kimoto , Masashi Tanaka , Hirotsugu Nishikawa
IPC分类号： G03G5/06 , G03G5/047
CPC分类号： G03G5/047
摘要： Disclosed is an organic laminated photosensitive material of the positive charging type comprising an electroconductive substrate, a charge-transporting layer formed on the substrate and a charge-generating and transporting layer formed on the charge-transporting layer. The charge-transporting layer is composed of a binder resin containing a hole-transporting substance, and the charge-generating and transporting layer is composed of a binder resin containing a hole-transporting substance different from the hole-transporting substance in the charge-transporting layer and a charge-generating substance. The oxidation potential of the hole-transporting substance in the charge-generating and transporting layer is higher than that of the hole-transporting substance in the charge-transporting layer, but the difference of the oxidation potential between the hole-transporting substances of the two layers is smaller than 0.3 eV. In this photosensitive material, injection of holes between the two layers can be easily performed, and the sensitivity can be highly improved.

9. 发明授权

US5987297A Image-forming apparatus including a photosensitive material drum and a rubber blade for cleaning toner off of the drum 失效
标题翻译：图像形成装置包括感光材料鼓和用于清除鼓上的调色剂的橡胶刮刀
公开(公告)号：US5987297A
公开(公告)日：1999-11-16
申请号：US982022
申请日：1997-12-01
申请人： Keizo Kimoto , Tohru Ueno , Hiroaki Iwasaki , Hiroki Morishita
发明人： Keizo Kimoto , Tohru Ueno , Hiroaki Iwasaki , Hiroki Morishita
IPC分类号： G03G21/10 , G03G21/00
CPC分类号： G03G21/0017
摘要： An image-forming apparatus using a rubber blade having a rubber hardness of not smaller than 73.degree. for cleaning the residual toner on the photosensitive material drum, wherein a maximum rotational deviation r (mm) of said photosensitive material drum satisfies the following formula,0.15.gtoreq.r.gtoreq.((a.multidot.sin .theta.).sup.2 +b.sup.2).sup.1/2 -bwhereina: length (mm) one-half of the blade length,b: radius (mm) of the drum,.theta.: angle subtended by a line of the drum surface in parallel with an imaginary center axis of the drum and by a tangential line of contact between the rubber blade and the photosensitive material drum.This apparatus exhibits excellent cleaning performance, permits the photosensitive layer to be evenly scraped over the whole surface of the photosensitive material drum and, hence, makes it possible to stably form image for extended periods of time.
摘要翻译：一种图像形成装置，其使用橡胶硬度不小于73度的橡胶刮刀来清洁感光材料鼓上的残留调色剂，其中所述感光鼓的最大旋转偏差r（mm）满足下式：0.15 > / = r> / =（（axsinθ）2 + b2）+ E，fra 1/2 + EE -b其中a：长度（mm）叶片长度的一半，b：鼓的半径（mm） θ：由滚筒表面的一条线与滚筒的假想中心轴线平行并由橡胶叶片和感光材料滚筒之间的切线相对的角度。该装置表现出优异的清洁性能，使得感光层能够均匀地刮擦感光材料鼓的整个表面，并因此使得可以长时间稳定地形成图像。

10. 发明授权

US5192633A Laminate type photosensitive material for electrophotography 失效
标题翻译：层压型电子照相感光材料
公开(公告)号：US5192633A
公开(公告)日：1993-03-09
申请号：US763150
申请日：1991-09-20
申请人： Hiroaki Iwasaki , Youichi Takesawa , Hiroshi Takemoto , Masashi Tanaka , Keizo Kimoto , Tadashi Sakuma
发明人： Hiroaki Iwasaki , Youichi Takesawa , Hiroshi Takemoto , Masashi Tanaka , Keizo Kimoto , Tadashi Sakuma
IPC分类号： G03G5/047
CPC分类号： G03G5/047 , Y10S430/103
摘要： Disclosed is a laminate type photosensitive material for the electrophotography, which comprises a charge-generating layer and a charge-transporting layer, which are formed on an electroconductive substrate, wherein the charge-transporting layer comprises a first charge-transporting material having an ionization potential smaller than that of a charge-generating material used for the charge-generating layer and a second charge-transporting material having an ionization potential larger than that of the charge-generating material.In this photosensitive material, by using a charge-transporting material having an ionization potential larger than that of the charge-generating material in combination with the charge-transporting material having an ionization potential smaller than that of the charge-generating material, a good residual potential can be maintained without disturbing injection of holes in the charge-transporting layer, the stability of the surface potential at the repeated use is improved and a good charging capacity can be attained.
摘要翻译：公开了一种用于电子照相的层压型感光材料，其包括形成在导电基材上的电荷产生层和电荷输送层，其中电荷输送层包含具有电离电位的第一电荷输送材料小于用于电荷产生层的电荷产生材料和比电荷产生材料电离电位大的第二电荷输送材料。在这种感光材料中，通过使用具有比电荷产生材料更大的电离电位的电荷传输材料与具有小于电荷产生材料的电离电位的电荷输送材料的电荷输送材料的组合，可以保持电位而不扰乱电荷输送层中的空穴注入，重复使用时的表面电位的稳定性提高，并且可以获得良好的充电容量。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式