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1. 发明授权

US5158852A Electrophotographic development process 失效
标题翻译：电子发展进程
公开(公告)号：US5158852A
公开(公告)日：1992-10-27
申请号：US615947
申请日：1990-11-20
申请人： Yoshio Sakata , Masaharu Iwai , Yasushi Kakehashi
发明人： Yoshio Sakata , Masaharu Iwai , Yasushi Kakehashi
IPC分类号： G03G9/087 , G03G9/10 , G03G9/107 , G03G9/113 , G03G13/09 , G03G15/08 , G03G15/09
CPC分类号： G03G13/09 , G03G9/10 , G03G2215/0609
摘要： An electrophotographic development process is disclosed, in which a visible toner image is fixed after it is transferred onto transfer members, the visible toner image being formed by a development device equipped with a photosensitive substance for forming a latent image and a visible image, a magnetic field source device, arranged in the vicinity of the photosensitive substance, having a movable member for conveying a developer on the surface and forming magnetic brush, a developement container supporting the magnetic field source device and a developer regulating plate, the improvement wherein the developer is a mixture of carriers and toner, and wherein the carrier are at least one of spherical, substantially spherical, and flake-like shapes and a mixture of at least one kinds of carriers ranging from 30 to 150 .mu.m in average grain size. According to the present invention, motor load is reduced by torque drop, a stirring device and its accessory parts are omitted, and as a result, the development device can be made compact and less costly.

2. 发明授权

US5434351A Developing device having developing cylinder with weak magnetic pole and adjacent strong magnetic poles 失效
标题翻译：显影装置具有弱磁极和相邻强磁极的显影圆筒
公开(公告)号：US5434351A
公开(公告)日：1995-07-18
申请号：US186882
申请日：1994-01-26
申请人： Masaharu Iwai , Yasushi Kakehashi
发明人： Masaharu Iwai , Yasushi Kakehashi
IPC分类号： G03G15/09
CPC分类号： G03G15/0921 , G03G15/09
摘要： A developing cylinder used in an electrophotographic developing device is improved in the efficiency of separation of a developer on its surface. A magnetic working force functioning to separate the developer from a sleeve surface is designed on the basis of a magnetic attraction force which results from a vector composite force consisting of a radial magnetic flux density and a tangential magnetic flux density on the sleeve surface and actually controls the behavior of the developer. The magnetic working force acting on a separation zone of weak magnetic flux density is made to act as a magnetic repulsion force functioning to separate the developer from the sleeve surface. The magnetic working force acting on a given area inclusive of a spot proximate to a photoconductor in a development zone is made to act as the magnetic repulsion force functioning to separate the developer from the sleeve surface. A magnet having a weak magnetic flux density pole is disposed in a developing zone and two strong magnetic flux density poles are disposed adjacent the weak magnetic flux density pole.
摘要翻译：用于电子照相显影装置的显影筒提高了其表面上显影剂的分离效率。基于由套筒表面上的径向磁通密度和切向磁通密度组成的矢量复合力产生的磁吸引力来设计用于将显影剂与套筒表面分离的磁力作用力，并且实际控制开发者的行为。作用在具有弱磁通密度的分离区的磁力作用力被用作用于将显影剂与套筒表面分离的磁排斥力。作用在包括显影区域中的光电导体附近的点的给定区域上的磁力作用力被用作使显影剂与套筒表面分离的磁排斥力。具有弱磁通密度极的磁体设置在显影区域中，并且两个强磁通密度磁极设置在弱磁通密度极附近。

3. 发明授权

US08394489B2 Highly thermally conductive resin molded article 有权
标题翻译：高导热性树脂成型品
公开(公告)号：US08394489B2
公开(公告)日：2013-03-12
申请号：US12922686
申请日：2009-02-23
申请人： Kazuaki Matsumoto , Yasushi Kakehashi
发明人： Kazuaki Matsumoto , Yasushi Kakehashi
IPC分类号： B32B27/00 , B29C45/00
CPC分类号： H01L23/295 , B29C45/0013 , B29K2995/0013 , C08L77/00 , C09K5/14 , H01L2924/0002 , H01L2924/00
摘要： An object of the present invention is to industrially easily mold a molded article which is excellent in thermal conductivity, electric insulation property, low density, and an injection moldability and has a thermal conduction anisotropy. The present invention relates to a highly thermally conductive resin molded article having a thermal diffusion anisotropy, the highly thermally conductive resin molded article comprising a resin composition, the resin composition containing at least resin (A) and plate-like hexagonal boron nitride powder (B) in a (A)/(B) volume ratio falling within a range of 90/10 to 30/70, the resin (A) including a thermoplastic polyester resin and/or a thermoplastic polyamide resin, the highly thermally conductive resin molded article having a thickness of not more than 1.3 mm in a part of or all over a three-dimensional shape of the highly thermally conductive resin molded article, a thermal diffusivity measured in a plane direction of the highly thermally conductive resin molded article, being (i) two or more times higher than a thermal diffusivity measured in a thickness direction of the highly thermally conductive resin molded article and (ii) not less than 0.5 mm2/sec.
摘要翻译：本发明的目的是在工业上容易地模制导热性，电绝缘性，低密度和注模成型性优异并且具有导热各向异性的成型体。本发明涉及具有热扩散各向异性的高导热性树脂成形体，高导热性树脂成型体含有树脂组合物，该树脂组合物至少含有树脂（A）和板状六方氮化硼粉末（B ）的（A）/（B）体积比在90/10〜30/70的范围内，包含热塑性聚酯树脂和/或热塑性聚酰胺树脂的树脂（A），高导热性树脂成型品在高导热性树脂成型品的三维形状的一部分或全部具有不大于1.3mm的厚度，在高导热性树脂成型体的平面方向上测量的热扩散率为（i ）比在高导热性树脂成形体的厚度方向测定的热扩散率高两倍以上，（ii）不小于0.5mm 2 /秒。

4. 发明授权

US5319337A Composite molding of resin-bonded magnet for machine parts and process for producing the same 失效
标题翻译：用于机器零件的树脂粘结磁体的复合成型及其制造方法
公开(公告)号：US5319337A
公开(公告)日：1994-06-07
申请号：US863240
申请日：1992-04-03
申请人： Yasunori Matsunari , Toshiaki Ishimaru , Yasushi Kakehashi , Shogo Miki
发明人： Yasunori Matsunari , Toshiaki Ishimaru , Yasushi Kakehashi , Shogo Miki
IPC分类号： G03G15/09 , H01F3/00 , G03B27/04
CPC分类号： G03G15/0921
摘要： A machine part used as a magnet roll for developing and a process for producing the same. The machine part constitutes a member of a developing machine for an electrophotographic process such as a copier and facsimile, and a laser printer as well. The machine part comprises a shaft having a resin-bonded magnet layer provided on the outer periphery thereof. The composite molding of a resin-bonded magnet is produced by molding and establishing a composition for a thermoplastic resin-bonded magnet comprising from 35 to 60 % by volume of a thermoplastic resin and from 40 to 65 % by volume of a hard ferrite powder into a cylinder of uniform thickness on the outer periphery of a shaft, obtained is a thin resin-bonded magnet layer having a surface roughness of 5 .mu.m or less and free of seams which have generated during molding, the thin resin-bonded magnet layer further having provided on the surface a plurality of magnetic poles at a small spacing.
摘要翻译：用作显影用磁体辊的机器部件及其制造方法。机器部件也构成电子照相处理用显影机的构件，例如复印机和传真机，以及激光打印机。机器部分包括在其外周设置有树脂粘结磁体层的轴。树脂粘结磁体的复合成型通过将热塑性树脂粘结磁体的组合物成型并制成，该组合物含有35〜60体积％的热塑性树脂和40〜65体积％的硬质铁氧体粉末，制成获得的轴的外周上具有均匀厚度的圆筒是表面粗糙度为5μm或更小并且在模制期间没有接缝的薄树脂粘合磁体层，薄树脂粘结磁体层进一步在表面上设置有小间隔的多个磁极。

5. 发明申请

US20110027565A1 HIGHLY THERMALLY CONDUCTIVE RESIN MOLDED ARTICLE 有权
标题翻译：高导热树脂模制品
公开(公告)号：US20110027565A1
公开(公告)日：2011-02-03
申请号：US12922686
申请日：2009-02-23
申请人： Kazuaki Matsumoto , Yasushi Kakehashi
发明人： Kazuaki Matsumoto , Yasushi Kakehashi
IPC分类号： B32B27/00 , B29C45/00
CPC分类号： H01L23/295 , B29C45/0013 , B29K2995/0013 , C08L77/00 , C09K5/14 , H01L2924/0002 , H01L2924/00
摘要： An object of the present invention is to industrially easily mold a molded article which is excellent in thermal conductivity, electric insulation property, low density, and an injection moldability and has a thermal conduction anisotropy. The present invention relates to a highly thermally conductive resin molded article having a thermal diffusion anisotropy, the highly thermally conductive resin molded article comprising a resin composition, the resin composition containing at least resin (A) and plate-like hexagonal boron nitride powder (B) in a (A)/(B) volume ratio falling within a range of 90/10 to 30/70, the resin (A) including a thermoplastic polyester resin and/or a thermoplastic polyamide resin, the highly thermally conductive resin molded article having a thickness of not more than 1.3 mm in a part of or all over a three-dimensional shape of the highly thermally conductive resin molded article, a thermal diffusivity measured in a plane direction of the highly thermally conductive resin molded article, being (i) two or more times higher than a thermal diffusivity measured in a thickness direction of the highly thermally conductive resin molded article and (ii) not less than 0.5 mm2/sec.
摘要翻译：本发明的目的是在工业上容易地模制导热性，电绝缘性，低密度和注模成型性优异并且具有导热各向异性的成型体。本发明涉及具有热扩散各向异性的高导热性树脂成形体，高导热性树脂成型体含有树脂组合物，该树脂组合物至少含有树脂（A）和板状六方氮化硼粉末（B ）的（A）/（B）体积比在90/10〜30/70的范围内，包含热塑性聚酯树脂和/或热塑性聚酰胺树脂的树脂（A），高导热性树脂成型品在高导热性树脂成型品的三维形状的一部分或全部具有不大于1.3mm的厚度，在高导热性树脂成型体的平面方向上测量的热扩散率为（i ）比在高导热性树脂成形体的厚度方向测定的热扩散率高两倍以上，（ii）不小于0.5mm 2 /秒。

6. 发明授权

US4509031A Magnetic roller device 失效
标题翻译：磁辊装置
公开(公告)号：US4509031A
公开(公告)日：1985-04-02
申请号：US486888
申请日：1983-04-20
申请人： Yoshio Sakata , Yasushi Kakehashi
发明人： Yoshio Sakata , Yasushi Kakehashi
IPC分类号： G03G15/09 , H01F7/02
CPC分类号： H01F7/02 , G03G15/0921
摘要： At least one pair of adjacent magnets, magnet A of which serves both as an assistant magnet and a main magnet for a necessary magnetic pole is arranged so that it may have a magnetic component in the right angle direction with respect to the magnetized direction of another magnet B. Magnet A itself forms not only the main magnetic pole, but also is adapted to increase the flux density of magnet B in the outer circumference direction.
摘要翻译：至少有一对相邻的磁铁，它们既用作辅助磁体又用作必要磁极的主磁体，其可以相对于另一个的磁化方向在直角方向上具有磁性分量磁体B.磁体A本身不仅形成主磁极，而且还适于增加磁体B在外周方向上的磁通密度。

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