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1. 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。

2. 发明授权

US5810705A Developing roller 失效
标题翻译：开发辊
公开(公告)号：US5810705A
公开(公告)日：1998-09-22
申请号：US704349
申请日：1996-08-28
申请人： Kazuyoshi Mimura , Yoshihisa Tawada , Shigeo Akimoto , Kenji Kobayashi , Yasunori Matsunari , Susumu Fukuda
发明人： Kazuyoshi Mimura , Yoshihisa Tawada , Shigeo Akimoto , Kenji Kobayashi , Yasunori Matsunari , Susumu Fukuda
IPC分类号： G03G15/08 , B23P15/00
CPC分类号： G03G15/0818 , G03G2215/0861
摘要： A developing apparatus of a toner delivery system by contacting a developer roller with an electrostatic latent image-carrying member eliminates a protective layer in the conventional concept from a surface of the developing roller, and provides a covering layer which is formed by adhering particles of toner or a material having electrical characteristics and mechanical characteristics equal to those of the toner on the surface of the developing roller. Those particles are adhered utilizing a surface tackiness of an elastomer layer itself which is a structural element of the developing roller.
摘要翻译：通过使显影辊与静电潜像携带部件接触的调色剂传送系统的显影装置从传统概念中消除了显影辊表面的保护层，并且提供了通过粘附墨粉颗粒形成的覆盖层或具有与显影辊表面上的调色剂相同的电特性和机械特性的材料。使用作为显影辊的结构元件的弹性体层本身的表面粘性来粘附这些颗粒。

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