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    Toner for developing electrostatic image and process for production thereof
    1.
    发明授权
    Toner for developing electrostatic image and process for production thereof 失效
    用于显影静电图像的调色剂及其生产方法

    公开(公告)号：US5338638A

    公开(公告)日：1994-08-16

    申请号：US797992

    申请日：1991-11-26

    申请人： Kiyoko Tsuchiya ,  Koichi Tomiyama ,  Masayoshi Kato ,  Tsutomu Kukimoto ,  Hiroshi Yusa

    发明人： Kiyoko Tsuchiya ,  Koichi Tomiyama ,  Masayoshi Kato ,  Tsutomu Kukimoto ,  Hiroshi Yusa

    IPC分类号： G03G9/087

    CPC分类号： G03G9/08708 ,  G03G9/08706 ,  G03G9/08793 ,  G03G9/08795

    摘要： A toner for developing an electrostatic image is provided as a pulverized mixture including a binder resin and a colorant. The binder resin is characterized by a molecular weight distribution on a GPC chromatogram of its tetrahydrofuran (THF)-soluble resin content including at least 15% and below 35% of a resin component in a molecular weight region of at most 5000 and at least 3 wt. % of a resin component in a molecular weight region of at least 5.times.10.sup.6 and showing a main peak in a molecular weight region of 5000 to 10.sup.5. The binder resin also has an acid value of 2-100 mg KOH/g. The THF-soluble resin component in the molecular weight region of at least 5.times.10.sup.6 is enriched during a melt-kneading step during the toner production.

    摘要翻译： 提供用于显影静电图像的调色剂作为包括粘合剂树脂和着色剂的粉碎混合物。 粘合剂树脂的特征在于其四氢呋喃（THF）可溶性树脂含量的GPC色谱图中的分子量分布，其包含至少15％且低于35％的分子量区域中的树脂组分的至多5000和至少3 重量 ％的分子量区域中的树脂组分为至少5×10 6，并且在5000至105的分子量范围内显示出主峰。粘合剂树脂的酸值为2-100mg KOH / g。 在调色剂生产过程中，在熔融捏合步骤期间富含至少5×10 6分子量的THF可溶性树脂组分。

    Image forming method and image forming apparatus
    4.
    发明授权
    Image forming method and image forming apparatus 失效
    图像形成方法和图像形成装置

    公开(公告)号：US5215845A

    公开(公告)日：1993-06-01

    申请号：US779808

    申请日：1991-10-21

    申请人： Hiroshi Yusa ,  Kohichi Tomiyama ,  Masayoshi Kato ,  Tsutomu Kukimoto ,  Kiyoko Tsuchiya

    发明人： Hiroshi Yusa ,  Kohichi Tomiyama ,  Masayoshi Kato ,  Tsutomu Kukimoto ,  Kiyoko Tsuchiya

    IPC分类号： G03G9/08 ,  G03G9/083 ,  G03G13/09 ,  G03G13/26 ,  G03G15/08 ,  G03G15/09

    CPC分类号： G03G9/0823 ,  G03G13/09 ,  G03G15/0928 ,  G03G9/0819 ,  G03G9/0821

    摘要： An electrostatic image supporting member which supports an electrostatic image and a toner carrying member for conveying a magnetic toner are disposed in a development section with a specified gap therebetween. The toner carrying member has a base whose surface has an average surface roughness (Ra) of 1.0 to 3.0 .mu.m. A resin coating containing electrically conductive fine particles is formed on the base surface at a density of 4 to 12 g per 1 m.sup.2. The outer layer of the coating has an Ra from 0.8 to 3.0 .mu.m. The toner carrying member carries an electrically insulating magnetic toner containing at least a binder resin and a magnetic component, and satisfying the conditions of a volumetric average particle size of 4.5 to 8 .mu.m, a BET specific surface area of 1.8 to 3.5 m.sup.2 /g, a charge amount of -20 to -35 .mu.c/g, a loose-state apparent density of 0.40 to 0.52 g/cm.sup.3, and a true specific gravity of 1.45 to 1.8. The magnetic toner is formed into a layer having a thickness smaller than the dimension of the gap by a member for regulating the thickness by pressing the toner against the toner carrying member. The magnetic toner is then conveyed to the development section, in which the toner develops the electrostatic image while an AC electric field is applied.

    摘要翻译： 支撑静电图像的静电图像支撑构件和用于输送磁性调色剂的调色剂承载构件以其间具有特定间隙的方式设置在显影区域中。 调色剂承载构件具有表面的平均表面粗糙度（Ra）为1.0〜3.0μm的基材。 含有导电性微粒的树脂被膜以4〜12g / 1m 2的密度形成在基材表面上。 涂层的外层的Ra为0.8〜3.0μm。 调色剂承载构件承载至少含有粘合剂树脂和磁性组分的电绝缘磁性调色剂，并且满足体积平均粒径为4.5至8μm的条件，BET比表面积为1.8至3.5m 2 / g ，电荷量为-20〜-35μC/ g，松散状态表观密度为0.40〜0.52g / cm 3，真比重为1.45〜1.8。 磁性调色剂通过将调色剂压靠在调色剂承载部件上而调节厚度的部件形成为厚度小于间隙尺寸的层。 然后将磁性调色剂输送到显影部分，其中调色剂在施加AC电场时显影静电图像。

    Magnetic toner, magnetic developer, apparatus unit, image forming apparatus and facsimile apparatus
    5.
    发明授权
    Magnetic toner, magnetic developer, apparatus unit, image forming apparatus and facsimile apparatus 失效
    磁性调色剂，磁性显影剂，装置单元，图像形成装置和传真装置

    公开(公告)号：US5424810A

    公开(公告)日：1995-06-13

    申请号：US942840

    申请日：1992-09-10

    申请人： Koichi Tomiyama ,  Hiroyuki Suematsu ,  Masayoshi Kato ,  Hiroshi Yusa ,  Takakuni Kobori

    发明人： Koichi Tomiyama ,  Hiroyuki Suematsu ,  Masayoshi Kato ,  Hiroshi Yusa ,  Takakuni Kobori

    IPC分类号： G03G9/083 ,  G03G15/09

    CPC分类号： G03G9/0834

    摘要： A magnetic toner for electrophotography is composed from a binder resin and a silicon-containing magnetic iron oxide. The magnetic toner has a weigh-average particle size o at most 13.5 .mu.m and has a particle size distribution such that it contains o more than 50 wt, % of magnetic toner particles having a particle size of at least 12.7 .mu.m. The magnetic toner is able to show high developing performances because of richness in fine particles and is also provided with an improved environmental stability because the magnetic iron oxide used therein contains 0.5-4 wt, % silicon (based on total iron content) and has a specific silicon distribution such that the magnetic iron oxide has a total silicon content (A), a silicon content (B) dissolved together with the magnetic iron oxide when the magnetic iron oxide is dissolved up to 20 wt, % dissolution of iron, and a superficial silicon content (C), satisfying relations of B/A=44-84% and C/A=10-55%. The performances are enhanced if the magnetic toner is blended with additives such as inorganic fine powder or resin fine particles.

    摘要翻译： 用于电子照相的磁性调色剂由粘合剂树脂和含硅磁性氧化铁组成。 磁性调色剂具有至多13.5μm的重均粒径，并且具有使其含有超过50重量％的粒径至少为12.7μm的磁性调色剂颗粒的粒度分布。 磁性调色剂由于细颗粒的丰富性而能够显示高显影性能，并且由于其中使用的磁性氧化铁含有0.5-4重量％的硅（基于总铁含量）并具有改善的环境稳定性，并且具有 磁性氧化铁具有总硅含量（A），当磁性氧化铁被溶解时与磁性氧化铁溶解在一起的硅含量（B）高达20重量％，铁溶解度高， 表面硅含量（C），满足B / A = 44-84％和C / A = 10-55％的关系。 如果将磁性调色剂与无机细粉或树脂微粒等添加剂混合，则性能得到提高。

    Optical module and a fabrication process thereof
    10.
    发明授权
    Optical module and a fabrication process thereof 失效
    光学模块及其制造方法

    公开(公告)号：US5555333A

    公开(公告)日：1996-09-10

    申请号：US272734

    申请日：1994-07-11

    申请人： Masayoshi Kato

    发明人： Masayoshi Kato

    IPC分类号： G02B6/12 ,  G02B6/36 ,  G02B6/42

    CPC分类号： G02B6/4214 ,  G02B6/4224 ,  G02B6/423 ,  G02B6/4231 ,  G02B6/4249 ,  G02B2006/12104 ,  G02B6/4212

    摘要： An optical module includes an optical connector element formed of first and second substrates for carrying optical fibers therebetween, and a device substrate carrying photodiodes on an upper major surface thereof in correspondence to the optical fibers, wherein the optical connector element is mounted upon the device substrate such that end surfaces of the first and second substrates face the principal surface of the device substrate and such that polygonal projections provided on the principal surface of the device substrate for positioning engage with corresponding spaces formed between the first and second substrates at the foregoing end surfaces.

    摘要翻译： 光学模块包括由第一和第二基板形成的用于在其间传送光纤的光学连接器元件，以及在其上表面上对应于光纤承载光电二极管的器件基板，其中光学连接器元件安装在器件基板上 使得第一和第二基板的端面朝向装置基板的主表面，并且使得设置在用于定位的装置基板的主表面上的多边形突起与前述端面处的形成在第一和第二基板之间的相应空间接合 。