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46 条记录 (耗时 0.028 秒)

    Magnetic toner
    44.
    发明授权
    Magnetic toner 失效
    磁性调色剂

    公开(公告)号：US5354637A

    公开(公告)日：1994-10-11

    申请号：US897849

    申请日：1992-06-12

    申请人： Masayoshi Shimamura ,  Toshiaki Nakahara ,  Kuniko Kobayashi ,  Kazuyoshi Hagiwara ,  Yushi Mikuriya ,  Masami Fujimoto

    发明人： Masayoshi Shimamura ,  Toshiaki Nakahara ,  Kuniko Kobayashi ,  Kazuyoshi Hagiwara ,  Yushi Mikuriya ,  Masami Fujimoto

    IPC分类号： C01G49/02 ,  G03G9/083

    CPC分类号： C01G49/02 ,  G03G9/0833 ,  G03G9/0836 ,  C01P2002/32 ,  C01P2002/72 ,  C01P2004/50 ,  C01P2004/62 ,  C01P2006/12 ,  Y10S430/104

    摘要： A magnetic toner is constituted by at least a binder resin and a magnetic iron oxide. The magnetic iron oxide is characterized by having an Fe(II) content of 18.5-24.1 wt. %, and shows a BET specific surface area of S (m.sup.2 /g) and an X-ray diffraction pattern giving a half-value width W (deg.) of a diffraction peak corresponding to 311 plane of the magnetic iron oxide in spinel structure, the values S and W satisfying: 4.5.times.10.sup.-3 S+0.130.ltoreq.W.ltoreq.4.5.times.10.sup.-3 S+0.160, and 4.5.ltoreq.S.ltoreq.11.0. Alternatively, the magnetic iron oxide is characterized by having a number-average particle size D satisfying a relationship with W of: -0.08D+0.180.ltoreq.W.ltoreq.-0.08D+0.212, and 0.10.ltoreq.D.ltoreq.0.45. The relationship between W and S or D indicates a good crystallinity of the magnetic iron oxide which provides the magnetic toner with a stable performance for a long period of time. The magnetic iron oxide can be obtained through a heating treatment at a temperature of 130.degree.-360.degree. C. within a gaseous mixture of hydrogen and nitrogen containing 50 vol. % or less of hydrogen or at a temperature of 150.degree. -450.degree. C. in an inert gas.

    摘要翻译： 磁性调色剂由至少粘合剂树脂和磁性氧化铁构成。 磁性氧化铁的特征在于Fe（II）含量为18.5-24.1重量％。 ％，并且显示S（m 2 / g）的BET比表面积和给出与尖晶石结构中的磁性氧化铁的311平面对应的衍射峰的半值宽度W（度）的X射线衍射图 ，值S和W满足：4.5×10-3S + 0.130×W = 4.5×10-3S + 0.160，4.5≤S≤11.0。 或者，磁性氧化铁的特征在于具有满足与W的关系的数均粒径D：-0.08D + 0.180

    Color filter and method of producing the same
    46.
    发明授权
    Color filter and method of producing the same 失效
    滤色器及其制造方法

    公开(公告)号：US4837098A

    公开(公告)日：1989-06-06

    申请号：US921047

    申请日：1986-09-19

    申请人： Masayoshi Shimamura ,  Tadahiro Furukawa ,  Akiyoshi Murakami ,  Toshio Haga

    发明人： Masayoshi Shimamura ,  Tadahiro Furukawa ,  Akiyoshi Murakami ,  Toshio Haga

    IPC分类号： G02F1/1335

    CPC分类号： G02F1/133516 ,  Y10S359/90

    摘要： A technique related to color filters to be arranged on the light-receiving surface of a color liquid crystal display device, color video camera, and the like. The color filter consists of a substrate (10) and a colored filter layer (12) formed thereon. The colored filter layer (12) comprises, for example, three groups of filter picture elements (14R, 14G, 14B) having spectral characteristics respectively corresponding to red, green and blue. Each group of filter picture elements are made of polyimide resin and dye contained therein. Further, each group of the filter picture elements (R, G, B) are arranged in direct contact with one surface of the substrate (10) without using any intermediate protecting film. The first group of filter picture elements patterned on one surface of the substrate (10) are subjected to heat treatment at a high temperature of about 250.degree. C., for example, to increase their resistance against the solvent. Then, a second coating layer for patterning the second group of filter picture elements is directly formed without using any intermediate protecting film.