利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

11 条记录 (耗时 0.021 秒)

    Magnetic recording medium
    3.
    发明授权
    Magnetic recording medium 失效
    磁记录介质

    公开(公告)号：US4503120A

    公开(公告)日：1985-03-05

    申请号：US505506

    申请日：1983-06-17

    申请人： Koichi Yamauchi ,  Nobuo Tsuji ,  Yasuyuki Yamada ,  Shinichi Funabashi ,  Masatoshi Kiyama

    发明人： Koichi Yamauchi ,  Nobuo Tsuji ,  Yasuyuki Yamada ,  Shinichi Funabashi ,  Masatoshi Kiyama

    IPC分类号： C08G18/42 ,  C09D5/23 ,  C09D127/00 ,  C09D127/06 ,  C09D175/00 ,  C09D175/04 ,  G11B5/702 ,  G11B5/70

    CPC分类号： C08G18/4202 ,  G11B5/7022 ,  Y10S428/90 ,  Y10T428/265 ,  Y10T428/31551 ,  Y10T428/31565 ,  Y10T428/31786 ,  Y10T428/31935

    摘要： A magnetic recording medium which comprises a non-magnetic support having thereon a magnetic recording layer containing a ferromagnetic fine powder and a binder as main components is disclosed. The magnetic recording layer containing as the binder (1) a vinyl chloride-vinyl acetate-maleic acid copolymer which has a mean polymerization degree of about 300 to about 400 and a maleic acid fraction of about 0.6 to about 1.5 wt %, (2) a polyurethane resin which has a number average molecular weight of 40,000 to 100,000 and is prepared from (i) a mixture of polyneopentyladipate having a mean molecular weight of 500 to 2,500 and polybutyleneadipate having a mean molecular weight of 500 to 2,500 with a mixing ratio of the former to the latter of from 2/8 to 9/1 by weight and (ii) diphenylmethane diisocyanate, and optionally (3) a low molecular weight polyisocyanate compound.

    摘要翻译： 公开了一种磁记录介质，其包括其上具有含有铁磁性细粉末和粘合剂作为主要成分的磁记录层的非磁性载体。 含有粘合剂（1）的氯乙烯 - 乙酸乙烯酯 - 马来酸共聚物的磁记录层，其平均聚合度为约300至约400，马来酸含量为约0.6至约1.5重量％，（2） 数均分子量为40,000〜100,000的聚氨酯树脂，其由（i）平均分子量为500〜2,500的聚己酸己烯酯和平均分子量为500〜2,500的聚己二酸丁二醇酯的混合物与（i） 前者为2/8至9/1重量比，（ii）二苯基甲烷二异氰酸酯和任选的（3）低分子量多异氰酸酯化合物。

    Magnetic recording medium containing ferro magnetic powder, polar group containing resins in a specific ratio and carbon black of a specific size range
    4.
    发明授权
    Magnetic recording medium containing ferro magnetic powder, polar group containing resins in a specific ratio and carbon black of a specific size range 失效
    含有铁磁粉末，特定比例的含极性基团的树脂和特定尺寸范围的炭黑的磁记录介质

    公开(公告)号：US5126202A

    公开(公告)日：1992-06-30

    申请号：US190846

    申请日：1988-05-06

    申请人： Hiroo Inaba ,  Takeshi Kakuta ,  Koichi Yamauchi ,  Akihiro Matsufuji

    发明人： Hiroo Inaba ,  Takeshi Kakuta ,  Koichi Yamauchi ,  Akihiro Matsufuji

    IPC分类号： C09D5/23 ,  C09D127/04 ,  C09D127/06 ,  C09D175/00 ,  C09D175/04 ,  G11B5/702 ,  G11B5/708 ,  G11B5/714

    CPC分类号： G11B5/7023 ,  G11B5/708 ,  G11B5/714 ,  Y10S428/90 ,  Y10T428/2982 ,  Y10T428/31609

    摘要： A magnetic recording medium comprising a nonmagnetic support having provided thereon a magnetic layer comprising a ferromagnetic powder dispersed in a binder, wherein said ferromagnetic powder has a specific surface area of 40 m.sup.2 /g or more as measured by the BET method; said magnetic layer further comprises carbon black having an average particle diameter of from about 20 to 120 m.mu.; and said binder comprises the combination of (1) a vinyl chloride resin containing a phosphate ester group represented by ##STR1## wherein M.sub.1 and M.sub.2, which may be the same or different, each represents Na, K, Li, H, N.sym.R.sub.3, or N.sym.HR.sub.2 wherein R represents an alkyl group or a hydrogen atom, and (2) at least one resin other than said vinyl chloride resin containing at least one of --SO.sub.3 M, --OSO.sub.2 M, --COOM, and ##STR2## wherein M, M.sub.1, and M.sub.2, which may be the same or different, each represents Na, K, Li, H, N.sup.4 .sym. R.sub.3, or N.sup..sym. HR.sub.2 wherein R represents an alkyl group or a hydrogen atom; provided that the weight ratio of said resin other than said vinyl chloride resin to said vinyl chloride resin is from about 0.4 to 2.5.

    摘要翻译： 一种包含非磁性载体的磁记录介质，其上设置有包含分散在粘合剂中的铁磁性粉末的磁性层，其中所述铁磁性粉末通过BET法测量的比表面积为40m 2 / g以上; 所述磁性层还包含平均粒径为约20至120μm的炭黑; 并且所述粘合剂包含（1）含有由下式表示的磷酸酯基的氯乙烯树脂的组合，其中M1和M2可以相同或不同，各自表示Na，K，Li，H，N（+ ）R3或N（+）HR2，其中R表示烷基或氢原子，和（2）至少一种除所述氯乙烯树脂以外的至少一种树脂，其含有-SO 3 M，-OSO 2 M，-COOM， 其中M，M1和M2可以相同或不同，分别表示Na，K，Li，H，N4（+）R3或N（+）HR2，其中R表示烷基或氢原子 ; 所述氯乙烯树脂以外的所述树脂与所述氯乙烯树脂的重量比为约0.4〜2.5。

    Magnetic recording medium
    5.
    发明授权
    Magnetic recording medium 失效
    磁记录介质

    公开(公告)号：US5112680A

    公开(公告)日：1992-05-12

    申请号：US185214

    申请日：1988-04-25

    申请人： Hiroo Inaba ,  Takeshi Kakuta ,  Koichi Yamauchi ,  Akihiro Matsufuji

    发明人： Hiroo Inaba ,  Takeshi Kakuta ,  Koichi Yamauchi ,  Akihiro Matsufuji

    IPC分类号： C09D5/23 ,  C09D127/04 ,  C09D127/06 ,  C09D175/00 ,  C09D175/04 ,  G11B5/702 ,  G11B5/708 ,  G11B5/714

    CPC分类号： G11B5/7085 ,  G11B5/7023 ,  G11B5/714 ,  Y10S428/90 ,  Y10T428/257 ,  Y10T428/30

    摘要： A magnetic recording medium comprising a nonmagnetic support having provided thereon a magnetic layer comprising a ferromagnetic powder dispersed in a binder, wherein said ferromagnetic powder has a specific surface area of 40 m.sup.2 /g or more as measured by the BET method; said magnetic layer further comprises Al.sub.2 O.sub.3 particles having an average particle diameter of from about 0.1 to 0.5 .mu.m; and said binder comprises the combination of (1) a vinyl chloride resin containing a phosphate ester group represented by ##STR1## wherein M.sub.1 and M.sub.2, which may be the same or different, each represents Na, K, Li, H, N.sym.R.sub.3, or N.sym.HR.sub.2 wherein R represents an alkyl group or a hydrogen atom, and (2) at least one resin other than said vinyl chloride resin containing at least one of --SO.sub.3 M, --OSO.sub.2 M, --COOM, and ##STR2## wherein M, M.sub.1, and M.sub.2, which may be the same or different, each represents Na, K, Li, H, N.sym.R.sub.3, or N.sym.HR.sub.2 wherein R represents an alkyl group or a hydrogen atom; provided that the weight ratio of said resin other than said vinyl chloride resin to said vinyl chloride resin is from about 0.4 to 2.5.

    摘要翻译： 一种包含非磁性载体的磁记录介质，其上设置有包含分散在粘合剂中的铁磁性粉末的磁性层，其中所述铁磁性粉末通过BET法测量的比表面积为40m 2 / g以上; 所述磁性层还包含平均粒径为约0.1至0.5μm的Al 2 O 3颗粒; 并且所述粘合剂包含（1）含有由下式表示的磷酸酯基的氯乙烯树脂的组合，其中M1和M2可以相同或不同，各自表示Na，K，Li，H，N（+ ）R3或N（+）HR2，其中R表示烷基或氢原子，和（2）至少一种除了含有-SO 3 M，-OSO 2 M，-COOM和 其中M，M1和M2可以相同或不同，分别表示Na，K，Li，H，N（+）R3或N（+）HR2，其中R表示烷基或氢原子 ; 所述氯乙烯树脂以外的所述树脂与所述氯乙烯树脂的重量比为约0.4〜2.5。

    Image forming device
    7.
    发明授权
    Image forming device 有权
    图像形成装置

    公开(公告)号：US06647228B2

    公开(公告)日：2003-11-11

    申请号：US10051117

    申请日：2002-01-22

    申请人： Koichi Nakamura ,  Koichi Yamauchi ,  Mitsuyoshi Terada ,  Tadasu Taniguchi ,  Hideaki Kadowaki ,  Yoshikazu Harada ,  Hiroshi Tachiki

    发明人： Koichi Nakamura ,  Koichi Yamauchi ,  Mitsuyoshi Terada ,  Tadasu Taniguchi ,  Hideaki Kadowaki ,  Yoshikazu Harada ,  Hiroshi Tachiki

    IPC分类号： G03G2100

    CPC分类号： G03G21/1638 ,  G03G15/0194 ,  G03G2215/00544 ,  G03G2215/0119 ,  G03G2221/1675

    摘要： In an image forming device of the present invention, which is a tandem type, electrophotographic image forming device, a first separating/contacting mechanism mechanically lowers/raises the whole of a transfer frame holding the transfer and transport belt unit in association with the opening/closing of a front door, a second separating/contacting mechanism mechanically lowers/raises the right side of the transfer frame in association with the opening/closing of a right side door, and a third separating/contacting mechanism mechanically lowers/raises the left side of the transfer frame in association with the opening/closing of a left side door. Therefore, the handling of a paper jam can be carried out even when power supply is cut off, and the transfer frame can be separated from the photoconductor drums just by opening a door from a plurality of access directions, on a side opened.

    摘要翻译： 在作为串联型电子照相成像装置的本发明的图像形成装置中，第一分离/接触机构将保持传送和传送带单元的传送框架的整体机械地降低/提高与打开/ 关闭前门，第二分离/接触机构与右侧门的打开/关闭相关联地机械地降低/升高转移框架的右侧，并且第三分离/接触机构机械地降低/升高左侧 与左侧门的打开/关闭相关联的传送框架。 因此，即使切断电源，也可以进行卡纸的处理，只要通过在打开的一侧从多个进入方向开门即可将传送框架与感光鼓分离。

    Magnetic recording medium
    9.
    发明授权
    Magnetic recording medium 失效
    磁记录介质

    公开(公告)号：US5075167A

    公开(公告)日：1991-12-24

    申请号：US406664

    申请日：1989-09-13

    申请人： Koichi Yamauchi ,  Hiroo Inaba ,  Hiroshi Ogawa

    发明人： Koichi Yamauchi ,  Hiroo Inaba ,  Hiroshi Ogawa

    IPC分类号： G11B5/702 ,  C09D5/23 ,  C09D127/04 ,  C09D127/06 ,  C09D175/00 ,  C09D175/04 ,  G11B5/71 ,  G11B5/716

    CPC分类号： G11B5/71 ,  G11B5/716 ,  Y10S428/90 ,  Y10T428/265

    摘要： A magnetic recording medium exhibiting good still durability and good running properties is disclosed, which comprises a non-magnetic support having thereon a first magnetic layer and a second magnetic layer in sequence, the first and second magnetic layers containing ferromagnetic powder and a binder, wherein a fatty acid ester (A) having the following structure is contained in the first magnetic layer and a fatty acid ester (B) having the following structure is contained in the second magnetic layer: ##STR1##

    摘要翻译： 公开了一种表现出良好的耐久性和良好的运行性能的磁记录介质，其包括其上依次具有第一磁性层和第二磁性层的非磁性载体，所述第一和第二磁性层含有铁磁粉末和粘合剂，其中 具有以下结构的脂肪酸酯（A）包含在第一磁性层中，并且具有以下结构的脂肪酸酯（B）包含在第二磁性层中：脂肪酸酯（A） 脂肪酸酯（B）（B）