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9 条记录 (耗时 0.014 秒)

    Method of making electrolytic metal foil and apparatus used therefor
    2.
    发明授权
    Method of making electrolytic metal foil and apparatus used therefor 失效
    制造电解金属箔的方法及其使用的装置

    公开(公告)号：US4778571A

    公开(公告)日：1988-10-18

    申请号：US128816

    申请日：1987-12-04

    申请人： Hiroshi Nakatsugawa

    发明人： Hiroshi Nakatsugawa

    IPC分类号： C25D1/04

    CPC分类号： C25D1/04

    摘要： Disclosed is a method of making electrolytic metal foil, comprising carrying out electrolysis by filling with an electrolytic solution a space defined between a cathode drum capable of rotating on a horizontal axis and an anode provided in face of the surface of the drum, wherein the electrolytic solution is allowed to flow down from the upper part toward the lower part of the space at the flow velocity such that a gas generated in the solution during the electrolysis may virtually flow out downward in its whole quantity. Disclosed also is an apparatus for making electrolytic metal foil, comprising a cathode drum capable of rotating on a horizontal axis, an anode provided in face of the surface of the drum and provided a solution discharging outlet which allow a gas generated during the electrolysis to flow down the space between the both electrodes at the flow velocity such that the gas generated may downward flow out virtually in its whole quantity together with an electrolytic solution for metal electrodeposition.According to this invention, the resulting electrolytic foil can be of dense texture and of excellent physical properties and surface states.

    Copper foil for a printed circuit and a method for the production thereof
    4.
    发明授权
    Copper foil for a printed circuit and a method for the production thereof 失效
    印刷电路用铜箔及其制造方法

    公开(公告)号：US4483906A

    公开(公告)日：1984-11-20

    申请号：US476248

    申请日：1983-03-18

    申请人： Hiroshi Nakatsugawa

    发明人： Hiroshi Nakatsugawa

    IPC分类号： C23F1/00 ,  C25D5/12 ,  C25D7/06 ,  C25D11/38 ,  H05K1/09 ,  H05K3/38 ,  B32B15/01 ,  C25D5/48

    CPC分类号： C25D5/12 ,  C25D11/38 ,  H05K3/384 ,  H05K2201/0355 ,  H05K2203/0723 ,  Y10S428/926 ,  Y10S428/935 ,  Y10T428/12438 ,  Y10T428/12611 ,  Y10T428/1291

    摘要： Copper foil for printed circuits which comprises a copper layer and a nickel layer formed on one or both sides of said copper layer, the surface of said nickel layer having been subjected to a cathodic chromic acid treatment, and a method for producing the same. Said copper foil can be etched easily and completely with ammonium persulfate solution or with a cupric chloride solution, and is free from so called undercutting phenomenon. A further advantage of printed circuits prepared with said copper foil is that the exposed resin substrate is not stained and the copper foil is strongly adhered to the substrate before and after heating.

    摘要翻译： 用于印刷电路的铜箔，其包括在所述铜层的一侧或两侧上形成的铜层和镍层，所述镍层的表面经过阴极铬酸处理及其制造方法。 所述铜箔可以用过硫酸铵溶液或氯化铜溶液容易且完全地蚀刻，并且没有所谓的底切现象。 用所述铜箔制备的印刷电路的另一个优点是，暴露的树脂基板未被染色，并且铜箔在加热之前和之后都牢固地附着在基板上。

    Silver halide color photographic light sensitive material
    5.
    发明授权
    Silver halide color photographic light sensitive material 失效
    卤化银彩色摄影感光材料

    公开(公告)号：US5262290A

    公开(公告)日：1993-11-16

    申请号：US870545

    申请日：1992-04-17

    申请人： Hiroshi Nakatsugawa ,  Takaaki Kojima

    发明人： Hiroshi Nakatsugawa ,  Takaaki Kojima

    IPC分类号： G03C1/035 ,  G03C1/76 ,  G03C1/775 ,  G03C1/79 ,  G03C1/91 ,  G03C7/20 ,  G03C7/30

    CPC分类号： G03C1/775 ,  G03C7/3022

    摘要： A silver halide light-sensitive material is disclosed, which has high light-sensitive speed and improved gradation and sharpness. The light-sensitive material comprises a paper substrate which has polyolefin resin layers on both sides thereof, and a silver halide emulsion layer provided on one of the polyolefin layers. The polyolefin layer on which the silver halide emulsion layer to be provided contains white pigment particles in an amount of not less than 13 weight percent of the polyolefin resin contained in the polyolefin layer, and surface of the polyolefin layer on which the emulsion layer to be provided has a di-dimensional arithmetical mean deviation of the profile, SRa, of not larger than 0.14 .mu.m, and the silver halide emulsion layer comprises at least two kinds of monodispersed silver halide emulsions each having a silver chloride content of not less than 90 mole % and being different from each other in speed.

    Light-sensitive silver halide color photographic material
    7.
    发明授权
    Light-sensitive silver halide color photographic material 失效
    感光卤化银彩色照相材料

    公开(公告)号：US5270158A

    公开(公告)日：1993-12-14

    申请号：US889062

    申请日：1992-05-26

    申请人： Hiroshi Nakatsugawa ,  Takaaki Kojima

    发明人： Hiroshi Nakatsugawa ,  Takaaki Kojima

    IPC分类号： G03C7/20 ,  G03C7/30 ,  G03C7/38 ,  G03C7/392 ,  G03C1/76

    CPC分类号： G03C7/30

    摘要： A light-sensitive silver halide color photographic material is disclosed. The light-sensitive material comprises a support and a silver halide emulsion layer and a non-light-sensitive hydrophilic colloid layer provided on the support. The emulsion layer comprises a mixture of at least two kinds of silver halide emulsions which different from each other in sensitivity. The emulsion layer contains a magenta coupler represented by Formula II and the non-light-sensitive layer contains a compound represented by formula II: ##STR1## wherein Ar is an aryl group; Y is a hydrogen atom or a substituent capable of releasing upon reaction with the oxidation product of a color developing agent; X is a halogen atom, an alkoxy group or an alkyl group; n is an integer of 0 to 4, Xs are the same or different when n is 2 or more; R is a strait chain or branched alkyl group having 1 to 20 carbon atoms, ##STR2## wherein R.sub.1 and R.sub.2 are each a secondary tertiary alkyl group, provided the total number of carbon atoms contained in R.sub.1 and R.sub.2 are 20 or more.

    Insoluble electrode device for treatment of metallic material
    8.
    发明授权
    Insoluble electrode device for treatment of metallic material 失效
    用于处理金属材料的不溶性电极装置

    公开(公告)号：US4964965A

    公开(公告)日：1990-10-23

    申请号：US465516

    申请日：1990-01-16

    申请人： Hiroshi Nakatsugawa

    发明人： Hiroshi Nakatsugawa

    IPC分类号： C25D5/08

    CPC分类号： C25D5/08

    摘要： An insoluble electrode device comprises a box having a plurality of faces, one of which is an open face. An outlet for discharging an electrolyte solution is provided on at least one of the other faces of the box, and a porous electrode plate is mounted on the open face of the box. A liquid flow control panel is mounted behind the porous electrode plate for the interior of the box, whereby a fresh and uniform liquid flow of an electrolyte solution is provided in the space between the electrodes, and whereby a high quality electrolytic surface treatment can be achieved.