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    COATING DEVICE
    81.
    发明专利
    COATING DEVICE 失效

    公开(公告)号：JPH05115828A

    公开(公告)日：1993-05-14

    申请号：JP28473991

    申请日：1991-10-30

    Applicant: CANON KK

    Inventor： KOBAYASHI MASATSUNE ,  KASHIWAZAKI AKIO

    IPC: B05C11/08 ,  G03F7/16 ,  H01L21/027

    Abstract: PURPOSE:To uniformly apply a coating material on plural substrates to be coated at one time by a spin coating method by providing a horizontal turn table to the center of which the liquid coating material is dropped and a rotational driving device for the table and constituting the table in such a manner that the plural substrates to be coated can be fixed to the periphery of the center of rotation. CONSTITUTION:For example, 4 sheets of the rectangular parallelepiped-shaped substrates to be coated are disposed on the table 2 and the longitudinal direction thereof is disposed in the direction perpendicular to the center line of the table 2 running the position O of the center 3 of rotation. As a result, the difference between the longest distance OB and the shortest distance OA is minimized in the distance between the central point O of rotation of the table 2 and the arbitrary coating position on the substrates to be coated 1. The distance between the total coating surface of the substrates to be coated 1 and the center of rotation of the table is thereby maintained approximately constant and the entire surface of the coating surfaces is coated with the liquid coating material at nearly a specified circumferential speed. The surface of the table 2 and the coating surfaces of the substrates 1 to be coated are made into approximately the continuous and same plane.

    WATER-SOLUBLE DYE FOR RECORDING FLUID
    90.
    发明专利
    WATER-SOLUBLE DYE FOR RECORDING FLUID 失效

    公开(公告)号：JPS62256877A

    公开(公告)日：1987-11-09

    申请号：JP9797086

    申请日：1986-04-30

    Applicant: MITSUBISHI CHEM IND ,  CANON KK

    Inventor： MIURA KONOE ,  TAKIMOTO HIROSHI ,  KANEKO TOSHIO ,  OOTA NORIYA ,  KOBAYASHI MASATSUNE ,  SAKAEDA TAKESHI

    IPC: C09D11/00 ,  C09D11/16 ,  C09D11/17 ,  C09D11/328 ,  C09D11/38

    Abstract: PURPOSE:To provide the title dye which does not cause precipitation of contaminants on a heating head of an ink jet system utilizing thermal energy, by adjusting the content of iron and silicon. CONSTITUTION:Na2SO4 is added to an aq. soln. of a water-soluble dye (e.g., C.I. Direct Black 17). The resulting precipitate formed by the salting-out is recovered by filtration, washed with a satd. pure water soln. of Na2SO4 and dried. The resulting dry solid is dissolved in a water-soluble org. solvent which is a poor solvent for Na2SO4, but a good solvent for the dye. The soln. is left to stand for a long period of time and filtered. The filtrate is subjected to a re-precipitation treatment with a poor solvent such as acetone, dried, dissolved in pure water and filtered to remove insoluble matters. The soln. is passed through a cation exchange resin and the pH thereof is adjusted. The soln. is then left to stand for a given period of time and filtered to obtains a water-soluble dye for recording fluid in which the content of iron and silicon is adjusted to not higher than 250ppm.

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