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12918 records (took 0.042 seconds)

    62.
    发明专利
    未知

    公开(公告)号：DE2348041C3

    公开(公告)日：1979-09-20

    申请号：DE2348041

    申请日：1973-09-24

    Applicant: MITA INDUSTRIAL CO. LTD., OSAKA (JAPAN)

    Inventor： WASHIO, TAKAJI, TOYONAKA, OSAKA ,  SASAKI, KOICHI ,  AIZAWA, TATSUO

    IPC: G03G15/08 ,  G03G15/00 ,  G03G15/22 ,  G03G15/30 ,  G03G21/00

    Abstract: An electrostatic photographic copying apparatus comprising a frame member having a transparent plate on which to place an original to be copied, a rotatable photosensitive drum having an electrostatic photographic material on its periphery, an optical system for projecting an image of the original onto the surface of the photographic material, an image-forming zone disposed exteriorly of, and alongside, the periphery of said photo-sensitive drum for forming on said sensitive material an electrostatic latent image corresponding to the image of the original or a developed image corresponding to the latent image, a transfer zone for transferring said image to a transfer paper, and a transfer paper forwarding system for feeding the transfer paper on which the image has been transferred to a discharge end through a desired treating zone.

    64.
    发明专利
    未知

    公开(公告)号：DE2418762C3

    公开(公告)日：1978-08-17

    申请号：DE2418762

    申请日：1974-04-18

    Applicant: MITA INDUSTRIAL CO. LTD., OSAKA (JAPAN)

    Inventor： TAKAHASHI, KENZI ,  KOUCHI, TOSHIHIRO ,  HIRAKATA, OSAKA ,  KAMEZAWA, YASUTOKI, KYOTO ,  AIZAWA, TATSUO, OSAKA

    IPC: G03C1/60 ,  G03C5/18

    Abstract: An improved process for the diazo-type multicolor reproduction which can give multicolored copies excellent in the hue separation and can increase the number of copies obtained from an original treated with a color-forming agent is disclosed. This improved multicolor reproduction process is characterized by the use of a color-forming composition comprising a thermo-volatile or sublimable coupler and at least one hue separation-improving agent selected from polyalkylene oxides and polyalkylene oxide derivatives which are solid under normal conditions and fatty acid derivatives having a melting point of at least 100 DEG C.

    65.
    发明专利
    未知

    公开(公告)号：DE2038242C3

    公开(公告)日：1976-01-08

    申请号：DE2038242

    申请日：1970-07-31

    Applicant: MITA INDUSTRIAL CO. LTD., OSAKA (JAPAN)

    Inventor： NIHYAKUMEN, KOUZI, HIRAKATA, OSAKA ,  YOKOYAMA, TAIZO, OSAKA ,  UEDA, YASUO, KOBE, HYOGO ,  KAMEZAWA, YASUTOKI ,  AIZAWA, TATSUO

    IPC: G03C5/18 ,  G03C1/58

    Abstract: A process for the diazo-type multicolor reproduction which comprises (A) exposing to light a diazo-type photosensitive material having a photosensitive layer containing at least one diazonium salt (c) and a coupler (b) having a substantially lower rate of coupling with the diazonium salt (c) than that of resorcin, said coupler being present in the photosensitive material in an amount of not greater than 1 mole per mole of said diazonium salt (c), and (B) heating a layer of at least one thermovolatile or thermosublimative coupler (a) disposed in a face-to-face contact with said photosensitive material at a predetermined portion, said steps being carried out coincidentally or in the order of (A) to (B) or (B) to (A), and then developing the exposed photosensitivematerial. photosensitive material.

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