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23 条记录 (耗时 0.016 秒)

    Heat sensitive copying sheet
    4.
    发明授权
    Heat sensitive copying sheet 失效
    热敏复印片

    公开(公告)号：US3666525A

    公开(公告)日：1972-05-30

    申请号：US3666525D

    申请日：1970-05-26

    申请人： FUJI PHOTO FILM CO LTD

    发明人： KIMURA SHIRO ,  ISHIGE SADAO ,  KOBAYASHI TERUO

    IPC分类号： B41M5/323 ,  B41M5/333 ,  B41M5/337 ,  B41M5/18

    CPC分类号： B41M5/3375 ,  B41M5/323 ,  B41M5/3333 ,  Y10S428/913 ,  Y10S430/165

    摘要： HEAT SENSITIVE COPYING PAPERS USING A SPIRO COMPOUND HAVING THE FORMULA A

    2-R1,2''-R2-3,3''-SPIROBI(3H-NAPHTHO(2,1-B)PYRAN

    WHEREIN R1 AND R2 EACH IS SELECTED FROM THE GROUP CONSISTING OF A HYDROGEN ATOM, AN ALKYL GROUP HAVING FROM 1 TO 8 CARBON ATOMS, A CARBOXYLIC ACID ESTER, AN ARALKYL GROUP AND A PHENYL GROUP, A SOLID ORGANIC SULFONIC ACID HAVING THE FORMULA

    R-SO3H (B)

    WHEREIN R IS SELECTED FROM THE GROUP CONSISTING OF AN AMINO GROUP, AN N-SUBSTITUTED AMINO ALKYL GROUP HAVING FROM 2 TO 18 CARBON ATOMS, AN UNSUBSTITUTED AMINO ALKYL GROUP HAVING FROM 2 TO 18 CARBON ATOMS, AN ALKYL GROUP HAVING FROM 10 TO 20 CARBON ATOMS, AN ALKOXY GROUP HAVING FROM 10 TO 20 CARBON ATOMS, A CARBOXYLIC ACID SUBSTITUTED ALKYL GROUP, SAID ALKYL GROUP HAVING FROM 6 TO 18 CARBON ATOMS, AND AN AROMATIC RING, AND A THERMOFUSIBLE MATERIAL HAVING A MELTING POINT RANGING FROM 50 TO 180*C. ARE DISCLOSED.

    Optically sensitized silver halide photographic emulsions
    5.
    发明授权
    Optically sensitized silver halide photographic emulsions 失效
    光敏感银离子摄影乳液

    公开(公告)号：US3619197A

    公开(公告)日：1971-11-09

    申请号：US3619197D

    申请日：1969-07-16

    申请人： FUJI PHOTO FILM CO LTD

    发明人： KIMURA SHIRO ,  NAKAZAWA YOSHIYUKI ,  NAKAMURA YASUHARU ,  SATO AKIRA ,  SAWAHARA MASAO ,  YOSHIDA KATSUJI

    IPC分类号： C09B23/04 ,  G03C1/10

    CPC分类号： C09B23/04

    摘要： WHEREIN Z represents a member from the group consisting of a sulfur atom or a selenium atom; A represents a member from the group consisting of a hydrogen atom, a lower alkyl group or a hydroxyl group; B represents a member from the group consisting of a hydrogen atom or a lower alkyl group; R and R'' represent a member from the group consisting of a lower alkyl group or a substituted alkyl group, and at least one of R and R'' represent a member from the group consisting of a sulfoalkyl group or a carboxyalkyl group; X represents an anion; and n represents 0 or 1, n being 0 when the sensitizing dye is an intramolecular salt. A photographic light-sensitive element comprising the above emulsion on a support is also claimed.

    A photographic silver halide emulsion containing a sensitizing dye represented by the formula: