公开(公告)号：US4586811A

公开(公告)日：1986-05-06

申请号：US484815

申请日：1983-04-14

申请人： Keishi Kubo ,  Takaaki Miyashita ,  Akiyoshi Yasumori

发明人： Keishi Kubo ,  Takaaki Miyashita ,  Akiyoshi Yasumori

IPC分类号： B42D15/10 ,  B44F1/12 ,  C09K11/08 ,  C09K11/77 ,  G03C5/08 ,  G03G15/04 ,  G03G21/00 ,  G03G21/04 ,  G03G15/00

CPC分类号： C09K11/08 ,  C09K11/77 ,  C09K11/7766 ,  G03C5/08 ,  G03G21/046

摘要： A confidential document reproduction prevention method of preventing confidential documents from being reproduced. This method is carried out by applying a particular material as a confidential mark at least to one portion of the surface of a confidential document, which material, when exposed to illumination light, is capable of emitting light with a wavelength different from the wavelength of the illumination light; detecting the light emitted from the material by a detector in a reproduction machine when the document is exposed to the illumination light; and making the reproduction machine inoperative, upon detection of the light emitted from the material.

摘要翻译： 一种防止机密文件被再现的机密文件再现预防方法。 该方法通过将特定材料作为机密标记应用至机密文件的表面的至少一部分来进行，该材料在暴露于照明光时能够发射波长不同于波长的波长的光 照明灯; 当所述文件暴露于所述照明光时，通过再现机器中的检测器检测从所述材料发射的光; 并且在检测到从材料发射的光时使再现机器不工作。

公开(公告)号：US4306014A

公开(公告)日：1981-12-15

申请号：US135747

申请日：1980-03-31

申请人： Makoto Kunikane ,  Akiyoshi Yasumori ,  Kiyoshi Taniguchi ,  Tetu Yamamuro

发明人： Makoto Kunikane ,  Akiyoshi Yasumori ,  Kiyoshi Taniguchi ,  Tetu Yamamuro

IPC分类号： G03C1/735 ,  G03C1/67 ,  G03C1/73 ,  G03C1/52

CPC分类号： G03C1/67 ,  Y10S430/137

摘要： A photo-sensitive and heat-sensitive composition consisting essentially of a leuco-pigment; a hydrogen donator; a photo-reductant which, when exposed to a visible light, produces a reducing agent by the action of said hydrogen donator coexisting therewith; a photooxidant which, when exposed to an ultraviolet ray, causes said leuco-pigment coexisting therewith to generate color and simultaneously, when reacted with said reducing agent, is deprived of its own oxidizing ability; and a cobalt complex which reacts with the reducing agent in amplifying manner to thereby suppress the reaction of a color-forming system, and a recording element using the same.

摘要翻译： 基本上由无色素组成的感光和热敏组合物; 氢供体; 一种光还原剂，当暴露于可见光时，通过与其共存的所述氢供体的作用产生还原剂; 一种光氧化剂，当暴露于紫外线时，使与其共存的无色颜料产生颜色，同时当与所述还原剂反应时，其被剥夺自身的氧化能力; 以及与还原剂以放大方式反应从而抑制着色系统的反应的钴络合物和使用其的记录元件。