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31. 发明专利

JPH03216642A SILVER HALIDE PHOTOGRAPHIC SENSITIVE MATERIAL 失效
公开(公告)号：JPH03216642A
公开(公告)日：1991-09-24
申请号：JP1233390
申请日：1990-01-22
申请人： FUJI PHOTO FILM CO LTD
发明人： DEGUCHI HISAYASU , KURAKI YASUO , ONO SHIGERU , YONEYAMA SHOZO
IPC分类号： G03C1/40 , G03C1/83
摘要： PURPOSE:To prevent harmful coloring from remaining after processing by incorporating a specified dye and specified dispersed solid fine particles into at least one hydrophilic colloidal layer. CONSTITUTION:A dye represented by formula I and dispersed solid fine particles mixed with a surfactant practically insoluble in water at pH =8 are incorporated into at least one hydrophilic colloidal layer. In the formula I, D is the structure moiety of a light absorbing dyestuff, A is an arom. ring directly or indirectly bonded to D, X is a substituent at a position of the arom. ring of A or D and has an ionizable proton, y is 0-4, D has the arom. ring in the case y is 0 and n is 1-7. Decoloring can easily be performed and the photographic characteristics of a photographic emulsion can be prevented from being adversely affected.

32. 发明专利

JPH03163435A SILVER HALIDE PHOTOGRAPHIC SENSITIVE MATERIAL 失效
公开(公告)号：JPH03163435A
公开(公告)日：1991-07-15
申请号：JP30383689
申请日：1989-11-21
申请人： FUJI PHOTO FILM CO LTD
发明人： HASHIMOTO NARIKAZU , DEGUCHI HISAYASU , KOJIMA TETSUO , MIYAZAKI HIDEO
IPC分类号： G03C7/00 , G03C1/035 , G03C1/06 , G03C7/392
摘要： PURPOSE:To enhance interimage effect and to improve sharpness and graininess by incorporating at least one kind of specified compd. into a hydrophilic colloidal layer other than an auxiliary layer and a silver halide emulsion having specified performance into the auxiliary layer. CONSTITUTION:When at least one photosensitive silver halide emulsion layer is formed on a substrate and one or more auxiliary layers are further formed on the outside of the emulsion layer positioned farthest from the substrate to obtain a photographic sensitive material, at least one kind of compd. represented by formula I is incorporated into at least one hydrophilic colloidal layer other than the auxiliary layers and a practically nonphotosensitive silver halide emulsion or a silver halide emulsion contg. internally fogged or surface fogged particles is incorporated into at least one of the auxiliary layers. In the formula I, R is straight chain or branched alkylene, alkenylene, aralkylene or arylene, Z is amino, ammonium or a hetero ring, X is H, an alkali metal atom, ammonium or a precursor convertible into H by alkali and n is 1 but n may be 0 when Z is a hetero ring and bonds to the oxadiazole ring. The compd. represented by the formula I extremely enhances interimage effect and the emulsion prevents a change of edge effect during development and can improve sharpness and graininess.

33. 发明专利

JPH03145639A DIRECT POSITIVE PHOTOGRAPHIC SENSITIVE MATERIAL 失效
公开(公告)号：JPH03145639A
公开(公告)日：1991-06-20
申请号：JP28515889
申请日：1989-11-01
申请人： FUJI PHOTO FILM CO LTD
发明人： DEGUCHI HISAYASU
IPC分类号： G03C1/035 , G03C1/485
摘要： PURPOSE:To obtain the high max. image density (Dmax.) without increasing the min. image density (Dmin) by consisting internal latent image type silver halide particles of a silver chlorobromide, silver bromide or silver chloroiodobromide contg. >=90 mol.% silver bromide and forming 20 to 80% of the total surface area of the particles of (100) face. CONSTITUTION:The internal latent image type silver halide particles consist of the silver chlorobromide, silver bromide or silver chloroiodobromide contg. >=90 mol.% silver bromide and 20 to 80% of the total surface area of the particles consists of the (100) face. The silver bromide content of the internal latent image type silver halide particles is preferably >=93 mol.% and more particularly preferably >=95 mol.%. And 25 to 75% of the total surface area of the internal latent image type silver haldie particles is preferably the (100) face, more preferably 30 to 70% is the (100) face. The high Dmax is obtd. without increasing the Dmin in this way and the high sensitivity is obtd.

34. 发明专利

JPH0338638A DIRECT POSITIVE COLOR PHOTOGRAPHIC SENSITIVE MATERIAL 失效
公开(公告)号：JPH0338638A
公开(公告)日：1991-02-19
申请号：JP17349989
申请日：1989-07-05
申请人： FUJI PHOTO FILM CO LTD
发明人： DEGUCHI HISAYASU , KOBAYASHI HIDETOSHI
IPC分类号： G03C7/36 , G03C1/035 , G03C1/485 , G03C7/38
摘要： PURPOSE:To provide a sensitive material not causing changes of max. density and min. density due to a change of the pH of a color developing soln. by using a specified yellow coupler and a specified pyrazoloazole magenta coupler in combination in a direct positive color photographic sensitive material contg. unfogged internal latent image type silver halide particles. CONSTITUTION:At least one kind of compd. represented by general formula I and at least one kind of compd. represented by general formula M-II are incorporated as photosensitive materials into a direct positive color photographic sensitive material. The compd. represented by the formula I is typically a homo- or copolymer of an addition-polymerizable ethylenic unsatd. compd. having a residue of a yellow dyestuff forming coupler. The compd. represented by the formula M-II is known as a pyrazoloazole coupler. The occurrence of a re-reversal negative image is inhibited by incorporating Mn, Cu, Zn, Cd, Pd, Bi or a group VIII metal of the periodic table into unfogged internal latent image type silver halide particles in the sensitive material.

35. 发明专利

JPH02272540A COLOR REVERSAL IMAGE FORMING METHOD 失效
公开(公告)号：JPH02272540A
公开(公告)日：1990-11-07
申请号：JP9466589
申请日：1989-04-14
申请人： FUJI PHOTO FILM CO LTD
发明人： ISHIMARU SHINGO , DEGUCHI HISAYASU , SAKAGAMI MEGUMI
IPC分类号： G03C7/20 , G03C1/06 , G03C5/50 , G03C7/00 , G03C7/305
摘要： PURPOSE:To obtain color reversal images improved in color reproducibility by providing only the non-photosensitive hydrophilic colloidal layer between an emulsion layer which is so spectrally sensitized as to exist between the centroid sensitivity wavelengths of the respective spectral sensitivity distributions of a blue sensitive emulsion layer and a green sensitive emulsion layer and a red sensitive emulsion layer. CONSTITUTION:The color photosensitive material has the emulsion layer (ICL) contg. the photosensitive silver halide particles which contain the compd. to release a development restrainer in a black and white development with substantially no contribution made to the formation of color forming dyestuff and are so spectrally sensitized as to position the centroid sensitivity wavelength of the spectral sensitivity distribution between the centroid sensitivity wavelengths of the respective spectral sensitivity distributions of the blue sensitive emulsion layer and the green sensitive emulsion layer. Only the non-photosensitive hydrophilic colloidal layer is, thereupon, provided between this emulsion layer and the red sensitive emulsion layer. Further, the emulsion particles are so spectrally sensitized as to position the centroid sensitivity wavelength of the spectral sensitivity distribution of the ICL between the centroid sensitivity wavelength of the respective spectral sensitivity distributions of the blue sensitive emulsion layer and the green sensitive emulsion layer. The improved color reproducibility is obtd. in this way.

36. 发明专利

JPH02244041A SILVER HALIDE PHOTOGRAPHIC SENSITIVE MATERIAL 失效
公开(公告)号：JPH02244041A
公开(公告)日：1990-09-28
申请号：JP6471589
申请日：1989-03-16
申请人： FUJI PHOTO FILM CO LTD
发明人： HIRANO SHIGEO , DEGUCHI HISAYASU
IPC分类号： G03C1/06 , G03C1/295 , G03C7/305
摘要： PURPOSE:To improve the sensitivity and aging stability of a sensitive material and to increase max. image density by incorporating a specified compd. into the sensitive material. CONSTITUTION:At least one kind of compd. represented by formula I is incorporated into a sensitive material. In the formula I, A is a group which releases (L1)v-Q by a reaction with the oxidized product of a developing agent L1 is a group which release Q after released from A, Q is a group obtd. by removing an arbitrary hydrogen radical from a development accelerator represented by formula II or III and v is 0 or 1. In the formulae II, III, each of R -R and R is alkyl, alkenyl, aryl, etc., Z is a group of nonmetallic atoms required to form a 5- or 6-membered hetero ring other than triazole, Y is a counter ion for electric charge balance and n is 0 or 1. High max. image density is obtd. without deteriorating the photographic performance of the sensitive material owing to storage over a long period of time and high sensitivity is attained.

37. 发明专利

JPH02187752A SILVER HALIDE COLOR PHOTOGRAPHIC SENSITIVE MATERIAL 失效
公开(公告)号：JPH02187752A
公开(公告)日：1990-07-23
申请号：JP726689
申请日：1989-01-13
申请人： FUJI PHOTO FILM CO LTD
发明人： WATANABE NOBUO , DEGUCHI HISAYASU , HANAKI KOICHI , HIRANO SHIGEO
IPC分类号： G03C7/26 , G03C1/34 , G03C7/392
摘要： PURPOSE:To obtain a silver halide color photographic sensitive material giving a superior white ground and superior gradation by incorporating at least one of compds. represented by specified general formulae and by specifying the max. absorption wavelength and absorption value of yellow colloidal silver in a hydrophilic colloidal layer. CONSTITUTION:At least one of compds. represented by general formulae I, II is incorporated into a photographic sensitive material having a photosensitive silver halide emulsion layer and a yellow filter layer contg. yellow colloidal silver on the support. The max. absorption wavelength of the colloidal silver in the filter layer is 430-450nm and the wavelength edge giving 1/4 of the max. absorption value is 500-560nm. In the formulae I, II, each of R -R is H, halogen, sulfo or other group and R and R , R and R , R and R or R and R may bond to each other to form a carbon ring or a hetero ring. A silver halide color photographic sensitive material giving a superior white ground and superior gradation is obtd.

38. 发明专利

JPH025042A SILVER HALIDE COLOR REVERSAL PHOTOGRAPHIC SENSITIVE MATERIAL 失效
公开(公告)号：JPH025042A
公开(公告)日：1990-01-09
申请号：JP15638688
申请日：1988-06-24
申请人： FUJI PHOTO FILM CO LTD
发明人： DEGUCHI HISAYASU
IPC分类号： G03C7/305 , G03C7/26 , G03C7/30
摘要： PURPOSE:To improve color reproducibility and bleaching rate by incorporating a silver halide emulsion the particle inside or surface of which is fogged into at last one layer of hydrophilic colloidal layers and incorporating at least one kind of specific compds. therein. CONSTITUTION:This photographic sensitive material is formed by incorporating the silver halide emulsion the particle inside or surface of which is fogged into at least one layer of the photosensitive silver halide emulsion layer positioned furthest from a base and the hydrophilic colloidal layer positioned between this layer and the base. At least one kind of the compd. which release a bleaching accelerator by reacting with the oxidant of an arom. primary amine color developing agent is incorporated into at least one layer of the hydrophilic colloidal layers. Further, the swelling rate in distilled water is so determined as to attain >=1.2. The swelling rate refers to the value obtd. after the thickness of the film swellable in distilled water of room temp. is divided by the thickness of the dry film. The silver halide color photographic sensitive material which has excellent color reproducibility and has the bleaching rate of the level sufficient for practicable use is obtd. in this way.

39. 发明专利

JPH01303437A SILVER HALIDE COLOR PHOTOGRAPHIC SENSITIVE MATERIAL 失效
公开(公告)号：JPH01303437A
公开(公告)日：1989-12-07
申请号：JP13471688
申请日：1988-06-01
申请人： FUJI PHOTO FILM CO LTD
发明人： DEGUCHI HISAYASU , OKADA MASAHIRO , KOJIMA TETSUO
IPC分类号： G03C7/26 , G03C1/825 , G03C1/83
摘要： PURPOSE:To provide the photosensitive material which decreases fogging and has an excellent granular characteristic and color reproducibility by incorporating at least one kind of specific compds. into said material and providing a means of developing an inter-image effect to at least one of emulsion layers. CONSTITUTION:The photographic sensitive material contains at least one kind of the compds. expressed by the formula I and at least one layer of the emulsion layers contain the means of developing the inter-image effect. In the formula, X, Y may be the same as or different from each other and denote a cyano group, carboxy group, etc.; X, Y may be connected to each other to form a ring. R1, R2 may be the same as or different from each other and denote a hydrogen atom, halogen atom, etc.; R3, R4 may be the same as or different from each other and denote a hydrogen atom, alkyl group, etc.; R3, R4 may form 5--6-membered rings; R1 and R3, R2 and R4 may be respectively connected to form 5--6-membered rings. L denotes a methyne group. The increase of the fogging is obviated and the color reproducibility is improved.

40. 发明专利

JPH01207742A SILVER HALIDE COLOR PHOTOGRAPHIC SENSITIVE MATERIAL 失效
公开(公告)号：JPH01207742A
公开(公告)日：1989-08-21
申请号：JP3190388
申请日：1988-02-16
申请人： FUJI PHOTO FILM CO LTD
发明人： DEGUCHI HISAYASU , OKADA MASAHIRO , HAYASHI YASUHIRO
IPC分类号： G03C1/825 , G03C1/83
摘要： PURPOSE:To obviate the residual color of the title material after processing by specifying the average silver iodide content of a whole photosensitive silver halide particle to

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