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1. 发明专利

JPH09325459A SILVER HALIDE COLOR PHOTOGRAPHIC MATERIAL WITH IMPROVED FASTNESS OF PIGMENT IMAGE 失效
公开(公告)号：JPH09325459A
公开(公告)日：1997-12-16
申请号：JP14012796
申请日：1996-06-03
申请人： KONISHIROKU PHOTO IND
发明人： YAMADA KEIKO , SUGITA SHUICHI , KANEKO YUTAKA
IPC分类号： G03C7/00 , G03C7/38 , G03C7/392
摘要： PROBLEM TO BE SOLVED: To provide a photographic material with a magenta pigment image having little discoloration against light by containing at least one kind of a specific compound in at least one layer of the constituting layers of the photographic material. SOLUTION: At least one kind of the compound expressed by the formula is contained in at least one layer of the constituting layers of a photographic material, where R1 represents substituent, (n) represents an integer of 0-4, L represents oxygen atom, sulfur atom, carbonyl group, sulfonyl group, alkylene group, allylene group, NR , or the bivalent group combined with them, R represents hydrogen atom, alkyl group, aryl group, or acyl group, Y represents nitrogen atom, phosphorus atom, phosphonic oxide, or the trivalent organic group having one or more carbon atoms, and Z1 represents a group of nonmetallic atoms required to form a nitrogen-containing heterocyclic ring. Alkyl, aryl, aniline, or acyl amino group can be used for the substituent represented by R1 , for example.

2. 发明专利

JPH09297380A SILVER HALIDE COLOR PHOTOGRAPHIC SENSITIVE MATERIAL 失效
公开(公告)号：JPH09297380A
公开(公告)日：1997-11-18
申请号：JP11253896
申请日：1996-05-07
申请人： KONISHIROKU PHOTO IND
发明人： SUGITA SHUICHI , SUZUKI TAKASHI , YAMADA KEIKO
IPC分类号： G03C7/00 , G03C7/38
摘要： PROBLEM TO BE SOLVED: To enhance color developing performance and to improve the lightfastness of a magenta dye image by incorporating a specified coupler in a green-sensitive silver halide emulsion layer. SOLUTION: This silver halide color photographic sensitive material has on a support the photographic constituent layers comprising blue-, green-, and red-sensitive silver halide emulsion layers and it contains in at least one green- sensitive silver halide emulsion layers at least one kind of coupler represented by the formula in which each of R1 -R3 is an alkyl or aryl or heterocyclic group; L is a sulfur atom, or a sulfoxide, sulfonyl, carbonyloxy, carboxamido, or sulfonamido group; R4 is an H atom or a substituent; X is an H atom or a group to be released by reaction with the oxidation product of a color developing agent; and Z is a nonmetallic atomic group necessary to form an N- containing hetero ring.

3. 发明专利

JPH0798489A NOVEL COUPLER FOR PHOTOGRAPHY 失效
公开(公告)号：JPH0798489A
公开(公告)日：1995-04-11
申请号：JP24145393
申请日：1993-09-28
申请人： KONISHIROKU PHOTO IND
发明人： YAMADA KEIKO , IKESU SATORU , KANEKO YUTAKA
IPC分类号： G03C7/38 , C07D487/04 , C07D513/04
摘要： PURPOSE:To produce the coupler for photography which is used as the base stock of a silver halide color photographic sensitive material and capable of forming the color picture without causing the change of a hue due to heat, humidity and light. CONSTITUTION:The coupler for photography is expressed by formula I. In the formula I, R is hydrogen atom or substd. group, (n) is 1 or 2, X is hydrogen atom or the group capable of leaving by the reaction with the oxidant of a color developing agent. Or, the coupler for photography is expressed by formula II. In the formula II, R1 and R2 are hydrogen atom or substd. group, (n) is 1 or 2, X is hydrogen atom or the group capable of leaving by the reaction with the oxidant of the color developing agent.

4. 发明专利

JPH1010690A SILVER HALIDE COLOR PHOTOGRAPHIC SENSITIVE MATERIAL 失效
公开(公告)号：JPH1010690A
公开(公告)日：1998-01-16
申请号：JP15818196
申请日：1996-06-19
申请人： KONISHIROKU PHOTO IND
发明人： YAMADA KEIKO , SUGITA SHUICHI , SUZUKI TAKASHI , KANEKO YUTAKA
IPC分类号： G03C7/00 , G03C7/38
摘要： PROBLEM TO BE SOLVED: To obtain the silver halide color photographic sensitive material superior in color developing performance and improved in the lightfastness of a magenta dye image by incorporating a specified coupler in a green-sensitive silver halide emulsion layer. SOLUTION: This photosensitive material is provided on a support with photographic constituent layers comprising blue-, green-, and red-sensitive silver halide emulsion layers, and at least one of the green-sensitive silver halide emulsion layers contains the coupler represented by the formula in which R1 is an H atom or a substituent; each of R2 and R3 is an H atom or an aliphatic group; L1 is an alkylene or arylene group or the like; L2 is an oxygen atom or a sulfonyl group or the like; L3 is an oxygen atom or an arylene group or the like; R4 is an H atom or an alkyl group or the like; X is an H atom or an atom or a group to be released by reaction with the oxidation product of a color developing agent; and Z is a nonmetallic atomic group necessary to form an N-containing heterocyclic group.

5. 发明专利

JPH10133342A SILVER HALIDE COLOR PHOTOGRAPHIC SENSITIVE MATERIAL 失效
公开(公告)号：JPH10133342A
公开(公告)日：1998-05-22
申请号：JP28981196
申请日：1996-10-31
申请人： KONISHIROKU PHOTO IND
发明人： DAIBA SHINICHI , ISHII FUMIO , YAMADA KEIKO , IIZUKA HIROYUKI
IPC分类号： G03C7/00 , G03C7/38
摘要： PROBLEM TO BE SOLVED: To improve the lightfastness of a Magenta dye image by incorporating a specific Magenta coupler in a green sensitive silver halide emulsion layer to attain excellent color development property. SOLUTION: At least one kind of the Magenta coupler expressed by the formula is incorporated in at least one layer of the green sensitive silver halide emulsion layer in a silver halide color photographic sensitive material having photographic structural layer containing a blue sensitive silver halide emulsion layer, the green sensitive silver halide emulsion layer and a red sensitive silver halide emulsion layer. In the formula, each of R1 and R2 represents a substituent, X1 represents hydrogen atom or a group releasable by the reaction with an oxidized body of a coloring developing agent, Z1 represents a nonmetallic atomic group necessary for forming a nitrogen-containing 5-members heterocyclic ring, A represents a condensation or non-condensation heterocyclic aromatic 6- members ring and has a substituent at the α-position of an atom bonded with Z1 . In this case, as the silver halide emulsion layer to be used, an optional one of common silver halide emulsion layers may be used.

6. 发明专利

JPH09311424A SILVER HALIDE COLOR PHOTOGRAPHIC SENSITIVE MATERIAL 失效
公开(公告)号：JPH09311424A
公开(公告)日：1997-12-02
申请号：JP12976896
申请日：1996-05-24
申请人： KONISHIROKU PHOTO IND
发明人： SUGITA SHUICHI , SUZUKI TAKASHI , YAMADA KEIKO
IPC分类号： G03C7/00 , G03C7/38
摘要： PROBLEM TO BE SOLVED: To obtain a silver halide color photographic sensitive material excellent in coloring property and giving a magenta dye image having remarkably improved light fastness. SOLUTION: This silver halide color photographic sensitive material has photographic constituent layers including blue-sensitive silver halide emulsion layers, green-sensitive silver halide emulsion layers and red-sensitive silver halide emulsion layers on the substrate and contains at least one kind of coupler represented by formula (M-1) in at least one of the green-sensitive silver halide emulsion layers. In the formula I, R1 is H or a substituent, R2 is phenylene or alkylene, R3 is a monovalent >=15C nonarom. org. group having two or more hydroxyl groups, L is a divalent combining group, X is H or an atom or a group releasable by reaction with the oxidized body of a color developing agent and Z is a group of nonmetallic atoms required to form an N-contg. hetero ring.

7. 发明专利

JPH09146240A SILVER HALIDE COLOR PHOTOGRAPHIC SENSITIVE MATERIAL 失效
公开(公告)号：JPH09146240A
公开(公告)日：1997-06-06
申请号：JP30747795
申请日：1995-11-27
申请人： KONISHIROKU PHOTO IND
发明人： YAMADA KEIKO , SUGITA SHUICHI , KANEKO YUTAKA
IPC分类号： G03C7/00 , G03C7/38
摘要： PROBLEM TO BE SOLVED: To obtain superior coloring properties and improve the light stiffness of a magenta dye image by incorporating at least one kind of specific coupler in at least one green sensitive silver halide emulsion layer. SOLUTION: The silver halide color photographic sensitive material, which has a blue sensitive silver halide emulsion layer, a green sensitive silver halide emulsion layer, and a red sensitive silver halide emulsion layer on its base, contains at least one kind of coupler, shown by a formula, in at least one green- sensitive silver halide emulsion layer. In the formula, R1 is a hydrogen atom or substituent, L1 an alkylene group, L2 an oxygen atom, a sulfur atom, a carbonyl group, a sulfonyl group, an alkylene group, -NR2 , or a bivalent group obtained by combining them. Then R2 is a hydrogen atom, an alkyl group, or an aryl group. Further, X1 is a group which can be desorbed by reacting on a hydrogen atom or an oxidant of a coloring developing base. Furthermore, Z1 is a nonmetal atom group needed to form a nitrogen containing heterocycle.

8. 发明专利

JPH0733996A PYRAZOLOIMIDAZOLE COLORING MATTER HAVING FUSED RING 失效
公开(公告)号：JPH0733996A
公开(公告)日：1995-02-03
申请号：JP18045593
申请日：1993-07-21
申请人： KONISHIROKU PHOTO IND
发明人： IKESU SATORU , YAMADA KEIKO , KANEKO YUTAKA
IPC分类号： B41M5/385 , B41M5/388 , B41M5/39 , C09B55/00 , C09B57/00 , B41M5/38
摘要： PURPOSE:To provide the title new coloring matter excellent in spectral absorption characteristics, heat resistance and moisture resistance. CONSTITUTION:A pyrazoloimidazole coloring matter having a fused ring represented by the formula wherein R1 and R2 are each H or (substituted) alkyl and they may form a five- or six-membered ring; R3 to R6 are each H, halogen, (substituted) alkyl or (substituted) alkoxy, and R1 and R4 or R2 and R6 may form a fiveor six-membered ring; R7 is H or a substituent having a Hammett SIGMAp of 0 or greater; and Z is a group of nonmetallic atoms necessary for the formation of a six-membered heterocyclic ring.

9. 发明专利

JPH09281673A SILVER HALIDE COLOR PHOTOGRAPHIC SENSITIVE MATERIAL WITH IMPROVED FASTNESS OF DYE IMAGE 失效
公开(公告)号：JPH09281673A
公开(公告)日：1997-10-31
申请号：JP8938896
申请日：1996-04-11
申请人： KONISHIROKU PHOTO IND
发明人： YAMADA KEIKO , SUGITA SHUICHI , KANEKO YUTAKA
IPC分类号： G03C7/00 , G03C7/38 , G03C7/392
摘要： PROBLEM TO BE SOLVED: To form a magenta dye image less liable to discoloration due to light by incorporating a specified compd. SOLUTION: At least one kind of compd. represented by the formula is incorporated into at least one of the constituent layers of a silver halide color photographic sensitive material with at least one silver halide emulsion layer on the substrate. In the formula, R1 is a substituent such as alkyl or aryl, n is an integer of 0-4, L is alkylene, Y is O, S, carbonyl, sulfonyl, alkylene, arylene, NR2 or a divalent group obtd. by combining them, R2 is H, alkyl, aryl or acyl and Z1 is a group of nonmetallic atoms required to form an N- contg. hetero ring such as pyrrolidine or piperazine.

10. 发明专利

JPH09171238A SILVER HALIDE COLOR PHOTOGRAPHIC SENSITIVE MATERIAL 失效
公开(公告)号：JPH09171238A
公开(公告)日：1997-06-30
申请号：JP27598496
申请日：1996-10-18
申请人： KONISHIROKU PHOTO IND
发明人： SUGITA SHUICHI , SUZUKI TAKASHI , YAMADA KEIKO , YASUKAWA HIROYUKI
IPC分类号： G03C7/00 , G03C7/38
摘要： PROBLEM TO BE SOLVED: To provide a silver halide color photographic sensitive material superior in color development performance and remarkably improve in lightfastness of a magenta dye image by incorporating a specified magenta coupler. SOLUTION: This silver halide color photographic sensitive material has photographic constituent layers comprising blue-, green-, and red-sensitive silver halide emulsion layers, and at least of the green-sensitive silver halide emulsion layers contains one of the magenta couplers represented by the formula in which R is an H atom or a substituent; each of R1 -R3 is an alkyl or aryl group; X1 is an H atom or a group to be released by reaction with the oxidation product of a color developing agent; Z is a nonmetallic atomic group necessary to from an N-containing hetero ring; and (n) is integers of 1, 2, or 3.

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