公开(公告)号：US5336593A

公开(公告)日：1994-08-09

申请号：US85192

申请日：1993-07-02

Applicant: Koji Daifuku ,  Hiroshi Kita ,  Yutaka Kaneko

Inventor： Koji Daifuku ,  Hiroshi Kita ,  Yutaka Kaneko

IPC: G03C7/38 ,  G03C7/392

CPC classification number: G03C7/3835

Abstract: The improved silver halide color photographic material contains at least one pyrazolotriazole base magenta coupler represented by the following general formula [Ia] or [Ib]: ##STR1## This photographic material is improved in image keeping quality, especially in lightfastness, without lowering the efficiency of color formation and it also insures good color reproduction.

Abstract translation: 改进的卤化银彩色照相材料包含至少一种由以下通式[Ia]或[Ib]表示的吡唑并三唑基品红色成色剂：图像保持质量，特别是耐光性，而不降低效率 的颜色形成，并且还确保良好的色彩再现。

公开(公告)号：US5368998A

公开(公告)日：1994-11-29

申请号：US179314

申请日：1994-01-10

Applicant: Hiroshi Ishidai ,  Hiroshi Kita ,  Yutaka Kaneko ,  Koji Daifuku

Inventor： Hiroshi Ishidai ,  Hiroshi Kita ,  Yutaka Kaneko ,  Koji Daifuku

IPC: G03C7/38

CPC classification number: G03C7/3825

Abstract: A silver halide color photographic light sensitive material comprising a magenta coupler of Formula is disclosed. ##STR1## In the formula R.sup.1, R.sup.2, R.sup.3, R.sup.4 and R.sup.5 each represent a hydrogen atom, an aliphatic group, aromatic group or heterocyclic group, wherein R.sup.1, R.sup.2, R.sup.3, R.sup.4 and R.sup.5 each are same or different, the aliphatic group and aromatic group each may have a substituent(s); R.sup.6 and R.sup.7 each represent a hydrogen atom or a substituent, wherein R.sup.6 and R.sup.7 each are same or different and may form a dioxane ring, and the dioxane ring may have a substituent (s); X is a hydrogen atom, or a group or atom which is released upon the reaction with the oxidation product of developing agent; Z.sub.1 is a non-metal group to form a 5-membered cycle in combination with a nitrogen atom; the cycle represented by X may have a sustituent(s).

Abstract translation: 公开了包含式的品红成色剂的卤化银彩色照相感光材料。 式Ⅰ式R1在式中，R 2，R 3，R 4及R 5分别表示氢原子，脂肪族基团，芳香族基或杂环基，其中，R 1，R 2，R 3，R 4，R 5各自相同或不同， 脂族基团和芳族基团各自可以具有取代基; R6和R7各自表示氢原子或取代基，其中R6和R7各自相同或不同，并且可以形成二烷环，二恶烷环可以具有取代基; X是氢原子，或与显影剂的氧化产物反应时释放的基团或原子; Z1是与氮原子组合形成5元环的非金属基团; 由X表示的循环可以具有取代基。

公开(公告)号：US5071737A

公开(公告)日：1991-12-10

申请号：US485163

申请日：1990-02-23

Applicant: Hiroshi Kita ,  Shuji Kida ,  Yutaka Kaneko

Inventor： Hiroshi Kita ,  Shuji Kida ,  Yutaka Kaneko

IPC: G03C7/34 ,  G03C7/32

CPC classification number: G03C7/32

Abstract: A cyan coupler for color photographic use and, particularly, to a photographic coupler forming a dye image excellent in durability against heat, humidity and light is disclosed. A silver halide emulsion layer contains a compound represented by general formula 1, ##STR1## wherein R represents substituents; m represents an integer of 0 or 1 to 6, when m is 2 to 6, plurality of Rs are identical or different; Y and Z are substituents having a Hammett's substituent constant .sigma.p 0.3 to 1.5 and are identical or different; X represents a hydrogen atom or a substituent which is released by a reaction of an oxidized product of a color developing agent.

公开(公告)号：US5011766A

公开(公告)日：1991-04-30

申请号：US460803

申请日：1990-01-04

Applicant: Shuji Kida ,  Hiroshi Kita ,  Shigeto Hirabayashi ,  Yutaka Kaneko

Inventor： Shuji Kida ,  Hiroshi Kita ,  Shigeto Hirabayashi ,  Yutaka Kaneko

IPC: C07D487/04 ,  G03C7/305 ,  G03C7/38

CPC classification number: C07D487/04 ,  G03C7/30529 ,  G03C7/3825

Abstract: A silver halide color photographic light-sensitive material is disclosed, which is improved in the color forming efficiency, the color reproducibility and the resistivity of color image against heat and humidity. The photographic material comprises a silver halide emulsion layer which contains a pyrazoloazole type cyan coupler having a group represented by Formula I which is directly bonded to the azole ring of the pyrazoloazole coupler:--(X.dbd.Y)n--R.sub.1 (I)wherein X and Y each is a substituted or unsubstituted methine group or a nitrogen atom; R.sub.1 is a hydrogen atom or a substituent; and n is an integer of 1 or 2, provided that two of Xs and two of Ys may be the same or different from each other when n is 2, and two of either X, Y and R.sub.1 are allowed to be bonded each other to form a ring other than benzene ring.

公开(公告)号：US5565313A

公开(公告)日：1996-10-15

申请号：US612072

申请日：1996-03-07

Applicant: Hiroshi Ishidai ,  Hiroshi Kita ,  Yutaka Kaneko

Inventor： Hiroshi Ishidai ,  Hiroshi Kita ,  Yutaka Kaneko

IPC: G03C7/00 ,  C07D487/04 ,  G03C7/30 ,  G03C7/38 ,  G03C7/392

CPC classification number: G03C7/3835 ,  G03C7/3008 ,  G03C7/39216

Abstract: Disclosed is a silver halide color photographic light-sensitive material comprising at least one of magenta coupler represented by Formula I or II: ##STR1## wherein R.sup.1 and R.sup.4 each represent a substituent; R.sup.2 and R.sup.3 each represent a substituted or unsubstituted alkyl group; L.sub.1 and L.sub.2 each represent a substituted or unsubstituted alkylene group, an arylene group, an aralkylene group or an arylenealkylene group; Y represents ##STR2## R.sup.5 and R.sup.6 each represent a substituent; X.sub.1 represents a hydrogen atom or a group capable of splitting off upon reacting with an oxidized product of a color developing agent; Z represents non-metal atomic group forming a 5-membered or 6-membered heterocyclic ring together with a nitrogen atom; m and n each represent an integer of 0 or 1; p represents an integer of 0 to 4; q represents an integer of 0 to 2, provided that when p is 2 or more, R.sup.4 may be the same or different; and each of them may form a ring.

Abstract translation: 公开了一种卤化银彩色照相感光材料，其包含由式I或II表示的品红色偶联剂中的至少一种：R 1和R 4各自表示取代基; R2和R3各自表示取代或未取代的烷基; L1和L2各自表示取代或未取代的亚烷基，亚芳基，亚芳烷基或亚芳基亚烷基; Y表示R5和R6各自表示取代基; X1表示氢原子或与彩色显影剂的氧化物反应时能够分解的基团; Z表示与氮原子一起形成5元或6元杂环的非金属原子团; m和n各自表示0或1的整数; p表示0〜4的整数， q表示0〜2的整数，条件是当p为2以上时，R 4可以相同或不同， 并且它们中的每一个可以形成环。

公开(公告)号：US5306610A

公开(公告)日：1994-04-26

申请号：US41515

申请日：1993-04-01

Applicant: Satoru Ikesu ,  Hiroshi Kita ,  Yutaka Kaneko

Inventor： Satoru Ikesu ,  Hiroshi Kita ,  Yutaka Kaneko

IPC: G03C7/38 ,  C07D471/14 ,  C07D487/14 ,  C07D498/14 ,  C07D513/14

CPC classification number: C07D471/14 ,  C07D487/14 ,  C07D513/14 ,  G03C7/381

Abstract: Disclosed is a photographic coupler represented by the formula 1: ##STR1## wherein R.sup.1, R.sup.2 and Y each represent hydrogen atom or a substituent; Z represents a non-metallic atomic group necessary for forming a 5- to 7-membered heterocyclic ring, and said 5- to 7-membered ring may have a substituent(s); and X represents hydrogen atom or a substituent which is eliminatable by the reaction with an oxidized product of a color developing agent, which is used for a light-sensitive silver halide color photographic material and a heat-processable light-sensitive material.

Abstract translation: 公开了由式1表示的照相成色剂：其中R 1，R 2和Y各自表示氢原子或取代基; Z表示形成5-至7-元杂环所需的非金属原子团，所述5-至7-元环可具有取代基; X表示氢原子或可通过与用于感光卤化银彩色照相材料和可热加工的感光材料的彩色显影剂的氧化产物反应而消除的取代基。

公开(公告)号：US5187057A

公开(公告)日：1993-02-16

申请号：US840278

申请日：1992-02-24

Applicant: Satoru Ikesu ,  Hiroshi Kita ,  Yutaka Kaneko

Inventor： Satoru Ikesu ,  Hiroshi Kita ,  Yutaka Kaneko

IPC: C07D487/04 ,  G03C7/38

CPC classification number: C07D487/04 ,  G03C7/3835

Abstract: A silver halide color photographic material is disclosed. The material contains a coupler represented by a formula ##STR1## wherein R.sub.1, R.sub.2 and Y independently represent a hydrogen atom or substituent, X represents a hydrogen atom or an atom or group capable of splitting off upon reaction with the oxidation product of a color developing agent. The dye images formed with the coupler of the present invention are fast to heat, moisture and light.

Abstract translation: 公开了一种卤化银彩色照相材料。 该材料含有由下式表示的成色剂：其中R1，R2和Y独立地表示氢原子或取代基，X表示氢原子或能与颜色显影的氧化产物反应时能分解的原子或基团 代理商 用本发明的成色剂形成的染料图像是快速加热，湿气和光。

公开(公告)号：US5024930A

公开(公告)日：1991-06-18

申请号：US523876

申请日：1990-05-16

Applicant: Hiroshi Kita ,  Hajime Wada ,  Yutaka Kaneko

Inventor： Hiroshi Kita ,  Hajime Wada ,  Yutaka Kaneko

IPC: C07D513/04 ,  G03C7/38

CPC classification number: C07D513/04 ,  G03C7/381

Abstract: There is disclosed a silver halide light-sensitive photographic material containing a novel coupler represented by the following Formula I: ##STR1## wherein R represents a hydrogen atom or a substituent; X and Y represent independently a hydrogen atom or a group capable of splitting off upon a reaction with an oxidation product of a developing agent; Z represents a benzene ring, a naphthalene ring or a the group of atoms necessary to form a 5 to 7-membered heterocyclic ring; and n represents an integer of 1 or 2.

公开(公告)号：US5262293A

公开(公告)日：1993-11-16

申请号：US953069

申请日：1992-09-29

Applicant: Satoru Ikesu ,  Hiroshi Kita ,  Yutaka Kaneko

Inventor： Satoru Ikesu ,  Hiroshi Kita ,  Yutaka Kaneko

IPC: G03C7/305 ,  G03C7/38

CPC classification number: G03C7/30529 ,  G03C7/381

Abstract: A silver halide color photographic light-sensitive material is disclosed. The light-sensitive material comprises a support having thereon a silver halide emulsion layer containing a coupler represented by the following formula I or II; ##STR1## wherein R.sub.1 is a hydrogen atom or a group having a Hammet's .sigma.p value of 0 or more; X1 is a hydrogen atom or a substituent capable of splitting off upon reaction with the oxidation product of a color developing agent; Y.sub.1 is a hydrogen atom or a substituent; and Z.sub.1 is a group of non- metal atoms necessary for forming an aromatic six-member heterocyclic ring which may have a substituent, ##STR2## wherein R.sub.2 and Y.sub.2 are independently a hydrogen atom or a substituent; X.sub.2 is a hydrogen atom or a substituent capable of splitting off upon reaction with the oxidation product of a color developing agent; and Z.sub.2 is a group of non-metal atoms necessary for forming an aromatic five-member heterocyclic ring which may have a substituent.

公开(公告)号：US5223386A

公开(公告)日：1993-06-29

申请号：US753438

申请日：1991-08-30

Applicant: Hiroshi Kita ,  Shuji Kida ,  Yutaka Kaneko

Inventor： Hiroshi Kita ,  Shuji Kida ,  Yutaka Kaneko

IPC: G03C7/32

CPC classification number: G03C7/32

Abstract: There are disclosed a novel cyan dye-forming coupler and a silver halide photographic light-sensitive material containing the novel coupler represented by the following Formulas I to V: ##STR1## wherein R represents a substituent; Y represents a substituent having a Hammett's substituent constant .sigma.p of not less than 0.3 and not more than 1.5; Z represents the group of atoms necessary to form a 5 to 7-membered nitrogen-containing heterocyclic ring; l, m and n are the integers of 0 to 4, 0 to 5 and 0 to 3, respectively; and X represents a hydrogen atom or a substituent capable of splitting off upon a reaction with an oxidation product of a developing agent.

Abstract translation: 公开了一种新型的青色染料形成成色剂和含有由以下式I至V表示的新型成色剂的卤化银照相感光材料：式Ⅰ化学式II 式IV其中R表示取代基; Y表示具有不小于0.3且不大于1.5的哈米特取代基常数σp的取代基; Z表示形成5至7元含氮杂环所必需的原子团; l，m和n分别为0至4,0至5和0至3的整数; X表示氢原子或能够与显影剂的氧化物反应而分解的取代基。