公开(公告)号：US5084593A

公开(公告)日：1992-01-28

申请号：US627583

申请日：1990-12-14

申请人： Hiroshi Gotoh ,  Shigeru Kusakata ,  Isao Shiojima

发明人： Hiroshi Gotoh ,  Shigeru Kusakata ,  Isao Shiojima

IPC分类号： B41M5/136 ,  B41M5/155 ,  B41M5/323 ,  B41M5/333

CPC分类号： B41M5/323 ,  B41M5/136 ,  B41M5/155 ,  B41M5/3335

摘要： Leuco dyes of the formula (I) are disclosed, ##STR1## wherein R.sub.1, R.sub.2, R.sub.3 and R.sub.4 each represent an alkyl group having 1 to 10 carbon atoms; X represents hydrogen, an alkyl group having 1 to 10 carbon atoms, an alkoxy group having 1 to 10 carbon atoms or a halogen; and Y represents R.sub.5 --Z--SO.sub.2 NH--, R.sub.6 --Z--CONH--, or ##STR2## in which Z represents ##STR3## R.sub.5 and R.sub.6 each represent hydrogen, an alkyl group having 1 to 10 carbon atoms, or a halogen; and R.sub.7 and R.sub.8 each represent hydrogen, a cyano group, or --COR.sub.9, in which R.sub.9 represents a lower alkyl group, a lower alkoxyl group, a phenyl group which may be substituted by an alkyl group having 1 to 4 carbon atoms, an alkoxyl group having 1 to 4 carbon atoms, or a halogen; a naphthyl group which may be substituted by an alkyl group having 1 to 4 carbon atoms, an alkoxyl group having 1 to 4 carbon atoms or a halogen with the proviso that R.sub.7 and R.sub.8 are not both hydrogen. Further a recording material comprising any of the above-mentioned leuco dyes and a particular phenolic compound as a color developer capable of inducing color formation in the leuco dye is disclosed.

摘要翻译： 公开了式（I）的无色染料，其中R 1，R 2，R 3和R 4各自表示具有1至10个碳原子的烷基; X表示氢，碳原子数1〜10的烷基，碳原子数1〜10的烷氧基或卤素; 并且Y表示R5-Z-SO2NH-，R6-Z-CONH-或其中Z表示R5和R6各自表示氢，具有1-10个碳原子的烷基或卤素的 并且R 7和R 8各自表示氢，氰基或-COR 9，其中R 9表示低级烷基，低级烷氧基，可被碳原子数1〜4的烷基取代的苯基，烷氧基 具有1至4个碳原子的基团，或卤素; 可以被碳原子数1〜4的烷基取代的萘基，碳原子数1〜4的烷氧基或卤素，条件是R 7和R 8不都是氢。 还公开了一种记录材料，其包含任何上述无色染料和特定的酚类化合物作为能够诱导无色染料形成颜色的彩色显影剂。

公开(公告)号：US4939117A

公开(公告)日：1990-07-03

申请号：US291675

申请日：1988-12-29

申请人： Shigeru Kusakata ,  Hiroshi Gotoh ,  Isao Shiojima

发明人： Shigeru Kusakata ,  Hiroshi Gotoh ,  Isao Shiojima

IPC分类号： B41M5/323

CPC分类号： B41M5/323

摘要： A leuco dye of the formula (I): ##STR1## wherein R.sup.1, R.sup.2, R.sup.3, R.sup.4, R.sup.5, R.sup.6, R.sup.7, and R.sup.8 each represent a lower alkyl group; A represents ##STR2## in which R.sup.9 and R.sup.10 each represent hydrogen, provided that both R.sup.9 and R.sup.10 may not be hydrogen, --CN or --COR.sup.14 in which R.sup.14 represents a phenyl group which is unsubstituted or is substituted by an alkyl group having 1 to 4 carbon atoms, an alkoxyl group having 1 to 4 carbon atoms, or a halogen, a naphthyl group which is unsubstituted or is substituted by an alkyl group having 1 to 4 carbon atoms, an alkoxyl group having 1 to 4 carbon atoms or a halogen, or a lower alkoxyl group, ##STR3## in which ##STR4## represents a phenyl group or a naphthyl group, R.sup.11 represents hydrogen, a lower alkyl group, a halogen, an amino group, which is unsubstituted or is substituted by an alkyl group having 1 to 4 carbon atoms, or a nitro group, or ##STR5## in which R.sup.12 represents a lower alkyl group, or ##STR6## in which R.sup.13 represents hydrogen, a lower alkyl group, a halogen, a hydroxyl group, a trifluoromethyl group, a nitro group, an amino group which is unsubstituted or is substituted by an alkyl group having 1 to 4 carbon atoms, or amide group. These dyes absorb in the near-infrared region and yields colored images with a color developer therefor with excellent preservability.

摘要翻译： 式（I）的无色染料：其中R 1，R 2，R 3，R 4，R 5，R 6，R 7和R 8各自表示低级烷基; A表示，其中R 9和R 10各自表示氢，条件是R 9和R 10可以不是氢，-CN或-COR 14，其中R 14表示未被取代或被具有1至 4个碳原子，具有1至4个碳原子的烷氧基或卤素，未被取代或被具有1至4个碳原子的烷基取代的萘基，具有1至4个碳原子的烷氧基或卤素 ，或低级烷氧基，其中表示苯基或萘基，R11表示氢，低级烷基，卤素，氨基，未取代或被烷基取代的低级烷氧基 具有1至4个碳原子的硝基或硝基，或其中R 12表示低级烷基的“IMAGE”，或其中R 13表示氢，低级烷基，卤素，羟基，三氟甲基 硝基，未取代或被取代的氨基 具有1〜4个碳原子的烷基或酰胺基。 这些染料在近红外区域吸收并产生具有显色剂的彩色图像，具有优异的保存性。

公开(公告)号：US5057154A

公开(公告)日：1991-10-15

申请号：US512208

申请日：1990-04-20

申请人： Shigeru Kusakata ,  Hiroshi Gotoh ,  Isao Shiojima

发明人： Shigeru Kusakata ,  Hiroshi Gotoh ,  Isao Shiojima

IPC分类号： B41M5/323

CPC分类号： B41M5/323

摘要： A leuco dye of the formula (I): ##STR1## wherein R.sup.1, R.sup.2, R.sup.3, R.sup.4, R.sup.5, R.sup.6, R.sup.7, and R.sup.8 each represent a lower alkyl group; A represents ##STR2## in which R.sup.9 and R.sup.10 each represent hydrogen, provided that both R.sup.9 and R.sup.10 may not be hydrogen, --CN or --COR.sup.14 in which R.sup.14 represents a phenyl group which is unsubstituted or is substituted by an alkyl group having 1 to 4 carbon atoms, an alkoxyl group having 1 to 4 carbon atoms, or a halogen, a naphthyl group which is unsubstituted or is substituted by an alkyl group having 1 to 4 carbon atoms, an alkoxyl group having 1 to 4 carbon atoms or a halogen, or a lower alkoxyl group, ##STR3## in which ##STR4## represents a phenyl group or a naphthyl group, R.sup.11 represents hydrogen, a lower alkyl group, a halogen, an amino group, which is unsubstituted or is substituted by an alkyl group having 1 to 4 carbon atoms, or a nitro group, or ##STR5## in which R.sup.12 represents a lower alkyl group, or ##STR6## in which R.sup.13 represents hydrogen, a lower alkyl group, a halogen, a hydroxyl group, a trifluoromethyl group, a nitro group, an amino group which is unsubstituted or is substituted by an alkyl group having 1 to 4 carbon atoms, or amide group. These dyes absorb in the near-infrared region and yields colored images with a color developer therefor with excellent preservability.

公开(公告)号：US5008238A

公开(公告)日：1991-04-16

申请号：US367684

申请日：1989-06-19

申请人： Hiroshi Gotoh ,  Shigeru Kusakata ,  Isao Shiojima

发明人： Hiroshi Gotoh ,  Shigeru Kusakata ,  Isao Shiojima

IPC分类号： B41M5/136 ,  B41M5/155 ,  B41M5/323 ,  B41M5/333

CPC分类号： B41M5/323 ,  B41M5/136 ,  B41M5/155 ,  B41M5/3335

摘要： Leuco dyes of the formula (I) are disclosed, ##STR1## wherein R.sub.1, R.sub.2, R.sub.3 and R.sub.4 each represent an alkyl group having 1 to 10 carbon atoms; X represents hydrogen, an alkyl group having 1 to 10 carbon atoms, an alkoxyl group having 1 to 10 carbon atoms or a halogen; and Y represents R.sub.5 --Z--SO.sub.2 NH--, R.sub.6 --Z--CONH--, or ##STR2## in which Z represents ##STR3## R.sub.5 and R.sub.6 each represent hydrogen, an alkyl group having 1 to 10 carbon atoms, or a halogen; and R.sub.7 and R.sub.8 each represent hydrogen, provided that both R.sub.7 and R.sub.8 may not be hydrogen, a cyano group, or --COR.sub.9, in which R.sub.9 represents a lower alkyl group, a lower alkoxyl group, a phenyl group which may be substituted by an alkyl group having 1 to 4 carbon atoms, an alkoxyl group having 1 to 4 carbon atoms, or a halogen; a naphthyl group which may be substituted by an alkyl group having 1 to 4 carbon atoms, an alkoxyl group having 1 to 4 carbon atoms or a halogen. Further a recording material comprising any of the above-mentioned leuco dyes and a particular phenolic compound as a color developer capable of inducing color formation in the leuco dye is disclosed.

摘要翻译： 公开了式（I）的无色染料，其中R 1，R 2，R 3和R 4各自表示具有1至10个碳原子的烷基; X表示氢，碳原子数1〜10的烷基，碳原子数1〜10的烷氧基或卤素; 并且Y表示R5-Z-SO2NH-，R6-Z-CONH-或其中Z表示R5和R6各自表示氢，具有1-10个碳原子的烷基或卤素的 并且R 7和R 8各自表示氢，条件是R 7和R 8可以不是氢，氰基或-COR 9，其中R 9表示低级烷基，低级烷氧基，可被 具有1至4个碳原子的烷基，具有1至4个碳原子的烷氧基或卤素; 可以被碳原子数1〜4的烷基取代的萘基，碳原子数1〜4的烷氧基或卤素。 还公开了一种记录材料，其包含任何上述无色染料和特定的酚类化合物作为能够诱导无色染料形成颜色的彩色显影剂。

公开(公告)号：US4847385A

公开(公告)日：1989-07-11

申请号：US31374

申请日：1987-03-30

申请人： Shigeru Kusakata ,  Aimi Suzuki ,  Isao Shiojima

发明人： Shigeru Kusakata ,  Aimi Suzuki ,  Isao Shiojima

IPC分类号： G11B7/247

CPC分类号： G11B7/2472 ,  G11B7/2531 ,  G11B7/2532 ,  G11B7/2533 ,  Y10T428/2457 ,  Y10T428/24835

摘要： A cyanine dye having formula (I): ##STR1## wherein R.sup.1 represents Cl, Br or hydrogen; R.sup.2 represents Cl, Br, hydrogen, or a nitro group; R.sup.3 and R.sup.4 each represent a methyl group, an ethyl group, a propyl group or --(CH.sub.2).sub.n OR.sup.5 (in which n is an integer of 2 or 3, and R.sup.5 represents hydrogen or an acetyl group), and X.sup..crclbar. represents an acid anion, provided that the case where R.sup.3 and R.sup.4 are both an identical alkyl group, and R.sup.1 and R.sup.2 are an identical group, is excluded; andan optical information recording medium including a recording layer comprising the above cyanine dye.

摘要翻译： 具有式（I）的花青染料：其中R 1表示Cl，Br或氢; R2表示Cl，Br，氢或硝基; R 3和R 4各自表示甲基，乙基，丙基或 - （CH 2）nOR 5（其中n为2或3的整数，R 5表示氢或乙酰基），X（ - ）表示 只要R3和R4都是相同的烷基，R1和R2是相同的基团的情况就被排除了; 以及包括含有上述花青染料的记录层的光学信息记录介质。