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81. 发明专利

JPH01258479A PHOTOSENSOR 失效
公开(公告)号：JPH01258479A
公开(公告)日：1989-10-16
申请号：JP8522188
申请日：1988-04-08
申请人： FUJI XEROX CO LTD
发明人： KIN ISHI , FURUKI MAKOTO , FU RYUJUN
IPC分类号： C09B23/00 , H01L31/08 , H01L51/42
摘要： PURPOSE:To obtain a photosensor high in sensitivity, an S/N ratio, and an optical response speed by a method wherein a photoconductor layer is composed of a single molecule cumulated layer which contains a squarelyrium dye represented by a specified formula. CONSTITUTION:A photoconductor layer 3 is formed on a substrate 1, and electrodes 21 and 22 are formed thereon separating from each other. The photoconductor layer 3 is formed of single molecule cumulated films which contain a squarelyrium dye which is represented by a formula. In the formula, R1, R2, R3, and R4 are alkali groups the same or different from each other. The single molecule cumulated film contains a squarelyrium dye, where molecules are regularly arranged, so that the photoconductor layer 3 has such characteristics that an absorbing coefficient, a quantum efficiency, and a carrier mobility are large and it is uniform in thickness. Therefore, these characteristics contribute to the improvement of properties of a photosensor such as a sensitivity, a high S/N ratio, and a high speed response property.

82. 发明专利

JPS62267756A ELECTROPHOTOGRAPHIC SENSITIVE BODY 失效
公开(公告)号：JPS62267756A
公开(公告)日：1987-11-20
申请号：JP11062086
申请日：1986-05-16
申请人： FUJI XEROX CO LTD
发明人： AKASAKI YUTAKA , TOKIDA AKIHIKO , KIN ISHI , SAEKI SATORU , TORIGOE KAORU
IPC分类号： G03G5/06
摘要： PURPOSE:To increase the sensitivity of a sensitive body and to improve the electrical characteristics by forming a photosensitive layer contg. a specified squarylium pigment. CONSTITUTION:A squarylium pigment represented by the formula is used in the electrostatic charge generating layer of a sensitive body. In the formula, each of R1, R2 and R6 is 1-6C straight chain alkyl, hydroxyl, 1-4C alkoxy, halogen, nitro, cyano or the like, each of R3 and R4 is H, hydroxyl, methyl, trifluoromethyl, halogen or carboxyl and R5 is 1-20C alkyl. Thus, a sensitive body provided with a photosensitive layer having spectral sensitivity over the visible region and the near infrared region, high sensitivity, superior electrostatic chargeability and dark decay is obtd.

83. 发明专利

JPS62249950A SQUARYLIUM COMPOUND AND PRODUCTION THEREOF 失效
公开(公告)号：JPS62249950A
公开(公告)日：1987-10-30
申请号：JP9125786
申请日：1986-04-22
申请人： FUJI XEROX CO LTD
发明人： AKASAKI YUTAKA , TOKIDA AKIHIKO , KIN ISHI , SAEKI SATORU , TORIGOE KAORU
IPC分类号： C07C67/00 , C07C213/00 , C07C215/70 , G03G5/06
摘要： NEW MATERIAL:A squarylium compound of formula I (R is H, methyl; R' is H, F; where R=R'not equal to H). USE:An organic photoconductive material such as an electrophotographic photoreceptor. It is used as a photoconductive substance for the electric charge- generating layer in the photosensitive material which is composed of the charge- generating layer and the charge-transferring layer. PREPARATION:For example, the Friedel-Craft reaction between 3,4-dichloro-3- cyclobutene-1,2-dione of formula II and an aniline derivative of formula III is carried out in the presence of a catalyst such as AlCl3 in a solvent at 0-80 deg.C for 30min-20hr. The product of formula IV is hydrolyzed under reflux in a water-acetic acid mixed solvent into a compound of formula V. The compound is heated together with an aniline derivative of formula VI under reflux in a solvent or under reduced pressure as the water formed is removed to effect condensation reaction at 80-140 deg.C for 2-50hr whereby the compound of formula I of high purity is obtained in high yield.

84. 发明专利

JPS60260547A NOVEL SQUARIUM COMPOUND AND PREPARATION THEREOF 失效
公开(公告)号：JPS60260547A
公开(公告)日：1985-12-23
申请号：JP9276984
申请日：1984-05-11
申请人： FUJI XEROX CO LTD
发明人： SAEKI SATORU , KIN ISHI , TORIGOE KAORU , TANAKA HIROYUKI , FUU RIYUUJIYUN
IPC分类号： G03G5/06 , C07C67/00 , C07C213/00 , C07C213/10 , C07C215/70 , C07C225/22 , H01L31/08 , H01L51/42
摘要： NEW MATERIAL:A compound expressed by formula I (X is F or Cl; Y is H or F). USE:An electric charge generating substance for electrophotographic sensitive materials, having flat photosensitivity over all the range of visible to near infrared wavelength regions, applicable as semiconductor laser printers, widely used as intelligent copiers, and also applicable to optical recording media, e.g. laer disks and organic solar cells, etc. in addition to the electrophotographic field. PREPARATION:3,4-Dihydroxy-3-cyclobutene-1-2-dione expressed by formula II is reacted with an aniline derivative expressed by formula III to give the aimed compound expressed by formula I. The reaction is carried out in a solvent, e.g. n-butyl alcohol, at 110-140 deg.C for 3-5hr.

85. 发明专利

JPS60260545A NOVEL ANILINE DERIVATIVE AND ITS PREPARATION 失效
公开(公告)号：JPS60260545A
公开(公告)日：1985-12-23
申请号：JP10477984
申请日：1984-05-25
申请人： FUJI XEROX CO LTD
发明人： SAEKI SATORU , TORIGOE KAORU , TANAKA HIROYUKI , KIN ISHI , FUU RIYUUJIYUN
IPC分类号： C07C211/52 , C07C67/00 , C07C209/00 , C07C209/10 , C07C211/45 , C07C227/00 , C07C227/06 , C07C227/08 , C07C229/38
摘要： NEW MATERIAL:The compound of formula I (X1 is F, nitro, carboxyl or ethoxycarbonyl; X2 is H or F: Y is H or methyl; when X1 is nitro and X2 is H, Y is not H). USE:A charge generating substance for photosensitive material for electrophotography. It has flat photo-sensitivity over 400-850nm, and has sufficiently high sensitivity in whole visible range and near infrared range. Accordingly, it can be applied not only to a conventional electrophotographic copier but also to a semiconductor laser printer. It can be used widely as an intelligent copier. It is applicable as an optical recording medium such as laser disc or an organic solar cell as well as the electrophotography. PREPARATION:The compound of formula I can be prepared by reacting the N- methylaniline derivative or formula II with the substituted benzyl bromide of formula III.

86. 发明专利

JPS60258547A ELECTROPHOTOGRAPHIC SENSITIVE BODY 失效
公开(公告)号：JPS60258547A
公开(公告)日：1985-12-20
申请号：JP10478084
申请日：1984-05-25
申请人： FUJI XEROX CO LTD
发明人： TANAKA HIROYUKI , KIN ISHI , SAEKI SATORU , FUU RIYUUJIYUN , TORIGOE KAORU
IPC分类号： G03G5/00 , C09B23/00 , G03G5/04 , G03G5/06 , H01L51/42
摘要： PURPOSE:To obtain an org. photosensitivity body having an excellent electrostatic charge characteristic, photosensitive characteristic and above all, absolute sensitivity and flat sensitivity over visible light - near IR light by incorporating a specific squarium pigment into an electrostatic charge generating layer and incorporating specific arom. diamine into an electrostatic charge transfer layer. CONSTITUTION:The coating liquid prepd. by dispersing the squarium pigment expressed by formula I (X is halogen, CH3OCH3, NO2, CN, COOH or COOC2H5, n is 0 or 1-5, Y is H, OH or CH3) into a soln. of a polyester resin, etc. is coated on a conductive film of Al, etc. deposited by evaporation on a base consisting of a polyester film, etc. and is dried to form the charge generating layer. The coating liquid prepd. by dissolving the compd. expressed by formula II (A is CH3 or Cl) in a soln. of a polycarbonate, etc. is coated on the charge generating layer and is dired to form the charge transfer layer. The charge transfer layer and generating layer may be provided in reverse order. The photosensitive body which has high sensitivity with long wavelength light, has substantially zero residual potential and permits copying with high image quality is thus obtd.

87. 发明专利

JPS60248653A NOVEL SQUARIUM COMPOUND AND ITS PREPARATION 失效
公开(公告)号：JPS60248653A
公开(公告)日：1985-12-09
申请号：JP10477784
申请日：1984-05-25
申请人： FUJI XEROX CO LTD
发明人： TANAKA HIROYUKI , KIN ISHI , SAEKI SATORU , FUU RIYUUJIYUN , TORIGOE KAORU
IPC分类号： G03G5/06 , C07C67/00 , C07C241/00 , C07C251/30 , C09B23/00 , C09B57/00 , H01L31/08
摘要： NEW MATERIAL:The squarium compound of formula I (X1 is H, F or Br; X2- X5 are H, F or Cl). USE:A charge generation substance of the photosensitive material for electrophotography. Applicable to a semiconductor laser printer, and usable widely as an intelligent copier. It can be applied also as an optical recording medium such as laser disc and an organic solar cell, etc. PREPARATION:The compound of formula I can be prepared by reacting 3,4-dihydroxy-3-cyclobutene-1,2-dione of formula II with the aniline derivative of formula III, e.g. in n-butyl alcohol or amyl alcohol at 120-140 deg.C. The compound of formula I has flat spectrometric sensitivity over a wavelength range of 400- 850nm, and exhibits sufficiently high photosensitivity in whole visible range and near-infrared range.

88. 发明专利

JPS60132945A NOVEL SQUARYLIUM COMPOUND AND ITS PREPARATION 失效
公开(公告)号：JPS60132945A
公开(公告)日：1985-07-16
申请号：JP23981583
申请日：1983-12-21
申请人： FUJI XEROX CO LTD
发明人： TANAKA HIROYUKI , KIN ISHI , FUU RIYUUJIYUN
IPC分类号： G03G5/06 , C07C67/00 , C07C241/00 , C07C251/30 , C09B23/00 , C09B57/00 , H01L31/08 , H01L51/42
摘要： NEW MATERIAL:A squarylium compound shown by the formula I (X is hydroxyl, methoxy, or halogen). USE:Useful as an electron generating substance for a sensitized material of lamnation type. Showing spectral sensitivity of flat photosensitivity in 400-850nm range, exhibiting sufficient spectral sensitivity in the whole light range and a near infrared ray range, usable not only as electrophotographic reproduction but also as a semiconductor laser and an intelligent copier. Besides electrophotographic field, usable as an optical recording medium for laser disc, etc. or applicable as an organic solar cell, etc. PREPARATION:3,4-Dihydroxy-3-cyclobutene-1,2-dione shown by the formula II is reacted with an aniline derivative shown by the formula III in a solvent such as n-butanol, etc. at 120-140 deg.C, to give a compound shown by the formula I .

89. 发明专利

JPS60128452A ELECTROPHOTOGRAPHIC SENSITIVE BODY 失效
公开(公告)号：JPS60128452A
公开(公告)日：1985-07-09
申请号：JP23620483
申请日：1983-12-16
申请人： FUJI XEROX CO LTD
发明人： KIN ISHI , TANAKA HIROYUKI , FUU RIYUUJIYUN
IPC分类号： C09B23/00 , G03G5/06 , H01L31/08
摘要： PURPOSE:To obtain a photoconductive material having high spectral sensitivity from the visible region to the near IR region by forming a photosensitive layer contg. a squarium pigment represented by a specified general formula on a conductive substrate. CONSTITUTION:A photosensitive layer 4 formed on a conductive substrate 1 is obtained by laminating an electrostatic charge generating layer 2 contg. a squarium pigment represented by the formula shown here alone or together with a binder resin, and a charge transfer layer 3 contg. a charge transfer material. In the formula, X is H, 1-6 C chain alkyl, OH, 1-4 C alkoxy, or halogen, and Y is H, 1-4 C alkyl or such alkoxy, or OH.

90. 发明专利

JP2003122057A DISPLAY 审中-公开
公开(公告)号：JP2003122057A
公开(公告)日：2003-04-25
申请号：JP2001320623
申请日：2001-10-18
申请人： FUJI XEROX CO LTD , DENSO CORP
发明人： KIN ISHI , IIDA YOSHIFUMI , IWASE TERUHIKO
IPC分类号： G03G9/09 , G03G9/087 , G03G15/20
摘要： PROBLEM TO BE SOLVED: To provide a display on which an image section and a background section are to be formed by an electrophotographic system, and which decreases the pinholes in the image section and the background section and does not disturb the images at a high temperature of about 100 deg.C. SOLUTION: This display obtained by respectively forming the image section and the background section with a color toner and a black toner by an electrophotographic system on an image recording medium, is characterized in that the color toner and the black toner respectively satisfy a number average molecular weights of 1,000 to 6,000 and a mass average molecular weights of 30,000 to 150,000 by gel permeation chromatography in solution of tetrahydrofuran (THF) and have peaks in the molecular weight distributions respectively of the region of the molecular weight 1,000 to 10,000 and the region of the molecular weight 100,000 to 1,500,000 and the ratio occupied by the pinholes per unit area is % in the image sections and the background section.

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