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1. 发明专利

JPH0971052A REVERSIBLE THERMAL RECORD MEDIUM 失效
公开(公告)号：JPH0971052A
公开(公告)日：1997-03-18
申请号：JP13662396
申请日：1996-05-30
申请人： TOSHIBA CORP
发明人： TAKAYAMA AKIRA , FUJIOKA SAWAKO , OKUYAMA TETSUO , NISHIZAWA HIDEYUKI , MIYAMOTO HIROHISA , SUGIUCHI MASAMI
IPC分类号： B41M5/337 , B41M5/26 , B41M5/30 , B41M5/333
摘要： PROBLEM TO BE SOLVED: To develop and consume colors by a single heating device and improve preservation stability by adding a coloring compound, a developer, and a reversible material having a specified wt.% or above of a sterol compound having a specified structural formula to a reversible thermal record medium. SOLUTION: To a reversible thermal record medium, a coloring compound, a developer, and a reversible material which reveals reversible change of a composition system due to supply of binary heat energy or two kinds of heat history are added. Eighty wt.% or above of the reversible material is formed of a sterol compound wherein carbon-to-carbon bond between secondary carbon and third carbon and between third carbon and fourth carbon in steroid skeleton to be expressed by a formula I are single bond, having a hydroxyl group bonded to at least third carbon, and having any structure where sixteenth and seventeenth carbons are to be expressed by formulas II-V.

2. 发明专利

JPH0784231A RECORDING MEDIUM 失效
公开(公告)号：JPH0784231A
公开(公告)日：1995-03-31
申请号：JP22990593
申请日：1993-09-16
申请人： TOSHIBA CORP
发明人： TAKAYAMA AKIRA , SUGIUCHI MASAMI , OKUYAMA TETSUO
IPC分类号： G02F1/13 , G02F1/1333 , G02F1/137
摘要： PURPOSE:To provide a recording medium with which stable recording and erasing characteristics and memory characteristics are obtd., the display part can be solidified, excellent mechanical strength such as wear resistance is obtd., and fast recording and erasing rate can be obtd. CONSTITUTION:A composite layer 13 produced by dispersing a cholesteric polymer liquid crystal and a low mol.wt. liquid crystal in a polymer matrix, and a pyroelectric layer 14 are interposed between a pair of electrodes facing to each other. For erasing, a high frequency electric field is applied to orient the low mol.wt. liquid crystal in the composite layer 13 so that the layer is changed into transparent. For recording, a low frequency electric field caused by the pyroelectric effect produced by rapid temp. change is applied to disturb the orientation in the cholesteric polymer liquid crystal in the composite layer 13 so that the layer is changed into white.

3. 发明专利

JPH04355764A ELECTROPHOTOGRAPHIC SENSITIVE BODY 失效
公开(公告)号：JPH04355764A
公开(公告)日：1992-12-09
申请号：JP13133091
申请日：1991-06-03
申请人： TOSHIBA CORP
发明人： SUGIUCHI MASAMI , TSUNEMI KOICHI
IPC分类号： G03G5/047
摘要： PURPOSE:To obtain superior photosensitivity, electric charging characteristics, and stable residual potential characteristics by reducing the halogen content in a photosensitive layer to a specified value or less. CONSTITUTION:The electrophotographic sensitive body is provided with a conductive substrate and the photosensitive layer formed thereon, and the photosensitive layer contains halogen in an amount of

4. 发明专利

JPH0333647A METHOD FOR MEASURING CARRIER INJECTION EFFICIENCY 失效
公开(公告)号：JPH0333647A
公开(公告)日：1991-02-13
申请号：JP16905489
申请日：1989-06-30
申请人： TOSHIBA CORP
发明人： NISHIZAWA HIDEYUKI , NAKAJIMA YUKO , SUGIUCHI MASAMI
IPC分类号： G01N27/00
摘要： PURPOSE:To prevent the reception of the effect of the trap in a charge transport layer by applying an electric field having specific intensity to a lamination type sample consisting of a charge forming layer and a charge transport layer and also irradiating said sample with light. CONSTITUTION:The sample to which an electric field having predetermined intensity is applied from a high voltage pulse generator 3 by a high voltage pulse is irradiated with the light pulse 4 from a light source 5 excited by the light trigger from a timing controller 6. The transient photocurrent generated by said light pulse 4 and attenuated with the elapse of time is amplified by an amplifier 7 and the waveform thereof is recorded on a recorder 8 and also analyzed by a computer 9. A series of these measurements are performed while the intensity of an electric field is changed and the waveforms of the respective photocurrents obtained at that time are recorded and also analyzed and the initial value of a photocurrent obtained when an electric field having intensity sufficient to saturate the carrier forming efficiency of a charge forming layer or more is applied is measured to make it possible to calculate carrier injection efficiency.

5. 发明专利

JPS6474551A ELECTROPHOTOGRAPHIC SENSITIVE BODY 失效
公开(公告)号：JPS6474551A
公开(公告)日：1989-03-20
申请号：JP23102187
申请日：1987-09-17
申请人： TOSHIBA CORP
发明人： NAKAJIMA YUKO , SUGIUCHI MASAMI , SANO KENJI
IPC分类号： G03G5/06
摘要： PURPOSE:To provide the titled body with the excellent flexibility, optical sensitivity, electric charge characteristic and residual voltage characteristic by incorporating at least one kind of a substd. ethylenic compd. which contains more trans isomer than cis isomer and is shown by a specified formula, in a photosensitive layer of the titled body, as an electric charge transfer compd. CONSTITUTION:In the titled body provided with the photosensitive layer mounted on an electron conductive supporting body, as the substd. ethylenic compd. which contains more trans isomer than cis isomer is excellent in the charge transfer property, said compd. is incorporated in the photosensitive layer. Namely, at least one kind of said substd. ethylenic compd. shown by the formula is incorporated in the photosensitive layer. In the formula, R1 and R2 are each alkyl, aryl, aralkyl or a condensed polycyclic heterocyclic ring group which may be substd., or hydrogen or halogen atom or cyano group, R3 and R4 are each alkyl, aryl, aralkyl or a condensed polycyclic heterocyclic ring group which may be substd. wherein R1 and R3, and R2 and R4 each are not the same group with each other.

6. 发明专利

JPS63174053A ELECTROPHOTOGRAPHIC SENSITIVE BODY 失效
公开(公告)号：JPS63174053A
公开(公告)日：1988-07-18
申请号：JP492587
申请日：1987-01-14
申请人： TOSHIBA CORP
发明人： NAKAJIMA YUKO , SUGIUCHI MASAMI
IPC分类号： G03G5/05 , G03G5/06
摘要： PURPOSE:To improve the electrification and the sensitivity of the positive charge photosensitive body by incorporating a specific triphenylmethane and a hydrazone compd. to a photosensitive layer used a phthalocyanine material. CONSTITUTION:The triphenylmethane (B) shown by formula I and the hydrazone compd. (C) shown by formula II are incorporated to the photosensitive layer used the phthalocyanine type electric charge generating material (A). In formula I, R1-R4 are each H atom or 1-8C alkyl group, etc., R5 and R6 are each H atom or OH group, etc., R7 is H atom or alkoxy group, etc. In formula II, R1 is H atom, a (substd.)alkyl group, etc., R2 is a (substd.)aryl or aralkyl group, etc., R3 is a (substd.)aryl or alkyl group, etc., R4 is a (substd.)heterocyclic ring group. And, the titled photosensitive layer can be formed by incorporating the components B and C to a dispersion of the component A (for example, epsilon-copper phthalocyanine) or by incorporating the component A and at least the component B to an electric charge generating layer, and at least the component C to an electric charge transferring layer, respectively.

7. 发明专利

JPS63163827A ORGANIC NONLINEAR OPTICAL MATERIAL 失效
公开(公告)号：JPS63163827A
公开(公告)日：1988-07-07
申请号：JP31539386
申请日：1986-12-26
申请人： TOSHIBA CORP
发明人： MORI YASUSHI , SUGIUCHI MASAMI
IPC分类号： C07D209/86 , C07C67/00 , C07C241/00 , C07C251/76 , C07C251/80 , C07C251/86 , C07C251/88 , C07D239/42 , C07D239/84 , C07D277/80 , C07D307/81 , C07D317/60 , C07D333/20 , C07D403/12 , C07D405/12 , C07D409/12 , C07D417/12 , C07D521/00 , G02F1/35 , G02F1/355 , G02F1/361
摘要： PURPOSE:To obtain the titled material having an excellent nonlinearity and capable of generating effectively a multiplying wave by composing the titled material by a specific hydrazone compd. and a specific azido compd. or another compd. CONSTITUTION:The titled material is composed of the hydrazone compd. shown by formula I, and the azido compd. shown by formula II or the compd. shown by formula III. In the formulas, R1-R4 may be the same or the different with each other, and are each a nonsubstd. or a substd. heterocyclic ring group, etc., or hydrogen atom, but, R3 and R4 are not both hydrogen atom, R5-R8 may be the same or the different with each other, and are each a nonsubstd. or substd. heterocyclic ring, etc. or hydrogen atom, but R5 and R6 or R7 and R8 is not both hydrogen atom. Thus, the titled material has the excellent nonlinearity and can generate effectively the multiplying wave, and is applicable to the generation of higher harmonics and the fields of a high speed optical shutter and an optical bistability element, etc.

8. 发明专利

JPS62178266A ELECTROPHOTOGRAPHIC SENSITIVE BODY 失效
公开(公告)号：JPS62178266A
公开(公告)日：1987-08-05
申请号：JP2078386
申请日：1986-01-31
申请人： TOSHIBA CORP
发明人： SUGIUCHI MASAMI , NAKAJIMA YUKO
IPC分类号： G03G5/04 , G03G5/06
摘要： PURPOSE:To obtain a specific good photosensitive body by superposing one of a nonmetallic phthalocyanine and the deriv. thereof and specific metal-contg. phthalocyanine and the deriv. thereof as an electric charge generating layer on a conductive base and a specific hydrazone compd. as an electric charge transfer layer thereon. CONSTITUTION:The charge generating layer consisting of the compsn. contg. the nonmetallic phthalocyanine and the deriv. thereof or the metal-contg. phthalocyanine expressed by formula I and the deriv. thereof is formed on a brass plate. R is H, halogen, cyano group, nitro group, M is Cu, etc., A, B are halogen or O, X, Y are 0 if M is bivalent X=1, Y=0, if tervalent, X=Y=1 if quadrivalent, A is 0 and X=1, Y=0 in the case of V, Ti, A, B are O and X=Y=1 in the case of U. The charge transfer layer consisting of the hydrazone compd. expressed by formula IIa or IIb is superposed thereon. R1 is alkyl group of 1-6C, R2 is an atom or group selected from H, halogen, alkyl group of 1-3C, alkoxy group of 1-3C, OH group, nitro group, amino group, substd. amino group, R3 is an alkyl group of 1-4C, aral group or phenyl group which may be substd.

9. 发明专利

JPS62961A PRODUCTION OF ELECTROPHOTOGRAPHIC SENSITIVE BODY 失效
公开(公告)号：JPS62961A
公开(公告)日：1987-01-06
申请号：JP13914085
申请日：1985-06-27
申请人： TOSHIBA CORP
发明人： OKAMOTO MASAYOSHI , NAKAJIMA YUKO , SUGIUCHI MASAMI
IPC分类号： G03G5/00 , G03G5/043 , G03G5/05
摘要： PURPOSE:To form a uniform charge generating layer having high accuracy in thickness by dissolving a charge generating substance in an org. solvent to prepare a soln., dropping the soln. on an aqueous phase to form a thin film, applying pressure to the thin film by a proper means, and using the resulting Langmuir-Blodgett film. CONSTITUTION:A charge generating substance is dissolved in an org. solvent to prepare a soln., this soln. is dropped on an aqueous phase to form a thin film, and pressure is applied to the thin film. The resulting Langmuir-Blodgett film is transferred to an electrically conductive support to form a charge generating layer and a charge transferring layer is formed on the charge generating layer. It is necessary that the charge generating substance is dissolved in the org. solvent and can form a monomolecular film on the aqueous phase. A uniform charge generating layer having high accuracy in thickness can be formed by using the Langmuir-Blodgett film, so an electrophotographic sensitive body having high sensitivity and giving a uniform image can be produced.

10. 发明专利

JPS61217049A ELECTROPHOTOGRAPHIC SENSITIVE BODY 失效
公开(公告)号：JPS61217049A
公开(公告)日：1986-09-26
申请号：JP5601385
申请日：1985-03-22
申请人： TOSHIBA CORP
发明人： SUGIUCHI MASAMI , NAKAJIMA YUKO
IPC分类号： G03G5/04 , G03G5/06
摘要： PURPOSE:To obtain an electrophotographic sensitive body having superior electrostatic chargeability, photosensitivity and residual potential characteristics and undergoing little deterioration in the characteristics by repeated use by incorporating a specified bisazo pigment into a charge generating layer and a specified hydrazone compound into a charge transferring layer. CONSTITUTION:A compound represented by formula I [where X is H, Cl, CH3 or OCH3, A is a group represented by formula II or III, B is a group represented by formula, IV, V or VI, R1 is H, Cl, CH3, OCH3 or NO2, n=1-3, and Z is 1-3C alkyl or ester represented by a formula -COOR (R is 1-3C alkyl)] is incorporated into a charge generating layer. A compound represented by formula VII [where R2 is H, 1-3C alkyl, 1-3C alkoxy, halogen or (substituted) amino, n=1-5, in case of n>=2, the groups R2 may be different from each other, and R3 is alkyl] is incorporated into the charge transferring layer. A laminated photoconductive layer consisting of the charge generating and transferring layers is formed on an electrically conductive support to obtain an electrophotographic sensitive body having superior fatigue resistance and undergoing little change in the characteristics even in environment in which heat or ozone is generated.

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