序号 | 专利名 | 申请号 | 申请日 | 公开(公告)号 | 公开(公告)日 | 发明人 |
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1 | Verfahren und Vorrichtung zum Tonen einer Druckform aus ferroelektrischem Material | EP91108110.7 | 1991-05-18 | EP0458230B1 | 1996-06-19 | Staples, Phillip Eric; Lima-Marques, Luis |
2 | Verfahren und Vorrichtung zum Tonen einer Druckform aus ferroelektrischem Material | EP91108110.7 | 1991-05-18 | EP0458230A3 | 1993-08-25 | Staples, Phillip Eric; Lima-Marques, Luis |
Beim elektrostatischen Drucken wird ein elektrostatisches latentes Bild geschaffen, das elektrostatische Markierungsteilchen, die zusammen einen sogenannten Toner bilden, anzieht. Der Toner kann vom sogenannten trockenen Typ oder vom sogenannten flüssigen Typ sein. Beim flüssigen Typ liegt ein wesentliches Problem im Lösungsmittelaustrag, d.h. in der Menge von Lösungsmittel oder Trägerflüssigkeit, die im Papier festgehalten wird bzw. von der Tonerauftragvorrichtung mechanisch entfernt wird. Zur Reduzierung des Lösungsmittelaustrags wird erfindungsgemäß eine Vorrichtung vorgeschlagen, die einen ferroelektrischen Zylinder aufweist (11), um den herum eine Vorrichtung (1) zum Entwickeln des latenten Bildes (13) auf dem Zylinder (11) mit einem flüssigen Toner (3) und eine Vorrichtung zum elektrostatischen Obertragen des Toners vom ferroelektrischen Zylinder auf Papier (14) angeordnet ist. |
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3 | Reversible oder irreversible Erzeugung einer Abbildung | EP92102912.0 | 1992-02-21 | EP0501325B1 | 1997-07-16 | Bach, Volker, Dr.; Etzbach, Karl-Heinz, Dr.; Fuchs, Harald, Dr.; Siemensmeyer, Karl, Dr.; Wagenblast, Gerhard, Dr. |
4 | Reversible oder irreversible Erzeugung einer Abbildung | EP92102912.0 | 1992-02-21 | EP0501325A1 | 1992-09-02 | Bach, Volker, Dr.; Etzbach, Karl-Heinz, Dr.; Fuchs, Harald, Dr.; Siemensmeyer, Karl, Dr.; Wagenblast, Gerhard, Dr. |
Bei einem neuen Verfahren zur reversiblen oder irreversiblen Erzeugung einer Abbildung durch bildmäßiges Einwirken von Energie auf eine Aufzeichnungsschicht, wodurch auf der Oberfläche der Aufzeichnungsschicht ein der bildmäßigen Einwirkung der Energie entsprechendes Muster aus Oberflächenladungen resultiert, wird eine Aufzeichnungsschicht verwendet, welche
Das neue Verfahren wird vorteilhafterweise mit einem neuen Gerät durchgeführt, welches ein geeignetes Aufzeichnungselement, Vorrichtungen zur bildmäßigen Einwirkung eines elektrischen Feldes auf die Aufzeichnungsschicht des Aufzeichnungselements und eine Gegenelektrode, die in direktem, nicht kraftschlüssigem Kontakt mit der Aufzeichnungsschicht steht und hiervon wieder entfernt werden kann, umfaßt. Das nach dem neuen Verfahren erzeugte Muster aus Oberflächenladungen kann mit flüssigen oder festen Tonern betonert werden. Das resultierende Tonerbild kann dann entweder auf der Aufzeichnungsschicht fixiert werden oder von der Aufzeichnungsschicht auf eine andere Oberfläche übertragen werden, wonach das Muster aus Oberflächenladungen durch vollflächige Energieeinwirkung wieder gelöscht werden kann. Hiernach kann erneut eine Abbildung erzeugt werden. In dieser Weise können Photokopien hergestellt werden, ohne daß hierbei die bei den üblichen elektrophotographischen Verfahren notwendigen Hochspannungsquellen verwendet werden müssen. |
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5 | Verfahren und Vorrichtung zum Tonen einer Druckform aus ferroelektrischem Material | EP91108110.7 | 1991-05-18 | EP0458230A2 | 1991-11-27 | Staples, Phillip Eric; Lima-Marques, Luis |
Beim elektrostatischen Drucken wird ein elektrostatisches latentes Bild geschaffen, das elektrostatische Markierungsteilchen, die zusammen einen sogenannten Toner bilden, anzieht. Der Toner kann vom sogenannten trockenen Typ oder vom sogenannten flüssigen Typ sein. Beim flüssigen Typ liegt ein wesentliches Problem im Lösungsmittelaustrag, d.h. in der Menge von Lösungsmittel oder Trägerflüssigkeit, die im Papier festgehalten wird bzw. von der Tonerauftragvorrichtung mechanisch entfernt wird. Zur Reduzierung des Lösungsmittelaustrags wird erfindungsgemäß eine Vorrichtung vorgeschlagen, die einen ferroelektrischen Zylinder aufweist (11), um den herum eine Vorrichtung (1) zum Entwickeln des latenten Bildes (13) auf dem Zylinder (11) mit einem flüssigen Toner (3) und eine Vorrichtung zum elektrostatischen Obertragen des Toners vom ferroelektrischen Zylinder auf Papier (14) angeordnet ist. |
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6 | Reversible or irreversible production of an image | US975886 | 1992-11-13 | US5418555A | 1995-05-23 | Volker Bach; Karl-Heinz Etzbach; Harald Fuchs; Karl Siemensmeyer; Gehard Wagenblast |
In a novel process for the reversible or irreversible production of an image by the imagewise action of energy on a recording layer, resulting in a pattern of surface charges which corresponds to the imagewise action of the energy, on the surface of the recording layer, the recording layer used is one which contains or consists of an organic material which solidifies in glassy form, is nonphotoconductive or only slightly photoconductive and has permanent dipoles, wherein the pattern of surface charges is produced, without or almost without formation of free charge carriers, by reversible imagewise orientation of some or all of the permanent dipoles present in the recording layer, with the aid of an electric field applied imagewise. The novel process is advantageously carried out using a novel apparatus which comprises a suitable recording element, apparatus for the imagewise action of an electric field on the recording layer of the recording element and a counter-electrode which is in direct, non-frictional contact with the recording layer and can be removed again therefrom. The pattern of surface charges which is produced by the novel process can be treated with liquid or solid toners. The resulting toner image can then either be fixed on the recording layer or transferred from the recording layer to another surface, after which the pattern of surface charges can be deleted by uniform action of energy. Thereafter, a further image can be produced. In this way, it is possible to produce photocopies without the high voltage sources required in the conventional electrophotographic processes having to be used. | ||||||
7 | Image apparatus having a color separation function | US897730 | 1986-08-18 | US4734735A | 1988-03-29 | Satoshi Haneda |
An image forming apparatus wherein an image exposure device, a whole surface exposure device by light of specific colors and a developing device, are disposed facing a photosensitive member having a surface insulating layer and provided with a color separation function in its surface. In the developing device, the operating condition is changed according to image forming modes. By the combination of the whole surface exposure and development, from an original image in specific colors a visible image in other colors can be provided. | ||||||
8 | Pyroelectric element of polymer film | US41112273 | 1973-10-30 | US3872318A | 1975-03-18 | MURAYAMA NAOHIRO |
A pyroelectric element comprising a polymer film which can be converted into pyroelectric substance, the polymer film having a pyroelectric distribution along its surface. The process of producing such a film comprising: POLING DESIRED LOCAL PORTIONS OF THE FILM WHILE VARYING EITHER THE TEMPERATURE AND/OR THE ELECTRIC POTENTIAL OF LOCALIZED AREAS OF THE FILM; A FURTHER PROCESS OF PRODUCING SUCH A PYROELECTRIC ELEMENT WHEREIN A DEFINITE PYROELECTRICITY IS PROVIDED TO THE SURFACE OF THE POLYMER FILM AND THEN A NON-UNIFORM DISTRIBUTION OF PYROELECTRICITY IS PROVIDED BY LOCALLY REDUCING OR ELIMINATING THE PYROELECTRICITY; A PROCESS OF STORING AND REPRODUCING SIGNALS IN SUCH A PYROELECTRIC ELEMENT COMPRISING: STORING POLARIZATION SIGNALS OF DIFFERENT PYROELECTRICITIES IN DIFFERENT PORTIONS OF SUCH AN ELEMENT, AND THEN DELIVERING THE SIGNALS AS A POLARIZATION CHANGE DUE TO A TEMPERATURE CHANGE.
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9 | Electrode configuration for electrophotography | US3700436D | 1971-01-14 | US3700436A | 1972-10-24 | GRIER JOHN D |
A PERSISTENT INTERNAL POLARIZATION (PIP) ELECTROPHOTOGRAPHY PRINTING OR COPYING SYSTEM WHEREIN A PAIR OF OPPOSITE POLARITY ELECTRODES, EACH INCLUDING A PLURALITY OF ELEMENTS DISPOSED IN SPACED ARRAY ALTERNATING WITH EACH OTHER IN THE SAME PLANE, ARE UTILIZED IN A COMBINATION WITH A PIP LAYER SUCH THAT AN ELECTRIC FIELD MAY BE SIMULTANEOUSLY APPLIED TO THE PIP LAYER WHILE PERMITTING LIGHT RADIATION TO REACH THE PIP LAYER. IN THE SPECIFIC PRACTICE, THE PAIR OF ELECTRODES ARE POSITIONED ON TOP OF OR EMBEDDED IN THE SURFACE OF THE PIP LAYER WHICH IS TO BE TONED; THAT IS THE TOP SURFACE.
D R A W I N G |
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10 | Persistent internal polarization process in electrophotography | US3655369D | 1968-09-03 | US3655369A | 1972-04-11 | KINOSHITA KOICHI |
In a method of forming an electrostatic latent image wherein a first electric field of one polarity is applied across a perfectly insulated type photosensitive element or an element including a transparent highly insulative layer integrally bonded to a photoconductive layer and then a second field of the opposite polarity is applied concurrently with the projection of a light image onto one side, uniform light is irradiated upon the opposite side of the photosensitive element concurrently with or before or after application of the first field but before application of the second field to improve the image forming property.
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11 | Nonremovable discontinuous electrode for electrophotography | US3625682D | 1968-11-29 | US3625682A | 1971-12-07 | OSTER EUGENE A; ROSENBERG BARNETT |
D R A W I N G A PERSISTENT INTERNAL POLARIZATION (PIP) ELECTROPHOTOGRAPHY PRINTING OR COPYLING SYSTEM COMPRISING STATIONARY ELECTRODES WHICH ARE NOT REMOVED DURING DEVELOPMENT, AND WHEREIN AT LEAST ONE ELECTRODE IS OF A DISCONTINUOUS CONFIGURATION, SUCH AS A FORAMINOUS CONDUCTIVE MESH, WHICH IS EMBEDDED IN OR ATTACHED TO THE SURFACE OF THE PIP LAYER WHICH IS TO BE TONED (THE TOP LAYER), SUCH THAT AN ELECTRIC FIELD CAN BE APPLIED TO THE PIP LAYER WHILE PERMITTING RADIATION TO REACH THE PIP LAYER, AND WHEREBY TONING AND TRANSFER MAY BE ACCOMPLISHED WITHOUT REMOVING EITHER ELECTRODE. |
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12 | Electrode configuration for electrophotography | US3597073D | 1969-02-28 | US3597073A | 1971-08-03 | GRIER JOHN D; INC OWENS-ILLINOIS |
A persistent internal polarization (PIP) electrophotography printing or copying system wherein a pair of opposite polarity electrodes, each including a plurality of elements disposed in spaced array alternating with each other in the same plane, are utilized in combination with a PIP layer such that an electric field may be simultaneously applied to the PIP layer while permitting light radiation to reach the PIP layer. In the specific practice, the pair of electrodes are positioned on top of or embedded in the surface of the PIP layer which is to be toned; that is, the top surface.
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13 | Pip machine | US3575500D | 1966-03-16 | US3575500A | 1971-04-20 | SCHLEIN HERBERT N; BROWN FELIX H |
A copying machine whose operation utilizes the phenomenon known as ''''persistent internal polarization.'''' An image is impressed by exposing to an electric field during or after light exposure a photoconductive insulative body constructed so as to be capable of recording a latent image by persistent internal polarization. Development may be done by toner, and the developed image may be transferred to paper, as in xerographic reproduction.
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14 | Semiconductor device showing the effect of storing charges of single polarity | US35083364 | 1964-03-10 | US3307089A | 1967-02-28 | AKIO YAMASHITA |
15 | Method and apparatus for the reproduction of images | US59062156 | 1956-06-11 | US3000735A | 1961-09-19 | GUNNING HARRY E; FRANKLIN KELLER DANIEL |
16 | Image forming method and device using ferroelectric substance and image forming medium | JP2000392708 | 2000-12-25 | JP2001331022A | 2001-11-30 | NIHEI YASUKAZU |
PROBLEM TO BE SOLVED: To enhance reliability of image forming in an image forming method using a ferroelectric substance. SOLUTION: In this method for image forming, a polarization reversal pattern based on image information is formed on the ferroelectric substance 2, an electrostatic latent image is obtained by means of surface charge in accordance with the polarization reversal pattern and, therein, inorganic ferroelectric oxide such as LiNbxTa1-xO3 (0≤x≤1) is used as the ferroelectric substance 2. COPYRIGHT: (C)2001,JPO | ||||||
17 | Photosensitive body | JP5587988 | 1988-03-09 | JPH01229259A | 1989-09-12 | KANAI YUTAKA |
PURPOSE: To obtain stable printing having sufficiently sharp display at edges without being influenced by the fluctuation of output energy of a light source by laminating a switching layer consisting of a material which causes sudden change of electric resistance when an impressed voltage exceeds a threshold voltage, on a photoconductive layer on an electroconductive base body. CONSTITUTION: Light carriers are generated on a irradiated part alone of a photoconductive layer 3 when a photosensitive body 1 is charged uniformly and irradiated with a light pattern. Negative carriers are drifted to a switching layer side 4 and the positive carriers are drifted to an electroconductive base body side 2. In this case, when an electric voltage applied to the switching layer 4 having high resistance is increased gradually and exceeds a threshold value of the layer 4, the resistance of the layer 4 decreases suddenly to a low resistance, then an electrostatic latent image is formed by neutralizing a surface potential of the photosensitive body 1. Thus, a stable distribution of surface potential of the photosensitive body is obtd. without being influenced by the fluctuation of exposing energy, and a stable printing having sharp display of edges is attained. COPYRIGHT: (C)1989,JPO&Japio | ||||||
18 | Control method of electrophotographic photosensitive body | JP1763183 | 1983-02-04 | JPS59143165A | 1984-08-16 | OOSAWA MICHIO; HANABUSA AKIRA; ITOU ZENICHIROU; MOCHIZUKI MOTONORI; YOSHITANI YOSHIAKI |
PURPOSE:To copy an optional pattern after deciding the presence or absence of the toner attached by controlling the voltage of a grating electrode provided to a photosensitive body and therefore controlling the surface electric charge of the photosensitive body. CONSTITUTION:The uniform electric charge is stacked on the surface of a photosensitive body 2 by the corona discharge, and the conductivity of the body is increased at an exposed area. Then the surface electric charge is sent toward an Al substrate 1. The voltage of comb-shaped electrodes 4 and 5 set in (x) and (y) directions of a grating electrode 6 is set positive potential in a light irradiation mode. Therefore the positive charge of the surface corona discharge is inhibited from moving downward by the potential of the electrode 6 and stays on the surface of the body 2 even after irradiation of light. Then the toner is stuck to the area of the positive charge to perform a black print. While a white print is possible by securing the negative voltage at a prescribed part of the electrode 6. | ||||||
19 | JPS4910056B1 - | JP660370 | 1970-01-24 | JPS4910056B1 | 1974-03-08 | |
20 | OPTICAL APPARATUS AND IMAGE PICKUP APPARATUS | US15636750 | 2017-06-29 | US20180011239A1 | 2018-01-11 | Yutaka Yamaguchi |
An optical apparatus is configured to introduce light from an object to an image pickup element, and includes first, second, and third retardation plates, a polarizer, and a setter. The first retardation plate, the second retardation plate, and the polarizer are arranged in this order from a side of the object to a side of the image pickup element. The slow axis direction or the fast axis direction of the second retardation plate tilts to the slow axis direction or the fast axis direction of the first retardation plate. The setter sets the retardation of the second retardation plate according to the polarization component of the light from the object. |