| Patent Number |
Title Of Patent |
Date Issued |
| 4601965 |
Photosensitive material for use in electrophotography |
July 22, 1986 |
| A photosensitive material for use in electrophotography having a chargeability improved by incorporating 1 to 500 ppm As oxide in a Se-As (As: 20 to 40% by weight) system photosensitive layer. |
| 4600672 |
Electrophotographic element having an amorphous silicon photoconductor |
July 15, 1986 |
| An electrophotographic element which comprises forming, on an electrically conductive substrate, an intermediate layer designed to function so that carriers homopolar with those injected from said substrate at the time of charging may become majority carrier, and forming, on said interme |
| 4600625 |
Optical information recording medium |
July 15, 1986 |
| An optical information recording medium being capable of writing and reading with laser beam which comprises forming, on a transparent or opaque substrate, a thin film (recording layer) containing a cyanine coloring matter represented by the general formula: ##STR1## (wherein, R. |
| 4600290 |
Magnetic brush/stationary electrode development system |
July 15, 1986 |
| An electrophotographic copying apparatus is disclosed, including a first rotating cylindrical electrode positioned above the lowest point of rotation of the photoconductive surface and closely adjacent that surface. This first electrode is suitably biased to form a brush of toner which, |
| 4597572 |
Original supply apparatus for use in copying machine |
July 1, 1986 |
| An original supply apparatus for use in a copying machine of such a type that an original supplied automatically on a contact glass is located on the basis of one side edge of the contact glass, wherein a carrier roller provided on the upper surface of the contact glass is designed to be |
| 4589579 |
Toner vessel for copying machine |
May 20, 1986 |
| A toner vessel for use in a copying machine includes a square dish-shaped vessel body which is opened at the upper part, is provided with an outwardly projecting flange at the peripheral edge of said opening and receives the toner therein. The opening of the vessel body is covered with |
| 4582771 |
Disazo compound, method for preparing the same, and electrophotographic element containing the s |
April 15, 1986 |
| This invention relates to a disazo compound, a method for producing said disazo compound and an electrophotographic element containing said disazo compound, said disazo compound has the general formula (I), ##STR1## wherein Y represents a substituted or non-substituted cyclic hydroca |
| 4580152 |
Heat sensitive transfer method |
April 1, 1986 |
| The present invention is directed towards a method for carrying out heat sensitive transfer which comprises using a transfer sheet having a leuco dye-containing transfer layer and a receiving sheet having a receiving layer containing a bisphenol-system compound and a porous filler whose |
| 4580143 |
Viscosity control of ink-jet inks |
April 1, 1986 |
| A method is provided for maintaining the viscosity of a consumable water-containing ink supply at a constant value by measuring water vapor content of the vapor in equilibrium with the ink supply and adding a sufficient amount of water to restore the water vapor content to a predeter |
| 4574369 |
Tracking/focusing device for positioning an optical lens unit |
March 4, 1986 |
| An optical disc player/recorder includes a composite coil device for controlling both tracking and focusing functions of a moveable objective lens unit. A bobbin having orthogonal coils is supported by spring members and holds the objective lens. A magnetic gap field intersects both coil |
| 4568949 |
Thermal transfer printer with improved adhesion of colored material spots to the record medium |
February 4, 1986 |
| A thermal transfer printer including a printhead having a plurality of individually energizable thermal elements arranged in a primary scanning direction, wherein a carrier sheet bearing a plurality of different color record-forming materials arranged on discrete surface portions located |
| 4567124 |
Electrophotographic element with trisazo photoconductor and an amine substituted charge transfer |
January 28, 1986 |
| The present invention provides an multilayer type electrophotographic element comprising laminating a charge generating layer containing a trisazo pigment represented by the general formula (1) on an electrically conductive substrate: ##STR1## (wherein, R denotes ##STR2## |
| 4565759 |
Plates for use in lithographic printing |
January 21, 1986 |
| A plate for use in lithographic printing which comprises providing a photoconductive layer on an electrically conductive substrate and further providing thereon a surface layer (a hydrophilicable layer) consisting essentially of a reaction product of a resin having an acid anhydride |
| 4562448 |
Heat-sensitive transfer medium |
December 31, 1985 |
| A heat-sensitive transfer medium of this invention comprises the combination of a transfer sheet which has on one surface of a substrate a transfer layer consisted essentially of a leuco dye and a binder resin and is provided on its opposite surface with a 0.2-5 .mu.m-thick polyfluor |
| 4555567 |
2,6-Disazo anthraquinone compounds |
November 26, 1985 |
| A disazo compound having the general formula (1) ##STR1## (wherein X represents a substituted or unsubstituted aromatic ring or hetero ring, and Ar represents a substituted or unsubstituted aromatic ring or hetero ring);a method of making said disazo compound which comprises using, a |
| 4552475 |
Printer carriage and hammer assembly |
November 12, 1985 |
| A printer having a type wheel of the daisy wheel type or the like, which is improved to permit an easy position adjustment of constituents of the type wheel driving mechanism, as well as an easy tilting motion of the carriage in relation to the carrier and an easy attaching of the carria |
| 4540643 |
Tetrazonium salt compounds, novel disazo compounds, method for the production thereof and disazo |
September 10, 1985 |
| The present invention provides a tetrazoneum salt compound represented by the general formula (I): ##STR1## (wherein, X stands for an anion functional group.); a disazo compound represented by the general formula (II): ##STR2## (wherein, R stands for an alkyl group, an alkoxy |
| 4538164 |
Heat-sensitive transfer medium |
August 27, 1985 |
| This invention relates to a heat-sensitive transfer medium comprising a transfer sheet having a transfer layer containing a leuco dye as the main component and a receiving sheet having a receiving layer containing a developer for said leuco dye as the main component, characterized in tha |
| 4537844 |
Electrophotographic element containing disazo compound |
August 27, 1985 |
| A novel disazo compound is provided which is represented by the general formula (I): ##STR1## (wherein, R.sub.1 and R.sub.2 each stands for hydrogen, a lower alkyl group with 1-4 carbon atoms, a substituted or unsubstituted aralkyl group, a substituted or unsubstituted aromatic g |
| 4529993 |
Heat sensitive transfer medium |
July 16, 1985 |
| The heat sensitive transfer medium according to the present invention is characterized in that it comprises a transfer sheet having a transfer layer consisted essentially of a leuco-dye color former and a receiving sheet having a receiving layer consisted essentially of a developer for |
| 4514483 |
Method for preparation of selenium type electrophotographic element in which the substrate is su |
April 30, 1985 |
| The present invention provides a method for preparing a selenium type electrophotographic element comprising the steps of processing the surface of an electrically conductive substrate which has a metal surface by vibrating and sliding a grindstone until a predetermined surface-roughness |
| 4513052 |
Heat-sensitive recording material |
April 23, 1985 |
| A heat-sensitive recording material comprising a support and a heat-sensitive color forming layer formed on said support that comprises a colorless or pale-color leuco dye and an acidic material capable of making said leuco dye develop color when heated, wherein said heat-sensitive c |
| 4512674 |
Printer cartridge and cartridge retaining means |
April 23, 1985 |
| A ribbon cartridge engageable with an upper stopper member of a cartridge receiving apparatus which includes a cartridge body of substantially U-shaped form having at least one front leg member and an engaging member extending from the at least one front leg member of the cartridge body |
| 4477555 |
Optical information recording medium |
October 16, 1984 |
| An optical information recording medium comprising a substrate and a recording layer superimposed on said substrate, said recording layer comprising a reflective layer in which metal particles with a particle diameter of 1500.ANG. or less have been distributed closely and a light abs |
| 4472048 |
Slit exposure optical system in electrophotographic copying machine |
September 18, 1984 |
| An optical system for directing a light image of a scanned original to a charged photosensitive surface of an electrophotographic copying apparatus, includes an imaging lens located between the original and the photosensitive surface. The optical axis of the imaging lens is directed |
| 4469771 |
Electrophotographic light-sensitive member with thin overlayer |
September 4, 1984 |
| Electrophotographic light-sensitive member having a protective coating on a photoconductive layer of the light-sensitive member, said protective coating consisting of an organic high polymer containing Lewis acid. |
| 4467024 |
Process for the production of thermo-developable type diazo copying material |
August 21, 1984 |
| A process for the production of a thermo-developable type diazo copying material which comprises the steps of adding a heat fusible color assistant having a melting point of 50.degree. to 150.degree. C. to at least one selected from the group consisting of (a) an aqueous dispersion A |
| 4460665 |
Optical information recording medium |
July 17, 1984 |
| An optical information recording medium comprises a transparent or opaque substrate and a cyanine coloring matter-containing thin coloring matter layer formed on said substrate. This recording material is adapted for laser beam reading and writing. |
| 4451545 |
Electrophotographic element with carbazole derivative |
May 29, 1984 |
| An electrophotographic element comprising an electrically conductive substrate and a photosensitive layer, superposed thereon, containing a carbazole derivative compound having the following general formula (I): ##STR1## (wherein R is a lower alkyl group or a benzyl group; X is a hyd |
| 4445124 |
Ink jet recording process |
April 24, 1984 |
| An ink jet recording process comprising jetting aqueous ink through a narrow nozzle, recovering the unused aqueous ink that has not reached the surface of an object to be recorded within an ink jet printer and then circulating it for re-use, characterized in that said aqueous ink is |
| 4444844 |
Thermosensitive recording material |
April 24, 1984 |
| A thermosensitive recording material which comprises employing a colorless or light-colored leuco-dye, a binder, a specified developer and a specified thermosensitivity promoter as principal components and incorporating them in a thermosensitive color forming layer. |
| 4440845 |
Disazo compound, method of making same and electrophotographic element using same |
April 3, 1984 |
| A disazo compound having the general formula (1) ##STR1## (wherein X represents a substituted or unsubstituted aromatic ring or hetero ring, and Ar represents a substituted or unsubstituted aromatic ring or hetero ring);a method of making said disazo compound which comprises using, a |
| 4439506 |
Multilayer electrophotographic element containing a trisazo charge carrier generating substance |
March 27, 1984 |
| An electrophotographic element comprising an electrically conductive substrate, a charge carrier generating layer and a charge transfer layer superimposed on said substrate, wherein said charge carrier generating layer contains a trisazo compound having the general formula (I): ##STR |
| 4438507 |
Input signal control device |
March 20, 1984 |
| An input signal control device for a printer in which a strobe pulse of one category and its associated input data are stored in a storage location identified by the same address; the succeeding strobe pulses and their associated data are sequentially stored in succeeding addresses in th |
| 4436800 |
Multilayer electrophotographic element containing a trisazo charge carrier generating substance |
March 13, 1984 |
| An electrophotographic element comprising an electrically conductive substrate, a charge carrier generating layer and a charge transfer layer superimposed on said substrate, wherein said charge carrier generating layer contains a trisazo compound having the general formula (I): ##STR |
| 4435064 |
Optical exposure unit for electrophotographic printing device |
March 6, 1984 |
| An electrophotographic printing device is provided with an exposure unit comprising light-emitting diodes which are light sources and means for transmitting the light beams emitted from the light-emitting diodes and converging or focusing them like converging lenses, whereby electrostati |
| 4432620 |
Lens motor drive device in automatic focusing camera |
February 21, 1984 |
| A lens motor drive in an automatic focusing camera, in which current corresponding to a degree of focalization of an optical system is supplied to a lens motor in which there is provided a signal forming circuit performing a focalization signal representing the focalization of the op |
| 4430402 |
Dichromatic electrophotography using two developer compositions applied sequentially |
February 7, 1984 |
| A two-component type dry developer for use in dichromatic electrophotography comprising two kinds of developers, said developers each consisting of a toner and a carrier therefor and adapted for the production of a dichromatic image by developing a both positively and negatively elec |
| 4426327 |
3,6-Disazo-9-ethyl carbazole compounds |
January 17, 1984 |
| The present invention provides disazo compounds expressed by the general formula ##STR1## [wherein A represents ##STR2## (wherein R represents alkyl radical, alkoxy radical, nitro radical, dialkylamino radical or halogen, n is 0 or an integer ranging from 1 to 3, and R ma |
| 4418136 |
Electrophotographic element comprises arsenic selenide doped with Bi |
November 29, 1983 |
| An electrophotographic element comprising a photoconductive layer consisting essentially of a Bi-containing As.sub.2 Se.sub.3 layer on an electrically conductive substrate. |
| 4416967 |
Diazo copying element |
November 22, 1983 |
| A one-component or binary type diazo copying element comprises a substrate, a pre-coat layer overlying the substrate, said pre-coat layer being consisted essentially of fine particle silica and a specific copolymer having a glass transition temperature in the range of -20.degree. C. to |
| 4415903 |
Electric ink transfer recording method |
November 15, 1983 |
| An electric ink transfer recording method for obtaining a recorded matter which comprises putting a sheet to be recorded and an ink sheet generating Joule's heat when electrified and having a thermo-melting ink layer together; applying electricity to said ink sheet by contacting a return |
| 4415533 |
Process for treating exhaust gas from electrophotographic machine and apparatus thereof |
November 15, 1983 |
| A process for treating exhaust gas from an electrophotographic machine which comprises oxidizing, in the presence of a heated oxidation catalyst, an odorous exhaust gas generated in course of the steps of developing an element being developed by means of a developer, transferring the thu |
| 4415241 |
Tessor type lens systems for facsimile |
November 15, 1983 |
| An improved tessor type lens system for facsimile having a large aperture ratio and a high contrast are provided. The lens system comprises for components between object and image as follows; a first positive meniscus lens element, a second biconcave lens element, a third meniscus shaped |
| 4408909 |
Printer with cartridge type wheel |
October 11, 1983 |
| A printer having a mechanism for easy loading of a type wheel rotatably supported by a type wheel cartridge. The type wheel cartridge can be inserted into or withdrawn from a cartridge holder by moving the type wheel cartridge in a direction perpendicular to the axis of the type wheel |
| 4400456 |
Thermo-developable type diazo copying material |
August 23, 1983 |
| A thermo-developable type diazo copying material is disclosed comprising a substrate and a photosensitive layer, formed thereon, consisting essentially of a diazo compound, a coupler and a color assistant, wherein said color assistant is at least a member selected from the group cons |
| 4399431 |
Alarm or warning device for signaling left-behind master or original |
August 16, 1983 |
| An alarm system for the copying machine for giving the audio or visual alarm signal when an operator leaves a copying machine without taking a master or original out of it after a copying operation. The alarm system includes a master detection means for detecting whether or not a master |
| 4394923 |
Threaded cap with inner plug |
July 26, 1983 |
| A bottle cap composed of a cap body and an inner plug to be fitted inside the cap body. The cap body has an annular groove in the upper part of the inner wall. The inner plug is provided, at the uppermost part of the pot-shaped plug body, with an outwardly extending annular radial flange |
| 4393452 |
Method of reproducing a picture having improved resolution |
July 12, 1983 |
| In a picture processing method, the density data of picture elements in a particular picture element region in a 4.times.4 arrangement which is provided by decomposing an original picture into a number of picture elements are subjected to n-base quantization to provide density levels |
| 4393385 |
Controllable ink drop velocity type ink-jet printer |
July 12, 1983 |
| Depending upon a position in a dot matrix where an ink drop is to be deposited, the velocity imparted to that ink drop is controlled. The ink drop is charged by a charge electrode impressed with a constant charging voltage and deflected by a pair of electrodes impressed with a constant |
