Patent application number | Description | Published |
20110200926 | ELECTROPHOTOGRAPHIC PHOTOCONDUCTOR, IMAGE FORMING METHOD, IMAGE FORMING APPARATUS, AND PROCESS CARTRIDGE - An electrophotographic photoconductor including a layer comprising a cross-linked hardened material of a compound A with a compound B. Each of the compounds A and B has at least two alcohol groups, at least one of the compounds A and B has at least two methylol groups, at least one of the compounds A and B has at least three alcohol groups, and at least one of the compounds A and B has a charge transportable group. In other words, the compound A has X methylol groups, X being an integer of 2 or more, the compound B has Y alcohol groups, Y being an integer of 2 or more, at least one of the compounds A and B has a charge transportable group, and the following relations are satisfied:
| 08-18-2011 |
20120028179 | ELECTROPHOTOGRAPHIC PHOTORECEPTOR, IMAGE FORMING METHOD, IMAGE FORMING APPARATUS, AND PROCESS CARTRIDGE FOR IMAGE FORMING APPARATUS USING THE PHOTORECEPTOR - An electrophotographic photoreceptor, including an electroconductive substrate; a charge generation layer; a hole transport layer; and a hole transportable protection layer being a three-dimensional crosslinked film formed by irradiating at least a radical polymerizable hole transportable compound with UV to be chain-polymerized, layered in this order, wherein the hole transportable protection layer comprises a silole compound having the following formula (1): | 02-02-2012 |
20120064444 | IMAGE BEARING MEMBER - An image bearing member including an electroconductive substrate, a photosensitive layer provided overlying the electroconductive substrate, and a furan derivative represented by the following chemical structure 1, | 03-15-2012 |
20120087695 | ELECTROPHOTOGRAPHIC PHOTORECEPTOR, AND IMAGE FORMING METHOD, IMAGE FORMING APPARATUS AND PROCESS CARTRIDGE USING SAME - An electrophotographic photoreceptor including an electroconductive substrate, a charge generation layer located overlying the electroconductive substrate, a hole transport layer located on the charge generation layer, and a hole transport protective layer located on the hole transport layer. The hole transport protective layer includes a three-dimensionally crosslinked material obtained by irradiating a composition including at least a radically polymerizable hole transport compound with ultraviolet rays or electron beams so that the radically polymerizable hole transport compound causes chain polymerization. In addition, the protective layer includes a specific cyano-containing styryl aromatic compound or a specific cyano-containing distyryl aromatic compound. | 04-12-2012 |
20120171601 | FURAN DERIVATIVE AND ELECTROPHOTOGRAPHIC PHOTOCONDUCTOR - A furan derivative represented by the following General Formula ( | 07-05-2012 |
20130022903 | PHOTORECEPTOR AND IMAGE FORMING METHOD, IMAGE FORMING APPARATUS, AND PROCESS CARTRIDGE USING THE PHOTORECEPTOR - A photoreceptor including an electroconductive substrate; and a photosensitive layer overlying the electroconductive substrate, wherein the uppermost surface layer of the photosensitive layer has a three-dimensional cross-linked product formed by polymerization reaction of a charge transport compound A represented by the following Chemical Structure 1 and a charge transport compound B having three or more [tetrahydro-2H-pyran-2-yl)oxy]methyl groups linked with aromatic rings in which part of the [tetrahydro-2H-pyran-2-yl)oxy]methyl groups is severed and detached. | 01-24-2013 |
20130122409 | ELECTROPHOTOGRAPHIC PHOTOCONDUCTOR, IMAGE FORMING APPARATUS, AND PROCESS CARTRIDGE - An electrophotographic photoconductor including: an electrically conductive substrate; and at least a photoconductive layer on the electrically conductive substrate, wherein the electrophotographic photoconductor includes an uppermost surface layer, and the uppermost surface layer includes an inorganic filler, an acidic disperser and a three-dimensionally crosslinked polymer, wherein the three-dimensionally crosslinked polymer is formed through polymerization among compounds each containing a charge transporting compound and three or more [(tetrahydro- | 05-16-2013 |
20130122410 | ELECTROPHOTOGRAPHIC PHOTOCONDUCTOR, AND IMAGE FORMING METHOD, IMAGE FORMING APPARATUS, AND PROCESS CARTRIDGE FOR IMAGE FORMING APPARATUS USING THE ELCTROPHOTOGRAPHIC PHOTOCONDUCTOR - An electrophotographic photoconductor including a conductive support, a charge generating layer, a hole transporting layer, and a hole transporting-protective layer, these layers being laminated in this order on the conductive support, wherein the hole transporting-protective layer contains a three-dimensionally crosslinked product which is obtained through chain polymerization of at least a radical polymerizable hole-transporting compound by irradiating the radical polymerizable hole-transporting compound with an active energy beam, and wherein the hole transporting-protective layer contains an oxazole compound represented by General Formula (1) or (2) below: | 05-16-2013 |
20130177842 | ELECTROPHOTOGRAPHIC PHOTOCONDUCTOR, IMAGE FORMING METHOD, IMAGE FORMING APPARATUS, AND PROCESS CARTRIDGE - To provide an electrophotographic photoconductor, which contains a layer containing a cured product obtained by crosslinking (i) a compound containing a charge-transporting group and three or more methylol groups, and (ii) a compound containing a charge-transporting group, which is other than the compound containing a charge-transporting group and three or more methylol groups. | 07-11-2013 |
20130295496 | ELECTROPHOTOGRAPHIC PHOTOCONDUCTOR, AND IMAGE FORMING METHOD, IMAGE FORMING APPARATUS, AND PROCESS CARTRIDGE USING THE ELECTROPHOTOGRAPHIC PHOTOCONDUCTOR - An electrophotographic photoconductor including: a conductive substrate; and at least a photoconductive layer on the conductive substrate, wherein an uppermost surface layer of the photoconductive layer includes a three-dimensionally crosslinked film formed through polymerization among compounds each containing a charge transporting compound and three or more [(tetrahydro-2H-pyran-2-yl)oxy]methyl groups where the charge transporting compound has one or more aromatic rings and the [(tetrahydro-2H-pyran-2-yl)oxy]methyl groups are bound to the aromatic rings of the charge transporting compound, wherein the polymerization starts after some of the [(tetrahydro-2H-pyran-2-yl)oxy]methyl groups have been partially cleaved and eliminated, and wherein the three-dimensionally cross-linked film has an ionization potential of 5.4 or higher. | 11-07-2013 |
20130295497 | ELECTROPHOTOGRAPHIC PHOTOCONDUCTOR, IMAGE FORMING METHOD, IMAGE FORMING APPARATUS, AND PROCESS CARTRIDGE - An electrophotographic photoconductor including: a conductive substrate; and at least a photoconductive layer on the conductive substrate, wherein an uppermost surface layer of the photoconductive layer includes a three-dimensionally crosslinked film formed through polymerization among compounds each containing a charge transporting compound and three or more [(tetrahydro-2H-pyran-2-yl)oxy]methyl groups where the charge transporting compound has one or more aromatic rings and the [(tetrahydro-2H-pyran-2-yl)oxy]methyl groups are bound to the aromatic rings of the charge transporting compound, wherein the polymerization starts after some of the [(tetrahydro-2H-pyran-2-yl)oxy]methyl groups have been partially cleaved and eliminated, and wherein the three-dimensionally crosslinked film has a dielectric constant of lower than 3.5. | 11-07-2013 |
20140092180 | INK COMPOSITION, RECORDING METHOD, PRINTED MATTER, INK CARTRIDGE, AND INKJET RECORDING DEVICE - An ink composition contains a pigment represented by the following chemical formula 1; a hydrosoluble solvent; and water, wherein the pigment satisfies the following relation 1: 0.04004-03-2014 | |
20140120331 | INK FOR INKJET RECORDING - An ink for inkjet recording includes water, a water-soluble solvent, a pigment and a copolymer including a salt of phosphonic acid group. The copolymer including a salt of phosphonic acid group includes structural units having the following formulae (1) and (2) or (3): | 05-01-2014 |
20140141209 | INK FOR INKJET RECORDING, AND INK CARTRIDGE, INKJET RECORDING METHOD, INKJET RECORDER AND INK-RECORDER MATTER USING THE INK - An ink for inkjet recording includes water; a water-soluble solvent; a pigment; and a copolymer including a salt of phosphonic acid group. The copolymer including a salt of phosphonic acid group includes structural units having the following formulae (1) and (2): | 05-22-2014 |
20140178810 | IMAGE BEARING MEMBER, MANUFACTURING METHOD OF THE SAME, IMAGE FORMING METHOD, IMAGE FORMING APPARATUS, AND PROCESS CARTRIDGE - An image bearing member includes a substrate, and a photosensitive layer overlying the substrate, wherein an uppermost surface layer of the image bearing member has a hydrocarbon compound represented by the following Chemical Formula 1; and a three-dimensionally cross-linked polymer formed by polymerization reaction of a charge transport compound having three or more [tetrahydro-2H-pyran-2-yl)oxy]methyl groups linked with aromatic rings, wherein, in the polymerization reaction, part of the three or more [(tetrahydro-2H-pyran-2-yl)oxy]methyl groups is severed and detached from the charge transport compound, | 06-26-2014 |
20140199530 | INK FOR INKJET RECORDING, AND INK CARTRIDGE, INKJET RECORDING METHOD, INKJET RECORDER, INK-RECORDED MATTER AND METHOD OF PRODUCING THE INK-RECORDED MATTER USING THE INK - An ink for inkjet recording, which is used for recording on a paper having a concentration of an eluted Ca ion of from 1.0×10 | 07-17-2014 |
20140242352 | INKJET INK, INK STORAGE CONTAINER, INKJET RECORDING DEVICE, AND RECORDED MATTER - An inkjet ink that contains at least water; a water-soluble organic solvent; a pigment; and a copolymer or a salt thereof. The copolymer or the salt thereof has at least a structural unit represented by Formula 1, a structural unit represented by Formula 2, and a structural unit represented by Formula 3 or 4. | 08-28-2014 |
20140267516 | INKJET RECORDING INK AND INK CARTRIDGE USING THE INK, INKJET RECORDING APPARATUS, INKJET RECORDING METHOD AND INK RECORDING MATTER - An inkjet recording ink, including: water; a water-soluble solvent; a pigment; and a phosphate group-containing copolymer, wherein the phosphate group-containing copolymer includes a structural unit represented by the following general formula (1) and a structural unit represented by the following general formula (2): | 09-18-2014 |
20140275401 | INKJET RECORDING INK AND INK CARTRIDGE USING THE INK, INKJET RECORDING APPARATUS, INKJET RECORDING METHOD AND INK RECORDED MATTER - An inkjet recording ink, including: water; a water-soluble solvent; a pigment; and a phosphate group-containing copolymer, wherein the phosphate group-containing copolymer includes a structural unit represented by the following general formula (1) and a structural unit represented by the following structural formula (1): | 09-18-2014 |
20150056425 | INK FOR INKJET RECORDING - An ink for inkjet recording includes water; a hydrosoluble solvent, a pigment, and a copolymer including a salt of a diphosphonic acid group. The copolymer including a salt of a diphosphonic acid group includes structural units having the following formulae (1) and (2): | 02-26-2015 |
20150064418 | INK COMPOSITION, INK CARTRIDGE, INKJET RECORDING DEVICE, AND INKJET PRINTED MATTER - An ink composition contains a pigment; a copolymer containing a phosphoric acid group or phosphonic acid group; a hydrosoluble solvent; and water, wherein the pigment is represented by the following chemical formula 1 and satisfies the following relation 1: Y03-05-2015 | |
20150064425 | INK COMPOSITION, INK CARTRIDGE, INKJET RECORDING DEVICE, AND INKJET PRINTED MATTER - An ink composition contains a pigment; a copolymer comprising a phosphoric acid group or phosphonic acid group; a hydrosoluble solvent; and water, wherein the pigment is represented by the following chemical formula 1 and satisfies the following relation 1: | 03-05-2015 |
20150109382 | INK FOR INKJET RECORDING, INK CONTAINER, INKJET RECORDER AND RECORDED MATTER - An ink for inkjet recording includes water; a hydrosoluble organic solvent; a pigment; and a polymer including a first structural unit represented by the following formula (1): | 04-23-2015 |
20150116421 | INKJET RECORDING INK, INK CARTRIDGE USING THE INK, AND INKJET RECORDING DEVICE USING THE INK - An inkjet recording ink, including: water; a water-soluble solvent; a pigment; and a phosphoric acid group-containing copolymer,
| 04-30-2015 |
20150125672 | INK FOR INKJET RECORDING, AND INK CARTRIDGE, INKJET RECORDING METHOD, INKJET RECORDER, INK-RECORDED MATTER AND METHOD OF PRODUCING THE INK-RECORDED MATTER USING THE INK - An ink for inkjet recording, which is used for recording on a paper having a concentration of an eluted Ca ion of from 1.0×10 | 05-07-2015 |
Patent application number | Description | Published |
20100220412 | MANUFACTURING METHOD OF DISK DRIVE DEVICE CAPABLE OF REDUCING AMOUNT OF UNBALANCE, DISK DRIVE DEVICE AND SUBASSEMBLY THEREOF - A disk drive device is provided with a recording disk, a base member, a bearing unit, and a hub member. In a marking step, unbalance information indicating the displacement of the center of gravity of the hub member with respect to the rotation center of the hub member is acquired, and an information mark containing the unbalance information is applied to at least the hub member or the base member. In an installing and adjustment step, the unbalance information is read form the information mark, and the position for installing the recording disk in an outer cylinder part is determined in accordance with the unbalance information so as to install the recording disk on the hub member. | 09-02-2010 |
20110096437 | DISK DRIVE DEVICE HAVING A LAMINATED CORE - In A disk drive device, a magnetic recording disk is to be mounted on a hub. A base plate rotatably supports the hub through a bearing unit. A projecting portion is formed on the upper surface of the base plate. The projecting portion has a cylindrical side surface, the center of which being along the rotational axis of the motor. A laminated core is formed by laminating eight magnetic steel sheets and has a ring portion and a plurality of teeth that extend radially from the ring portion. The disk drive device has a tubular vibration-deadening ring. The outer surface of the vibration-deadening ring is press-fitted into the ring portion, and the inner surface is fixed to the side surface of the projecting portion. The outer surface of the vibration-deadening ring is pressed against the ring portion at least at a position closer, in the direction along the rotational axis of the motor, to the upper surface of the laminated core than to the lower surface of the laminated core. | 04-28-2011 |
20110304238 | ROTATING MACHINE PROVIDED WITH STATOR CORE - A recording disk is to be mounted on a hub. A base rotatably supports the hub through a bearing. A stator core is fixed to the base and includes an annular portion and a salient pole extending radially therefrom. A magnet faces the salient pole radially and is rotated with the hub. The magnet has a plurality of magnetic poles in the circumferential direction such that each of the plurality of magnetic poles faces the salient pole. The salient pole includes a rod-shaped body around which a wire is wound and a tooth portion that is provided radially outside the rod-shaped body and extends circumferentially. The circumferential end located at the end in the circumferential direction of the tooth portion is located radially inside a circumscribed circle passing through the tip located at the radially outermost end of the tooth portion. | 12-15-2011 |
20130077462 | MANUFACTURING METHOD OF DISK DRIVE DEVICE CAPABLE OF REDUCING AMOUNT OF UNBALANCE, DISK DRIVE DEVICE AND SUBASSEMBLY THEREOF - A disk drive device is provided with a recording disk, a base member, a bearing unit, and a hub member. In a marking step, unbalance information indicating the displacement of the center of gravity of the hub member with respect to the rotation center of the hub member is acquired, and an information mark containing the unbalance information is applied to at least the hub member or the base member. In an installing and adjustment step, the unbalance information is read form the information mark, and the position for installing the recording disk in an outer cylinder part is determined in accordance with the unbalance information so as to install the recording disk on the hub member. | 03-28-2013 |
20130216168 | ROTATING DEVICE - A rotating device comprises a hub, a shaft, and a bearing unit. The bearing unit includes a surrounding portion arranged to surround the shaft, and a facing portion arranged to face an end of the shaft. A gap between the shaft and the surrounding portion includes two dynamic pressure generation portions and an intermediate portion arranged between the two dynamic pressure generation portions. The bearing unit further includes a path of a lubricant arranged to connect one side of one dynamic pressure generation portion and the intermediate portion. The shaft and the bearing unit are arranged so that the lubricant pushed out of the other dynamic pressure generation portion towards a gap between the end of the shaft and the facing portion stays in the gap. | 08-22-2013 |
20130222946 | DISK DRIVE DEVICE HAVING A VIBRATION-REDUCING ELEMENT - In a disk drive device, a magnetic recording disk is to be mounted on a hub. A base plate rotatably supports the hub through a bearing unit. A projecting portion is formed on the upper surface of the base plate having a cylindrical side surface centered along the rotational axis of the motor. A laminated core is formed by laminating magnetic steel sheets and has a ring portion and a plurality of teeth radially extending from the ring portion. The disk drive device has a tubular vibration-deadening ring. The outer surface of the vibration-deadening ring is press-fitted into the ring portion at least at a position, along the motor's rotational axis, closer to the upper surface than to the lower surface of the laminated core; and the inner surface of the vibration-deadening ring is fixed to the side surface of the projecting portion. | 08-29-2013 |
20140111885 | ROTATING DEVICE - A rotating device is provided with: a hub that is rotatably supported by the base and on which a recording disk is to be mounted; a yoke that is fixedly provided on the hub and is configured to hold a magnet; a bearing unit in which one end thereof is fixedly provided on the base and in which the other end thereof is configured to hold the hub; and a coil that is fixedly provided on the base and is configured to generate electromagnetic interaction with the magnet. The hub has a screw hole in which a screw for fixing a clamper, which is used to fix the recording disk to the hub, to the hub is screwed. The screw hole penetrates the hub. The yoke is configured such that the yoke covers one end of the screw hole. | 04-24-2014 |
20140146416 | ROTATING DEVICE - A rotating device includes a rotor including a hub to receive a recording disk, and a fixed body including a base that fixedly supports a bearing unit to rotatably support the rotor. The fixed body includes a core having a cylindrical part and salient poles extending in a radial direction, a ring-shaped member having a core holding part that has the core fixed to an outer peripheral surface thereof, a sloping part extending in a direction inclined with respect to a rotational axis of the rotor from a side of the core holding part farther away from the hub, and a support part extending from a side of the sloping part farther away from the hub. | 05-29-2014 |