Patent application number | Description | Published |
20160056419 | NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY - A non-aqueous electrolyte secondary battery allows gas generated when an aqueous binder is used as a binder of a negative electrode active material to be effectively discharged from the electrode, and has small decrease of the battery capacity despite use over a long period of time. The non-aqueous electrolyte secondary battery has a positive electrode active material layer, a negative electrode active material layer, and a separator. The density of the negative electrode active material layer is 1.4 to 1.6 g/cm | 02-25-2016 |
20160056468 | NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY - A non-aqueous electrolyte secondary battery is capable of suppressing a reduction in the binding strength of a negative electrode active material layer by optimizing conditions for the suppression of gas generation and moisture removal when an aqueous binder and a thickening agent are used in the negative electrode active material layer. A negative electrode for the non-aqueous electrolyte secondary battery includes a negative electrode active material, an aqueous binder and a thickening agent having a hydroxyl group and an ester group. The content of the aqueous binder is 1 to 3% by mass relative to the total amount of the negative electrode active material layer, the content of the thickening agent is 0.5 to 1.5% by mass relative to the total amount of the negative electrode active material layer. The layer satisfies 0.10≦X≦1.00, X being a ratio of a peak intensity of an infrared absorption spectrum. | 02-25-2016 |
20160064715 | NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY - A non-aqueous electrolyte secondary battery can efficiently discharge a gas generated to the outside of an electrode and exhibits a low decrease in battery capacity even when used for a long period of time in the case of using an aqueous binder as a binder of a negative electrode active material. The non-aqueous electrolyte secondary battery includes a negative electrode active material layer on the surface of a negative electrode current collector, in which the negative electrode active material layer contains an aqueous binder, a highly porous layer having a porosity that is higher than that of the separator is provided between the negative electrode active material layer and the separator, the porosity of the highly porous layer being from 50 to 90%, and a ratio of a thickness of the highly porous layer to a thickness of the negative electrode active material layer being from 0.01 to 0.4. | 03-03-2016 |
Patent application number | Description | Published |
20140062366 | MOTOR UNIT - A rotation detector provided in a motor unit according to an embodiment includes a first support and a second support, a pair of magnetic field generator, at least one magnetic field detector, and a first magnetic member and a second magnetic member. The pair of magnetic field generator is provided on the first support in a manner facing the second support, and has opposite polarities. The magnetic field detector is formed by winding a coil around a magnetic element whose magnetized direction changes in the longitudinal direction, and is provided on the second support in such a manner that a longitudinal-direction side of the magnetic element faces the first support. Each of the first magnetic member and the second magnetic member is made of a magnetic material, and covers a longitudinal-direction end of the magnetic field detector facing the first support. | 03-06-2014 |
20140197823 | MOTOR UNIT - A rotation detector of a motor according to an embodiment includes a first support and a second support, a pair of magnetic field forming units, at least one magnetic field detector, and a first magnetic member and a second magnetic member. The first magnetic member and the second magnetic member are each made of a magnetic material, cover longitudinal-direction both ends of the magnetic field detector facing the first support, respectively, and face each other with a gap interposed therebetween at a longitudinal-direction mid-portion of the magnetic field detector in the longitudinal direction. A dimension of each of the magnetic field forming units in a tangential direction of a circumference is larger than a dimension of the corresponding magnetic field forming unit in a radial direction and is larger than the distance of the gap. | 07-17-2014 |
20140300254 | MOTOR, MOTOR SYSTEM, AND MOTOR ENCODER - A motor according to an embodiment includes a motor body, a rotating body, and a magnetic field sensor. The motor body rotates a shaft about the axis line thereof. The rotating body includes a permanent magnet and rotates along with the rotation of the shaft. The magnetic field sensor includes a magnet body having a large Barkhausen effect with the long direction thereof serving as the easy magnetization direction and is positioned to face the permanent magnet when the rotational position of the rotating body is at a given rotational position. The easy magnetization direction of the magnetic body is in a direction along a plane orthogonal to the rotation center line of the rotating body. | 10-09-2014 |
Patent application number | Description | Published |
20130020917 | ENCODER, DRIVING APPARATUS, METHOD FOR CALCULATING ABSOLUTE POSITION, AND METHOD FOR MANUFACTURING ENCODER - An encoder includes a position data obtainer that obtains superordinate data representing a position of a moving body in a superordinate section and subordinate data representing a position in a subordinate section repeated in a superordinate section with higher resolution than that of the superordinate data, a storage in which a correction value that can correct a deviation amount occurring in the superordinate data against the subordinate data is recorded to be associated with an absolute position with resolution nearly equal to that of the superordinate data, a corrector that obtains the correction value from the storage and corrects the superordinate data, and a section identifier that identifies, based on the superordinate data corrected by the corrector and the subordinate data when the superordinate data is obtained, the subordinate section in which the subordinate data is obtained against the superordinate section. | 01-24-2013 |
20150122980 | ENCODER, MOTOR WITH ENCODER, AND SERVO SYSTEM - An encoder includes a plurality of slit tracks, a point light source, a first light-receiving array, a second light-receiving array, and a third light-receiving array. The plurality of slit tracks respectively comprises a plurality of reflection slits arranged along a measurement direction. The point light source is configured to emit diffusion light to the plurality of slit tracks. The first light-receiving array is configured to receive light reflected by the slit track comprising an incremental pattern. The second light-receiving array is configured to receive light reflected by the slit track comprising an incremental pattern longer in pitch than other incremental patterns. The third light-receiving array is configured to receive light reflected by the slit track comprising an absolute pattern. | 05-07-2015 |
20150122982 | ENCODER, MOTOR WITH ENCODER, AND SERVO SYSTEM - An encoder includes a track having optical effecters arranged to have an absolute pattern in a measurement direction, a light source configured to emit diffusion light to the track, and a light receiving array configured to have light receiving elements arranged in the measurement direction and to receive light reflected or transmitted by the track. The light receiving elements fall within an area which is positioned corresponding to an area between the optical effecters and to which the light reflected by the track dose not reach. | 05-07-2015 |
20150123585 | ENCODER, MOTOR WITH ENCODER, AND SERVO SYSTEM - An optical module includes: a light source configured to emit diffusion light to tracks; one light receiving array and another light receiving array which are arranged across the light source in a width direction substantially vertical to the measurement direction; a light receiving array arranged between the one light receiving array and the light source, and configured to receive light which is reflected at the tracks having a first incremental pattern; and a light receiving array arranged between the another first light receiving array and the light source, and configured to receive light which is reflected at the tracks having a second incremental pattern which pitch is longer than a pitch of the first incremental pattern. | 05-07-2015 |
20150123586 | ENCODER, MOTOR WITH ENCODER, AND SERVO SYSTEM - The encoder includes a plurality of slit tracks, a point light source, two first light-receiving arrays, two second light-receiving arrays, and a third light-receiving array. The plurality of slit tracks respectively comprises a plurality of reflection slits arranged along a measurement direction. The point light source is configured to emit diffusion light to the plurality of slit tracks. The two first light-receiving arrays are disposed sandwiching the point light source in a width direction substantially orthogonal to the measurement direction. The two second light-receiving arrays are disposed sandwiching the point light source in the measurement direction. The third light-receiving array is configured to receive light reflected by the slit track comprising an incremental pattern that differs in pitch from other incremental patterns, and is disposed at a position in a direction where the first light-receiving array is disposed than the point light source. | 05-07-2015 |
20150123587 | ENCODER, MOTOR WITH ENCODER, AND SERVO SYSTEM - An encoder includes a plurality of slit tracks, a point light source, a first light-receiving array, and a second light-receiving array. The plurality of slit tracks respectively comprises a plurality of reflection slits arranged along a measurement direction. The point light source is configured to emit diffusion light to the plurality of slit tracks. The first light-receiving array is configured to receive light reflected by the slit track comprising an incremental pattern, and is disposed at a position in a first direction than the point light source. The second light-receiving array is configured to receive light reflected by the slit track comprising an incremental pattern that differs in pitch from the slit track corresponding to the first light-receiving array, and is disposed at a position in a second direction than the point light source. The second direction forms an angle θ with respect to the first direction. | 05-07-2015 |
20150123588 | ENCODER, MOTOR WITH ENCODER, AND SERVO SYSTEM - An encoder includes a plurality of slit tracks, a point light source, a first to third light-receiving arrays. The plurality of slit tracks respectively comprises a plurality of reflection slits. The point light source emits diffusion light to the plurality of slit tracks. The first light-receiving array receives light reflected by the slit track comprising an incremental pattern. The second light-receiving array receives light reflected by the slit track comprising an incremental pattern longer in pitch than other incremental patterns, and is disposed at a position on a side of a direction where the point light source is disposed, than the first light-receiving array, The third light-receiving array receives light reflected by the slit track comprising an absolute pattern, and is disposed at a position on a side of a direction where the point light source is disposed, than the first light-receiving array. | 05-07-2015 |
20150292918 | ENCODER, ENCODER-EQUIPPED MOTOR, AND SERVO SYSTEM - An encoder includes a disk on a rotor. First slit tracks each include slits in an incremental pattern in a measurement direction. A second slit track includes slits in an absolute pattern in the measurement direction. A light source emits light to the first and second slit tracks. First light reception arrays are offset from each other in a width direction perpendicular to the measurement direction. The first light reception arrays receive light reflected by the first slit tracks to output first light reception signals. The second light reception arrays receive light reflected by the second slit track to output second light reception signals. A selector selects one of the second light reception signals based on the first light reception signals. A position data generator generates position data of the rotor based on one of the first light reception signals and the one second light reception signal. | 10-15-2015 |
20150354992 | ENCODER, SERVO SYSTEM, AND POSITION DATA GENERATION METHOD OF ENCODER - An encoder includes a disc coupled to a rotating body and having first tracks and one or more second tracks, a light source which emits light to the first and second tracks, first arrays positioned mutually offset in width direction of the disc perpendicular to measurement direction of the first and second tracks such that the first arrays receive light reflected or transmitted by the first tracks and output first signals, two second arrays positioned to receive light reflected or transmitted by the second track such that the second arrays output two second signals having mutually different phases, and a device which generates position data of the body based on one or more first signals and one of the second signals selected based on the first signals. Each first track has an incremental pattern along the measurement direction, and the second track has an absolute pattern along the measurement direction. | 12-10-2015 |