| Patent application number | Description | Published |
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| 20090205942 | Pushbutton Switch Device - Provided is a pushbutton switch device provided with a switch case in which a depressing member is arranged which, when moved downwards, depresses a switch. Arranged inside the switch case is an operating member which, when depressed, comes into contact with the depressing member to move the depressing member downwards. Provided in the peripheral edge of the operating member are a plurality of engagement portions to be engaged with the peripheral edge of the switch case. When the operating member is depressed, the depressed portion of the operating member rotates downwardly using, as a fulcrum, the engagement portion corresponding to the depressed portion of the operating member. | 08-20-2009 |
| 20110036692 | OPERATION PANEL DEVICE FOR AN ELEVATOR - In an operation panel device for an elevator, a switch provided with a switch main body and an operation portion is mounted onto the back surface of a faceplate. A retaining mechanism for retaining the switch main body in a predetermined mounting position is provided between a side surface of the switch main body and the back surface of the faceplate. The retaining mechanism includes an elastic member. The elastic member allows the switch main body to be moved to the mounting position by elastic deformation. Further, when the switch main body is moved to the mounting position, the elastic member is restored to an original state thereof to prevent the switch main body from moving from the mounting position. | 02-17-2011 |
| 20110209974 | PUSH-BUTTON SWITCH - In a push-button switch, a mark for conveying information to a user is disposed on a portion of a front surface of a push-button for operating a switch main body. A light-guiding plate is disposed between the switch main body and the push-button. A mark diffusing portion that diffuses injected light is disposed on a portion of the light-guiding plate that faces the mark. A mark light source portion injects light into the light-guiding plate so as to be directed toward the mark diffusing portion. | 09-01-2011 |
| 20120140479 | INDICATOR APPARATUS - In an indicator apparatus, a prism member includes: a prism member side surface; and a transmitting and reflecting surface that is inclined relative to the prism member side surface, and into which light from a light source is admitted. An adjacent member has an adjacent surface that is adjacent to the prism member side surface. The light from the light source is admitted into the transmitting and reflecting surface when the light source is lit, and passes through the prism member. If the prism member is viewed frontally when the light source is not lit, the adjacent surface is visible by optical reflection at the transmitting and reflecting surface. | 06-07-2012 |
| 20120250318 | LED SURFACE COVER, AND LED LIGHTING SYSTEM, DISPLAY DEVICE - An LED surface cover ( | 10-04-2012 |
| 20120305342 | ELEVATOR DISPLAY DEVICE - An elevator display device has a light-emitting display unit, a resin cover, and a metallic tone film. The resin cover is disposed in front of the light-emitting display unit so as to cover the light-emitting display unit, and transmits light from the light-emitting display unit. The metallic tone film is disposed on the cover, and transmits the light from the light-emitting display unit. The metallic tone film is made of a nano-layered film that is optically designed to have a metallic sheen. | 12-06-2012 |
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| 20090079125 | Sheet supply device and image forming apparatus - A sheet supply device includes a first separation unit for applying a transportation load to a medium supplied from a stored state with a sheet supply member to separate the medium, and a second separation unit disposed on a downstream side of the first separation unit for separating the medium passing through the first separation unit. The first separation unit is disposed outside an extension area of the second separation unit in a medium transportation direction. | 03-26-2009 |
| 20090269091 | IMAGE FORMING DEVICE AND IMAGE FORMING METHOD THEREOF - An image forming device includes a first measuring unit to measure a size of the recording medium when the image is formed on the first surface by the image forming unit, and a second measuring unit to measure the size of the recording medium prior to an image being formed on the second surface of the recording medium, and a control unit configured to change the size of printing range based upon the image data that is used to form the image on the second surface of the recording medium in accordance with a medium ratio of the size of the recording medium measured by the first measuring unit to the size of the recording medium measured by the second measuring unit. | 10-29-2009 |
| 20100296841 | DRIVE TRANSMISSION DEVICE AND IMAGE FORMING APPARATUS - A drive transmission device includes: a driving member configured to rotate by a first electric current and having an attracting portion configured to generate magnetic force by a second electric current; a driven member having an attracted portion, the attracted portion facing the driving member and configured to be attached to the attracting portion by the magnetic force, so that the driven member integrally rotates with the driving member when the attracting portion is coupled to the attracted portion; and a controller configured to control the first electric current and the second electric current, the controller configured to apply the first electric current and then the second electric current. | 11-25-2010 |
| 20110044743 | DEVELOPER CONVEYING APPARATUS, DEVELOPER STORAGE CONTAINER, AND IMAGE FORMING APPARATUS - A developer conveying apparatus includes a main body in which a developer is conveyed, a first conveying member including a first rotation shaft rotatably provided in the main body and a first conveying portion having a spiral shape and provided around the first rotation shaft, and a second conveying member including a second rotation shaft rotatably provided in the main body and a second conveying portion having a spiral shape and provided around the second rotation shaft. A developer retention portion is formed at a predetermined portion of the second conveying member. | 02-24-2011 |
| 20120181414 | ROTOR SUPPORT MECHANISM AND IMAGE FORMATION APPARATUS - A rotor support structure includes: an operable unit including a rotor and a casing rotatably supporting the rotor; a support member includes a support member main body configured to accommodate therein the operable unit, and an attachment part to attach the support member main body to a base; and a press part configured, when the support member with the operable unit accommodated therein is attached to the base, to press the operable unit to hold the operable unit in the support member main body. | 07-19-2012 |
| 20130268239 | FILLING-CAPACITY MEASURING METHOD - In order to provide a method for measuring a filling capacity of a raw material such as leaf tobacco without carrying out a complicated operation, the present invention includes the steps of (i) irradiating a near infrared ray on a sample of a raw material so as to measure a transmission absorption spectrum or a diffuse reflectance spectrum of the sample; and (ii) calculating an estimated filling capacity value by use of the transmission absorption spectrum or the diffuse reflectance spectrum thus measured and on the basis of a calibration curve which has been prepared in advance. | 10-10-2013 |
| 20150023710 | MEDIUM CASSETTE AND IMAGE FORMING APPARATUS - A medium cassette is configured to be held and attached to a main body of an image forming apparatus so that the medium cassette slides in an insertion direction or a pullout direction relative to the image forming apparatus. The medium cassette includes a rear side guide for guiding a medium to be placed at a rear side in the pullout direction; a locking member disposed to be able to engage with a body of the medium cassette for regulating a position of the rear side guide relative to the body of the medium cassette; and a movement conversion member for converting a movement of the rear side guide generated by an impact when the medium cassette is attached to the body of the image forming apparatus to a movement of the locking member in a direction that the locking member engages with the body of the medium cassette. | 01-22-2015 |
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| 20140338379 | HEAT PUMP DEVICE, AND AIR CONDITIONER, HEAT PUMP WATER HEATER, REFRIGERATOR AND FREEZING MACHINE INCLUDING HEAT PUMP DEVICE - A heat pump device includes an inverter control unit for controlling an inverter. The inverter control unit includes a constraint-energization control unit that, during operation standby of a compressor, determines whether heating to the compressor is necessary, on the basis of a coolant sleeping amount in the compressor, and, when having determined that heating to the compressor is necessary, selects, according to the coolant sleeping amount, any one of direct-current energization for supplying a direct-current voltage to the motor and high-frequency energization for supplying a high-frequency voltage having a frequency higher than a frequency during a normal operation to the motor, so as to output a constraint energization command for carrying out constraint energization of the motor; and a driving-signal generating unit that generates a driving signal on the basis of the constraint energization command. | 11-20-2014 |
| 20140338380 | HEAT PUMP DEVICE, AIR CONDITIONER, AND FREEZER - The present invention is a heat pump device that includes a compressor including a compression mechanism and a motor, a heat exchanger, an inverter, and an inverter control unit including a drive-signal generation unit generating a drive signal for the inverter and a heating-operation-mode control unit controlling the drive-signal generation unit when the compressor is heated by applying, to the motor, a high-frequency voltage with which the motor cannot be rotationally driven, wherein the heating-operation-mode control unit includes a magnetic-pole-position estimation unit estimating a magnetic pole position indicating a stop position of a rotor of the motor, and a high-frequency energization unit determining an amplitude and a phase of a voltage command based on an estimation result of the magnetic pole position and a necessary amount of heat, notifies the drive-signal generation unit of determined amplitude and phase, and causes the drive-signal generation unit to generate a drive signal. | 11-20-2014 |
| 20150089972 | HEAT PUMP DEVICE, AIR CONDITIONER, AND FREEZER - A heat pump device includes a compressor including a compression mechanism that compresses a refrigerant and a motor that drives the compression mechanism, an inverter that applies a voltage for driving the motor, a converter that applies a voltage to the inverter, an inverter control unit that generates a driving signal for driving the inverter, and a converter control unit that generates a driving signal for driving the converter, wherein the inverter control unit includes a heating operation mode in which a heating operation of the compressor is performed and a normal operation mode in which a refrigerant is compressed by performing a normal operation of the compressor and the converter control unit sets, in the heating operation mode of the inverter control unit, a voltage applied to the inverter on the basis of a voltage command value for the motor. | 04-02-2015 |
| 20150096320 | HEAT PUMP DEVICE, AIR CONDITIONER, AND FREEZER - A heat pump device includes: a compressor including a compression mechanism compressing a refrigerant and a motor driving the compression mechanism; an inverter unit applying a voltage for driving the motor; an inverter control unit generating a driving signal for driving the inverter unit; and temperature sensors detecting temperatures of the compressor, wherein the inverter control unit includes a normal operation mode in which a refrigerant is compressed by performing a normal operation of the compressor and a heating operation mode in which a heating operation of the compressor is performed by applying, to the motor, a high-frequency voltage, and in the heating operation mode, the inverter control unit determines an amplitude and a phase of a voltage command for generating the high-frequency voltage on a basis of a temperatures detected by the temperature sensors and a necessary amount of heat specified in advance. | 04-09-2015 |
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| 20090126974 | Manufacturing Process for a Prepreg with a Carrier, Prepreg with a Carrier, Manufacturing Process for a Thin Double-Sided Plate, Thin Double-Sided Plate and Manufacturing Process for a Multilayer-Printed Circuit Board - A process for manufacturing a prepreg with a carrier exhibiting excellent impregnating properties and thickness precision, which is particularly suitably used for preparing a build-up type multilayer-printed circuit board is provided. Also, a prepreg with a carrier prepared by the manufacturing process and a process for manufacturing a multilayer-printed circuit board utilizing the prepreg with a carrier are provided. There is provided a process for continuously manufacturing a prepreg with a carrier comprising an insulating resin layer having a backbone material of a textile fabric, (a) laminating the insulating resin layer side of a first and a second carriers comprising an insulating resin layer on one side on the both sides of the textile fabric, respectively, to form a laminate and bonding them under a reduced pressure, and (b) after the bonding, heating the laminate at a temperature equal to or higher than a melting point of the insulating resin. | 05-21-2009 |
| 20090302462 | Prepreg, Method for Manufacturing Prepreg, Substrate, and Semiconductor Device - A prepreg which can meet a demand for thickness reduction is provided. The prepreg has first and second resin layers having different applications, functions, capabilities, or properties, and allows an amount of a resin composition in each of the first and second resin layers to be set appropriately depending on a circuit wiring portion to be embedded into the second resin layer. Further, a method for manufacturing the above prepreg, and a substrate and a semiconductor device having the prepreg are also provided. The prepreg according to the present invention includes a core layer including a sheet-shaped base member and having one surface and the other surface which is opposite to the one surface, the first resin layer provided on the one surface of the core layer and formed of a first resin composition, and the second resin layer provided on the other surface of the core layer and formed of a second resin composition, wherein at least one of a requirement that a thickness of the first resin layer is different from that of the second resin layer and a requirement that a constitution of the first resin composition is different from that of the second resin composition is satisfied. | 12-10-2009 |
| 20100297420 | METHOD FOR MANUFACTURING LAMINATED BOARD, AND LAMINATED BOARD - A method for manufacturing a laminated board, comprising:
| 11-25-2010 |
| 20100300619 | PREPREG, METHOD FOR MANUFACTURING PREPREG, SUBSTRATE, AND SEMICONDUCTOR DEVICE - A prepreg which can meet a demand for thickness reduction is provided. The prepreg has first and second resin layers having different applications, functions, capabilities, or properties, and allows an amount of a resin composition in each of the first and second resin layers to be set appropriately depending on a circuit wiring portion to be embedded into the second resin layer. Further, a method for manufacturing the above prepreg, and a substrate and a semiconductor device having the prepreg are also provided. The prepreg according to the present invention includes a core layer including a sheet-shaped base member and having one surface and the other surface which is opposite to the one surface, the first resin layer provided on the one surface of the core layer and formed of a first resin composition, and the second resin layer provided on the other surface of the core layer and formed of a second resin composition, wherein at least one of a requirement that a thickness of the first resin layer is different from that of the second resin layer and a requirement that a constitution of the first resin composition is different from that of the second resin composition is satisfied. | 12-02-2010 |
| 20110120630 | MANUFACTURING PROCESS FOR A PREPREG WITH A CARRIER, PREPREG WITH A CARRIER, MANUFACTURING PROCESS FOR A THIN DOUBLE-SIDED PLATE, THIN DOUBLE-SIDED PLATE AND MANUFACTURING PROCESS FOR A MULTILAYER-PRINTED CIRCUIT BOARD - A process for manufacturing a prepreg with a carrier exhibiting excellent impregnating properties and thickness precision, which is particularly suitably used for preparing a build-up type multilayer-printed circuit board is provided. Also, a prepreg with a carrier prepared by the manufacturing process and a process for manufacturing a multilayer-printed circuit board utilizing the prepreg with a carrier are provided. There is provided a process for continuously manufacturing a prepreg with a carrier comprising an insulating resin layer having a backbone material of a textile fabric, (a) laminating the insulating resin layer side of a first and a second carriers comprising an insulating resin layer on one side on the both sides of the textile fabric, respectively, to form a laminate and bonding them under a reduced pressure, and (b) after the bonding, heating the laminate at a temperature equal to or higher than a melting point of the insulating resin. | 05-26-2011 |
| 20110256367 | PREPREG, METHOD FOR MANUFACTURING PREPREG, SUBSTRATE, AND SEMICONDUCTOR DEVICE - A prepreg which can meet a demand for thickness reduction is provided. The prepreg has first and second resin layers having different applications, functions, capabilities, or properties, and allows an amount of a resin composition in each of the first and second resin layers to be set appropriately depending on a circuit wiring portion to be embedded into the second resin layer. Further, a method for manufacturing the above prepreg, and a substrate and a semiconductor device having the prepreg are also provided. The prepreg according to the present invention includes a core layer including a sheet-shaped base member and having one surface and the other surface which is opposite to the one surface, the first resin layer provided on the one surface of the core layer and formed of a first resin composition, and the second resin layer provided on the other surface of the core layer and formed of a second resin composition, wherein at least one of a requirement that a thickness of the first resin layer is different from that of the second resin layer and a requirement that a constitution of the first resin composition is different from that of the second resin composition is satisfied. | 10-20-2011 |
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| 20090148060 | IMAGE PROCESSING APPARATUS AND METHOD THEREOF - An image processing apparatus applies a separability filter to respective positions of an inputted image including a linear object, calculates separability of the respective positions, generates a separability map as a set of the separability of the respective positions, applies distance transform or thinning process to the separability map to generate a skeleton image in which the linear object is displayed, and outputs the skeleton image. | 06-11-2009 |
| 20100246905 | PERSON IDENTIFYING APPARATUS, PROGRAM THEREFOR, AND METHOD THEREOF - A person identifying apparatus calculates suitability as a reference for improving a face identification rate of an identical person appeared in frames of a moving image on the frame-to-frame basis, selects a frame from the moving image using the suitability, calculates a feature value from the selected frame, and identifies the face of the person on the basis of a similarity between the feature value and a feature value of a reference frame selected in advance using the suitability. | 09-30-2010 |
| 20120070072 | IMAGE PROCESSING DEVICE, IMAGE PROCESSING METHOD AND COMPUTER READABLE PRODUCT - According to one embodiment, an image processing device includes a readiness determining unit configured to determine whether or not a state of a face image included in an image at one time out of images obtained at a plurality of different times is a ready state that satisfies a condition for performing three-dimensionality determination, three-dimensionality determination is determining whether the object is three-dimensional or not; an initiation determining unit configured to determine whether or not a state of a face image included in an image at different time from the image at the one time is an initiation state changed from the ready state; and a first three-dimensionality determining unit configured to perform the three-dimensionality determination on the face images included in the images when it is determined that the state is the initiation state. | 03-22-2012 |
| 20120076360 | IMAGE PROCESSING APPARATUS, METHOD AND COMPUTER-READABLE STORAGE MEDIUM - An image processing apparatus includes a receiver, a registration section, a determination section, and a controller. The receiver receives broadcast waves including signals of a plurality of channels. The registration section registers a recognition target. The determination section determines whether or not the recognition target, registered in the registration section, exists in a frame of an image including the signals of the plurality of channels included in the broadcast waves received by the receiver. The controller sequentially switches, in accordance with a determination result obtained by the determination section, the plurality of channels received by the receiver. | 03-29-2012 |
| 20140219519 | TRAFFIC CONTROL APPARATUS, METHOD THEREOF, AND PROGRAM THEREFOR - There is provided a traffic control apparatus including: an image input unit configured to input an image including a face of a user; a face detecting unit configured to detect a face area of the user from the image; a generating unit configured to obtain a difference between a state of the detected face area and a state of a optimal face area, and generate presentation information for instructing the user to move his or her face to a position suitable for the face recognition when the difference is large; and a noticing unit having a plurality of keys arranged in a matrix pattern, and configured to illuminate, blink, or extinguish one or the plurality of keys for specifying the position that the face is to be moved to on the basis of the presentation information. | 08-07-2014 |
| 20150205999 | TRAFFIC CONTROL APPARATUS, METHOD THEREOF, AND PROGRAM THEREFOR - There is provided a traffic control apparatus including: an image input unit configured to input an image including a face of a user; a face detecting unit configured to detect a face area of the user from the image; a generating unit configured to obtain a difference between a state of the detected face area and a state of a optimal face area, and generate presentation information for instructing the user to move his or her face to a position suitable for the face recognition when the difference is large; and a noticing unit having a plurality of keys arranged in a matrix pattern, and configured to illuminate, blink, or extinguish one or the plurality of keys for specifying the position that the face is to be moved to on the basis of the presentation information. | 07-23-2015 |
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| 20090050238 | TREATMENT SOLUTION FOR FORMING OF BLACK TRIVALENT CHROMIUM CHEMICAL COATING ON ZINC OR ZINC ALLOY AND METHOD OF FORMING BLACK TRIVALENT CHROMIUM CHEMICAL COATING ON ZINC OR ZINC ALLOY - A treatment solution that is used to form a chemical coating of trivalent chromium free of hexavalent chromium having uniform black appearance and good corrosion resistance on the surface of zinc or zinc alloy and that attains prolongation of treatment bath lifetime; and a method of forming a black trivalent chromium chemical coating on the surface of zinc or zinc alloy. There is provided a treatment solution for forming of a black trivalent chromium chemical coating on zinc or zinc alloy, comprising trivalent chromium ions, a chelating agent capable of forming a water-soluble complex with trivalent chromium, zinc ions, a sulfur compound and phosphite ions. | 02-26-2009 |
| 20100297454 | Surface-Treating Aqueous Solution and Treatment Methods for Forming Corrosion-Resistant Coating Film Over Zinc or Zinc Alloy Deposit - A chromium-free treating liquid and treatment methods which are for imparting to a zinc or zinc alloy deposit a coating film which is highly corrosion-resistant, has a uniform appearance free from sag stains/puddle stains, has no failure concerning thickness unevenness, and has satisfactory adhesion. The surface-treating aqueous solution, which is for forming a corrosion-resistant coating film over a zinc or zinc alloy deposit, is characterized by comprising (a) an alkali metal silicate (M | 11-25-2010 |
| 20150125708 | SURFACE-TREATING AQUEOUS SOLUTION AND TREATMENT METHODS FOR FORMING CORROSION-RESISTANT COATING FILM OVER ZINC OR ZINC ALLOY DEPOSIT - A chromium-free treating liquid and treatment methods which are for imparting to a zinc or zinc alloy deposit a coating film which is highly corrosion-resistant, has a uniform appearance free from sag stains/puddle stains, has no failure concerning thickness unevenness, and has satisfactory adhesion. The surface-treating aqueous solution, which is for forming a corrosion-resistant coating film over a zinc or zinc alloy deposit, is characterized by comprising (a) an alkali metal silicate (M | 05-07-2015 |
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| 20110032049 | POWER DIVIDER - In cases where a power divider is constructed by using a multilayer substrate, a power divider is obtained which is smaller in size and has a good reflection property. The power divider according to the present invention is provided with a multilayer dielectric substrate ( | 02-10-2011 |
| 20130324667 | RUBBER COMPOSITION, PRODUCTION METHOD THEREFOR AND TIRE - Objects of the present invention are to provide a rubber composition that can obtain a rubber elastic body having small rolling resistance and excellent impact resilience and a method for producing the same, and to provide a tire having small rolling resistance and excellent impact resilience. The rubber composition of the present invention is obtained by kneading a conjugated diene polymer (A) having a group with bonding reactivity to silica only at one site of one molecule of the polymer, a polymer (B) having groups with bonding reactivity to silica at a plurality of sites of one molecule of the polymer, and a filler (C) containing silica. | 12-05-2013 |
| 20140221563 | METHOD FOR PRODUCING DENATURED CONJUGATED DIENE POLYMER - A method for producing a modified conjugated diene polymer usable as a raw material of a crosslinked polymer which is used for use in tires and the like of automobiles and can enhance low fuel consumption performance of automobiles and the like is provided. | 08-07-2014 |
| 20140309363 | METHOD FOR PRODUCING DENATURED CONJUGATED DIENE POLYMER - A method for producing a conjugated diene polymer usable as a raw material of a crosslinked polymer which is used for use in tires of automobiles and can enhance low fuel consumption performance of automobiles is provided. | 10-16-2014 |
| 20140357784 | MODIFIED CONJUGATED DIENE POLYMER AND METHOD FOR PRODUCING SAME - A modified conjugated diene polymer, which can be used as a raw material of a cross-linked polymer for automobile tires, is prepared by a method including a step of polymerizing a monomer having a conjugated diene compound etc. in the presence of a compound of formula (1) or (2) and an alkali metal compound to obtain a conjugated diene polymer, and a step of reacting the polymer and a compound of formula (3). | 12-04-2014 |
| 20150008991 | PLANAR CIRCUIT TO WAVEGUIDE TRANSITION - Openings are formed by removing part of a ground conductor, and a differential signal line including signal line conductors is configured with some of the openings. In addition, a metal block is mounted thereon to cover the opening to thus configure a waveguide using the metal block and ground conductor as wall surfaces. A planar circuit to waveguide transition according to the above can achieve traveling wave conversions from a waveguide mode to a slot mode, and from the slot mode to a differential mode without utilizing resonance, which makes it possible to align a dominant direction of an electric field by the three ones; thus, a wider bandwidth can be expected. Thus, the wider bandwidth can be achieved with a simple layer structure. | 01-08-2015 |
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| 20140209832 | Positive Electrode Active Material for Non-Aqueous Secondary Battery and Manufacturing Method Thereof, as well as Non-Aqueous Secondary Battery Using Positive Electrode Active Material - A positive electrode active material for a non-aqueous secondary battery having high capacity and high rate characteristics is intended to be provided. Further, a positive electrode for a non-aqueous secondary battery and a non-aqueous secondary battery are intended to be provided by using the positive electrode active material. The positive electrode active material for the non-aqueous secondary battery contains a lithium composite oxide having an olivine structure represented by the chemical formula: Li | 07-31-2014 |
| 20150140431 | METHOD FOR PRODUCING POSITIVE ELECTRODE ACTIVE MATERIAL FOR NONAQUEOUS SECONDARY BATTERIES, POSITIVE ELECTRODE FOR NONAQUEOUS SECONDARY BATTERIES, AND NONAQUEOUS SECONDARY BATTERY - A method for producing a positive electrode active material for nonaqueous secondary batteries, the positive electrode active material using a polyanionic active material. The method includes the steps of mixing raw materials of the positive electrode active material with each other, pre-calcining the mixed raw materials in an oxidizing atmosphere at a temperature ranging from 400 to 600° C. both inclusive, mixing carbon or an organic substance with a pre-calcinated material yielded through the pre-calcining step, and the step of calcining the pre-calcinated material, with which the carbon or the organic substance is mixed in a reducing atmosphere or an inert atmosphere. | 05-21-2015 |
| 20150188139 | Positive Electrode Active Material for Lithium Secondary Batteries, Positive Electrode for Lithium Secondary Batteries Using Same, Lithium Secondary Battery, and Method for Producing Positive Electrode Active Material for Lithium Secondary Batteries - Provided is a positive electrode active material for lithium secondary batteries, which uses a highly safe polyanion compound and has high capacity, high rate characteristics and high energy density. A positive electrode active material for lithium secondary batteries, which contains polyanion compound particles coated with carbon. This positive electrode active material for lithium secondary batteries is characterized in that: the polyanion compound has a structure represented by chemical formula (1); the roughness factor of the polyanion compound, said roughness factor being represented by formula (1), is 1-2; and the average primary particle diameter of the polyanion compound is 10-150 nm. LixMAyOz (chemical formula (1)) (In chemical formula (1), M comprises at least one transition metal element; A represents a typical element that combines with oxygen (O) and forms an anion; 0| 07-02-2015 | |
