Patent application number | Description | Published |
20100076825 | CHARGE/DISCHARGE CONTROL APPARATUS - A charge/discharge control apparatus includes: a charge/discharge reward information receiving unit for receiving charge/discharge reward information representing a reward given to a charge/discharge action of a customer and a restriction in conducting a charging/discharging from a charge management central server; a computing unit for creating a charge/discharge plan including a total charging quantity in a time zone and an estimated use start time of an electric vehicle such that a reward is maximized, based on the charge/discharge reward information; a charge/discharge instruction transmitting unit for instructing the electric vehicle to start or finish a charging/discharging according to the charge/discharge plan; a charge/discharge quantity monitoring unit for monitoring the charging/discharging; and a charge/discharge results transmitting unit for transmitting results of monitored charging/discharging including contents of the conducted charging/discharging and individual identification information for identifying itself, to a charge management central server. | 03-25-2010 |
20100301362 | Semiconductor light emitting element - A semiconductor light emitting element includes a group III-V compound semiconductor layer, a first main surface and a second main surface, a reflection metal film formed on the second main surface, a front surface electrode formed on the first main surface, and an ohmic contact joint part formed between the reflection metal film and the group III-V compound semiconductor layer except a region directly under the front surface electrode. The ohmic contact joint part is disposed in a side of an outer peripheral part of the semiconductor light emitting element, formed so as to surround the front surface electrode when the ohmic contact joint part is viewed from a side of the front surface electrode, and disposed so that distance from each location of outer edge parts of the front surface electrode to the ohmic contact joint part nearest to the each location becomes equal to each other. | 12-02-2010 |
20110024781 | Light emitting device - A light emitting device has a light emitting layer having a first semiconductor layer of a first conductivity type, a second semiconductor layer of a second conductivity type different from the first conductivity type, and an active layer sandwiched between the first semiconductor layer and the second semiconductor layer, a reflecting layer provided on a side of one surface of the light emitting layer, which reflects a light emitted from the active layer, a supporting substrate provided on an opposite side of the reflecting layer with respect to the light emitting layer, which supports the light emitting layer via an adhesion layer, an ohmic contact portion provided on a part of the reflecting layer, which electrically connects between the reflecting layer and the light emitting layer, and convexo-concave portions formed on other surface of the light emitting layer and side surfaces of the light emitting layer, respectively, and an insulating film configured to cover the convexo-concave portions. | 02-03-2011 |
20110035075 | ENERGY MANAGEMENT APPARATUS FOR CUSTOMERS - A customer-dedicated energy management apparatus includes an air-conditioner partial-road characteristics identification unit for creating air-conditioning partial-road characteristics by using air-conditioning operation achievement data in the past, an intra-room heat-capacity characteristics identification unit for creating intra-room heat-capacity characteristics by using the air-conditioning operation achievement data in the past, and intra-room state value data, an air-conditioning setting temperature calculation unit for determining an air-conditioning setting temperature by using the air-conditioning partial-road characteristics and the intra-room heat-capacity characteristics, the setting temperature being appropriate for implementing an air-conditioning power-consumption-amount suppression target value determined, and an air-conditioner control unit for controlling an air conditioner so that the setting temperature determined will be implemented. | 02-10-2011 |
20110153098 | RENEWABLE ELECTRICITY GENERATION SYSTEM, ELECTRIC POWER MEASUREMENT DEVICE AND METHOD - A solar power generation system comprising: plural customers each having a solar panel, a power convertor for converting DC output from the solar panel into AC output, an output controller for suppressing the power convertor output which becomes higher than a predetermined value, a measuring unit for measuring the amount of sold power, the amount of purchased power and the amount of generation-suppressed power; and an watt-hour meter measurement data adjusting unit linked with the plural customers via communication lines. The watt-hour meter measurement data adjusting unit calculates provisional generation-suppressed power amounts that make the burdens of the customers even, and calculates the power amounts to be sold by the customers on the basis of the provisional generation-suppressed power amounts. Thus, the generation-suppressed power of the solar power generation system can stabilize the power system and the chances for selling power can be fairly allocated to customers having solar panels. | 06-23-2011 |
20110196633 | ACCUMULATOR DEVICE, AND STATE OF CHARGE EVALUATION APPARATUS AND METHOD FOR ACCUMULATOR - There are implemented a method which allows a present state of charge to be precisely estimated not only for a new battery, but also for a lead accumulator that has deteriorated with the lapse of a certain period since first use thereof, and a lead accumulator which can be increased in lifetime and reduced in cost using information on the precisely determined state of charge. An accumulator device includes an accumulator, a terminal voltage measurement unit for measuring a terminal voltage of the accumulator, a current measurement unit for measuring a current flowing in the accumulator, multi-dimensional characteristic models in which a plurality of relational models each between the measured terminal voltage, current and the state of charge are prepared for each of deterioration degrees, a deterioration degree estimation unit for estimating a present deterioration degree of the accumulator, a corresponding model selective determination unit for selectively determining, based on the deterioration degree determined by the deterioration degree estimation unit, a corresponding model from among the multi-dimensional characteristic models, and a state of charge estimation unit for estimating the present state of charge using the model selectively determined by the corresponding model selective determination unit. | 08-11-2011 |
20110238232 | ENERGY MANAGEMENT SYSTEM, ENERGY MANAGEMENT APPARATUS, AND ENERGY MANAGEMENT METHOD - An energy management system includes an equipment data management unit which manages charging/discharging loss of a battery and heat radiation loss of an electric water heater, and causes a control unit to perform control to give priority based on the comparison to the energy storage facility more reducing loss and store energy. The energy management system includes a system operation calculation unit which predicts voltage distribution of the next day of a distribution system or demand-and-supply balance amount of the entire system by state monitoring data of a power system, calculates a demand amount increasing target value necessary for avoiding a photovoltaic power generation amount suppression on a consumer end by the voltage distribution of the next day of the distribution system or the demand-and-supply balance amount, and controls the energy storage facilities so as to satisfy the demand amount increasing target value on the consumer end. | 09-29-2011 |
20110254663 | WORK INFORMATION PROCESSOR, PROGRAM, AND WORK INFORMATION PROCESSING METHOD - Although techniques for determining the positions of workers and products and displaying their tracks on a two-dimensional layout were available in the past, they were inconvenient in that work times and process shifts over time could not be grasped. A technique for grasping work contents of a worker highly accurately utilizing electronic tags was also available. However, it was also inconvenient in that the workers had to read the electronic tags intentionally while at work. The work information processor ( | 10-20-2011 |
20110282505 | POWER DEMAND-SUPPLY MANAGEMENT SERVER AND POWER DEMAND-SUPPLY MANAGEMENT SYSTEM - A power demand/supply management server ( | 11-17-2011 |
20110288691 | SYSTEM FOR CONTROL OF WIND POWER GENERATION STORAGE BATTERY AND METHOD OF CONTROL THEREOF - While a control method is established which can maximize the lifetime of an storage battery based on a SOC capable of maximizing the lifetime of the storage battery under a temperature condition and a wind condition at an electricity generation site and on currently known ones of other operational conditions, a control system is constructed which can feedback to an actual wind power generation and storage battery system. The control system includes a wind power generation and storage battery system, an storage battery operation and deterioration data collection unit for collecting data of the wind power generation and storage battery system, an storage battery operation and deterioration relation assessment unit for assessing a relation between an operation of the storage battery and deterioration thereof based on the collected data, an storage battery operation planning unit for planning such a method of operating the storage battery as to satisfy a necessary lifetime requirement using information obtained by the storage battery operation and deterioration relation assessment unit, and an storage battery operation instruction unit for instructing the wind power generation and storage battery system to operate the storage battery in accordance with the plan of the storage battery operation planning unit. | 11-24-2011 |
20120004787 | METHOD AND APPARATUS FOR CONTROL BATTERY AND SPECIFICATION DETERMINING METHOD OF BATTERY - A battery control apparatus of this invention is provided which comprises: a battery installed on a feeder of a utility distribution system; batteries installed between pole-mounted transformers and branch points of the distribution lines; a communication network to transmit measurement data measured by meters; a battery control quantity calculation unit to determine battery control quantities from the measurement data acquired from the communication network; a load data collection unit to collect load data representing a combination of power consumption by a plurality of loads and generated power of distributed power generations; a frequency conversion unit to perform a frequency analysis on the load data; an intermediate-cycle component extraction unit to extract intermediate-cycle components; a battery control quantity calculation unit to determine battery control quantities from the extracted intermediate-cycle components; and a battery control command transmission unit to transmit the calculated control quantities to the batteries. | 01-05-2012 |
20120038312 | LEAD ACID STORAGE BATTERY AND LEAD ACID STORAGE BATTERY SYSTEM FOR NATURAL ENERGY UTILIZATION SYSTEM - The life of a lead acid storage batttery is extended by changing an over-frequency equalized charge interval performed on a lead acid storage batttery, in accordance with a transition situation of a state of charge (SOC) of the lead acid storage batttery. The lead acid storage batttery is also made to be advantageous in terms of cost by reducing the equalized charge with a low degree of urgency to reduce the power and cost for equalized charge, and by reducing the number of stops of a natural energy storage system. A lead acid storage batttery and a lead acid storage batttery system whose operational management can be easily performed are achieved by a method in which the future timing when the equalized charge is performed can be grasped by people operating the lead acid storage batttery. The lead acid storage batttery and the lead acid storage batttery system include: a storage batttery state measurement unit; an SOC model; an SOC estimation unit configured to estimate an SOC from the information measured by the storage batttery state measurement unit and the information from the SOC model; an SOC transition DB configure to record an SOC transition situation of the lead acid storage batttery; an SOC transition history management unit configured to record, in the SOC transition DB, an estimated SOC value and to check an SOC transition situation; a degradation model of the lead acid storage batttery; an equalized charge optimal planning unit configured to plan an optimal method of performing the equalized charge based on the information on the SOC transition situation from the SOC transition history management unit and the information from the degradation model; an SOC transition information-equalized charge information output unit; and an equalized charge control unit configured to perform the equalized charge on the lead acid storage batttery in accordance with the plan determined by the equalized charge optimal planning unit. | 02-16-2012 |
20120068660 | OPERATION METHOD OF POWER TRANSMISSION AND DISTRIBUTION SYSTEM USING SECONDARY BATTERY - A battery-used power grid operation method for handling a home-use secondary battery as a virtual battery of medium- to large-scale and for lessening a necessary cell capacity to thereby enable efficient absorption of an output variation of renewable energy-derived electric power is provided. In a power system including electrical household appliances in a house having a renewable power generator, an individual house-installed rechargeable battery or separately central-managed battery, and a control device which measures and controls an output variation of the renewable power generator, those output variations of the renewable power generator occurring with time and due to changes of weather and seasons are absorbed as much as possible by preset-temperature control of the electric household appliances in the house while absorbing the remaining variations by charge/discharge of the battery, thereby lessening an electricity storage capacity required for the variation absorption. | 03-22-2012 |
20130069447 | POWER MONITOR AND CONTROL APPARATUS AND CONTROL APPARATUS OF DISTRIBUTED POWERING SYSTEM - If a failure has occurred on the backbone-power-transmission-network side, i.e., the electric-power system, and if the power supply to a power-distributing/transforming substation is stopped, a power-distributing feeder is cut off from the electric-power system. Moreover, a monitor/control apparatus transmits a single-operation-permitting permission signal to a distributed power-source system which is connected to the cut-off power-distributing feeder. Here, the distributed power-source system supplies its power to the power-distributing feeder only during a time-interval in which the system is receiving the permission signal. A general load and an important load, which are connected to the power-distributing feeder, find it possible to continue their activities by taking advantage of this power. | 03-21-2013 |
20130119947 | STORAGE BATTERY CONTROL DEVICE, CHARGING STATION, AND STORAGE BATTERY CONTROL METHOD - The battery charging of electric vehicles, etc. is controlled so that the impact on the electric power system is lightened even when a lot of electric vehicles, etc. start the charging all at once. A device for controlling an electricity storage device installed in an electric vehicle or the like calculates a voltage drop by applying a load current at the time of performing the charging of the electricity storage device, and limits the charging quantity of the storage battery (installed in the electric vehicle or the like) based on the calculated voltage drop so that the voltage drop of the electric power system remains less than a prescribed level. Consequently, it becomes possible to reduce the voltage fluctuation around each of the electric vehicles, etc. that is about to execute the charging in cases where a lot of electric vehicles, etc. start the charging all at once. | 05-16-2013 |
20130258730 | DISTRIBUTED ENERGY RESOURCES CONTROL APPARATUS AND DISTRIBUTED ENERGY RESOURCES CONTROL METHOD - A distributed energy resources control apparatus for controlling power from a distributed energy resource in a system section separable from a power system includes a detecting unit, a receiving unit, and a control unit. The detecting unit detects a fault of the power system. The receiving unit receives a signal indicating authorization for the distributed energy resource to perform independent operation as linking with the system section, when the system section is separated from the power system. The control unit controls a power converter converting power from the distributed energy resource and outputting to the system section, based on measurement results of a voltage and a frequency of the system section, when the fault is detected and the signal is received. | 10-03-2013 |
20130265030 | Power Conversion Device, Control Device for Power Conversion Device, and Control Method for Power Conversion Device - A command system of a power conditioning system of the present invention receives return pattern information including a time instance and an upper output limit, and issues a command with respect to the upper output limit of the power conditioning system, the return pattern information being for preventing the frequency of an isolated power system, which is calculated by a planning server, from causing a sharp change. | 10-10-2013 |
Patent application number | Description | Published |
20090015183 | Power tools - A power tool includes a motor, a first device and a second device. The motor receives a supply of an electric power from a power source externally of the power tool. The first device determines if the electric power supplied from the power source is an AC power or a DC power. The second device permits or interrupts the supply of the electric power to the motor depending on the determination of the first device. | 01-15-2009 |
20090128062 | Electric power tool - An electric power tool, which comprises a motor that drives a tool, a power source unit that applies voltage to the motor, a main switching circuit that makes/breaks an electrical connection between the power source unit and the motor, an illuminator that illuminates a work spot, a switching device that electrically connects the illuminator to the power source unit, and an OR circuit that is electrically connected to terminals of the motor to the base terminal is provided. The OR circuit electrically connects one of the motor terminals at which a voltage is higher to the base terminal. | 05-21-2009 |
20090207035 | Electrical power tools - An electrical power tool may include a housing, a rotating tool that is rotatably attached to the housing, a motor that is positioned in the housing and is capable of rotating the rotating tool, a manipulating portion that is attached to the housing, and an indicator device that is disposed in the housing and is capable of indicating a condition of the electrical power tool. The manipulating portion is positioned to substantially cover the indicator device. The manipulating portion is constructed such that light emitted from the indicator device can be transmitted therethrough. | 08-20-2009 |
20100236800 | POWER TOOL - It is an object of the invention to easily determine a currently-selected operation mode in a power tool which offers several operation modes. A representative electric hammer drill | 09-23-2010 |
20110025207 | ELECTRIC POWER TOOL - An electric power tool can include a main body, which rotates a motor with a pull operation of the switch lever and actuates a head tool by a rotative force of the motor, and an auxiliary tool configured for attaching and detaching to and from the electric power tool main body. In the main body, an actuating part actuated with the pull operation of the switch lever is provided. The auxiliary tool includes a detecting part, which noncontactly detects an actuation of the actuating part, and an electric circuit section for actuating electric devices, provided in the auxiliary part, by a detecting actuation of the detecting part. | 02-03-2011 |
20110114347 | HAND-HELD TOOL - An effective technique for detecting several load conditions different in presence or absence and magnitude of load applied to a tool bit is provided in a hand-held tool. A hand-held tool | 05-19-2011 |
20120068633 | VARIABLE SPEED SWITCH AND ELECTRIC POWER TOOL WITH THE VARIABLE SPEED SWITCH MOUNTED THERETO - A variable speed switch includes a switch main body portion which is accommodated in a housing of an electric power tool and mounted to the housing so as to be capable of relative movement, and a load sensor which is provided in the switch main body portion and capable of outputting an electric signal in proportion to the amount of distortion caused by a pressing force. The switch operating portion is mounted on the surface of the housing so as to be capable of relative displacement with respect to the housing and transmits a pressing force applied to the switch operating portion to the load sensor, with the maximum displacement amount of the switch operating portion being set to equal to or less than 5 mm. | 03-22-2012 |
20130175961 | ELECTRIC POWER TOOL - An electric power tool is configured to control power supply to a motor based on an operational amount of the variable speed switch, and further configured to perform in an intermittent control mode in which power supply to the motor is varied intermittently in the same manner as if an ON operation and an OFF operation of the variable speed switch were repeated. It is also able to perform in a continuous control mode in which power supply to the motor is varied based on the operational amount of the variable speed switch. | 07-11-2013 |
20130271054 | ELECTRIC TOOL - An electric tool may include an electric motor, a switch operable by a user for adjusting the rotational speed of the electric motor, an operation amount detection device configured to detect the operation amount of the switch, and an operation amount indicating device coupled to the operation amount detection device and configured to indicate the detected operation amount to the user. | 10-17-2013 |
20130277081 | RECHARGEABLE ELECTRIC POWER TOOL - A rechargeable electric power tool includes a battery pack that is detachably provided on a housing accommodating a motor and that supplies electric power to the motor, and a tool that is driven by the motor. A standby switch and a lock-on switch are arranged at the housing. The standby switch is able to set the rechargeable electric power tool to a standby state where the rechargeable electric power tool waits for the motor to be driven. The lock-on switch is able to shift the rechargeable electric power tool from the standby state to a state where the motor is driven so as to keep the state where the motor is driven. | 10-24-2013 |
20140125256 | VARIABLE SPEED SWITCH AND ELECTRIC POWER TOOL WITH THE VARIABLE SPEED SWITCH MOUNTED THERETO - A variable speed switch includes a switch main body portion which is accommodated in a housing of an electric power tool and mounted to the housing so as to be capable of relative movement, and a load sensor which is provided in the switch main body portion and capable of outputting an electric signal in proportion to the amount of distortion caused by a pressing force. The switch operating portion is mounted on the surface of the housing so as to be capable of relative displacement with respect to the housing and transmits a pressing force applied to the switch operating portion to the load sensor, with the maximum displacement amount of the switch operating portion being set to equal to or less than 5 mm. | 05-08-2014 |
Patent application number | Description | Published |
20080223117 | Scanning probe microscope and sample observation method using the same and device manufacturing method - The present invention provides a method of using an accurate three-dimensional shape without damaging a sample by making a probe contact the sample only at a measuring point, lifting and retracting the probe when moving to the next measuring point and making the probe approach the sample after moving to the next measuring point, wherein high frequency/minute amplitude cantilever excitation and vibration detection are performed and further horizontal direction excitation or vertical/horizontal double direction excitation are performed to improve the sensitivity of contacting force detection on a slope of steep inclination. The method uses unit for inclining the probe in accordance with the inclination of a measurement target and a structure capable of absorbing or adjusting the orientation of the light detecting the condition of contact between the probe and sample after reflection on the cantilever, which varies a great deal depending on the inclination of the probe. | 09-18-2008 |
20100193686 | Electron Beam Exposure Or System Inspection Or Measurement Apparatus And Its Method And Height Detection Apparatus - An electron beam apparatus equipped with a height detection system includes an electron beam unit emitting an electron beam to the specimen, and a height detection system for detecting height of the specimen which is set on a table. The height detection system includes an illumination system configured to direct first and second beams of light through a mask with a multi-slit pattern to a surface of the specimen at substantially opposite azimuth angles and at substantially equal angles of incidence, first and second detectors which respectively detect first and second multi-slit images of the first and second beams reflected from the specimen and generate output signals thereof, and a device which receives the output signals and generates a comparison signal which is responsive to the height of the specimen. An objective lens of the electron beam unit is controlled in accordance with the comparison signal. | 08-05-2010 |
20100232846 | Image forming apparatus and method - An image forming apparatus including a fixing device having a first nip to fix toner to a recording medium; a conveyance device provided at a position downstream from the fixing device in a direction of conveyance of the recording medium to convey the recording medium further downstream; a guide member provided along a conveyance path of the recording medium between the fixing device and the conveyance device to contact and convey the recording medium from the fixing device to the conveyance device, the guide member having multiple through-holes formed therein and penetrating from a front surface of the guide member facing the conveyance path of the recording medium to a back surface of the guide member; and an airflow generator to generate an airflow through the multiple through-holes. | 09-16-2010 |
20130097739 | Cantilever of Scanning Probe Microscope and Method for Manufacturing the Same, Method for Inspecting Thermal Assist Type Magnetic Head Device and its Apparatus - To detect both of near-field light and magnetic field generated by a thermal assist type magnetic head and to perform inspection of the head, a cantilever of a scanning probe microscope has a lever in which a probe is formed, a thin magnetic film formed on a surface of the probe, and fine particles or thin film of noble metal or an alloy including noble metal formed on a surface of the magnetic film. An inspection apparatus has the cantilever, a displacement detection unit to detect vibration of the cantilever, a near-field light detection unit to detect scattered light caused by near-field light generated from a near-field light emitter and enhanced on the surface of the probe of the cantilever, and a processing unit to process signals obtained by detection with the displacement detection unit and the near-field light detection unit. | 04-18-2013 |
20130140445 | Multi-Point Measuring Method of FBG Sensor and Multi-Point Measuring Apparatus - A multi-point measuring apparatus of FBG sensor has an optical fiber, a wide-band wavelength light source, a light-source side light modulator for controlling time of a light entering into the optical fiber, among lights from this light source, a detector side light modulator for controlling time, during which a reflection light from a diffraction grating of the optical fiber penetrates through, a wavelength shift amount calculator for processing a signal obtained through detection of the reflection light from this light modulator, a temperature/distortion calculator for calculating an amount of deformation of a target to be measured from a result of this calculator, and a display portion for displaying information relating to the amount of deformation of this target to be measured. | 06-06-2013 |
20140092717 | METHOD AND APPARATUS FOR INSPECTING THERMAL ASSIST TYPE MAGNETIC HEAD - An apparatus for inspecting a thermal assist type magnetic head is constituted by a scanning probe microscope means including a cantilever having a probe with a magnetic film formed on the surface of a tip portion thereof; a probe unit which provides an alternating current to a terminal formed on the thermal assist type magnetic head element and causes a pulse drive current or pulse drive voltage; a scattered light detection means which scans the near-field light emitting part with the probe to detect the scattered light generated from the probe in the generation region of the near-field light; an imaging means which image the thermal assist type magnetic head element; and a signal process means inspects the thermal assist type magnetic head element and an output signal outputted from the scanning probe microscope means by scanning with the probe while providing an alternating current to the terminal. | 04-03-2014 |
Patent application number | Description | Published |
20100074164 | Communication Systems - A method for transmission of information about downlink and uplink parameters of a intermediate apparatus link in a multi-hop wireless communication system, the system comprising a first node apparatus, a second node apparatus and one or more intermediate apparatuses, each said apparatus being operable to transmit and receive information along a series of links forming a communication path for downlink and uplink communication, the communication path extending between the first node and second node apparatuses via the or each intermediate apparatus, each link comprising either a first node link between the first node apparatus and a said intermediate apparatus or an intermediate apparatus link between a said intermediate apparatus and a said apparatus which is not the first node apparatus, and the system having access to a minimum allocation unit for allocating time and transmission frequency bandwidth, the method comprising: obtaining values of downlink and uplink parameters for a particular intermediate apparatus link; mapping both values onto a single minimum allocation unit and transmitting them towards the first node apparatus. | 03-25-2010 |
20110222923 | IMAGE FORMING APPARATUS - A heating device includes a fixing member; a pressure member that comes in pressure contact with a surface of the fixing member; and a cleaning web unit. The cleaning web unit includes a contact roller that contacts the pressure member via a web that is impregnated with a lubricant agent, a supplying roller that supplies a new web, a roll-up roller that rolls up and retrieves the web that has been used for wiping off adhering matter from the pressure member, and a lubricant agent absorption member that absorbs the lubricant agent by contacting the web at a web path extending from the supplying roller to the contact roller. | 09-15-2011 |
20110229224 | Fixing unit and image forming apparatus using fixing unit - Disclosed is a fixing unit including a fixing member; a pressure member brought into press-contact with a front surface of the fixing member; a pressure mechanism that changes a position at which the pressure member is brought into press-contact with the fixing member, the pressure mechanism being capable of controlling a presence or absence and a width of the nip part; and a cleaning web unit having a contact roller brought into contact with at least the pressure member via a web, a supply roller that supplies a new web, and a winding roller that winds and collects the web having wiped off an attachment on the pressure roller. The contact roller is caused to move following a movement of the pressure mechanism to maintain a constant contact position, a constant contact direction, and a constant contact force thereof with respect to the pressure member. | 09-22-2011 |
20120269532 | Fixing Device And Image Forming Apparatus Incorporating Same - A fixing device includes a moving assembly that moves a second rotary body and an airflow guide between a first position and a second position, the first position where the second rotary body contacts a first rotary body to form a fixing nip therebetween through which a recording medium bearing an unfixed toner image is conveyed and a constant first interval between the second rotary body and the airflow guide is smaller than a variable second interval between the second rotary body and an exhaust duct, the second position where the second rotary body is isolated from the first rotary body and the constant first interval between the second rotary body and the airflow guide is equivalent to the variable second interval between the second rotary body and the exhaust duct. | 10-25-2012 |
20130216250 | DEVELOPMENT DEVICE AND IMAGE FORMING APPARATUS INCORPORATING SAME - A development device includes a developer bearer to carry by rotation developer to a development range facing a latent image bearer, and a developer regulator to adjust an amount of developer transported to the development range by the developer bearer. Multiple projections are formed in a surface of the developer bearer, and the developer bearer rotates in a reverse direction to a direction of rotation for image development while image development is not performed. The developer regulator includes a blade having a first end held by a regulator holder and a second end that contacts the multiple projections formed in the surface of the developer bearer and is disposed in a direction counter to the direction of rotation of the developer bearer for image development. | 08-22-2013 |
20140312886 | MAGNETIC PERMEABILITY DETECTOR, DEVELOPING DEVICE, IMAGE FORMING APPARATUS, AND OSCILLATION SIGNAL FREQUENCY CALCULATION METHOD THEREFOR - A magnetic permeability detector includes an LC oscillator circuit including a coil and a capacitor; and a resistor connected in series with the coil. | 10-23-2014 |
20160041495 | MAGNETIC PERMEABILITY DETECTOR, DEVELOPING DEVICE, IMAGE FORMING APPARATUS, AND OSCILLATION SIGNAL FREQUENCY CALCULATION METHOD THEREFOR - A magnetic permeability detector includes an LC oscillator circuit including a coil and a capacitor; and a resistor connected in series with the coil. | 02-11-2016 |
20160041497 | MAGNETIC PERMEABILITY DETECTOR, DEVELOPING DEVICE, IMAGE FORMING APPARATUS, AND OSCILLATION SIGNAL FREQUENCY CALCULATION METHOD THEREFOR - A magnetic permeability detector includes an LC oscillator circuit including a coil and a capacitor; and a resistor connected in series with the coil. | 02-11-2016 |
Patent application number | Description | Published |
20080286016 | REGENERATED ELASTIC ROLLER MANUFACTURING PROCESS, REGENERATED ELASTIC ROLLER, ELECTROPOHOTOGRAPHIC PROCESS CARTRIDGE, AND ELECTROPOHOTOGRAPHIC IMAGE FORMING APPARATUS - A regenerated elastic rollers manufacturing process is provided. The process includes the step of removing an agglutinated stain of toner adhered to the surface of an elastic roller including a mandrel and an elastic layer. The step further includes the steps of: (1) pressing a pressing roller against the surface of the elastic roller so as to crack the agglutinated stain on the surface of the elastic roller; and (2) removing the agglutinated stain cracked in the step (1) from the surface of the elastic roller by means of an adhesive roller. | 11-20-2008 |
20120195649 | REGENERATED ELASTIC ROLLER MANUFACTURING PROCESS, REGENERATED ELASTIC ROLLER, ELECTROPOHOTOGRAPHIC PROCESS CARTRIDGE, AND ELECTROPOHOTOGRAPHIC IMAGE FORMING APPARATUS - A regenerated elastic rollers manufacturing process is provided. The process includes the step of removing an agglutinated stain of toner adhered to the surface of an elastic roller including a mandrel and an elastic layer. The step further includes the steps of: (1) pressing a pressing roller against the surface of the elastic roller so as to crack the agglutinated stain on the surface of the elastic roller; and (2) removing the agglutinated stain cracked in the step (1) from the surface of the elastic roller by means of an adhesive roller. | 08-02-2012 |
20130236213 | ELECTRO-CONDUCTIVE MEMBER, PROCESS CARTRIDGE, AND ELECTROPHOTOGRAPHIC APPARATUS - To suppress an excessive reduction in resistance of an electro-conductive roller under an H/H environment and reduce a resistance value thereof under an L/L environment, provided is an electro-conductive member for electrophotography, comprising: an electro-conductive mandrel; and an electro-conductive layer provided on a periphery of the mandrel, wherein the electro-conductive layer contains a binder resin having an alkylene oxide structure, and a sulfo or a quaternary ammonium group as an ion exchange group, and an ion having polarity opposite to polarity of the ion exchange group, a water content of the electro-conductive layer under a temperature of 30° C. and a relative humidity of 80% is 10 mass % or less, and a spin-spin relaxation time of the electro-conductive layer, which is determined by pulse NMR measurement with a hydrogen core being a measurement core under a temperature of 15° C. and a relative humidity of 10%, is 200 μsec or more. | 09-12-2013 |
20130281275 | ELECTRICALLY CONDUCTING MEMBER FOR ELECTROPHOTOGRAPHY, PROCESS CARTRIDGE AND ELECTROPHOTOGRAPHIC IMAGE FORMING APPARATUS - To provide an electrically conducting member for electrophotography that has made itself kept from increasing in electrical resistance with time even in a low temperature and low humidity environment and also has made any ion conducting agent kept from bleeding to its surface. To also provide a process cartridge, and an electrophotographic image forming apparatus, that can stably form high-grade electrophotographic images over a long period of time in a variety of environments. The conductive member for electrophotography has an electrically conducting substrate and an electrically conducting layer, and the electrically conducting layer contains a resin having in the molecule at least one structure selected from structures represented by the formula (1), formula (2) and formula (3) each defined in the specification. The process cartridge and the electrophotographic image forming apparatus each make use of the same. | 10-24-2013 |
20130281276 | ELECTRICALLY CONDUCTIVE MEMBER, PROCESS CARTRIDGE AND ELECTROPHOTOGRAPHIC APPARATUS - An electrically conductive member for electrophotography is provided which has an electrically conductive mandrel and an electrically conductive layer on the peripheral surface of the mandrel; the electrically conductive layer containing a binder resin having as an ion exchange group a sulfo group or a quaternary ammonium salt group in the molecule and an ion with a polarity opposite to that of the ion exchange group; the binder resin further having any structure selected from the group consisting of structures represented by formulas (1)-1 to (1)-3, and any structure selected from the group consisting of structures represented by formulas (2)-1 and (2)-2, and having a molecular structure that prevents any matrix-domain structure from being formed in the electrically conductive layer. | 10-24-2013 |
20130315620 | ELECTRO-CONDUCTIVE MEMBER FOR ELECTROPHOTOGRAPHY, PROCESS CARTRIDGE, AND ELECTROPHOTOGRAPHIC APPARATUS - An electro-conductive member for electrophotography, including an electro-conductive mandrel and an electro-conductive layer; and a process cartridge and an electrophotographic apparatus using the same. The layer contains a binder resin having a sulfo or a quaternary ammonium group as an ion exchange group, and an ion opposite in polarity to the ion exchange group. The resin has any one of structures represented by formulas (1)-1 and (1)-2, and any one of structures represented by formulas (2)-1 to (2)-3; and the resin has a molecular structure preventing occurrence of a matrix-domain structure. M represents an integer of 2-20, n represents an integer of 5-50, p represents an integer of 1-25, q represents an integer of 1-15, and r represents an integer of 1-12. | 11-28-2013 |
20140287899 | ELECTROPHOTOGRAPHIC MEMBER, PROCESS CARTRIDGE AND ELECTROPHOTOGRAPHIC APPARATUS - An electrophotographic member is provided in which conductivity barely reduces and sufficient conductivity is obtained even under a low temperature and low humidity environment, a reduction in resistance beyond necessity is readily suppressed even under a high temperature and high humidity environment, and the bleeding of the quaternary ammonium salt can be suppressed. There is provided an electrophotographic member including an electroconductive mandrel and an electroconductive layer, wherein the electroconductive layer includes a resin having at least one of a structure represented by the following formula (1) and a structure represented by the following formula (2) in the molecule, and an anion: | 09-25-2014 |
20150132024 | ELECTROCONDUCTIVE MEMBER FOR ELECTROPHOTOGRAPHY, PROCESS CARTRIDGE, AND ELECTROPHOTOGRAPHIC APPARATUS - It is an object of the present invention to provide an electroconductive member for electrophotography capable of suppressing image density unevenness caused by the adhesion of foreign matter. Provided is an electroconductive member for electrophotography, including at least: an electroconductive support, and a surface layer formed on an outer side of the electroconductive support, in which the surface layer includes a porous body, and in which the porous body satisfies the following conditions (1) to (3): (1) the porous body has a co-continuous structure including at least a skeleton that is three-dimensionally continuous and a pore that is three-dimensionally continuous; (2) the porous body has electroconductivity; and (3) an average diameter of a maximum inscribed circle of an opening of the pore on a surface of the porous body is 3 μm or more and 8 μm or less. | 05-14-2015 |
20150198905 | ELECTROCONDUCTIVE MEMBER FOR ELECTROPHOTOGRAPHY, PROCESS CARTRIDGE, AND ELECTROPHOTOGRAPHIC APPARATUS - Provided is an electroconductive member configured to suppress a void image caused by abnormal discharge and a horizontal streak-like image caused by downstream discharge without depending on the thickness of a photosensitive layer of a photosensitive drum over a long period of time. The electroconductive member for electrophotography comprises at least an electroconductive support and a surface layer formed on an outer side of the electroconductive support. The surface layer includes a porous body and satisfies the predetermined (1), (2), and (3). | 07-16-2015 |
20150277244 | ELECTROPHOTOGRAPHIC IMAGE FORMING APPARATUS - Provided an electrophotographic image forming apparatus comprising an electrophotographic photosensitive member and a charging member. The electrophotographic photosensitive member includes a charge transport layer as a surface layer having a matrix-domain structure including specific resins. The charging member comprises an electro-conductive substrate, and an electro-conductive elastic layer. The electro-conductive elastic layer comprises a binder, and holding a bowl-shaped resin particle having an opening, so that at least a part of the bowl-shaped resin particle is exposed, and the charging member has a concavity derived from the opening of the bowl-shaped resin particle on the surface thereof, and a protrusion derived from an edge of the opening of the bowl-shaped resin particle on the surface thereof. | 10-01-2015 |
20160062259 | CHARGING MEMBER, PROCESS CARTRIDGE, AND ELECTROPHOTOGRAPHIC APPARATUS - A charging member includes an electro-conductive substrate and an electro-conductive resin layer. The electro-conductive resin layer contains a binder, a plurality of bowl-shaped resin particles, and a plurality of hollow particles. The charging member has a surface having recesses due to openings of the bowl-shaped resin particles and protrusions due to edges of the openings of the bowl-shaped resin particles, where the positional relationship between one bowl-shaped resin particle and the hollow particles lying in the vicinity of the bowl-shaped resin particle is that the number of the hollow particles being in the space under the bowl-shaped resin particle in a predetermined depth is at least four in average. | 03-03-2016 |
Patent application number | Description | Published |
20120063963 | SELECTIVE CO METHANATION CATALYST, METHOD OF PRODUCING THE SAME, AND APPARATUS USING THE SAME - Provided is a new catalyst capable of removing carbon monoxide economically without adding particular reaction gas externally. Also provided are a process for producing and an apparatus using such a catalyst. Impregnation of a Ni—Al composite oxide precursor of a nonstoichiometric composition prepared by the solution-spray plasma technique with a ruthenium salt to be supported and performing reduction treatment allows CO methanation reaction to selectively proceed even in the high-temperature range in which CO | 03-15-2012 |
20120295184 | HIGH-POTENTIAL STABLE OXIDE SUPPORT FOR POLYMER ELECTROLYTE FUEL CELL - Disclosed is an oxide and/or nitride support for electrode catalysts, which is used for electrodes for polymer electrolyte fuel cells (PEFC). The support for electrode catalysts is an aggregation body of primary particles of oxide of at least one kind of metal selected from rare earths, alkaline earths, transition metals, niobium, bismuth, tin, antimony, zirconium, molybdenum, indium, tantalum, and tungsten, and the aggregation body is configured such that at least 80% of the metal oxide primary particles having a size of 5 nm to 100 nm aggregate and bind each other to form dendritic or chain structures each of which is made of 5 or more of the metal oxide primary particles. | 11-22-2012 |
20130071318 | FUEL REFORMER, SELECTIVE CO METHANATION METHOD, SELECTIVE CO METHANATION CATALYST, AND PROCESS FOR PRODUCING THE SAME - Provided is a catalyst for fuel reformation that causes carbon monoxide contained in hydrogen gas, which is produced from a variety of hydrocarbon fuels, to react with hydrogen and thereby to be transformed into methane, while inhibiting methanation of carbon dioxide contained in the hydrogen gas. The selective CO methanation catalyst includes at least one of a halogen, an inorganic acid, and a metal oxo-acid adsorbed or bonded as a carbon dioxide reaction inhibitor to a carbon monoxide methanation active component. | 03-21-2013 |
20150064601 | HIGH-MOLECULAR-WEIGHT ELECTROLYTE AND USE THEREOF - The present invention aims to provide a hydrocarbon-based polymer electrolyte which is excellent in processability and proton conductivity, especially proton conductivity at low water content, and a membrane thereof. The polymer electrolyte contains, in its main chain, a repeating unit represented by the following formula (1): | 03-05-2015 |
20150246347 | CO-SELECTIVE METHANATION CATALYST - The first object is to increase the life of a selective CO methanation catalyst, and the second object is to enhance the CO removal rate of a selective CO methanation catalyst to reduce the outlet CO concentration in a wide temperature range. Provided a selective CO methanation catalyst including a supported metal catalyst which selectively methanizes CO in a hydrogen-rich gas containing CO and CO | 09-03-2015 |
20150295252 | Metallic Separator for Fuel Cells and Method of Manufacturing the Metallic Separator - A metallic separator for fuel cells having a metal plate, an electroconductive coating layer covering at least a surface in front and back surfaces of the metal plate which contacts a raw material and/or a reaction product, and an electroconductive channel-forming member disposed on a surface of the coating layer and forming a channel for the raw material and/or the reaction product and/or a channel for a cooling medium for cooling. A surface layer on the metal plate has a tensile residual stress within such a range that no stress-corrosion cracking occurs. | 10-15-2015 |
20160087285 | PRODUCTION METHOD FOR FINE METAL PARTICLES, PRODUCTION METHOD FOR FUEL CELL ELECTRODE CATALYST, SUPPORTED FINE METAL PARTICLE CATALYST, AND FUEL CELL ELECTRODE CATALYST - Provided is a method for efficiently manufacturing fine metal particles applicable as a fuel cell electrode catalyst. Provided is a method of manufacturing fine metal particles, including the step of: a hydrogen bubbling step to perform bubbling to a reaction solution, wherein: the reaction solution is prepared by allowing seeds of fine metal particles in a dispersed state and a water soluble noble metal precursor to co-exist in a water-containing solvent; and the bubbling is performed with a reaction gas containing a hydrogen gas, is provided. | 03-24-2016 |
Patent application number | Description | Published |
20120136621 | VELOCITY MEASUREMENT APPARATUS CAPABLE OF ACCURATELY MEASURING VELOCITY OF MOVING OBJECT RELATIVE TO GROUND SURFACE - A velocity measurement apparatus comprising: first and second surface profile sensors for acquiring first and second surface profile data, a memory for storing the first and second surface profile data, and a calculation unit for calculating a velocity of a moving object. Each surface profile sensors acquires the corresponding surface profile data by measuring signal levels of reflected waves corresponding to a radio wave emitted to a ground surface and then reflected from structures on the ground surface, and measuring propagation durations from the emission of the radio wave to the return of the respective reflected waves. The calculation unit compares the first and second surface profile data, determines a difference between their measurement times, and divides a distance between the first and second surface profile sensors by the difference between the measurement times to calculate the velocity of the moving object. | 05-31-2012 |
20130205454 | SCANNING PROBE MICROSCOPE - In the case of measuring a pattern having a steep side wall, a probe adheres to the side wall by the van der Waals forces acting between the probe and the side wall when approaching the pattern side wall, and an error occurs in a measured profile of the side wall portion. When a pattern having a groove width almost equal to a probe diameter is measured, the probe adheres to both side walls, the probe cannot reach the groove bottom, and the groove depth cannot be measured. When the probe adheres to a pattern side wall in measurements of a microscopic high-aspect ratio pattern using an elongated probe, the probe is caused to reach the side wall bottom by detecting the adhesion of the probe to the pattern side wall, and temporarily increasing a contact force between the probe and the sample. Also, by obtaining the data of the amount of torsion of a cantilever with the shape data of the pattern, a profile error of the side wall portion by the adhesion is corrected by the obtained data of the amount of torsion. | 08-08-2013 |
20130300609 | VEHICLE INCLINATION DETECTING DEVICE - In a vehicle inclination detecting device, a receiving unit includes a switching unit for alternately switching between a received signal from a first receiving antenna and a received signal from a second receiving antenna to alternately output the received signals to an orthogonal detector. The orthogonal detector carries out orthogonal detection on each of the two received signals from the switching unit and an oscillating signal from an oscillator by using an identical line. | 11-14-2013 |
20140036265 | POSITION MEASURMENT APPARATUS FOR MEASURING POSITION OF MOBILE OBJECT ON THE BASIS OF REFELECTED WAVE - A reflector apparatus includes reflectors, which respectively radiate reflected waves in predetermined polarization directions. A polarized wave information reading circuit fixed to a moving body radiates a radio wave toward the reflecting apparatus from a transmitting antenna, receives reflected waves from the reflecting apparatus, and generates a received level difference signal that corresponds to a polarization direction of the received reflected waves. A position calculating circuit calculates a position of the polarized wave information reading circuit based on the received level difference signal. | 02-06-2014 |
20140165237 | Scanning Probe Microscope and Measurement Method Using Same - Disclosed is a measurement method of a scanning probe microscope based upon a measurement method of a scanning probe microscope for observing a shape and an optical property of a sample by exciting near-field light, scanning relative positions of the near-field light and the sample and detecting scattered light by the sample of the near-field light and having a characteristic that the near-field light is modulated to periodically vary the relative positions of the near-field light and the sample and that a frequency of modulation applied to the near-field light and an interference signal generated at a frequency for varying the relative positions of the near-field light and the sample are selectively extracted. | 06-12-2014 |
20140200729 | POWER SYSTEM STATE ESTIMATION DEVICE AND POWER SYSTEM USING SAME - A power state of any point of a power system is estimated with high accuracy to appropriately perform monitoring of the state of the entire power system. A power system state estimation device is provided which includes a power system data database which holds node information indicative of positions in the power system and facility information including sensors in association with each other, a sensor data database which holds the output of the sensors, an estimation environment setting unit which determines a sensor to be used when a power state at a particular node is estimated, using the information of the power system data database, and a state estimation unit which in correspondence to the sensor used at the particular node determined by the estimation environment setting unit, obtains the output of the sensor from the sensor data database and performs state estimation for the entire power system. | 07-17-2014 |
20140239900 | LEAD STORAGE BATTERY SYSTEM - This invention reduces degradation of respective lead storage batteries making up a lead storage battery bank and extends the longevity of the lead storage batteries. A lead storage battery system includes an individual battery state measurement unit | 08-28-2014 |
20140316599 | CONSUMER ENERGY MANAGEMENT SYSTEM AND CONSUMER ENERGY MANAGEMENT METHOD - The present invention adjusts the operating status of consumer devices in a manner meeting the consumer's needs when the electric power usable by the consumer is limited. There are provided: an information acquisition part (S | 10-23-2014 |
20150105872 | RELIABILITY CALCULATION DEVICE AND METHOD - A technique for calculating the reliability of a control instruction with high precision is provided. A reliability calculation device that calculates reliability of a control instruction given to a control device which executes a control according to the control instruction includes an instruction acquisition unit, an information acquisition unit, and a reliability calculation unit. The instruction acquisition unit acquires the control instruction to the control device. The information acquisition unit acquires relevant information relevant to the control which is executed by the control device. The reliability calculation unit calculates the reliability of a target control instruction which is the control instruction to be calculated in reliability, on the basis of the relevant information relevant to the control of the target control instruction, which is acquired by the information acquisition unit in association with the target control instruction to be acquired by the instruction acquisition unit, and the target control instruction. | 04-16-2015 |
20150177276 | Scanning Probe Miscroscope - A scanning probe microscope includes a support member, a light source, and a near-field light detection sensor. The support member supports a probe. The light source causes excitation light to enter the support member. The near-field light detection sensor detects near-field light which is generated at a top of the probe by plasmon excited by the excitation light entering the support member and which is scattered from a surface of a measurement object. A microstructure that guides the excitation light to an excitation point of the plasmon is provided at a portion, which is irradiated with the excitation light, of the support member. | 06-25-2015 |
20150241206 | SHAPE MEASURING METHOD AND DEVICE - The purpose of the present invention is to provide a shape inspection device that improves, without making the device larger, durability and measurement precision by measuring a plurality of points with a single distance sensor. The present invention provides a shape measuring device that measures the shape of an object to be measured and that comprises: a distance sensor that calculates the distance to the object to be measure by irradiating a measurement light toward the object to be measured and detecting the reflected light from the object to be measured; a separating unit that separates the measurement light from the distance sensor into a plurality of measurement light rays to be irradiated onto a plurality of measuring points; and a selecting unit that selects, from the plurality of measurement light beams separated by the separating unit, the measurement light to irradiate the object to be measured. | 08-27-2015 |
20150286227 | VOLTAGE ADJUSTMENT DEVICE FOR POWER DISTRIBUTION SYSTEM, VOLTAGE ADJUSTING METHOD, AND POWER CONTROL SYSTEM - A voltage adjustment device, a voltage adjusting method and a power control system for a distribution system are provided, in which the voltage adjustment device and a static var compensator are appropriately operated in a coordinated manner and the sustention of voltage and the enhancement of the operation efficiency are attained. A voltage adjustment device for a distribution system is installed in the distribution system including a static var compensator on an end side and controls a secondary voltage to be within a predetermined limit value by adjusting a tap position. The voltage adjustment device includes a first unit configured to estimate the secondary voltage; a second unit configured to obtain a corrected voltage by correcting the estimated secondary voltage by using a correction amount obtained from an output of the static var compensator; and a third unit configured to compare the corrected voltage with the predetermined limit value and operate the tap position when the corrected voltage deviates from the predetermined limit value. | 10-08-2015 |
20150340862 | CONTROL COMMAND APPARATUS, POWER SYSTEM CONTROL SYSTEM AND CONTROL COMMAND METHOD - A control command apparatus in a power system selecting a measuring apparatus according to a power system state, includes: a measuring apparatus extraction unit ( | 11-26-2015 |
20160033548 | INSPECTION METHOD AND ITS APPARATUS FOR THERMAL ASSIST TYPE MAGNETIC HEAD ELEMENT - To detect near-field light, which is generated by a thermal assist type magnetic head element, and leaking light with high sensitivity and to more accurately obtain the spatial intensity distribution of a near-field light generation area, an inspection apparatus for a thermal assist type magnetic head element is adapted so that a distance between a cantilever and the surface of a specimen and the excitation amplitude of the cantilever are set to be small to detect near-field light with high sensitivity by the suppression of an influence of other light components, a distance between the cantilever and the surface of the specimen and the excitation amplitude of the cantilever are set to be large to detect other light components present in the vicinity of near-field light with high sensitivity by the suppression of an influence of the amount of detected near-field light when other light components are measured. | 02-04-2016 |
Patent application number | Description | Published |
20120298998 | METHOD FOR FORMING OXIDE SEMICONDUCTOR FILM, SEMICONDUCTOR DEVICE, AND METHOD FOR MANUFACTURING SEMICONDUCTOR DEVICE - The impurity concentration in the oxide semiconductor film is reduced, and a highly reliability can be obtained. | 11-29-2012 |
20120312681 | SPUTTERING TARGET, METHOD FOR MANUFACTURING SPUTTERING TARGET, AND METHOD FOR FORMING THIN FILM - There have been cases where transistors formed using oxide semiconductors are inferior in reliability to transistors formed using amorphous silicon. Thus, in the present invention, a semiconductor device including a highly reliable transistor formed using an oxide semiconductor is manufactured. An oxide semiconductor film is deposited by a sputtering method, using a sputtering target including an oxide semiconductor having crystallinity, and in which the direction of the c-axis of a crystal is parallel to a normal vector of the top surface of the oxide semiconductor. The target is formed by mixing raw materials so that its composition ratio can obtain a crystal structure. | 12-13-2012 |
20120325650 | SPUTTERING TARGET, METHOD FOR MANUFACTURING SPUTTERING TARGET, AND METHOD FOR FORMING THIN FILM - There have been cases where transistors formed using oxide semiconductors are inferior in reliability to transistors formed using amorphous silicon. Thus, in the present invention, a semiconductor device including a highly reliable transistor formed using an oxide semiconductor is manufactured. An oxide semiconductor film is deposited by a sputtering method, using a sputtering target including an oxide semiconductor having crystallinity, and in which the direction of the c-axis of a crystal is parallel to a normal vector of the top surface of the oxide semiconductor. The target is formed by mixing raw materials so that its composition ratio can obtain a crystal structure. | 12-27-2012 |
20130011962 | SPUTTERING TARGET, METHOD FOR MANUFACTURING SPUTTERING TARGET, AND METHOD FOR FORMING THIN FILM - There have been cases where transistors formed using oxide semiconductors are inferior in reliability to transistors formed using amorphous silicon. Thus, in the present invention, a semiconductor device including a highly reliable transistor formed using an oxide semiconductor is manufactured. An oxide semiconductor film is deposited by a sputtering method, using a sputtering target including an oxide semiconductor having crystallinity, and in which the direction of the c-axis of a crystal is parallel to a normal vector of the top surface of the oxide semiconductor. The target is formed by mixing raw materials so that its composition ratio can obtain a crystal structure. | 01-10-2013 |
20130043465 | SEMICONDUCTOR DEVICE - An oxide semiconductor transistor comprising an oxide semiconductor layer with high conductivity is provided. A semiconductor device including an oxide semiconductor layer comprising an oxide containing indium, gallium, and zinc (IGZO) and a particle of indium oxide; a gate electrode overlapping with a channel formation region in the oxide semiconductor layer with a gate insulating film interposed therebetween; and a source electrode and a drain electrode overlapping with a source region and a drain region in the oxide semiconductor layer. The semiconductor device may be a top-gate oxide semiconductor transistor or a bottom-gate oxide semiconductor transistor. The oxide semiconductor layer may be formed over or below the source electrode and the drain electrode. | 02-21-2013 |
20130075735 | SEMICONDUCTOR DEVICE AND METHOD FOR MANUFACTURING THE SAME - A metal oxide layer is in contact with an interlayer insulating layer covering a transistor, and has a stacked-layer structure including a first metal oxide layer having an amorphous structure and a second metal oxide layer having a polycrystalline structure. In the first metal oxide layer, there are no crystal grain boundaries, and grid intervals are wide as compared to those in a metal oxide layer in a crystalline state; thus, the first metal oxide layer easily traps moisture between the lattices. In the second metal oxide layer having a polycrystalline structure, crystal parts other than crystal grain boundary portions have dense structures and extremely low moisture permeability. Thus, the structure in which the metal oxide layer including the first metal oxide layer and the second metal oxide layer is in contact with the interlayer insulating layer can effectively prevent moisture permeation into the transistor. | 03-28-2013 |
20130320337 | SEMICONDUCTOR DEVICE - A highly reliable semiconductor device that includes a transistor including an oxide semiconductor, which can display a high-definition image and can be manufactured with a high yield. The semiconductor device includes a pixel portion including a plurality of pixels, a gate signal line driver circuit portion, and a source signal line driver circuit portion including a first circuit that controls timing of sampling video signals and a second circuit that samples the video signals in accordance with the timing and then inputs the sampled video signals to the pixels. The second circuit includes a plurality of transistors in each of which an oxide semiconductor stacked layer is used as a channel formation region, the first circuit and the second circuit are electrically connected to each other by a wiring, and the wiring is electrically connected to gates of at least two transistors of the plurality of transistors. | 12-05-2013 |
20140103335 | SEMICONDUCTOR DEVICE - Stable electrical characteristics of a transistor including an oxide semiconductor layer are achieved. A highly reliable semiconductor device including the transistor is provided. The semiconductor device includes a multilayer film formed of an oxide layer and an oxide semiconductor layer, a gate insulating film in contact with the oxide layer, and a gate electrode overlapping with the multilayer film with the gate insulating film interposed therebetween. The oxide layer contains a common element to the oxide semiconductor layer and has a large energy gap than the oxide semiconductor layer. The composition between the oxide layer and the oxide semiconductor layer gradually changes. | 04-17-2014 |
20140326997 | SEMICONDUCTOR DEVICE - A highly reliable semiconductor device that includes a transistor including an oxide semiconductor, which can display a high-definition image and can be manufactured with a high yield. The semiconductor device includes a pixel portion including a plurality of pixels, a gate signal line driver circuit portion, and a source signal line driver circuit portion including a first circuit that controls timing of sampling video signals and a second circuit that samples the video signals in accordance with the timing and then inputs the sampled video signals to the pixels. The second circuit includes a plurality of transistors in each of which an oxide semiconductor stacked layer is used as a channel formation region, the first circuit and the second circuit are electrically connected to each other by a wiring, and the wiring is electrically connected to gates of at least two transistors of the plurality of transistors. | 11-06-2014 |
20150380364 | SEMICONDUCTOR DEVICE AND METHOD FOR MANUFACTURING THE SAME - A metal oxide layer is in contact with an interlayer insulating layer covering a transistor, and has a stacked-layer structure including a first metal oxide layer having an amorphous structure and a second metal oxide layer having a polycrystalline structure. In the first metal oxide layer, there are no crystal grain boundaries, and grid intervals are wide as compared to those in a metal oxide layer in a crystalline state; thus, the first metal oxide layer easily traps moisture between the lattices. In the second metal oxide layer having a polycrystalline structure, crystal parts other than crystal grain boundary portions have dense structures and extremely low moisture permeability. Thus, the structure in which the metal oxide layer including the first metal oxide layer and the second metal oxide layer is in contact with the interlayer insulating layer can effectively prevent moisture permeation into the transistor. | 12-31-2015 |
20160079433 | SEMICONDUCTOR DEVICE AND MANUFACTURING METHOD THEREOF - To provide a semiconductor device including an oxide semiconductor, which has stable electric characteristics and has high reliability. To provide a method for manufacturing the semiconductor device. The semiconductor device includes a gate electrode, a gate insulating film formed over the gate electrode, an oxide semiconductor film formed over the gate insulating film, a source electrode and a drain electrode formed over the oxide semiconductor film, and a protective film. The protective film includes a metal oxide film, and the metal oxide film has a film density of higher than or equal to 3.2 g/cm | 03-17-2016 |
20160111053 | SEMICONDUCTOR DEVICE - A highly reliable semiconductor device that includes a transistor including an oxide semiconductor, which can display a high-definition image and can be manufactured with a high yield. The semiconductor device includes a pixel portion including a plurality of pixels, a gate signal line driver circuit portion, and a source signal line driver circuit portion including a first circuit that controls timing of sampling video signals and a second circuit that samples the video signals in accordance with the timing and then inputs the sampled video signals to the pixels. The second circuit includes a plurality of transistors in each of which an oxide semiconductor stacked layer is used as a channel formation region, the first circuit and the second circuit are electrically connected to each other by a wiring, and the wiring is electrically connected to gates of at least two transistors of the plurality of transistors. | 04-21-2016 |