Patent application number | Description | Published |
20100138167 | FLOW RATE MEASUREMENT APPARATUS, PROGRAM THEREOF, FLOW RATE MEASUREMENT METHOD, AND FLUID SUPPLY SYSTEM - There is provided a technique for accurately identifying an appliance which uses the fluid from a viewpoint of the range of a change in flow rate value. An ultrasonic flow rate measuring device | 06-03-2010 |
20100319464 | ULTRASONIC FLOWMETER - It is desirable that an operation of an oscillator used for measuring propagation time of ultrasonic waves in an ultrasonic flowmeter be an intermittent operation in order to achieve electric power savings. However, pulse stability of the oscillator requires time, so that there is a problem that the intermittent operation cannot be performed. An ultrasonic flowmeter comprising an oscillator | 12-23-2010 |
20110004423 | FLOWMETER - Detecting a leak, or the like, with high accuracy on the basis of pressure and a flow volume acquired during use of fluid is made possible. A volume of gas flowing through a flow path | 01-06-2011 |
20110010111 | FLOWMETER - Detecting a leak, or the like, with high accuracy on the basis of pressure and a flow volume acquired during use of fluid is made possible. | 01-13-2011 |
20110238332 | FLOW MEASUREMENT DEVICE - To find the propagation time of an ultrasonic wave, a difference occurs between the waveforms received upstream and downstream in a portion where the reception amplitude is comparatively large and it is prevented from being detected as an error of the propagation time. A reception signal is amplified in a reception unit | 09-29-2011 |
Patent application number | Description | Published |
20140306655 | CONTACTLESS BATTERY CHARGER - A contactless battery charger includes a power feeding device having a power feeding coil to generate a magnetic flux using an inputted alternating current and a power receiving device having a power receiving coil disposed so as to confront the power feeding coil. The contactless battery charger supplies an electric power using electromagnetic induction between the power feeding coil and the power receiving coil. Each of the power feeding coil and the power receiving coil is formed by winding a litz wire made up of element wires. A width of the litz wire of the power feeding coil is smaller than a width of the litz wire of the power receiving coil in a first direction along opposing faces of the power feeding and receiving coils. The power receiving coil has an external diameter greater than or equal to that of the power feeding coil. | 10-16-2014 |
20140354073 | POWER FEED DEVICE OF INDUCTIVE CHARGING DEVICE - A power feeding device of a non-contact charging device includes a power factor improvement circuit which converts an AC power supply to DC, and improves a power factor, a smoothing capacitor connected to an output end of the power factor improvement circuit, an inverter circuit which includes a plurality of switching elements, and generates an AC signal using a voltage of the smoothing capacitor as a power supply, a power feeding section which feeds power based on the AC signal to a power receiving device, and a control circuit which modulates at least one of a duty factor or an operation frequency of each of the switching elements of the inverter circuit in synchronization with the AC power supply. | 12-04-2014 |
20140354074 | POWER FEED DEVICE OF INDUCTIVE CHARGING DEVICE - A power feeding device of a non-contact charging device includes a power factor improvement circuit which converts an AC power supply to DC, and improves a power factor, a smoothing capacitor connected to an output end of the power factor improvement circuit, an inverter circuit which includes a plurality of switching elements, and generates an AC signal using a voltage of the smoothing capacitor as a power supply, a power feeding section which feeds power based on the AC signal to a power receiving device, and a control circuit which modulates a duty factor of each of the switching elements of the inverter circuit in synchronization with the AC power supply, wherein the control circuit controls the plurality of switching elements so that an increment of the modulated duty factor is not equal to a decrement of the modulated duty factor. | 12-04-2014 |
20150332826 | NONCONTACT ELECTRIC POWER TRANSMISSION EQUIPMENT - Disclosed is a noncontact power transmission system including a power transmission device for transmitting power to a power receiving device in a noncontact manner. The power transmission device includes a cover covering a portion of an outline of the power transmission device where the power transmission device faces the power receiving device, a base covering another portion of the outline of the power transmission device where the power transmission device does not face the power receiving device, a magnetic body arranged in a space enclosed with the cover and the base, a coil bobbin covering the magnetic body partially or entirely, and a coil wire which is wound around the coil bobbin and which generates a magnetic flux upon receiving an alternating current. The coil bobbin includes a load support. | 11-19-2015 |
20150332827 | NON-CONTACT POWER TRANSMISSION SYSTEM - A non-contact power transmission system according to the present disclosure transmits electric power from a power transmitting coil to a power receiving coil via a non-contact method by utilizing electromagnetic induction. At least one of the power transmitting coil and the power receiving coil includes first and second coils. A wire is wound around the first coil. The second coil is placed at at least one end of the winding axis of the first coil. Another the wire is wound around the second coil. The second coil is arranged such that magnetic fluxes generated along respective winding axes of the first and second coils are oriented in opposite directions. | 11-19-2015 |
20150332847 | NON-CONTACT POWER TRANSMISSION SYSTEM - A non-contact power transmission system according to the present disclosure includes a power transmitting coil and a power receiving coil facing the power transmitting coil. At least one of the power transmitting coil and the power receiving coil includes a first coil in which a wire is wound around a first core, and a second coil in which a wire is wound around a second core. The second coil is placed at at least one end of a winding axis of the first coil. A winding axis of the second coil is inclined with respect to the winding axis of the first coil toward the power transmitting or receiving coil that faces the second coil. | 11-19-2015 |
20150332848 | COIL FOR NON-CONTACT POWER TRANSMISSION SYSTEM AND NON-CONTACT POWER TRANSMISSION SYSTEM - A coil for a non-contact power transmission system according to the present disclosure is used in a non-contact power transmission system to transmit electric power via a non-contact method. The coil includes a magnetic body with a flat cross section, and a wire wound around the magnetic body. The wire is wound around a shorter side surface of the magnetic body at a predetermined angle with respect to a direction perpendicular to a longer side surface of the magnetic body. | 11-19-2015 |
20150332849 | COIL FOR NON-CONTACT POWER TRANSMISSION SYSTEM AND NON-CONTACT POWER TRANSMISSION SYSTEM - A coil for a non-contact power transmission system according to the present disclosure is used in a non-contact power transmission system to transmit electric power via a non-contact method. The coil includes a first coil in which a wire is wound around at a center of a core; and a second coil placed at an end of the core, and wound with the wire. Winding axes of the first and second coils are oriented in different directions. | 11-19-2015 |