Teshigahara
Akihiko Teshigahara, Kariya-City JP
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20160064645 | PIEZOELECTRIC THIN FILM AND METHOD FOR PRODUCING THE SAME - A piezoelectric thin film is formed through sputtering and consists essentially of scandium aluminum nitride. The carbon atomic content is 2.5 at % or less. When producing the piezoelectric thin film, scandium and aluminum are sputtered simultaneously on a substrate from a scandium aluminum alloy target material having a carbon atomic content of 5 at % or less in an atmosphere where at least nitrogen gas exists. The sputtering may be conducted also by applying an ion beam on an opposing surface of the alloy target material at an oblique angle. Moreover, aluminum and scandium may be also sputtered simultaneously on the substrate from an Sc target material and an Al target material. As a result, a piezoelectric thin film which exhibits excellent piezoelectric properties and a method for the same can be provided. | 03-03-2016 |
Akihiko Teshigahara, Nisshin-City JP
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20100186514 | Surface acoustic wave pressure sensor - A sensor chip has a substrate and a comb-teeth electrode arranged on the substrate. The sensor chip is fixed to a diaphragm structure to be distorted by receiving pressure, and is fixed to the diaphragm structure only through a predetermined fix area so as to detect the pressure. The fix area is defined on only a part of the sensor chip opposing to the diaphragm structure. The sensor chip is restrained by the diaphragm structure in a direction of transmitting surface acoustic wave. Flexibility of the sensor chip in a perpendicular direction approximately perpendicular to the wave transmitting direction is larger than that in the transmitting direction. | 07-29-2010 |
20120000766 | METHOD FOR MANUFACTURING SCANDIUM ALUMINUM NITRIDE FILM - A method for manufacturing a scandium aluminum nitride film includes: sputtering a scandium aluminum alloy target under atmosphere including nitrogen gas so that a thin film is deposited on a substrate. Since the scandium aluminum nitride film is manufactured with using one alloy target, a composition of the film is maintained even when the sputtering time is long. Further, the above method is capable of being performed by a mass production sputtering apparatus. | 01-05-2012 |
20150357551 | SURFACE ACOUSTIC WAVE SENSOR - A surface acoustic wave (SAW) sensor includes a surface acoustic wave material and a comb-teeth electrode. The surface acoustic wave material is to be arranged at a place where the surface acoustic wave material is distorted by physical quantity such as stress. The comb-teeth electrode is arranged on the surface of the surface acoustic wave material to excite a surface acoustic wave to the surface acoustic wave material. The surface acoustic wave material has a sapphire board and a ScAlN film arranged on a surface of the sapphire board. | 12-10-2015 |
20160025580 | PRESSURE SENSOR - An antenna unit having an antenna coil pattern is disposed in a casing. A sensor unit has a surface acoustic wave detecting element including a first sensing electrode that generates and receives a surface acoustic wave and a first reflector that reflects the surface acoustic wave, which are provided on a substrate configured of a piezoelectric material, and a sensor coil pattern electrically connected to the first sensing electrode and coupled to the antenna coil pattern. The sensor unit is disposed in a pressure receiving portion, and a signal is transmitted between the sensor unit and the antenna unit by wireless communication resulting from a coil coupling. | 01-28-2016 |
Akihiko Teshigahara, Aichi JP
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20080296529 | Piezoelectric thin film, piezoelectric material, and fabrication method of piezoelectric thin film and piezoelectric material, and piezoelectric resonator, actuator element, and physical sensor using piezoelectric thin film - A piezoelectric thin film of the present invention includes an aluminum nitride thin film that contains scandium. A content ratio of scandium in the aluminum nitride thin film is 0.5 atom % to 50 atom % on the assumption that a total amount of the number of scandium atoms and the number of aluminum atoms is 100 atom %. According to this arrangement, the piezoelectric thin film of the present invention can improve a piezoelectric response while keeping characteristics of elastic wave propagation speed, Q value, and frequency-temperature coefficient that the aluminum nitride thin film has. | 12-04-2008 |
Akihiko Teshigahara, Aichi-Ken JP
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20120107557 | MANUFACTURING METHOD OF PIEZOELECTRIC-BODY FILM, AND PIEZOELECTRIC-BODY FILM MANUFACTURED BY THE MANUFACTURING METHOD - A method for manufacturing a piezoelectric thin film including an aluminum nitride thin film containing scandium on a substrate, the method includes: sputtering step for sputtering aluminum and scandium under an atmosphere containing at least a nitrogen gas. In the sputtering step in the method according to the present invention, a scandium content rate falls within the range from 0.5% by atom to 50% by atom when a temperature of the substrate falls within the range from 5° C. to 450° C. during the sputtering step. | 05-03-2012 |
Akihiko Teshigahara, Nisshin-Shi JP
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20090133495 | Yaw rate sensor using surface acoustic wave - A yaw rate sensor has two sets of exciting electrodes, perturbative weights and two sets of detecting electrodes on a surface of a piezoelectric substrate. The exciting electrodes excite first surface acoustic waves transmitted through the surface of the substrate in a propagation direction. The weights are oscillated by the waves and excite a second surface acoustic wave, transmitted through the surface of the substrate in a detection direction orthogonal to the propagation direction, in response to a yaw applied to the weights. The detecting electrodes measure an intensity of the second surface acoustic wave to detect the yaw rate. The sets of exciting electrodes are symmetrically placed with respect to a driving axis extending straight along the propagation direction. The group of weights is symmetric with respect to the driving axis. | 05-28-2009 |
20110041604 | Angular rate sensor - An angular rate sensor comprises a piezoelectric film having a first and a second surfaces forming an x-y plane and utilizes a perturbation mass coherently vibrating elastic acoustic waves on which a Coriolis force acts when the angular rate sensor undergoes a rotary motion about an x-direction. A first elastic acoustic wave is excited in the piezoelectric film by a driving transducer and a second elastic acoustic wave generated by the Coriolis force proportional to an angular rate of the rotary motion of the angular rate sensor itself is detected by the detecting transducer. The angular rate sensor further comprises at least a first electrode disposed on the first surface of the piezoelectric film for discharging a surface charge caused due to piezoelectric effect at the lower surface of the film in which the first elastic acoustic wave is excited. | 02-24-2011 |
20110041605 | Angular rate sensor - An angular rate sensor comprises a piezoelectric film having a first and a second surfaces forming an x-y plane and utilizes a perturbation mass coherently vibrating elastic acoustic waves on which a Coriolis force acts when the angular rate sensor undergoes a rotary motion about an x-direction. A first elastic acoustic wave is excited in the piezoelectric film by a driving transducer and a second elastic acoustic wave generated by the Coriolis force proportional to an angular rate of the rotary motion of the angular rate sensor itself is detected by the detecting transducer. The angular rate sensor further comprises at least a first electrode disposed on the first surface of the piezoelectric film for discharging a surface charge caused due to piezoelectric effect at the lower surface of the film in which the first elastic acoustic wave is excited. | 02-24-2011 |
Isao Teshigahara, Mie JP
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20080286186 | Composite oxide catalyst and method of producing the same - A composite oxide catalyst for the oxidation of an olefin containing Mo and Bi as essential components, characterized in that it has a specific surface area of 5 to 25 m | 11-20-2008 |
Isao Teshigahara, Yokkaichi JP
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20090088316 | Method for regenerating catalyst - An object is to efficiently separate catalyst grains from substantially inert grains and, optionally, separate a plurality of catalyst grains from one another, to thereby efficiently perform catalyst regeneration. After taking a catalyst-containing component containing a solid catalyst component deteriorated in a reaction, out of a fixed-bed reactor, the solid catalyst component is regenerated. If a plurality of components having different shapes from one another are contained as the solid catalyst components, after taking-out step, catalyst component separation step for separating such solid catalyst components from one another is performed and, then, the solid catalyst components are regenerated. Further, if an inert component is contained as the catalyst-containing component, after the taking-out step, an inert component separation step for separating the inert component is performed and then the solid catalyst component is regenerated. | 04-02-2009 |
Shigeru Teshigahara, Gifu JP
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20120243261 | LIGHT-SOURCE CIRCUIT UNIT, ILLUMINATION DEVICE, AND DISPLAY DEVICE - There are provided a light-source circuit unit, an illumination device, and a display device which are capable of extracting light emitted from the back surface of a light-emitting element chip to the front surface, suppressing a reduction in reflectance, and reducing cost, with a simple configuration. The light-source circuit unit includes a circuit substrate that has a light-reflective wiring pattern on a surface thereof and includes a chip mounting layer as a part of the wiring pattern, and one or more light-emitting element chips that are directly placed on the chip mounting layer, and are driven by a current flowing through the wiring pattern. | 09-27-2012 |
20130010462 | DISPLAY DEVICE - There is provided a display device including a light-emitting element package, in which a plurality of light-emitting elements emitting light of different colors are arranged vertically and horizontally, is disposed on a base substrate having a plane shape in a vertical direction and an arc shape in a horizontal direction. | 01-10-2013 |
20140104850 | LIGHT SOURCE CIRCUIT UNIT, ILLUMINATOR, AND DISPLAY - Provided are a light source circuit unit that improves light extraction efficiency, as well as an illuminator and a display that include such a light source circuit unit. The light source circuit unit includes: a circuit substrate having a wiring pattern on a surface thereof, the wiring pattern having light reflectivity, a circular pedestal provided on the circuit substrate, a water-repelling region provided at least from a peripheral edge portion of the pedestal to a part of a side face of the pedestal, and one or two or more light-emitting device chips mounted on the pedestal, and driven by a current that flows through the wiring pattern. | 04-17-2014 |
20150249194 | LIGHT SOURCE CIRCUIT UNIT, ILLUMINATOR, AND DISPLAY - Provided are a light source circuit unit that improves light extraction efficiency, as well as an illuminator and a display that include such a light source circuit unit. The light source circuit unit includes: a circuit substrate having a wiring pattern on a surface thereof, the wiring pattern having light reflectivity, a circular pedestal provided on the circuit substrate, a water-repelling region provided at least from a peripheral edge portion of the pedestal to a part of a side face of the pedestal, and one or two or more light-emitting device chips mounted on the pedestal, and driven by a current that flows through the wiring pattern. | 09-03-2015 |
Shun Teshigahara, Hiroshima-City JP
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20150084375 | VEHICLE-BODY FRONT STRUCTURE - A pair of right-and-left extension members which deform and absorb an impact at a vehicle frontal collision, in cooperation with a pair of front side frames, are provided. The extension members are configured to be joined to respective middle portions, in a height direction, of a pair of tower portions of a sub frame at their rear end portions, to project forward, bending outward at a level below the front side frames, and to be comprised of a pair of members having a closed cross section, respectively. The rear end portions of the extension members joined to the tower portions are positioned so that a center line of a longitudinal direction of each of the extension members at the rear end portion is located at an inward position relative to a center line of a standing-vertical direction of each of the tower portions. | 03-26-2015 |
Shun Teshigahara, Hiroshima-Shi JP
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20140183833 | STRUCTURE OF FRONT PORTION OF VEHICLE BODY - Front side frames | 07-03-2014 |