Patent application number | Description | Published |
20090177436 | Position Detecting Device and Position Detecting Method - The present invention relates to a position detecting device capable of canceling an error due to looseness in a vertical direction and of eliminating variation in temperature characteristics by calculating a ratio between output voltages of a plurality of Hall elements. Assuming that the Hall voltage Vhe1 of a Hall element becomes A·K·Bhe1 (A is the amplification factor of a preamplifier, K is a constant, and Bhe1 is the magnetic flux density the Hall element receives), then a PI regulator automatically adjusts the bias point of the PI output by feedback control in such a manner that A·K·Bhe1+Vref=AGND (=0) holds. The Hall voltage Vhe2 of the Hall element after amplification becomes A·K·Bhe2. Since K=−Vref/A·Bhe1, the Hall voltage Vhe2 of the Hall element is given by −Vref·Bhe2/Bhe1. | 07-09-2009 |
20120060607 | VIBRATION TRANSDUCER AND ITS MANUFACTURING METHOD - A vibration transducer includes a silicon single crystal vibration beam provided over a silicon single crystal substrate, the vibration beam having a sectional shape that is longer in a direction perpendicular to a surface of the silicon single crystal substrate than in a direction parallel with it, a shell made of silicon, surrounding the vibration beam with a gap, and forming a vacuum room together with the silicon single crystal substrate, a plate-like first electrode plate disposed parallel with the surface of the silicon single crystal substrate, the first electrode plate having one end connected to the vibration beam, plate-like second and third electrode plates disposed parallel with the surface of the silicon single crystal substrate so as to be opposed to each other with the vibration beam interposed in between, and asperities formed on confronting side surfaces of the vibration beam and the second and third electrode plates. | 03-15-2012 |
20120235257 | VIBRATION TRANSDUCER - Vibration beams are provided on a substrate in parallel with the substrate and in parallel with each other, and provided in vacuum chambers formed by a shell and the substrate. Each of vibration beams has a sectional shape with a longer sectional thickness in a direction perpendicular to a surface of the substrate than a sectional thickness in a direction parallel to the surface of the substrate. A first electrode plate is provided in parallel with the surface of the substrate and connected to one end of each of the vibration beams. A second electrode plate is provided in parallel with the surface of the substrate and between the vibration beams. Third and fourth electrode plates are provided on opposite sides of the vibration beams. Asperities are provided in opposed side wall portion surfaces of the vibration beams and the second, third and fourth electrode plates. | 09-20-2012 |
20130139377 | METHOD OF MANUFACTURING RESONANT TRANSDUCER - A method of manufacturing a resonant transducer having a vibration beam includes: (a) providing an SOI substrate including: a first silicon layer; a silicon oxide layer on the first silicon layer; and a second silicon layer on the silicon oxide layer; (b) forming a first gap and second gap through the second silicon layer by etching the second silicon layer using the silicon oxide layer as an etching stop layer; (c) forming an impurity diffusion source layer on the second silicon layer; (d) forming an impurity diffused layer in a surface portion of the second silicon layer; (e) removing the impurity diffusion source layer through etching; and (f) removing at least a portion of the silicon oxide layer through etching such that an air gap is formed between the first silicon layer and a region of the second silicon layer surrounded by the first and second gaps. | 06-06-2013 |
20130285811 | ELECTRONIC DEVICE - Provided is an electronic device having a high anti-theft effect with a simple structure. The electronic device includes; a fixed panel; a detachable panel which is attached to or detached from the fixed panel; a first sensor which detects detaching of the detachable panel from the fixed panel; and a second sensor which detects detaching of the detachable panel from the fixed panel. A controller (CPU) restricts some of the plurality of functions when at least one of the first sensor and the second sensor detects that the detachable panel is detached from the fixed panel. | 10-31-2013 |
20140142717 | POROUS COMPOSITE WITH GRADED BIOABSORBABILITY, ARTIFICIAL BONE USING THE SAME, AND MANUFACTURING METHOD THEREOF - The object of the present invention is to provide a calcium phosphate-collagen fiber composite which has an excellent mechanical property, can induce bone replacement by rapid bone remodeling, and can be used in a high-load region. The object can be solved by a porous composite comprising a calcium phosphate crystal and a collagen fiber at a weight ratio of 80:20 to 20:80, wherein (1) a bioabsorbability of the porous composite is graded, and (2) the density of the porous composite determined by gravimetric method is 300 to 1500 mg/cm | 05-22-2014 |
20140197712 | RESONANT TRANSDUCER AND MANUFACTURING METHOD OF RESONANT TRANSDUCER - A resonant transducer includes a resonator, a resonator electrodes connected to an end part of the resonator, at least one fixed electrode arranged in the vicinity of the resonator, and a buried part formed between the fixed electrode and the resonator electrode. The resonator, the resonator electrodes and the fixed electrode are formed by the same active layer on a substrate. | 07-17-2014 |
20140245048 | LSI AND INFORMATION PROCESSING SYSTEM - The controller LSI is connected to an SPI flash memory having a deep power down mode (DPM), and brings the SPI flash memory to the DPM and then brings itself to low power consumption mode (LPM) that volatilizes data in a RAM. This invention solves the problem that the controller LSI cannot release the peripheral device from the DPM upon returning from the LPM due to the volatilization of the data. The controller LSI includes a CPU, the RAM, and an SPI control unit transmitting an SPI command to the flash memory. The SPI command includes a power down command to bring the flash memory into DPM and a release command to release it from the DPM. Upon returning from the LPM, the controller LSI causes the control unit to transmit a release command to the flash memory irrespective of whether it is in DPM or normal mode. | 08-28-2014 |
20150042208 | RESONANT TRANSDUCER, MANUFACTURING METHOD THEREFOR, AND MULTI-LAYER STRUCTURE FOR RESONANT TRANSDUCER - A resonant transducer includes a silicon single crystal substrate, a silicon single crystal resonator disposed over the silicon single crystal substrate, a shell made of silicon, surrounding the resonator with a gap, and forming a chamber together with the silicon single crystal substrate, an exciting module configured to excite the resonator, a vibration detecting module configured to detect vibration of the resonator, a first layer disposed over the chamber, the first layer having a through-hole over the resonator, a second layer disposed over the first layer, the second layer covering a gap being positioned above the through-hole and being communicated with the through-hole, and a third layer covering the first layer and the second layer, and the third layer sealing the gap. | 02-12-2015 |