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Hiroyuki Hasegawa

Hiroyuki Hasegawa, Himeji-Shi JP

Patent application numberDescriptionPublished
20110048582Ti-Based Brazing Filler Metal and Method for Producing the Same - A Ti-based brazing filler material comprising in mixture a Zr-containing alloy powder comprising 30 to 90% by mass of one or two of Cu and Ni, the balance being Zr and unavoidable impurities and a Ti-based powder comprising 0 to 50% by mass of one or two of Cu and Ni, the balance being Ti and unavoidable impurities, wherein the weight ratio of the Zr-containing alloy powder to the Ti-based powder is 8:2 to 4:6. This Ti-based brazing filler material can achieve good brazing and can exhibit excellent effects in the production of aerospace instruments, medical instruments, frames of glasses, heat-exchangers made from titanium.03-03-2011

Hiroyuki Hasegawa, Hitachi JP

Patent application numberDescriptionPublished
20080203962APPARATUS AND METHOD FOR DRIVING SYNCHRONOUS MOTOR - The synchronous motor driving apparatus including position sensors provided in the synchronous motor, a current polarity detection circuit for detecting the polarities of the currents in the respective phase windings of the synchronous motor, an inverter driving the synchronous motor, a motor speed calculation unit calculating the rotational speed of the synchronous motor depending on the output signals from the position sensors, a speed control unit outputting a first voltage adjusting component (q-axis current command value Iq*) to cause the rotational speed of the synchronous motor to approach a speed command value and a phase control unit outputting a second voltage adjusting component (d-axis current command value Id*) to cause the phase differences between the phases of the position sensor signals and of the currents in the respective phase windings of the synchronous motor to become a predetermined value.08-28-2008
20080224643SEMICONDUCTOR DEVICE FOR DRIVING MOTOR, THREE-PHASE MOTOR AND MOTOR DRIVING APPARATUS WITH THE SEMICONDUCTOR DEVICE AND FAN MOTOR - In order to prevent a short circuit of top and bottom arms of a motor driving IC when noise is added to six control signals for controlling six switching elements, there is provided a semiconductor device for driving a motor, being sealed with resin as one package and comprising: six switching elements for driving a three-phase motor; three output terminals for outputting voltages to the three-phase motor; at least one driving circuit for driving the six switching elements; three control signal input terminals; and a function) of generating six control signals for control of the six switching elements based on three control signals inputted through the three control signal input terminals.09-18-2008
20090256505SYNCHRONOUS MOTOR AND CONTROL METHOD OF SYNCHRONOUS MOTOR - A synchronous motor including therein a three-phase inverter and position sensors, having a unit for calculating a digital input current value from the analog output of an input current detection circuit that detects the input current flowing into the DC input terminal of the three-phase inverter, and a digital feedback speed control unit for adjusting the amplitudes and frequency of the AC voltages outputted from the three-phase inverter in such a manner that the motor speed calculated by a motor speed calculation unit 10-15-2009
20110018485APPARATUS AND METHOD FOR DRIVING SYNCHRONOUS MOTOR - The synchronous motor driving apparatus including position sensors provided in the synchronous motor, a current polarity detection circuit for detecting the polarities of the currents in the respective phase windings of the synchronous motor, an inverter driving the synchronous motor, a motor speed calculation unit calculating the rotational speed of the synchronous motor depending on the output signals from the position sensors, a speed control unit outputting a first voltage adjusting component (q-axis current command value Iq*) to cause the rotational speed of the synchronous motor to approach a speed command value and a phase control unit outputting a second voltage adjusting component (d-axis current command value Id*) to cause the phase differences between the phases of the position sensor signals and of the currents in the respective phase windings of the synchronous motor to become a predetermined value.01-27-2011

Patent applications by Hiroyuki Hasegawa, Hitachi JP

Hiroyuki Hasegawa, Saitama JP

Patent application numberDescriptionPublished
20100069713ELECTRONIC ENDOSCOPE SYSTEM - An electronic endoscope system includes an electronic endoscope having a CMOS image sensor on the tip of an insertion section, a light source device for illuminating the interior of a patient's body, and a processing device for reading out image signals from the CMOS image sensor. The electronic endoscope system can operate with a standard imaging mode and a special imaging mode. When the time taken to read out the image signals from all the pixels in the standard mode is defined as T, the light source device in the special imaging mode emits illumination light in every first half period T/2 while switching a wavelength of the illumination light between two different wavebands. In every second half period T/2, the processing device reads out the image signals from the half of the pixels.03-18-2010
20110009698ENDOSCOPE APPARATUS, ENDOSCOPE SYSTEM AND METHOD FOR CONTROLLING ENDOSCOPE APPARATUS - An endoscope apparatus includes an endoscope main body and an assisting drive unit. The endoscope main body includes an endoscope insertion portion having a curving portion on the leading end side thereof, a curving operation portion operating or curving the curving portion, and a curving drive portion driving or curving the curving portion according to an operation force applied to the curving operation portion. The assisting drive unit generates a drive force assisting a curving drive operation to be carried out by the curving drive portion. Curving information regulated at each curving angle corresponding to curving amount of the curving portion is stored previously. The curving amount θa of the curving portion is detected. The drive force is generated from the assisting drive unit using the curving information corresponding to the detected curving amount θa.01-13-2011

Hiroyuki Hasegawa, Uenohara-Shi JP

Patent application numberDescriptionPublished
20100234385Compsition Containing Biopterin and Method for Using The Same - It is thought that applications and use of tetrahydrobiopterin (BH4), which is used as a pharmaceutical, will expand due to its superior efficacy. However, in addition to BH4 being extremely expensive, since it is unstable with respect to oxidation, applications other than pharmaceuticals are considered to be difficult. Further, it is difficult for BH4 to permeate through a blood-brain barrier, so that BH4 concentrations in the brain tend not to increase under the present conditions. Biopterins are oxidized form of BH4, stable to oxidation, easy to handle, and can be produced inexpensively. The inventors found that administration of biopterin can be expected to demonstrate effects equal to or greater than those of administration of BH4. On the basis of the result, it was first clarified that administration of a composition containing biopterin causes increase in BH4 concentration in the body (especially BH4 concentration in the brain, which is difficult to be increased by BH4 administration) to demonstrate sufficient actions.09-16-2010

Hiroyuki Hasegawa, Tokyo JP

Patent application numberDescriptionPublished
20080277585MONITORING APPARATUS - An imaging apparatus includes a camera unit, a panorama-image generating section generating a panorama image of the entire area by combining a plurality of unit images obtained by the camera unit, a panorama-image storage/management section storing and managing the panorama image generated by the panorama-image generating section, an infrared camera photographing an object that has a temperature falling within a preset temperature range as an infrared image, a direction controller sequentially shifting the photographing direction of the infrared camera within the area being photographed, an infrared-image generating section combining a plurality of infrared images provided by the infrared camera, an image-synthesizing section synthesizing the panorama image generated by the panorama-image generating section, with the panorama infrared image generated by the infrared-image generating section, and a display displaying the synthesized image generated by the image-synthesizing section.11-13-2008
20090237743INFORMATION PROCESSING APPARATUS, INFORMATION PROCESSING METHOD, AND COMPUTER-READABLE STORAGE MEDIUM - When data of large capacity compared with the capacity of a recording medium used for storing a backup is divided into sections of data and backed up on recording media, a unit configured to divide data and generate sections of the data in order to record the data on recording media, the sections having an order, and a unit configured to generate representative images for each of the recording media, on which the sections of the data are recorded, are provided. Representative images assigned to a certain recording medium include a representative image generated using one of the sections of the data to be recorded on the certain recording medium and a representative image generated using at least one of a previous section and a next section of the data regarding the section of the data, whereby the relationship between the recording media can be easily recognized.09-24-2009
20100129049EDITING APPARATUS, CONTROL METHOD OF THE EDITING APPARATUS, AND IMAGE PICKUP APPARATUS - When an external device approaches a communication unit while image data to be edited is edited, the communication unit establishes a connection with the external device by close proximity wireless communication. In response to the establishment of the connection by the close proximity wireless communication, image data is received from another device, and the received image data is incorporated into the image data being edited.05-27-2010
20110162968PRODUCTION DEVICE AND PRODUCTION METHOD FOR CONDUCTIVE NANO-WIRE - The object of the disclosure is to provide a nano-scale molecular assembly such as a conductive nano-wire. Specifically, there is provided an electrochemical apparatus for forming a molecular assembly, including two electrodes and an electrochemical cell holding an electrolytic solution and the two electrodes, wherein the gap between the two electrodes is from 1 nm to 100 μm, by allowing the electrochemical cell to hold an electrolytic solution containing molecules that is to constitute the molecular assembly, and applying a voltage across the two electrodes in the state wherein the electrolyte and the two electrodes are in contact.07-07-2011

Patent applications by Hiroyuki Hasegawa, Tokyo JP

Hiroyuki Hasegawa, Shizuoka JP

Patent application numberDescriptionPublished
20090258551OUTBOARD MOTOR AND HOOK ASSEMBLY USED FOR OUTBOARD MOTOR - A hook assembly is arranged to engage with an engaged member to fix a first housing to a second housing of an outboard motor. The hook assembly includes a rotation shaft, a hook member, a lever, and a weight. The rotation shaft is rotatably mounted on the first housing. A recessed portion is provided in the hook member. The recessed portion is arranged to open in first rotation direction. The recessed portion engages with the engaged member. The lever extends from the rotation shaft in a second rotation direction opposite to the first rotation direction of the recessed portion. The weight regulates the rotation of the hook member in the second rotation direction when the hook member and the engaged member are engaged together. The arrangement provides a highly-operable hook assembly for the outboard motor that prevents disengagement even when an obstacle collides with the outboard motor during traveling of a boat.10-15-2009
20090314518CABLE INSERTION STRUCTURE FOR OUTBOARD MOTOR - In a cable insertion structure for an outboard motor, a pawl section and a supporting section of a resinous cap are inserted from the inside of a cowling into a communicating hole of a rubber grommet, and the pawl section is fitted into a recess. Then, the communicating section of the rubber grommet is sandwiched between the pawl section and the pressing section, and thus the resinous cap is fixed to the rubber grommet. In the above-described state, a cable is inserted from an insertion hole of the resinous cap into a cable housing section of the rubber grommet. A clip band is fastened to a groove of the cable housing section to fix the cable housing section to the cable. The cable insertion structure for an outboard motor prevents a rubber grommet from coming off even when an external force that pulls the cable is applied.12-24-2009
20090318038COWLING STRUCTURE FOR OUTBOARD MOTOR - In cowling structure for an outboard motor, a through hole is formed below an upper-cowling joining surface of a lower cowling; control cables are supported with a cable supporting groove of a back side plate, and the back side plate is fixed to the through hole; a sealing member that is covered on the outside of the control cables, is fitted into the through hole; a groove of a front side plate is placed around the control cables, and the front side plate is set onto the sealing member; and the sealing member is fixed to the lower cowling by a bolt together with the front side plate. The cowling structure for an outboard motor can prevent water intrusion by removing a notch on an upper-cowling joining surface of a lower cowling.12-24-2009

Hiroyuki Hasegawa, Kanagawa JP

Patent application numberDescriptionPublished
20090213209MONITORING SYSTEM FOR A PHOTOGRAPHY UNIT, MONITORING METHOD, COMPUTER PROGRAM, AND STORAGE MEDIUM - A coverage area picture imaging a maximum area is displayed on a coverage area picture display. A camera is moved within a predetermined range and a plurality of frames obtained as a result form a picture. The pixels of the picture is decimated in vertical and horizontal directions and form a thumbnail as the coverage area picture. The coverage area picture display presents a display indicating a direction in which the camera is currently directed for picture photographing. In accordance with the display, a photographing direction is controlled. A plurality of frames are photographed with respect to a designated position, then stored, and displayed. A whole picture display presents a whole panorama picture. A selective picture display presents a frame at the position designated within the whole panorama picture as a selected picture.08-27-2009

Hiroyuki Hasegawa, Osaka JP

Patent application numberDescriptionPublished
20080284721Liquid crystal display apparatus and liquid crystal television - The present invention discloses a liquid crystal display apparatus and a liquid crystal television which are provided with a backlight to be lighted up by a separately-excited inverter circuit and realize improvement of contrast in low brightness. A microcomputer 11-20-2008

Hiroyuki Hasegawa, Okayama-Ken JP

Patent application numberDescriptionPublished
20110129624NOVEL AZOMETHINE COMPOUND AND THERMAL TRANSFER SHEET USING COLORING MATTER OF THE AZOMETHINE COMPOUND - This invention provides an azomethine compound that can realize a good coupling reaction and, at the same time, can significantly reduce the production cost of the azomethine compound, the azomethine compound comprising a pyridine ring bonded through a nitrogen atom to a 1H-pyrazolo[1,5-b][1,2,4]triazole ring. The azomethine compound is represented by formula (M-I):06-02-2011