Inventors list

Assignees list

Classification tree browser

Top 100 Inventors

Top 100 Assignees


Hiroki Yoshioka

Hiroki Yoshioka, Kanagawa JP

Patent application numberDescriptionPublished
20090023859POLYOXYALKYLENE DERIVATIVE - A novel polyoxyalkylene derivative represented by the following formula (1), wherein each symbol is as defined in the specification, which has a functional group capable of reacting with various physiologically active substances according to the object is provided.01-22-2009
20100029899MULTIBRANCHED POLYOXYALKYLENE DERIVATIVE - An object of the present invention is to provide a novel multibranched polyoxyalkylene derivative, and an intermediate for the production thereof. Specifically, the object is to provide a multibranched polyoxyalkylene derivative which can keep a high activity of a bio-related substance modified with the multibranched polyoxyalkylene derivative and which can easily produce the modified substance; an intermediate thereof; and a bio-related substance to which the multibranched polyoxyalkylene derivative is bonded.02-04-2010
20100292515Purification method of high-molecular-weight polyethylene glycol compound - An impurity derived from a high-molecular-weight polyethylene glycol compound is removed from a high-molecular-weight polyethylene glycol compound whose total average number of moles of ethylene oxide units added in the molecule is 220 to 4500. In a state where the high-molecular-weight polyethylene glycol compound is dissolved in at least one of water and an organic solvent selected from aromatic hydrocarbon solvents having 8 or less carbon atoms in total and ester compound solvents having 5 or less carbon atoms in total, the water and the organic solvent are mixed. The resulting mixture was separated into an organic layer and an aqueous layer, and the organic layer is separated from the aqueous layer.11-18-2010

Hiroki Yoshioka, Kakogawa-Shi JP

Patent application numberDescriptionPublished
20100270891SEALING MEMBER OF PIEZOELECTRIC RESONATOR DEVICE AND MANUFACTURING METHOD THEREFOR - A sealing member of a piezoelectric resonator device is configured to hermetically seal a driving electrode formed on a piezoelectric resonator plate. In the sealing member, a through hole is formed so that an electrode pattern formed on both major surfaces of the substrate is brought into conduction; and a conductive member fills in the through hole. The through hole has a smaller diameter at a portion thereof inside the substrate than at both end portions thereof at the major surfaces of the sealing member. Both end faces of the conductive member have a concave shape with respect to the major surfaces of the substrate of the sealing member.10-28-2010

Hiroki Yoshioka, Matsumoto-Shi JP

Patent application numberDescriptionPublished
20100265134POSITION CALCULATING METHOD AND POSITION CALCULATING DEVICE - A position calculating method includes: estimating a reception frequency and a code phase related to reception of a positioning signal from a positioning satellite as an estimated measurement; acquiring a reception frequency and a code phase on the basis of the positioning signal received from the positioning satellite; setting a value of an error parameter as an observed measurement, which is used in position calculation using a Kalman filter, on the basis of a difference between the observed measurement and the estimated measurement; and calculating a position by performing the position calculation using the error parameter value.10-21-2010

Patent applications by Hiroki Yoshioka, Matsumoto-Shi JP

Hiroki Yoshioka, Tochigi JP

Patent application numberDescriptionPublished
20100218550ACCUMULATOR - In an accumulator for use in a refrigerating cycle of a vehicle air conditioner or the like, to prevent a refrigerant liquid sucked inside returning to a compressor.09-02-2010

Hiroki Yoshioka, Matsumoto JP

Patent application numberDescriptionPublished
20090073038POSITIONING DEVICE, POSITIONING CONTROL METHOD, AND RECORDING MEDIUM - A positioning device includes a phase calculation section which performs a correlation process of a specific positioning base code replica and a positioning base code from a specific transmission source to calculate a present phase of the positioning base code, an estimated phase calculation section which calculates an estimated phase when estimating the present phase based on the phase used for preceding positioning, a Doppler shift of a frequency of a radio wave carrying the positioning base code, and an elapsed time from the preceding positioning, a phase difference evaluation section which determines whether or not a phase difference between the calculated present phase and the estimated phase is within a phase difference allowable range specified in advance, and a positioning section which locates a present position using the phase within the phase difference allowable range.03-19-2009
20100194637POSITIONING DEVICE, METHOD OF CONTROLLING POSITIONING DEVICE, AND RECORDING MEDIUM HAVING PROGRAM FOR CONTROLLING POSITIONING DEVICE RECORDED THEREON - A positioning device 20 receives a satellite signal from a satellite positioning system (SPS) satellite and locates a present position, the positioning device 20 including an azimuth calculation section which calculates an azimuth of the SPS satellite corresponding to the received satellite signal, and a reception environment determination section which determines a reception environment including a multipath environment based on the azimuths of the SPS satellites calculated by the azimuth calculation section.08-05-2010

Hiroki Yoshioka, Saitama JP

Patent application numberDescriptionPublished
20100000713VEHICLE AIR CONDITIONING SYSTEM - Provided are a heat-pump cooler (A) having a first circulation channel (01-07-2010
20110143642VENTILATION LOAD-REDUCING APPARATUS AND VEHICLE AIR CONDITIONER USING THE SAME - A ventilation load-reducing apparatus, which has a simple structure and is capable of further improving the efficiency of the heat recovery, and a vehicle air conditioner using the same are proposed. The ventilation load-reducing apparatus includes an inside air lead-out path 06-16-2011

Hiroki Yoshioka, Tokyo JP

Patent application numberDescriptionPublished
20080198075Broadband antenna unit comprising a folded plate-shaped monopole antenna portion and an extending portion - In a broadband antenna unit including a ground plate, an antenna element disposed in the vicinity of an end of the ground plate, and a dielectric substrate for mounting the antenna element therein, the antenna element includes a folded plate-shaped monopole antenna portion having a U-shape in cross section and an extending portion extending from the folded plate-shaped monopole antenna portion. The antenna element is disposed on the side of one side edge of the ground plate. The broadband antenna unit has a feeding point between the ground plate and the antenna element that is disposed at a feeding position apart from the one side by a predetermined distance. A ratio between a width of the ground plate and the predetermined distance is substantially 5:2 when a ratio between the width of the ground plate and a width of the folded plate-shaped monopole antenna portion is 2:1.08-21-2008
20090079638BROADBAND ANTENNA UNIT COMPRISING A FOLDED PLATE-SHAPED MONOPOLE ANTENNA PORTION AND TWO CONDUCTIVE ELEMENTS - In a broadband antenna unit including a ground plate, an antenna element disposed in the vicinity of an end of the ground plate, and a dielectric substrate for mounting the antenna element therein, the antenna element includes a folded plate-shaped monopole antenna portion having a U-shape in cross section, a first conductive element extending from a first location of the folded plate-shaped monopole antenna portion, and a second conductive element extending from a second location of the folded plate-shaped monopole antenna portion. The antenna element is disposed on the side of one side edge of the ground plate. The broadband antenna unit has a feeding point between the ground plate and the antenna element that is disposed at a feeding position apart from the one side by a predetermined distance.03-26-2009
20090207089ANTENNA ELEMENT - An antenna element is disclosed. A conductive plate is adapted to be electrically connected to an electric ground, and has a first edge. A second edge opposes the first edge and is formed with a first slit elongated in a first direction. A third edge intersects the first edge. A recessed part intersects the first edge and the third edge. A conductive member elongates from the second edge in the first direction.08-20-2009

Hiroki Yoshioka, Sano-Shi JP

Patent application numberDescriptionPublished
20090193830AIR CONDITIONING SYSTEM FOR VEHICLE - An air conditioning system includes an air-cooling unit and an air-heating unit. On a first path in the cooling-unit, provided are a compressor for first refrigerant, a condenser for the first refrigerant, front and rear expansion units for the first refrigerant, and an front and rear evaporators to cool air. On a second path in the air-heating unit, provided are a pump for second refrigerant, and front and rear heater cores for the second refrigerant. The condenser is located also on the second path to achieve heat-exchanging between the first refrigerant and the second refrigerant. During air-heating, air heated by the front and rear heater cores is supplied to a vehicle compartment as conditioned air. During air-cooling, air cooled by the front and rear evaporator is supplied to the vehicle compartment as conditioned air.08-06-2009

Hiroki Yoshioka, Kawasaki-Shi JP

Patent application numberDescriptionPublished
20110148728CHIP ANTENNA - Disclosed is a chip antenna comprising: a base portion including a dielectric, a magnetic substance or a magnetic dielectric; a spiral antenna electrode which is opposed to a ground portion and which is provided inside the base portion; and a power feeding connecting terminal to feed power to the antenna electrode, wherein a first side portion including an outermost peripheral end of the antenna electrode, or a second side portion connected to the first side portion including the outermost peripheral end, is disposed at a position closest to the ground portion at a predetermined distance away from the ground portion, and the power feeding connecting terminal is connected to a side portion extending in a direction substantially perpendicular to the ground portion.06-23-2011

Hiroki Yoshioka, Hyogo JP

Patent application numberDescriptionPublished
20110215678PIEZOELECTRIC RESONATOR DEVICE, MANUFACTURING METHOD FOR PIEZOELECTRIC... - A piezoelectric vibration device includes a piezoelectric vibration plate where an excitation electrode is formed, and an upper lid member and a lower lid member that hermetically seal the excitation electrode, the piezoelectric vibration plate having a region where the upper lid member is joined and a region where the lower lid member is joined, on front and back main surfaces, the upper lid member having a region on one main surface where the piezoelectric vibration plate is joined, and the lower lid member having a region on one main surface where the piezoelectric vibration plate is joined. At least one of a substrate of the joining region of the piezoelectric vibration plate, a substrate of the joining region of the upper lid member, and a substrate of the joining region of the lower lid member has a roughened surface.09-08-2011