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Hiroyuki Yamada

Hiroyuki Yamada, Fukushima JP

Patent application numberDescriptionPublished
20080213659LEAD SEALANT FILM AND NON-AQUEOUS ELECTROLYTE BATTERY - A lead sealant film and a non-aqueous electrolyte battery are provided. The lead sealant film includes a laminated structure composed of an inner layer, an intermediate layer, and an outer layer. The intermediate layer includes a first acid-modified polypropylene having a high melting-point, and each of the inner layer and the outer layer includes a second acid-modified polypropylene having a low melting-point. A difference between the melting point of the first acid-modified polypropylene and the melting point of the second acid-modified polypropylene is from 20° C. to 25° C.09-04-2008
20080254348BATTERY PACK - A battery pack includes a non-aqueous electrolyte secondary battery, a rigid covering member, and a protection circuit board. The secondary battery includes a battery element and a flexible covering member formed of a first laminated film composed of a first heat-bonding layer, a first metal layer, and a first outer covering layer laminated successively. The flexible covering member is sealed along around the battery element while leaving electrode terminals of the positive and negative electrodes extended outside the battery element. The rigid covering member is formed of a second laminated film composed of a second heat-bonding layer, a second metal layer, and a second outer covering layer laminated successively. The flexible covering member and the rigid covering member are bonded with an adhesive strength equal to or higher than atmospheric pressure and with a peel strength equal to or lower than a breaking strength of the flexible covering member.10-16-2008
20080286635LAMINATED PACKAGING MATERIAL, AND BATTERY USING THE MATERIAL - A laminated packaging material and a battery using the material are disclosed. The material includes an inner layer composed of a resin film, a first adhesive layer, a metal layer, a second adhesive layer, and an outer layer composed of a resin film. At least one of the first adhesive layer or the second adhesive layer is composed of an adhesive composition, as an essential component, selected from the group consisting of a resin having an active hydrogen group in a side chain, polyfunctional isocyanates, and a polyfunctional amine compound.11-20-2008
20090098416BATTERY PACK - A battery pack includes a non-aqueous electrolyte secondary battery, a rigid covering member, and a protection circuit board. The secondary battery includes a battery element and a flexible covering member formed of a first laminated film composed of a first heat-bonding layer, a first metal layer, and a first outer covering layer which are laminated successively. The flexible covering material is sealed along around the battery element while leaving electrode terminals of the positive and negative electrodes extended outside the battery element. The rigid covering member covers the non-aqueous electrolyte secondary battery together with the flexible covering member, and is formed of a second laminated film composed of a second heat-bonding layer, a second metal layer, and a second outer covering layer which are laminated successively. The flexible covering member and the rigid covering member are bonded by melting the second heat-bonding layer without melting the first outer covering layer.04-16-2009
20090098417BATTERY PACK AND METHOD OF MANUFACTURING THE SAME - A battery pack including a battery cell, a circuit board electrically connected to the battery cell, a first cover, and a second cover. The battery cell includes a battery element, a rectangular first packaging component, a recess, and a rectangular second packaging component. The battery element is housed in the recess, the first packaging component and the second packaging component are stacked so that the second packaging component covers the opening of the recess, the periphery of the opening is sealed, both ends of the second packaging component are abutted at the outer bottom surface of the recess of the first packaging component, and the first outer resin layer and the second inner resin layer are bonded by heat seal adhesive layer.04-16-2009
20100040942LAMINATE PACKING MATERIAL FOR BATTERY AND LAMINATE BATTERY - In a laminated external packaging material for a battery according to the present invention, a metallic foil 02-18-2010
20110104546NONAQUEOUS ELECTROLYTE BATTERY - A nonaqueous electrolyte battery is provided which includes a battery element, and a package member for packaging the battery element, and in the nonaqueous electrolyte battery, the package member includes a layer which contains a blackbody material capable of using blackbody radiation and which has an emissivity of 0.6 or more.05-05-2011

Patent applications by Hiroyuki Yamada, Fukushima JP

Hiroyuki Yamada, Hyogo JP

Patent application numberDescriptionPublished
20110052448SPECIFIC COMPONENT MEASURING METHOD BY SPECTRAL MEASUREMENT - The present invention discloses a method for measuring an amount of an objective component to be measured in a sample, which comprises; preventing an electric charge in an atmosphere in a photometry chamber from transferring to the surface of a solution which generates light due to an energy variation of a substance induced by the objective component in the sample, measuring value of the light, and determining an amount of the objective component in the sample on the basis of the measured value thus obtained, and an instrument used for the method.03-03-2011

Hiroyuki Yamada, Hitachinaka-Shi JP

Patent application numberDescriptionPublished
20110029179Motor Control Device and Motor System Equipped with Motor Control Device - A motor control device includes: an electric circuit that supplies power, which is supplied from a power source and controlled by the electric circuit, to a motor; and a control circuit that generates a command signal to be used to control operation of the electric circuit, wherein: the control circuit generates the command signal so as to intermittently turn off power supply to the motor while the motor is being driven with power supplied to the motor and controls operation of the electric circuit based upon the command signal thus generated.02-03-2011

Hiroyuki Yamada, Osaka JP

Patent application numberDescriptionPublished
20090009976MEMORY CARD - Memory card includes a circuit board, a component mounted on a main face of the circuit board, casing covering at least the main face of the circuit board and the component, and bittering agent retained in a roughened area provided on casing or an exposed part of the circuit board.01-08-2009
20090115592DISPLAY SYSTEM, DISPLAY DEVICE, DISPLAY PROGRAM, DISPLAY METHOD, AND COMPUTER-READABLE STORAGE MEMORY CONTAINING THE DISPLAY PROGRAM - A display system includes a display device mounted on a vehicle, and a controller arranged to control the display of a plurality of pieces of information regarding the vehicle as an image in the display device. If a display fault occurs in a portion of the display device, the controller performs control to display the information displayed in the display fault area having had the display fault, in a normal display area performing a normal display.05-07-2009
20100084762MEMORY CARD - Memory card (04-08-2010
20100157550MEMORY CARD AND MEMORY CARD MANUFACTURING METHOD - A memory card includes a first circuit board, a first semiconductor chip mounted to a top face of the first circuit board with a part of its under face confronting the first circuit board, a second circuit board of which a top face is bonded to a under face of the first circuit board, a second semiconductor chip mounted to the top face of the second circuit board with at least a part of the second semiconductor chip confronting a part of another part other than the part of the under face of the first semiconductor chip, and a cover disposed over the top face of the second circuit board for covering the first semiconductor chip, the first circuit board and the second semiconductor chip.06-24-2010
20100165587MEMORY CARD AND METHOD FOR MANUFACTURING THE SAME - A memory card includes a circuit board, semiconductor chips mounted on different areas on the circuit board, a semiconductor chip with a semiconductor electrode on its top face and being fixed such that at least a part of its bottom face faces at least a part of a top face of the semiconductor chip, a wire for connecting the semiconductor electrode and a board electrode on the circuit board to achieve a mounting state of the semiconductor chip, and a cover for covering a circuit formation area from an upper side of the circuit board. The circuit formation area includes three semiconductor chips and the wire. At least a part of each of three semiconductor chips, at least a part of the circuit board, and the wire are covered with secondary sealing resin and primary sealing resin.07-01-2010
20100193927MEMORY CARD AND METHOD FOR MANUFACTURING MEMORY CARD - A memory card includes a circuit board, a first semiconductor chip mounted on the circuit board with a bump sandwiched between the first semiconductor chip and the circuit board, a second semiconductor chip mounted on the circuit board with a bump sandwiched between the second semiconductor chip and the circuit board with a clearance not greater than 1 mm between the first semiconductor chip and the second semiconductor chip, a first sealing resin layer surrounding the bump and existing between the first semiconductor chip and the circuit board, and a second sealing resin layer surrounding the bump and existing between the second semiconductor chip and the circuit board, and a cover covering the first semiconductor chip, the second semiconductor chip on a principal face of the circuit board.08-05-2010

Patent applications by Hiroyuki Yamada, Osaka JP

Hiroyuki Yamada, Hitachinaka JP

Patent application numberDescriptionPublished
20080302333Electromagnetic Drive Mechanism and a High-Pressure Fuel Supply Pump - The objective of the present invention is to dampen operating sounds of an electromagnetic drive mechanism used for a variable displacement to reduce an individual difference depending on apparatus due to the control mechanism in a high-pressure fuel supply pump change over time or installation tolerance.12-11-2008
20090093942Control device of high-pressure fuel pump of internal combustion engine - A control device of a high-pressure fuel pump of an internal combustion engine capable of improving stability in controlling the drive of the high-pressure fuel pump by limiting the end timing of a drive signal of the high-pressure fuel pump and driving an actuator in a control effective range of the high-pressure fuel pump. The control device of the high-pressure fuel pump of the internal combustion engine has a fuel injection valve provided on a cylinder and the high-pressure fuel pump for pumping fuel to the fuel injection valve, wherein the high-pressure fuel pump comprises a pressure chamber, a plunger for pressurizing the fuel in the pressure chamber, a fuel valve provided in the pressure chamber, and the actuator for operating the fuel valve. The control device has means for calculating the drive signal of the actuator so as to realize the variable discharge of the high-pressure fuel pump. The means for calculating the drive signal has means for limiting the end timing of the drive signal of the actuator to a predetermined phase and/or means for limiting the output timing of the drive signal of the actuator to be within a predetermined phase range.04-09-2009
20090120412Plunger Type High-Pressure Fuel Pump - A plunger type high-pressure fuel pump includes a plunger reciprocated in a cylinder. A fluid pressurizing chamber of the pump has a chamber with a capacity that changes with reciprocation of the plunger. An electromagnetic valve is provided between the pressurizing chamber and a fluid suction passage; as well as a discharge valve. The electromagnetic valve includes a valve member including a suction valve; a solenoid coil adapted to displace the valve member; an anchor made of a magnetic material provided integrally with the valve member; and a core forming a magnetic circuit to attract the anchor by the electromagnetic force and dividing the inside of the electromagnetic valve into a hermetically closed space and an external space communicating with the fluid suction passage. The anchor or the core is provided with a fluid passage through which fluid can flow between the hermetically closed space and the external space formed by the anchor and the core, respectively when the suction valve is in an opened state.05-14-2009
20090235900CONTROL DEVICE OF HIGH-PRESSURE FUEL PUMP OF INTERNAL COMBUSTION ENGINE - A control device of a high-pressure fuel pump of an internal combustion engine capable of improving stability in controlling the drive of the high-pressure fuel pump by limiting the end timing of a drive signal of the high-pressure fuel pump and driving an actuator in a control effective range of the high-pressure fuel pump. The control device of the high-pressure fuel pump of the internal combustion engine has a fuel injection valve provided on a cylinder and the high-pressure fuel pump for pumping fuel to the fuel injection valve, wherein the high-pressure fuel pump comprises a pressure chamber, a plunger for pressurizing the fuel in the pressure chamber, a fuel valve provided in the pressure chamber, and the actuator for operating the fuel valve. The control device has means for calculating the drive signal of the actuator so as to realize the variable discharge of the high-pressure fuel pump. The means for calculating the drive signal has means for limiting the end timing of the drive signal of the actuator to a predetermined phase and/or means for limiting the output timing of the drive signal of the actuator to be within a predetermined phase range.09-24-2009
20090241908Controlling Apparatus of Variable Capacity Type Fuel Pump and Fuel Supply System - A controlling apparatus of a variable capacity type fuel pump, for avoiding noises caused due to drive of the fuel pump and noises caused due to drive of injectors from overlapping or duplicating with each other in the timing thereof, wherein signals for driving the pump reduced, or the timing thereof is shifted forward/backward, within a specific timing where the o overlapping can be prospected, or a specific timing where they are determined to overlap or duplicate with each other.10-01-2009
20100111734Electromagnetically-Driven Valve Mechanism and High-Pressure Fuel Supply Pump Using the Same - In a conventional configuration, a lead line weld joined portion 05-06-2010
20110253109High-Pressure Fuel Pump - It is an object of the present invention to accurately position a cylinder of a high-pressure fuel pump with respect to an attachment fitting hole provided in an engine block of an internal combustion engine in mounting the pump on the engine block.10-20-2011
20120012425LINEAR ACTUATOR AND FORKLIFT TRUCK - This invention includes a screw shaft 01-19-2012
20120090708High-Pressure Fuel Supply Pump Having Electromagnetically-Driven Intake Valve - It is an object of the present invention to improve responsiveness in valve opening and valve closing of an electromagnetically driven intake valve unit in which a valve is provided on a pressurizing chamber side of a valve seat. The valve includes an annular abutting surface that abuts the valve seat to shut off a fuel intake passage and a bottomed cylindrical part provided at an inner peripheral part of the annular abutting surface. The bottomed cylindrical part is inserted into a fuel introduction hole formed in the valve housing inside the valve seat, and the outer surface of an end part of the bottomed cylindrical part is exposed to fuel in a low pressure fuel chamber provided upstream of the fuel introduction hole.04-19-2012
20120093670High-Pressure Fuel Supply Pump Having Electromagnetically-Driven Intake Valve - The present invention eliminates a valve holder and accommodates a valve guide in a small space provided between a valve seat and a peripheral surface part of a pressure chamber to reduce the size of a pump. The valve guide guides a stroke of the valve and is provided inside the valve seat. The valve includes an annular abutting surface that abuts a valve seat formed in a valve housing to shut off a fuel intake passage and a bottomed cylindrical part is provided at an inner peripheral part of the annular abutting surface. The bottomed cylindrical part is inserted into a fuel introduction hole formed in the valve housing inside the valve seat. A member having a cylindrical surface part that supports a reciprocating motion of the valve, is fixed to the valve housing, face-to-face with an inner peripheral part of the bottomed cylindrical part.04-19-2012
20120111669LINEAR ACTUATOR AND FORKLIFT TRUCK - This invention includes a screw shaft 05-10-2012

Patent applications by Hiroyuki Yamada, Hitachinaka JP

Hiroyuki Yamada, Aichi JP

Patent application numberDescriptionPublished
20090308496Flux for lead-free solder and soldering Method - A soldering flux which is suitable as a no-clean post flux in flow soldering and which can prevent the formation of whiskers which tends to occur when soldering electronic parts to a printed circuit board using a lead-free solder (such as Sn-3.0Ag-0.5Cu) having a higher Sn content and a higher melting point than the eutectic solder contains, in addition to a rosin as a base resin and an activator, 0.2-4 mass % of at least one compound selected from acid phosphate esters and derivatives thereof. The formation of whiskers can be more effectively prevented by carrying out soldering in a nitrogen atmosphere.12-17-2009

Hiroyuki Yamada, Kanagawa JP

Patent application numberDescriptionPublished
20090294287MICROCHIP ELECTROPHORESIS METHOD AND DEVICE - An separation method comprising a temperature control process useful for microchip electrophoresis such as microchip DGGE is provided along with a device therefor.12-03-2009

Patent applications by Hiroyuki Yamada, Kanagawa JP

Hiroyuki Yamada, Shizuoka JP

Patent application numberDescriptionPublished
20090046963MAGNETIC BEARING DEVICE - A magnetic bearing device includes a main shaft (02-19-2009
20090127956MOTOR BUILT-IN MAGNETIC BEARING DEVICE - The device includes a rolling bearing unit supporting a radial load and a magnetic bearing unit supporting an axial load and/or a bearing preload; an electromagnet fitted to a spindle housing so as to confront, on a non-contact basis, a flange shaped thrust plate mounted on a main shaft; a motor rotor of a motor for driving the shaft, and a motor stator opposed to the rotor, the shaft being driven by magnetic or Lorentz forces developed between the rotor and the stator; and a sensor detecting an axial force acting on the bearing unit, and a controller controlling the electromagnet. In this device, the stiffness of a composite spring formed by the bearing unit and a support system for the bearing unit is chosen to be higher than the negative stiffness of a composite spring of a motor part comprised of the electromagnet and the motor.05-21-2009
20090133431AIR CYCLE REFRIGERATION AND COOLING SYSTEM, AND TURBINE UNIT FOR THE AIR CYCLE REFRIGERATION AND COOLING - An air cycle refrigerating/cooling system includes a first heat exchanger for cooling air, a turbine unit that has a compressor for compressing the air and an expansion turbine for adiabatically expanding the air, and a second heat exchanger for cooling the air. A compressor rotor of the compressor and a turbine rotor of the expansion turbine are attached to a common main shaft in the turbine unit in such a manner that the turbine unit drives the compressor rotor with a power generated by the turbine rotor, and the main shaft is rotatably supported by a rolling contact bearing. A part or the entirety of a thrust force applied to the main shaft is supported by an electromagnet, and a pressure equalizing device for equalizing a gas pressure at opposite ends of the rolling contact bearing is provided.05-28-2009
20090136335TURBINE UNIT FOR REFRIGERATING/COOLING AIR CYCLE - A compressor rotor 05-28-2009
20090260388AIR CYCLE REFRIGERATING/COOLING SYSTEM AND TURBINE UNIT USED THEREFOR - The air cycle refrigerating/cooling system compresses air that has flown in with a compressor (10-22-2009
20110203483THERMOPLASTIC CELLULOSE ESTER COMPOSITION AND FIBERS MADE THEREFROM - This invention provides fibers made from a thermoplastic cellulose ester composition, which can maintain excellent mechanical properties still after high temperature dyeing treatment, especially suitable as fibers mixed with polyester fibers or as fabrics woven or knitted together with polyester fibers, and also provides the thermoplastic cellulose ester composition constituting the fibers. For example, this invention provides a thermoplastic cellulose ester composition containing at least 70 to 95 wt % of a cellulose fatty acid mixed ester with an average substitution degree of 2.4 to 2.8, 5 to 25 wt % of a plasticizer and 1 to 10 wt % of a cellulose acetate with an average substitution degree of 2.3 to 2.6, and also provides fibers made from the thermoplastic cellulose ester composition.08-25-2011
20110243759CENTRIFUGAL PUMP APPARATUS - A centrifugal blood pump apparatus includes an impeller provided in a blood chamber, a permanent magnet provided in one surface of the impeller, a permanent magnet provided in an inner wall of the blood chamber, a permanent magnet provided in the other surface of the impeller, and a magnetic material and a coil provided in a motor chamber for driving the impeller to rotate via a diaphragm. Grooves for hydrodynamic bearing are formed in the diaphragm facing the impeller, and in the inner wall of the blood chamber, respectively. As a result, the impeller can be smoothly activated to drive by controlling a coil current.10-06-2011
20110318203CENTRIFUGAL PUMP APPARATUS - In this centrifugal blood pump apparatus, one permanent magnet is provided in one surface of an impeller, a second permanent magnet is provided in an inner wall of a blood chamber, a third permanent magnet is provided in the other surface of the impeller, and a fourth permanent magnet and a rotor for driving the impeller to rotate are provided, with an diaphragm being interposed. An amount of change in attractive force between the first permanent magnet and the second permanent magnet and an amount of change in attractive force between the third and fourth permanent magnets when the impeller is eccentric are made substantially equal to each other. Therefore, a levitation position of the impeller can always be maintained at a substantially central position in a housing.12-29-2011
20120003108CENTRIFUGAL PUMP APPARATUS - A centrifugal blood pump apparatus includes an impeller provided in a blood chamber, first and second permanent magnets provided in one surface and the other surface of the impeller respectively, a third permanent magnet provided in an inner wall of the blood chamber, and a magnetic element and a coil for driving the impeller to rotate with a diaphragm being interposed. First and second grooves for hydrodynamic bearing different in shape and depth from each other are formed in the inner wall of the blood chamber facing the impeller, and third and fourth grooves for hydrodynamic bearing different in shape and depth from each other are formed in the diaphragm facing the impeller. The second and fourth grooves for hydrodynamic bearing generate high hydrodynamic pressure when the impeller is activated to rotate, while the first and third grooves for hydrodynamic bearing generate high hydrodynamic pressure when the impeller steadily rotates.01-05-2012

Patent applications by Hiroyuki Yamada, Shizuoka JP

Hiroyuki Yamada, Tokyo JP

Patent application numberDescriptionPublished
20080197186Settlement server, settlement request server and settlement execution terminal - An object of the present invention is to, in settlement by electronic money, reduce burden on an electronic money server and enhance convenience for users. The function of generating transaction numbers is transferred from the electronic money server to affiliated store servers, so that the transaction numbers are generated by the affiliated store servers. The transaction numbers are each associated with transaction information calculated in accordance with a calculation rule confidential to third parties, such that the electronic money server can detect the presence of alteration of the transaction information based on the transaction number. Furthermore, at the time of generating a transaction number, a seed, which is time-limited secret information confidential to third parties, is inputted to the calculation rule along with the transaction information and used for calculating the transaction number, whereby it is possible to further enhance the level of security.08-21-2008
20080197190Monetary information processing server and monetary information processing method - An object of the present invention is to deposit money to a monetary terminal using an account in a financial institution.08-21-2008
20080318663Gaming Machine - A gaming environment is described. If a first specific symbol (for example LION symbol 12-25-2008
20090013936MATERIAL FOR TREATING EXCRETION OF PET - A pet excreta treating material made mainly of a ground material of plant origin and having a higher water absorbency in the third measurement than in the first measurement, a water absorbency of 3% to 30% by weight in the third measurement, and a specific gravity of 0.8 to 1.2 measured before the first water absorbency measurement. The water absorbency is measured by immersing a dried excreta treating material in 25° C. water for 3 seconds and calculating the weight increase by the equation below, which is taken as water absorbency (%). In the second and following measurements, the excreta treating material immediately after the preceding measurement is dried and immersed in 25° C. water for 3 seconds to obtain a water absorbency in the same manner.01-15-2009
20090104972Gaming Machine - A slot machine executes a special effect process when a predetermined condition is satisfied. In the special effect process, a main CPU changes a display style of a stopped multi symbol from a first display style to a second display style, while displaying an effect character image on a variable display portion. Further, the effect character image is displayed while being overlapped with a part of symbol display areas, while maintaining a state in which most of figures of stopped symbols can be seen.04-23-2009
20090260578PET TOILET - A pet toilet 10-22-2009
20120011098METHOD AND SYSTEM FOR MANAGING REPLICATION OF DATA - Data replication management which enables rapid retrieval while increasing the performance of the entire system, and maintaining data synchronization regarding successively updated data is performed. There are steps which comprises a step that when a slave node which has received an instruction for retrieval does not receive a return massage from a master node within a predetermined time period (Ts01-12-2012

Patent applications by Hiroyuki Yamada, Tokyo JP

Hiroyuki Yamada, Nagoya-Shi JP

Patent application numberDescriptionPublished
20090144149Ecological-point management system - An ecological-point management system includes an electric powered vehicle, a charging facility, a communication network, a management server, point recipients each having a device capable of accessing the communication network. The electric storage device of the electric powered vehicle is configured to be chargeable by the charging facility. In the ecological-point management system, an ecological point in accordance with an amount of greenhouse gas emission that can be reduced by traveling using electric power by the electric powered vehicle is given to the point recipients. The point recipients can include an owner or a driver of the electric powered vehicle, and a manufacture, an installation personnel, an owner of the charging facility, and an owner of an installation place, and further a provider of the charging power.06-04-2009
20090144150Charging system of electric powered vehicle - An electric storage device of an electric powered vehicle is configured to be chargeable by a charging facility. At the time of external charge by the charging facility, a management server selects advertising information based on information stored inside the electric powered vehicle to be charged and/or information of the charging facility performing the external charge to the electric powered vehicle including a mechanism capable of reproducing the advertising information from an advertising provider, and transmits the selected advertising information. The management server performs billing so that in exchange for the transmission of the advertising information, at least part of a charging power fee is caused to be borne by the advertising provider side to thereby discount an amount borne by an electric powered vehicle user.06-04-2009

Hiroyuki Yamada, Echizen-Shi JP

Patent application numberDescriptionPublished
20080231996VOICE COIL MOTORS AND MAGNETIC CIRCUITS THEREFOR - Two magnet pieces of rectangular prism or parallelepiped prism shape are disposed on a yoke in an angle array to construct a magnetic circuit for a voice coil motor. The magnetic circuits facilitate positioning and holding of a moving coil, and the voice coil motor is improved in positioning precision of a magnetic head.09-25-2008
20080231997VOICE COIL MOTORS AND MAGNETIC CIRCUITS THEREFOR - A magnet of rectangular prism or parallelepiped prism shape is disposed on a yoke to construct a magnetic circuit for a voice coil motor. The magnetic circuits facilitate positioning and holding of a moving coil, and the voice coil motor is improved in positioning precision of a magnetic head.09-25-2008
20120113548VOICE COIL MOTORS AND MAGNETIC CIRCUITS THEREFOR - A magnet of rectangular prism of parallelepiped prism shape is disposed on a yoke having a triangle shape or a frusto-triangular shape to construct a magnetic circuit for a voice coil motor. The magnetic circuits facilitate positioning and holding of a moving coil, and the voice coil motor is improved in positioning precision of a magnetic head.05-10-2012

Hiroyuki Yamada, Kawasaki JP

Patent application numberDescriptionPublished
20080225441MAGNETIC HEAD - According to an embodiment of the present invention, a magnetic head for recording information on a recording medium comprises a magnetic pole layer having an end face to be facing the recording medium; an auxiliary magnetic pole layer magnetically connected to the magnetic pole; and a shield layer for shielding the magnetic pole layer from an external magnetic field, the shield layer having a first surface to be facing the recording medium, a second surface to be facing the recording medium adjacent to the first surface, and a third surface adjacent to the second surface, the first surface and the second surface forming an acute external angle, the first surface and the third surface forming an obtuse external angle.09-18-2008

Hiroyuki Yamada, Iwata-Shi JP

Patent application numberDescriptionPublished
20110262891Microinjection apparatus and microinjection method - A microinjection apparatus is designed to introduce the transfecting material into the transductant by inserting a minute injection needle (10-27-2011
20120130152ROTATION DRIVE DEVICE AND CENTRIFUGAL PUMP APPARATUS USING THE SAME - A centrifugal blood pump apparatus includes an impeller provided in a blood chamber, a plurality of permanent magnets provided in the impeller, and a plurality of sets of magnetic materials and coils provided in a motor chamber for driving the impeller to rotate with a diaphragm interposed therebetween. The plurality of permanent magnets are aligned with a gap therebetween in a rotation direction of the impeller. Accordingly, if the weight of the permanent magnets is maintained at a constant value, a magnetic field can be strengthened even with a wide motor gap due to the diaphragm, as compared to an example where there is no gap between the permanent magnets.05-24-2012

Hiroyuki Yamada, Osaka-Shi JP

Patent application numberDescriptionPublished
20120135534ADSORPTION TEST METHOD OF SPHERICAL CARBON ADSORBENT - The present invention relates to an adsorption test method of a spherical carbon adsorbent, particularly Kremezin, which includes evaluating a test solution containing one or more kinds of particular uremic toxins or related compounds for the adsorbability, namely, adsorption titer, adsorption speed and/or adsorption selectivity, of the spherical carbon adsorbent.05-31-2012