Takayuki Fukushima
Takayuki Fukushima, Okazaki-City JP
Patent application number | Description | Published |
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20090038590 | CHARGE CONTROL UNIT AND CHARGE CONTROL SYSTEM FOR FUEL INJECTION VALVE - A charge control unit controls electricity charged to a piezo element, which is for actuating a backpressure control valve so as to control backpressure applied to a valve element for a fuel injection valve. The backpressure control valve is configured to start to decrease the backpressure to actuate the valve element to open an injection port of the fuel injection valve when voltage of the electricity exceeds a threshold. A charge unit increases the voltage by repeating increasing and decreasing a drive current, which is supplied to the piezo element, for multiple times for charging the piezo element. A switching unit alternates the increasing and the decreasing such that the voltage exceeds the threshold in an intermediate period in a middle of a specific increasing period among multiple increasing periods, in each of which the drive current increases. | 02-12-2009 |
20110061632 | Charge control unit and charge control system for fuel injection valve - A charge control unit controls electricity charged to a piezo element, which is for actuating a backpressure control valve so as to control backpressure applied to a valve element for a fuel injection valve. The backpressure control valve is configured to start to decrease the backpressure to actuate the valve element to open an injection port of the fuel injection valve when voltage of the electricity exceeds a threshold. A charge unit increases the voltage by repeating increasing and decreasing a drive current, which is supplied to the piezo element, for multiple times for charging the piezo element. A switching unit alternates the increasing and the decreasing such that the voltage exceeds the threshold in an intermediate period in a middle of a specific increasing period among multiple increasing periods, in each of which the drive current increases. | 03-17-2011 |
Takayuki Fukushima, Ichihara-Shi JP
Patent application number | Description | Published |
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20110205862 | THERMALLY ASSISTED MAGNETIC RECORDING MEDIUM AND MAGNETIC RECORDING STORAGE - Disclosed is a thermally assisted magnetic recording medium comprising a substrate, a plurality of underlayers formed on the substrate, and a magnetic layer which is formed on the underlayers and predominantly comprised of an alloy having a L1 | 08-25-2011 |
20110235479 | THERMALLY ASSISTED MAGNETIC RECORDING MEDIUM AND MAGNETIC RECORDING STORAGE - Disclosed is a thermally assisted magnetic recording medium comprising a substrate, a plurality of underlayers formed on the substrate, and a magnetic layer which is formed on the underlayers and predominantly comprised of an alloy having an L1 | 09-29-2011 |
20110293966 | MAGNETIC RECORDING MEDIUM AND MAGNETIC RECORDING/REPRODUCING APPARATUS - A magnetic recording medium which has been made by forming at least one magnetic layer having a granular structure on a substrate by sputtering, wherein said at least one magnetic recording layer having a granular structure comprises magnetic grains separated from each other by an oxide, and is made by sputtering a target comprising cobalt oxide and substantially free from metallic chromium and a chromium alloy. The magnetic grains in the granular structure have an average grain diameter of not larger than 6 nm, and are separated from each other by the oxide with a grain boundary width of at least 1.5 nm. The magnetic grains are minute and separated from each other with an enhanced grain boundary width, and the magnetic recording medium exhibits an enhanced recording density and improved electromagnetic conversion characteristics. | 12-01-2011 |
20120300600 | THERMALLY ASSISTED MAGNETIC RECORDING MEDIUM AND MAGNETIC RECORDING AND REPRODUCING DEVICE - A thermally assisted magnetic recording medium having a structure in which a first magnetic layer | 11-29-2012 |
20120307398 | THERMALLY ASSISTED MAGNETIC RECORDING MEDIUM AND MAGNETIC STORAGE DEVICE - Disclosed is a thermally assisted magnetic recording medium comprising a substrate, a plurality of underlayers formed on the substrate, and a magnetic layer which is formed on the underlayers and predominantly comprised of an alloy having a L1 | 12-06-2012 |
20130194901 | HEAT-ASSISTED MAGNETIC RECORDING MEDIUM AND MAGNETIC RECORDING AND READING APPARATUS - The heat-assisted magnetic recording medium of the present invention has a substrate, an under layer formed on the substrate, and a magnetic layer formed on the under layer, in which the magnetic layer includes an alloy having a L1 | 08-01-2013 |
Takayuki Fukushima, Takarazuka-Shi JP
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20140210224 | END EFFECTOR DEVICE AND SUBSTRATE CONVEYING ROBOT INCLUDING END EFFECTOR DEVICE - An end effector device attached to a tip end portion of a robot arm includes a plurality of support units provided on a blade. Each of the support units includes: a plurality of nail pieces configured to support peripheral portions of a plurality of semiconductor wafers such that the semiconductor wafers are parallel to one another and spaced apart from one another; and a pitch changing mechanism configured to change upper-lower intervals of the nail pieces. The pitch changing mechanism includes: a coil spring configured to support the plurality of nail pieces such that the plurality of nail pieces are spaced apart from one another in an upper-lower direction and elastically deform in the upper-lower direction; and an operating mechanism configured to cause the coil spring to elastically deform in the upper-lower direction. The operating mechanism includes a piston pin fitted in the coil spring to move up and down. | 07-31-2014 |
20150016935 | SUBSTRATE RETAINING DEVICE - Included are: a support mechanism configured to change a pitch at which a plurality of substrate retaining units are arranged; urging mechanisms provided for the respective substrate retaining units and configured to urge the movable units to cause movable retaining members to press-hold substrates; and a push back mechanism configured to release the press-holding of the substrates by the movable retaining members. It is configured to position a push back portion of the push back mechanism at a standby position, at which the push back portion makes no contact with the movable units. | 01-15-2015 |
Takayuki Fukushima, Tokyo JP
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20150191670 | POWDER LUBRICANT COMPOSITION AND METHOD FOR MANUFACTURING SEAMLESS STEEL PIPE - A powder lubricant composition according to the present invention includes 65 parts by mass to 95 parts by mass of sodium borate, and 5 parts by mass to 35 parts by mass of cryolite. A method for manufacturing a seamless steel pipe according to the present invention includes adhering the above-described powder lubricant composition to a pipe inner surface of a work piece which is piercing rolled to have a tubular shape, and elongation rolling on the work piece after the adhering of the powder lubricant composition. | 07-09-2015 |