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Kuroda, Kawasaki
Kouji Kuroda, Kawasaki JP
| Patent application number | Description | Published |
|---|---|---|
| 20080232064 | COOLING SYSTEM FOR INFORMATION DEVICE - To cool a blade type server disposed in an air-conditioned room, the following arrangements are made. The first is at least one shell having a ventilation passage disposed in the air-conditioned room. The second is, the following are disposed in a ventilation passage: racks, in which blade type servers each composed of a case with slim boards housed therein are stacked; cooling coils each having a coolant passage and a cooling fin and cooling a passing air; and at least one fan unit having axial-flow fans placed therein and producing air currents in one direction. The third is the fan unit forces a cooling air to flow in one direction in the ventilation passage thereby to cool the servers in the racks. The cooling coils and racks are disposed alternately so that warmed cooling air after passing through the rack is cooled by the cooling coil and then cools the next rack. | 09-25-2008 |
| 20110317357 | COOLING SYSTEM FOR INFORMATION DEVICE - To cool a blade type server disposed in an air-conditioned room, the following arrangements are made. The first is at least one shell having a ventilation passage disposed in the air-conditioned room. The second is, the following are disposed in a ventilation passage: racks, in which blade type servers earch composed of a case with slim boards housed therein are stacked; cooling coils each having a coolant passage and a cooling fin and cooling a passing air; and at least one fan unit having axial-flow fans placed therein and producing air curents in one direction. The third is the fan unit forces a cooling air to flow in one direction in the ventilation passage thereby to cool the servers in the racks. The cooling coils and racks are dispossed alternately so that warmed cooling air after passing through the rack is cooled by the cooling coil and then cools the next rack. | 12-29-2011 |
Sumio Kuroda, Kawasaki JP
| Patent application number | Description | Published |
|---|---|---|
| 20080218889 | INFORMATION TRANSFER MASTER FOR MAGNETIC TRANSFER AND MAGNETIC TRANSFER METHOD - An information transfer master has servo information pattern to be magnetically transferred to a magnetic recording medium having a lubrication layer thereon; and a contact surface to contact the magnetic recording medium has surface free energy that is 45 mN/m or less when the servo information pattern is magnetically transferred. | 09-11-2008 |
| 20080239896 | GENERATION METHOD OF CLOCK SIGNAL OF PATTERNED MEDIUM, PATTERNED MEDIUM AND STORAGE DEVICE - A clock generation method detects from servo signals a degree of decentering of a patterned medium having recording pits arranged in a circular pattern and changes a clock frequency for recording/reproduction based on the detected degree of decentering. | 10-02-2008 |
| 20090244793 | MAGNETIC TRANSFER METHOD AND MASTER MANUFACTURING METHOD - A magnetic transfer method includes arranging a magnetic transfer master so as to cause a surface of the magnetic transfer master to be in proximity to or in contact with a vertical magnetic recording medium. The magnetic transfer master has on the surface thereof a concave-convex pattern representing information. A top surface of a convex portion of the concave-convex pattern is divided by a plurality of projecting threads lined up and extending at an interval shorter than a shortest pattern length of the concave-convex pattern. The magnetic transfer method includes applying a magnetic field to the magnetic transfer master in a direction along the surface and intersecting the projecting threads. | 10-01-2009 |
| 20100039725 | ECCENTRICITY CORRECTION METHOD, SIGNAL PROCESSING CIRCUIT, MAGNETIC STORAGE APPARATUS AND PERPENDICULAR MAGNETIC RECORDING MEDIUM - A magnetic storage apparatus has a reproducing head to reproduce information from a perpendicular magnetic recording medium that is recorded with servo information, eccentricity correction data and read/write data. The apparatus further has a filter part to filter a reproduced output of the reproducing head by filtering the servo information which has a differentiated waveform by a non-differentiating characteristic and by filtering the eccentricity correction data and the read/write data which have rectangular waveforms by a differentiating characteristic, a demodulating part to demodulate the servo information, the eccentricity correction data and the read/write data that are filtered by the filter part, and a servo system to carry out a control process including an eccentricity control based on the servo information and the eccentricity correction data that are demodulated. | 02-18-2010 |
Yasuhide Kuroda, Kawasaki JP
| Patent application number | Description | Published |
|---|---|---|
| 20080225500 | Printed circuit board unit and printed wiring board - An electronic component has a pair of electrically-conductive terminals. Electrically-conductive pads are opposed to each other on the surface of a substrate at the inner edges defined along parallel first reference lines. Solder is placed on the electrically-conductive pads for bonding the electrically-conductive terminals to the electrically-conductive pads, respectively. The electrically-conductive pad includes protruding sections formed continuous with a main section having the side edges along parallel second reference lines intersecting with the first reference lines. The protruding sections protrude outside the second reference lines along corresponding one of the first reference line. The surface tensions of the melted solder on the main section and the protruding sections are balanced with each other. The electronic component is thus prevented from standing up. The electronic component is prevented from suffering from tombstone phenomenon. | 09-18-2008 |
Yasuhiro Kuroda, Kawasaki JP
| Patent application number | Description | Published |
|---|---|---|
| 20110016259 | Information processing device, data transfer circuit, and control method of information processing device - Cross bar control circuits are connected to each other by two buses, which are a broadcast bus for transmitting a broadcast packet from a system board to all system boards other than the system board and a point-to-point bus for transmitting a unicast packet from a system board to another system board. When unicast packets passing through the point-to-point bus are too many, the unicast packets are output by using the broadcast bus in addition to the point-to-point bus if the broadcast bus is not used. In this way, the unicast packets can be output quickly and efficiently, so that use efficiency of the broadcast bus and the point-to-point bus can be increased as a whole. | 01-20-2011 |
| 20110072298 | Information processing device, transfer circuit and error controlling method for information processing device - An information processing device includes SBs; an XBB for executing data transfer between the SBs; and an SCF for managing and controlling the SBs and the XBB. The SB includes a transmitting/receiving unit for transmitting a notification packet indicating occurrence of an error via the XBB when detecting the occurrence of the error. The SCF includes an executing unit for executing a configuration change process corresponding to an instruction when detecting the instruction related to the SB, a suspending unit for suspending acceptance of an error report from the SB in which the error occurs during execution of the configuration change process and an XBB controller for controlling the XBB to destroy the notification packet received from the SB of which configuration change process is being executed and controlling the XBB to inhibit transfer of the notification packet to the SB of which configuration change process is being executed. | 03-24-2011 |
Yosuhide Kuroda, Kawasaki JP
| Patent application number | Description | Published |
|---|---|---|
| 20120024512 | HEAT SINK DEVICE AND METHOD OF REPAIRING SEMICONDUCTOR DEVICE - A method of repairing a semiconductor device includes turning a press member to apply pressure on an electronic component which is mounted on a substrate. A heat sink which is provided on the electronic component via a bonding layer is thus displaced with respect to the electronic component in a transverse direction. The heat sink is removed from the electronic component by shearing the bonding layer with the press member. | 02-02-2012 |