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Inventor:
Suzuki; Atsushi
Address:
Kawasaki, JP
No. of patents:
21
Patents:












Patent Number Title Of Patent Date Issued
7701670 Head slider capable of being reliably released from effect of moving recording medium April 20, 2010
A medium-opposed surface of a slider body is hemisected into first and second areas by the centerline extending in the longitudinal direction of the slider body. The second area is designed to generate a positive pressure larger than that generated at the first area when a load acting
7564641 Controller-characteristic changing apparatus, storage device, controller-characteristic changing July 21, 2009
When a head is subjected to external vibration while a controller is controlling the head according to a positioning-oriented controller characteristic, the positioning-oriented controller characteristic are changed to a vibration-reducing controller characteristic. Moreover, when th
7430089 Data storage device and write processing method for data storage device September 30, 2008
A data storage device executes sector guarantee processing at an unexpected power supply disconnection. The sector guarantee processing can be accurately performed even if the fluctuation of power supply voltage during normal operation is high. The voltage of the power supply is moni
7382563 Storage apparatus, and control method and program June 3, 2008
Upon obtaining a detection signal of a shock sensor that detects a shock applied to an apparatus for output, a write disabling unit disables writing by a head on a medium over a predetermined time corresponding to a shock convergence. A determining unit determines, during the write d
7369365 Head slider capable of being reliably released from effect of moving recording medium May 6, 2008
A medium-opposed surface of a slider body is hemisected into first and second areas by the centerline extending in the longitudinal direction of the slider body. The second area is designed to generate a positive pressure larger than that generated at the first area when a load acting
7321477 Disk control apparatus, disk control method, and computer product January 22, 2008
A disk control apparatus controls a disk driving unit that performs read/write of data with a head. A vibration detecting unit detects a vibration of the disk driving unit. A disk control unit controls the disk driving unit based on the detected vibration.
7263062 Transmission apparatus with a function to switch a line in the event of a transmission failure August 28, 2007
A transmission apparatus to switch a line from a working line to a protection line in the event of a transmission-line failure on the working line. The transmission apparatus includes a classifying unit inputting cross-connect information from an external source and classifying the i
7102843 Magnetic disk apparatus and method for monitoring high-frequency oscillation components September 5, 2006
A magnetic disk apparatus includes a magnetic disk with normal and double servo sectors arranged alternately. If a servo interruption period corresponding to adjacent first servo sectors is a first servo interruption period, then a second servo interruption period that is a servo int
7061814 Semiconductor device realized by using partial SOI technology June 13, 2006
A semiconductor substrate has a bulk region and a semiconductor region formed either on a buried insulating film or on a cavity region. The bulk region contains a plurality of memory cells, sense amplifiers and column selection gates, while the semiconductor region contains word line
6992861 Head suspension for swing arm actuator January 31, 2006
The present invention is aimed to provide a head suspension having a high resonant frequency, high shock resistance and low rigidity, which greatly contributes to an improvement of a magnetic disk apparatus. In an oscillation-type actuator, at least a part of a spring arm of the head
6943971 Slider tester September 13, 2005
The slider tester is capable of solely testing a slider and securely selecting good sliders so as to reduce wasteful costs. The slider tester, which tests reading and writing functions of a slider for reading data from and writing data on a recording medium, includes a testing device for
6744680 Semiconductor device realized by using partial SOI technology June 1, 2004
A semiconductor substrate has a bulk region and a semiconductor region formed either on a buried insulating film or on a cavity region. The bulk region contains a plurality of memory cells, sense amplifiers and column selection gates, while the semiconductor region contains word line
6667855 Disk drive capable of avoiding the contact of disk and head slider in loading December 23, 2003
Disclosed herein is a disk drive including a housing having a base, a disk rotatably mounted in the housing and having a plurality of tracks, a negative pressure type head slider having a transducer for reading/writing data from/to a disk, an actuator for moving the head slider across tr
6545843 Disk drive capable of avoiding the contact of disk and head slider in loading April 8, 2003
Disclosed herein is a disk drive including a housing having a base, a disk rotatably mounted in the housing and having a plurality of tracks, a negative pressure type head slider having a transducer for reading/writing data from/to a disk, an actuator for moving the head slider across tr
6529399 Semiconductor device realized by using partial SOI technology March 4, 2003
A semiconductor substrate has a bulk region and a semiconductor region formed either on a buried insulating film or on a cavity region. The bulk region contains a plurality of memory cells, sense amplifiers and column selection gates, while the semiconductor region contains word line
5136715 Terminal apparatus for resetting by remote control August 4, 1992
A terminal apparatus having a data processing circuit wherein a reset command, which is sent from another station through the same transmission line and according to the same procedure as normal data sent from the station, is detected, and then the data processing circuit is reset in
5014240 Semiconductor memory device May 7, 1991
A cache memory stores n parts of a main memory, and the main memory is constituted by N sets. Each set is constituted by a plurality of blocks. A memory unit is provided for storing address data of upper address portions each of which designates a memory set of data stored in an address
4916670 Semiconductor memory device having function of generating write signal internally April 10, 1990
A semiconductor memory device includes: a circuit for defining a cycle in response to a clock and a write enable signal and outputting a write control signal under a specific condition; a unit for inverting the clock to an inverted clock; a circuit for generating a write signal in respon
4843595 Data reading circuit for semiconductor memory device June 27, 1989
A data reading circuit for a semiconductor memory device includes: a first input terminal and a second input terminal each receiving complementary signals. A first and a second current mirror type sense amplifiers, each including a reference node, an output terminal, a first transistor
4829477 Semiconductor memory device May 9, 1989
A semiconductor memory device is provided with a clamp circuit for clamping a driving level of a write circuit so that the information on a bit line can be transmitted quickly to a data bus at the time of a read-out operation by using transistors having a low threshold value (or a large
4775810 Parity check logic circuit October 4, 1988
A multiple-input logic circuit for carrying out an even parity check operation or an odd parity check operation on a plurality of input signals has such a circuit construction that a signal only passes through a maximum of essentially two gates between an input and an output of the m










 
 
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