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Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Inventor:
Kuwajima; Hideki
Address:
Kyoto, JP
No. of patents:
65
Patents:


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Patent Number Title Of Patent Date Issued
D508488 Magnetic head suspension August 16, 2005
D508487 Magnetic head suspension August 16, 2005
D507565 Magnetic head suspension July 19, 2005
D507264 Magnetic head suspension July 12, 2005
D505419 Magnetic head suspension May 24, 2005
D504424 Magnetic head suspension April 26, 2005
D502699 Magnetic head suspension March 8, 2005
D500315 Magnetic head suspension December 28, 2004
7855856 Disk device employing a CSS system head supporting unit December 21, 2010
A disk drive includes a magnetic recording medium rotatably supported, a spindle motor for spinning the recording medium, a slider having a head, a supporting arm having the slider at a first end facing the recording medium, a bearing for holding the supporting arm rotatably along a
7847194 Opening and closing device December 7, 2010
An opening and closing device to be used in a variety of electronic apparatuses is disclosed, and the opening and closing device can be manufactured at a low cost and ensures a positive opening/closing action. After the reversing cam moves along an axial line, a movable cam protrudin
7813123 Opening and closing device October 12, 2010
An opening and closing device in which a movable gear is movably disposed on a fixed plate, and a fixed gear engaged with the movable gear is secured to a right end of a spring member applying a force to a movable plate in a moving direction. This right end of the spring member is in
7804665 Head support device, disk device having the head support device, and portable electronic device September 28, 2010
A head support device that is resistant to shock due to external impact, a disk device including the head support device, and a portable electronic device including the disk device are disclosed. In the head support device, a head support arm on which a head slider with a head is dispose
7564691 Opening and closing mechanism, and electronic device July 21, 2009
An opening and closing mechanism includes a fixed member; a movable member disposed on the top face of this fixed member to be movable and rotatable in predetermined directions; a spring applying a spring force in the moving and rotating directions of this movable member; and a guide for
7342743 Shock-absorbing member, shock-absorbing method of electronic device employing the member, and el March 11, 2008
Shock-absorbing member 18, a shock-absorbing method and an electronic device employing the member are disclosed, wherein the shock-absorbing member prevents electronic equipment main body from receiving a large shock and avoids a fatal damage to the equipment, even when the equipment
7317271 Fluid bearing motor, and disk drive mounted with same January 8, 2008
The stop ring having a surface nearly vertical to the rotational center axis, which is projected at the inner periphery of the hollow cylinder of the rotor section, and the stepped surface of the fixed shaft secured on the chassis are opposed to each other with a predetermined slight
7312955 Disk drive piezoelectric actuator with coupling portion extending across a slit between flexible December 25, 2007
A piezoelectric actuator with a reinforced bending mode to suppress bending resonance caused by extension/contraction movements of the piezoelectric actuator and a disk drive using the piezoelectric actuator are provided. A flexible substrate is separated by a slit. A first piezoelec
7312953 Head suspension assembly and disk drive using the same December 25, 2007
A head suspension assembly includes a head, a load beam carrying the head at one end, a resilient member joining the load beam and a carriage, and a pivot bearing provided between the load beam and the carriage and structured so that the load beam is movable in a direction perpendicular
7265945 Head drive device including head support mechanism having support arm rotatable relative to base September 4, 2007
A head support mechanism of the invention comprises a head (1011) for recording on a disk or reproducing a disk, a head support member composed of this head (1011) and a support arm (2) having this head (1011) attached to one end portion thereof, a base arm (12) including a rotation
7265939 Spindle motor and disk drive unit September 4, 2007
Disclosed is a spindle motor and a disk drive unit equipped with the same, having advantages of preventing hard collision between a disk and a signal conversion element due to lifting of rotating components, and avoiding the signal conversion element and swing means for positioning t
7245456 Head support device and disk drive using the same July 17, 2007
A head support device includes a slider with a head, a support arm having a leading end provided with the slider 1 via a flexure and being integral with, in the vicinity of its base end, a spring member along a centerline, and a base arm having two pivots contacting the support arm.
7230798 Head support device and disk drive using the same June 12, 2007
A low profile head support device has excellent shock resistance and can apply necessary and sufficient biasing forces to a head and a disk drive using the same. The head support device includes a head; head suspension 2 to suspend the head; base arm 4 pivotally secured to actuator axis
7218479 Head support device with bearing and elastic member May 15, 2007
The disclosed suspension assembly (S) for carrying a magnetic recording head in close following relation to a recording disc includes an improved arrangement for supplying a load to the recording head. The suspension assembly (S) includes a flexible gimbal section (10a) for mounting the
7193820 Head actuator having dummy weight used to coincide mass and swing movement centers March 20, 2007
An object of the present invention is to provide a hard disk drive or related apparatus in which a possibility of head crash can be reduced to minimum even if the apparatus receives an external impact during the operating state. To achieve the object, according to the present inventi
7170717 Head suspension assembly and disk drive using the same January 30, 2007
A head suspension assembly includes (a) a slider having a head for recording into/reproducing from a record medium, mounted thereon, (b) a load beam having (i) the slider disposed via a flexure at one end, and (ii) a leaf-spring-like resilient member integrally formed therewith in th
7149059 Head supporting device and disk apparatus December 12, 2006
A head supporting device includes a supporting arm that is swingable in a plane parallel to a recording surface of a recording medium around a first swing axis and in a plane perpendicular to the recording surface of the recording medium around a second swing axis, a head that is attache
7146623 Head support device and it's driving method, and drive disk using same December 5, 2006
The present invention provides a head support mechanism wherein the position can be accurately corrected at a high speed when the mode is shifted from reproducing to recording, and also, the deflection of recording magnetic field from the direction of initialized magnetic orientation
7141911 Driving method of piezoelectric actuator, piezoelectric actuator, and disk recording and reprodu November 28, 2006
In a disclosed method, a piezoelectric element 1 has an asymmetrical hysteresis characteristic of polarization-electric field different in absolute values between a coercive field of positive electric side and a coercive field of negative electric field side, and is polarized in the
7119992 Disk drive system with inertial arm preventing shock October 10, 2006
To provide a disk drive system provided with an inertial latching mechanism which has high reliability and can be arranged in a thin-model disk drive system. There is provided an inertial arm (7) engaging an actuator (22) when a head arm (25) is in or near a parking position and rele
7110221 Disk drive September 19, 2006
An actuator gripping device which prevents the actuator of the head support device from serious trouble such as damage to the surface of the recording medium due to external shocks. An actuator 7 comprises actuator sub-unit 27 having a tab 8 at one end and provided with a head 9, and a
7106557 Head supporting mechanism September 12, 2006
A load beam is attached to an actuator arm that is allowed to rock around a pivotal axis by a voice coil motor, etc., as a slider supporting member, the base end of a flexure is attached to the load beam with the free end thereof being left, a slider supporting member is attached to
7095593 Apparatus with head and head support device having rotation supporting point August 22, 2006
A head support device is thin and assures excellent flexibility and shock resistance while applying a sufficient load to a head. A disk drive uses the head support device. The head support device comprises a support arm, a head disposed at one end of the support arm, which is mounted on
7088557 Head supporting device and disk drive unit using the same August 8, 2006
A head supporting device with a loading/unloading mechanism and a disk drive unit using the head supporting device. The head supporting device and a voice coil motor (VCM) make up a head actuator of the drive system. The head actuator has i) a support arm rotatable on a bearing, moving i
7084536 Fluid bearing motor, and disk drive mounted with same August 1, 2006
The stop ring having a surface nearly vertical to the rotational center axis, which is projected at the inner periphery of the hollow cylinder of the rotor section, and the stepped surface of the fixed shaft secured on the chassis are opposed to each other with a predetermined slight
7072150 Head support mechanism and thin film piezoelectric actuator July 4, 2006
A head support mechanism includes a slider for carrying a head at least for performing reproduction of data from a disk, and a holding portion for holding the slider. The holding portion includes: a first portion including a first piezoelectric element; a second portion including a s
7072149 Head support mechanism and thin film piezoelectric actuator July 4, 2006
A head support mechanism includes a slider for carrying a head at least for performing reproduction of data from a disk, and a holding portion for holding the slider. The holding portion includes: a first portion including a first piezoelectric element; a second portion including a s
7068474 Thin film piezoelectric element; actuator, head support mechanism, and disc recording and reprod June 27, 2006
A first counter electrode and a second counter electrode, for electrically coupling a first piezoelectric element unit and a second piezoelectric element unit, for composing a thin film piezoelectric element are common floating electrodes. A first principal electrode film and a second
7068469 Head supporting assembly, head driving assembly, and disk drive apparatus June 27, 2006
A head supporting assembly has high flexibility, while applying a necessary and sufficient pressing force to a head, is excellent in shock resistance, and provides a stabilized pressing force not affected by manufacturing variations, and a head driving assembly and a disk drive appar
7046485 Piezoelectric actuator, disk drive using the same and manufacturing method thereof May 16, 2006
A piezoelectric actuator, the manufacturing method of the same and the head suspension assembly using the same are disclosed, wherein the piezoelectric actuator can be disposed easily without any breakage in mounting and can provide a magnetic head with fine displacements efficiently
7046484 Magnetic head supporting device having dummy weight used to coincide mass and swing movement cen May 16, 2006
An object of the present invention is to provide a hard disk drive or related apparatus in which a possibility of head crash can be reduced to minimum even if the apparatus receives an external impact during the operating state. To achieve the object, according to the present inventi
7035054 Magnetic head apparatus, magnetic head supporting mechanism and magnetic recording apparatus hav April 25, 2006
A load beam is provided with a base plate and a slider. A magnetic head apparatus is fixed to a head arm via a base plate. In a mechanism or structure for supporting such a magnetic head supporting mechanism, an elastically deformable portion is provided between the base plate and the
7031099 Head positioner and information recording/replaying apparatus April 18, 2006
A head positioner has a configuration employing a dual-stage actuator method, wherein positioning control is performed for a write/read according to cooperative operations of a coarse actuator and a fine actuator, and the fine actuator is configured using a piezoelectric device. A po
7027267 Head support mechanism and thin film piezoelectric actuator April 11, 2006
A head support mechanism includes a slider for carrying a head at least for performing reproduction of date from a disk, and a holding portion for holding the slider. The holding portion includes; a first portion including a first piezoelectric element; a second portion including a s
7006335 Head support mechanism and thin film piezoelectric actuator February 28, 2006
A head support mechanism includes a slider for carrying a head at least for performing reproduction of data from a disk, and a holding portion for holding the slider. The holding portion includes: a first portion including a first piezoelectric element; a second portion including a s
6992863 Disk drive apparatus January 31, 2006
A disk drive apparatus having a head support device with high impact resistance which ensures L/UL operation and CSS operation. The disk drive apparatus includes a supporting arm rotating about a bearing in a direction perpendicular to a recording face of a recording medium; and a ra
6965492 Rotor assembly, information-recording/-reproducing device using the rotor assembly and method of November 15, 2005
An information-recording/-reproducing device comprises a rotor assembly formed of a disc portion having information recording layer provided on the main surface and an axle portion, the disc portion being connected at the center of a surface opposite to the main surface with the rotating
6964086 Method of manufacturing thin film piezoelectric element, and element housing jig November 15, 2005
A method comprises: bonding a plurality of thin film piezoelectric elements, formed on a substrate, onto a temporary fixing substrate via an adhesive layer; selectively removing the substrate to expose the thin film piezoelectric elements; fixing an element housing jig having sectional
6963473 Head arm assembly and disk drive device with the head arm assembly having enhanced impact resist November 8, 2005
A head arm assembly (HAA) includes a head slider having at least one head element, an arm member for supporting the head slider at one end section, an actuator, mounted to the other end section of the arm member, for rotationally moving the arm member in a direction substantially paralle
6950285 Head arm assembly with an arm motion limiting member and disk drive device with the head arm ass September 27, 2005
A Head Arm Assembly includes a head slider having at least one head element, an arm member for supporting the head slider at one end section, an actuator, mounted to the other end section of the arm member for rotationally moving the arm member in a direction substantially parallel w
6943990 Head support mechanism, information recording/reproducing apparatus, and method of manufacturing September 13, 2005
A head support mechanism includes a head and a slider for carrying the head, the head being caused to track by main driver, wherein the head support mechanism further includes sub-driving device including a thin film and causing the head to have a micro-movement; and the sub-driving
6917498 Head support mechanism and thin film piezoelectric actuator July 12, 2005
A head support mechanism includes a slider for carrying a head at least for performing reproduction of data from a disk, and a holding portion for holding the slider. The holding portion includes: a first portion including a first piezoelectric element; a second portion including a s
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