Patents Assigned to Suncall Corporation
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Publication number: 20120250191Abstract: Provided that a distance between a distal edge of a supporting part and a dimple is represented by L1, a load beam part is bended around a first bending line within a center region away from the distal edge of the supporting part by more than or equal to 0.4*L1 and less than or equal to 0.6*L1 and also around a second bending line positioned closer to a proximal side in the suspension longitudinal direction than the first bending line. Paired leaf springs are bended around a third bending line. The second bending line is positioned within a proximal region within 0.22*L1 from the distal edge of the supporting part, and no paired flange portions exist at an area at which the second bending line is positioned.Type: ApplicationFiled: March 28, 2012Publication date: October 4, 2012Applicant: Suncall CorporationInventor: Yasuo FUJIMOTO
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Publication number: 20120236438Abstract: The present invention provides a magnetic head suspension, wherein a supporting portion such as an arm or base plate includes a pair of supporting pieces extending from its opposite sides in the widthwise direction to a tip-end side of the suspension, and a concave portion which is defined by the pair of supporting pieces and is opened toward the tip-end side of the suspension, there is provided an elastically-deformable elastic plate which is connected to the pair of supporting pieces at a first end and a second end in the widthwise direction of the magnetic head suspension, the member forming the load beam portion is connected to the elastic plate, and the elastic plate forms the load bending portion.Type: ApplicationFiled: May 11, 2012Publication date: September 20, 2012Applicant: Suncall CorporationInventors: Satoru TAKASUGI, Yasuo Fujimoto, Kenji Mashimo
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Patent number: 8270117Abstract: In the magnetic head slider locking apparatus according to the present invention, a spring portion takes a sandwiching posture in which a center region of a proximal-side engage portion sandwiches a magnetic head slider in a suspension longitudinal direction in cooperation with a distal-side engage portion when an operational force to the spring portion is released after the magnetic head slider has been mounted in a state where the spring portion has been elastically deformed from an initial posture to an elastically deformed posture.Type: GrantFiled: January 31, 2011Date of Patent: September 18, 2012Assignee: Suncall CorporationInventor: Masahito Wakahara
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Patent number: 8270121Abstract: The present invention provides a magnetic head suspension, wherein a supporting portion such as an arm or base plate includes a pair of supporting pieces extending from its opposite sides in the widthwise direction to a tip-end side of the suspension, and a concave portion which is defined by the pair of supporting pieces and is opened toward the tip-end side of the suspension, there is provided an elastically-deformable elastic plate which is connected to the pair of supporting pieces at a first end and a second end in the widthwise direction of the magnetic head suspension, the member forming the load beam portion is connected to the elastic plate, and the elastic plate forms the load bending portion.Type: GrantFiled: May 11, 2012Date of Patent: September 18, 2012Assignee: Suncall CorporationInventors: Satoru Takasugi, Yasuo Fujimoto, Kenji Mashimo
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Publication number: 20120224280Abstract: The present invention provides a magnetic head suspension, wherein a supporting portion such as an arm or base plate includes a pair of supporting pieces extending from its opposite sides in the widthwise direction to a tip-end side of the suspension, and a concave portion which is defined by the pair of supporting pieces and is opened toward the tip-end side of the suspension, there is provided an elastically-deformable elastic plate which is connected to the pair of supporting pieces at a first end and a second end in the widthwise direction of the magnetic head suspension, the member forming the load beam portion is connected to the elastic plate, and the elastic plate forms the load bending portion.Type: ApplicationFiled: May 11, 2012Publication date: September 6, 2012Applicant: Suncall CorporationInventors: Satoru TAKASUGI, Yasuo FUJIMOTO, Kenji MASHIMO
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Publication number: 20120218665Abstract: The present invention provides a magnetic head suspension, wherein a supporting portion such as an arm or base plate includes a pair of supporting pieces extending from its opposite sides in the widthwise direction to a tip-end side of the suspension, and a concave portion which is defined by the pair of supporting pieces and is opened toward the tip-end side of the suspension, there is provided an elastically-deformable elastic plate which is connected to the pair of supporting pieces at a first end and a second end in the widthwise direction of the magnetic head suspension, the member forming the load beam portion is connected to the elastic plate, and the elastic plate forms the load bending portion.Type: ApplicationFiled: May 11, 2012Publication date: August 30, 2012Applicant: Suncall CorporationInventors: Satoru Takasugi, Yasuo Fujimoto, Kenji Mashimo
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Publication number: 20120218664Abstract: The present invention provides a magnetic head suspension, wherein a supporting portion such as an arm or base plate includes a pair of supporting pieces extending from its opposite sides in the widthwise direction to a tip-end side of the suspension, and a concave portion which is defined by the pair of supporting pieces and is opened toward the tip-end side of the suspension, there is provided an elastically-deformable elastic plate which is connected to the pair of supporting pieces at a first end and a second end in the widthwise direction of the magnetic head suspension, the member forming the load beam portion is connected to the elastic plate, and the elastic plate forms the load bending portion.Type: ApplicationFiled: May 11, 2012Publication date: August 30, 2012Applicant: Suncall CorporationInventors: Satoru TAKASUGI, Yasuo FUJIMOTO, Kenji MASHIMO
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Publication number: 20120218666Abstract: A load beam part main body portion's side edges include a proximal end region inclined at a first angle and a distal end region inclined at a smaller second angle. Where āLā is a distance in a suspension longitudinal direction between a supporting part's distal end portion and a dimple, a distance āaā in the same direction from the supporting part's distal end portion until an inflection point between the proximal end region and the distal end region satisfies 0.44 L?a?0.78 L. A support plate's side edges fixed to the load beam part main body portion's lower surface is located, in the suspension width direction, inward from a virtual line connecting the proximal end region's proximal end and the distal end region's distal end and outward from the proximal end region and the distal end region, and extends, in the suspension longitudinal direction, across the inflection point.Type: ApplicationFiled: June 13, 2011Publication date: August 30, 2012Applicant: Suncall CorporationInventor: Yasuo FUJIMOTO
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Patent number: 8248730Abstract: The magnetic head slider locking apparatus according to the present invention includes a fixed portion, a movable portion and paired right and left spring portions. Upon transition from an initial posture to an elastically deformed posture, the movable portion is wholly moved toward the proximal side in the suspension longitudinal direction and, at the same time, the inner end of each of paired proximal-side engagement regions in the suspension width direction is moved toward the inner side in the suspension width direction, so that the distal end and the proximal end of each of the proximal-side extending regions are moved toward the inner side and the outer side in the suspension width direction, respectively, while the proximal-side extending regions are wholly moved toward the proximal side in the suspension longitudinal direction.Type: GrantFiled: April 29, 2011Date of Patent: August 21, 2012Assignee: Suncall CorporationInventor: Masahito Wakahara
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Patent number: 8248735Abstract: In a magnetic head suspension, a piezoelectric element is disposed within a supporting part's open section so that at least a part of its distal-side end surface faces a distal-side wall surface of the supporting part's distal end section forming a distal-side gap between the distal-side end surface and the distal-side wall surface and at least a part of its proximal-side end surface faces a proximal-side wall surface of the supporting part's proximal end section forming a proximal-side gap between the proximal-side end surface and the proximal-side wall surface in a state where the piezoelectric element's upper and lower electrode layers do not face the supporting part and any rigid members that are fixed to the supporting part. The piezoelectric element is fixed to the supporting part by a distal-side insulative adhesive agent and a proximal-side insulative adhesive agent.Type: GrantFiled: August 27, 2010Date of Patent: August 21, 2012Assignee: Suncall CorporationInventors: Yasuo Fujimoto, Satoru Takasugi, Kenji Mashimo
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Publication number: 20120206835Abstract: In a magnetic head suspension according to the present invention, each of paired right and left connecting beams that are positioned on both sides of an open section, with which paired piezoelectric elements are at least partially overlapped in a plan view, in a suspension width direction and connect a proximal end section that is directly or indirectly connected to a main actuator and a distal end section to which the load bending part is connected includes proximal-side and distal-side beams. The distal-side beam is inclined with respect to the proximal-side beam in a plan view such that a connection point between the proximal-side and distal-side beams is located closer to a suspension longitudinal center line relative to a virtual line connecting the proximal end of the proximal-side beam and the distal end of the distal-side beam.Type: ApplicationFiled: April 25, 2012Publication date: August 16, 2012Applicant: SUNCALL CORPORATIONInventors: Yasuo Fujimoto, Satoru Takasugi
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Patent number: 8243392Abstract: A magnetic head slider locking apparatus includes a fixed portion having a distal-side engage portion engaged with a slider's distal end and fixed to a flexure part, an endless spring portion surrounding the fixed portion in a plan view, a connection portion connecting the fixed portion to the spring portion, and a proximal-side engage portion provided to the spring portion so as to be engaged with a slider's proximal end. The spring portion takes an initial posture where no external operational force is applied thereto so that the proximal-side engage portion is located closer to a distal end side in the suspension longitudinal direction than the slider's proximal end, and also takes an elastically deformed posture where an external operational force is applied thereto so that the proximal-side engage portion is located closer to a proximal end side in the suspension longitudinal direction than the slider's proximal end.Type: GrantFiled: July 9, 2010Date of Patent: August 14, 2012Assignee: Suncall CorporationInventor: Masahito Wakahara
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Publication number: 20120200381Abstract: A molded coil according to the present invention includes a coil body that is formed by an elongated insulation-coated conductor. The coil body has a spiral portion winded around in a spiral manner, a first end portion forming a beginning end of the spiral portion, and a second end portion forming a terminating end of the spiral portion. The molded coil also includes an insulative locking member that keeps a shape of the spiral portion so as to prevent the spiral portion from expanding in a vertical direction, and an insulative resin body that covers the spiral portion with the locking member being attached thereto.Type: ApplicationFiled: January 12, 2012Publication date: August 9, 2012Applicant: Suncall CorporationInventors: Motoaki KIMURA, Takashi Fujimura
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Patent number: 8233244Abstract: In a magnetic head suspension according to the present invention, each of paired right and left connecting beams that are positioned on both sides in a suspension width direction of an open section, with which piezoelectric elements are at least partially overlapped in a plan view, and connect a proximal end section directly or indirectly connected to a main actuator and a distal end section to which a load bending part is connected includes a convex portion projecting in a thickness direction that is perpendicular to the disk surface. The configuration makes it possible to improve the impact resistance and raise the resonance frequency of a magnetic head suspension capable of performing micro motion of a magnetic head slider by the piezoelectric elements.Type: GrantFiled: April 23, 2010Date of Patent: July 31, 2012Assignee: Suncall CorporationInventor: Yasuo Fujimoto
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Patent number: 8203807Abstract: The present invention provides a magnetic head suspension, wherein a supporting portion such as an arm or base plate includes a pair of supporting pieces extending from its opposite sides in the widthwise direction to a tip-end side of the suspension, and a concave portion which is defined by the pair of supporting pieces and is opened toward the tip-end side of the suspension, there is provided an elastically-deformable elastic plate which is connected to the pair of supporting pieces at a first end and a second end in the widthwise direction of the magnetic head suspension, the member forming the load beam portion is connected to the elastic plate, and the elastic plate forms the load bending portion.Type: GrantFiled: February 8, 2008Date of Patent: June 19, 2012Assignee: Suncall CorporationInventors: Satoru Takasugi, Yasuo Fujimoto, Kenji Mashimo
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Patent number: 8189299Abstract: The present invention provides a magnetic head suspension including a flexure part including a magnetic head mounting region for supporting a magnetic head slider; a load bending part for generating a load to press the magnetic head slider towards a recording medium; a load beam part for transmitting the load generated by the load bending part to the magnetic head mounting region; and a base part connected to a proximal end side of the load bending part. The base part has a thin thickness region extending from a distal end towards a proximal end side by a predetermined distance and having a thin thickness compared to an other region.Type: GrantFiled: September 6, 2007Date of Patent: May 29, 2012Assignee: Suncall CorporationInventor: Yasuo Fujimoto
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Publication number: 20120106005Abstract: A load beam part, which includes a plate-like main body portion facing a disk surface and paired flange portions bended from both side edges of the main body portion in a suspension width direction so as to extend toward a direction opposite from the disk surface, is bended at first and second bending lines in such a convex manner as to project in the direction toward the disk surface, the first bending line being positioned between the proximal end portion of the load beam part and the dimple in the suspension longitudinal direction and extending along the suspension width direction, the second bending line being positioned between the first bending line and the dimple in the suspension longitudinal direction and extending along the suspension width direction.Type: ApplicationFiled: November 1, 2011Publication date: May 3, 2012Applicant: Suncall CorporationInventor: Yasuo FUJIMOTO
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Patent number: 8159789Abstract: It is an object to achieve prevention of lowering resonant frequency and improved production efficiency while achieving reduction in weight of a supporting part with a boss portion and reduction in thickness at area at which the boss portion is located. In the present invention, the supporting part includes a first supporting member with which a load bending part is connected, and a second supporting member with the boss portion and a main body region extended radially outward from the boss portion. At least one of the inner periphery of the mount hole and the outer periphery of the main body region is integrally provided with a rib region.Type: GrantFiled: January 21, 2010Date of Patent: April 17, 2012Assignee: Suncall CorporationInventors: Yasuo Fujimoto, Kenji Mashimo
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Publication number: 20120087043Abstract: Each of side edges of a main body portion of a load beam part includes a proximal end region inclined at a first inclination angle so as to come closer to a suspension longitudinal center line as it goes from proximal to distal sides, and a distal end region inclined at a second inclination angle smaller than the first inclination angle so as to come closer to the center line as it goes from a proximal side connected via an inflection point to a distal end of the proximal end region to a distal side.Type: ApplicationFiled: June 6, 2011Publication date: April 12, 2012Applicant: Suncall CorporationInventor: Yasuo FUJIMOTO
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Patent number: 8085505Abstract: An elastic plate connected at both ends to a pair of supporting pieces of a supporting portion and connected at center to a member forming a load beam portion functions as a load bending portion. A balance mass member is mounted on a portion of the member forming the load beam portion positioned on a base-end side from the elastic plate. A narrowest portion of the supporting portion is positioned, with respect to the suspension lengthwise direction, between a position of a base-end of a concave portion defined the pair of supporting pieces and a position where phantom lines extending from inner side edges of arm areas of the supporting pieces intersect with a longitudinal center line of the suspension, thereby effectively reducing mass of tip-end side of the supporting portion without deteriorating rigidity of the supporting pieces.Type: GrantFiled: October 21, 2008Date of Patent: December 27, 2011Assignee: Suncall CorporationInventors: Satoru Takasugi, Yasuo Fujimoto