Patents Examined by Allen Cao
  • Patent number: 8208226
    Abstract: It is a primary object of the present invention to provide a suspension substrate having reduced strain. The present invention solves the problem by providing a suspension substrate comprising: a fundamental structure in which a metal substrate, a first insulation layer, and a wiring are laminated in this order; a wide wiring laminate structure provided with a wide wiring first insulation part of the first insulation layer, a first wide wiring formed on the wide wiring first insulation part, a second insulation part formed on the first wide wiring, and a second wide wiring formed on the second insulation part; and a narrow wiring-containing structure provided with a narrow wiring first insulation part of the first insulation layer and a first narrow wiring formed on the narrow wiring first insulation part, wherein the narrow wiring-containing structure is provided with a strain-limiting part formed to limit strain generated in relation to the wide wiring laminate structure.
    Type: Grant
    Filed: October 27, 2009
    Date of Patent: June 26, 2012
    Assignee: Dai Nippon Printing Co., Ltd.
    Inventor: Shigeki Kawano
  • Patent number: 8208227
    Abstract: A suspension board with circuit includes a metal supporting board, an insulating layer formed on the metal supporting board, and a conductive layer formed on the insulating layer. The insulating layer includes a first insulating layer and a second insulating layer. The conductive layer includes a first conductive pattern and a second conductive pattern. The first conductive pattern includes a first connecting portion formed on the first insulating layer and under the second insulating layer and a first terminal. The second conductive pattern includes a second connecting portion formed on the second insulating layer and a second terminal. The suspension board with circuit is formed with an opening, and a slider is provided such that an electronic element is inserted in the opening to be electrically connected to the first terminal and a magnetic head on the slider is electrically connected to the second terminal.
    Type: Grant
    Filed: October 11, 2011
    Date of Patent: June 26, 2012
    Assignee: Nitto Denko Corporation
    Inventor: Tetsuya Ohsawa
  • Patent number: 8208225
    Abstract: A suspension board with circuit includes a conductive pattern, a board main body portion on which a magnetic head is mounted, and an auxiliary portion capable of being folded back with respect to the board main body portion so as to face a back surface of the board main body portion. The conductive pattern includes a first conductive pattern including a first terminal electrically connected to an external circuit, and a second terminal electrically connected to the magnetic head, and a second conductive pattern including a third terminal electrically connected to the external circuit, and a fourth terminal electrically connected to an electronic element. Both of the first terminal and the second terminal are disposed on the board main body portion. The third terminal is disposed on the board main body portion or on the auxiliary portion, and the fourth terminal is disposed on the auxiliary portion.
    Type: Grant
    Filed: November 2, 2009
    Date of Patent: June 26, 2012
    Assignee: Nitto Denko Corporation
    Inventors: Tetsuya Ohsawa, Toshiki Naito
  • Patent number: 8208218
    Abstract: A buffer member and impact absorbing device is formed of a soft flexible part that deforms compressively, has cushion performance, and has a substantially rectangular parallelepiped shape, and a sheet-like substrate part that has flexibility, is made of resin material, and has a substantially rectangular shape. A slit is formed by substantially vertically slotting the flexible part from its one surface to a midway so as to leave a surplus material part, and the substrate part is inserted and mounted to the slit formed in the flexible part. A relatively weak impact force is absorbed by the surplus material part of the flexible part, and a strong impact force that has not been completely absorbed by the surplus material part is absorbed by interaction between the flexible part and the substrate part.
    Type: Grant
    Filed: September 6, 2007
    Date of Patent: June 26, 2012
    Assignee: Panasonic Corporation
    Inventor: Hitoshi Nakatani
  • Patent number: 8208224
    Abstract: Suspension assemblies for minimizing stress on slider solder joints in a disk drive are described. One such suspension assembly includes a flexure including a gimbal area having a leading end and a trailing end, a metal support layer including a flexure tongue, a flexure tip disposed at the trailing end and including first and second isolation arms extending from the flexure tongue, and a bond pad support including a support arm extending from the flexure tongue, and a load beam including an elongated flat surface having a protrusion extending therefrom and having a cut-out section, where the leading end of the flexure gimbal area is attached along the flat surface, where the flexure is configured to retain contact with the protrusion, and where the cut-out section is configured to receive a portion of the bond pad support when the flexure rotates about a long axis of the suspension assembly.
    Type: Grant
    Filed: August 29, 2011
    Date of Patent: June 26, 2012
    Assignee: Western Digital Technologies, Inc.
    Inventors: Kia Moh Teo, Yanning Liu, Wing C. Shum
  • Patent number: 8203804
    Abstract: According to one embodiment, a head gimbal assembly includes a magnetic head for perpendicular, a suspension supporting the magnetic head, and a heating module configured to locally heat a recording area of the recording medium. A head section of the magnetic head includes a magnetic core including a main pole and a return pole forming a magnetic circuit in conjunction with the main pole, a coil configured to excite magnetic flux in the magnetic circuit, and a thermal conductor having thermal conductivity higher than thermal conductivity of the recording medium and including a heat absorbing portion configured to remove heat from the recording medium, and a contact portion configured to contact airflow produced, as the recording medium rotates, at a position other than a facing surface of a slider opposed to the recording medium and radiate heat.
    Type: Grant
    Filed: June 30, 2011
    Date of Patent: June 19, 2012
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Tomoko Taguchi, Yuichi Yamada, Akihiko Takeo
  • Patent number: 8199428
    Abstract: A clamp for a disk rotation driver stably and surely supports a disk in the disk rotation driver. The clamp 7 for a disk rotation driver 1 having a central portion and a periphery being circumferentially provided with a contact portion 13, the central portion fastened to a hub 5 to be rotated, and the contact portion 13 pressed against a recordable disk 3 attached to the hub 5 to apply a pressing force Fv to the disk 3 in a rotation axis direction and fixedly support the magnetic disk 3 on the hub 5, the clamp 7 comprising: a wall portion 25 extending from the periphery and being oriented in the rotation axis direction to form the contact portion 13 so that a frictional force ?Fy produced between the contact portion 13 and the magnetic disk 3 and resisting a locomotion Fx that acts on the contact portion 13 and radially outwardly biases the contact portion 13 when the contact portion 13 is in contact with the magnetic disk 3 is equal to or larger than the locomotion Fx.
    Type: Grant
    Filed: March 24, 2008
    Date of Patent: June 12, 2012
    Assignee: NHK Spring Co., Ltd.
    Inventors: Toshimitsu Araki, Takashi Ogino, Atsushi Shitama
  • Patent number: 8194353
    Abstract: A suspension board with circuit includes a conductive pattern, a board main body portion, an auxiliary portion folded back with respect to the board main body portion, a slider disposed on a side of the suspension board with circuit which is closer to the board main body portion, and mounting thereon a magnetic head, and a light emitting element disposed on a side of the suspension board with circuit which is closer to the auxiliary portion. The conductive pattern includes a first conductive pattern including first and second terminals connected to an external circuit and the magnetic head, and second conductive pattern including third and fourth terminals connected to the external circuit and light emitting element. Both of the first and second terminal are disposed on the board main body portion. The third and fourth terminals are disposed on the board main body portion and on the auxiliary portion respectively.
    Type: Grant
    Filed: November 9, 2009
    Date of Patent: June 5, 2012
    Assignee: NITTO DENKO Corporation
    Inventors: Tetsuya Ohsawa, Toshiki Naito
  • Patent number: 8184405
    Abstract: A slider is formed by a three-step ion milling process with an ABS topography that provides aerodynamic stability at sub-nanometer flying heights. The ABS design significantly eliminates the accumulation of lubricant and removes whatever lubricant does accumulate by use of a shallow dam at the trailing edge. In addition, a junction between a down-track channel and a cross-track channel directs airflow towards a center pad in which a transducer is embedded so that the pressure at the pad is enhanced even under high altitude conditions. The slider ABS is divided into two portions by a transverse deep air channel, but the channel is bridged by the cross-track channel which crosses the deep air channel with sides of unequal height. This dual height bridge allows variations in skew angle to be compensated so that pressure variations across the disk tracks are significantly reduced.
    Type: Grant
    Filed: January 14, 2011
    Date of Patent: May 22, 2012
    Assignee: SAE Magnetics (HK) Ltd.
    Inventors: Guoqiang Zheng, Ellis Cha, Zhu Feng, Sindy Yeung
  • Patent number: 8184411
    Abstract: A MTJ for a spintronic device is disclosed and includes a thin composite seed layer made of at least Ta and a metal layer having fcc(111) or hcp(001) texture as in Ta/Ti/Cu to enhance perpendicular magnetic anisotropy (PMA) in an overlying laminated layer with a (CoFe/Ni)x, (Co/NiFe)x, (Co/NiCo)x, (CoFe/NiFe)x, or (CoFe/NiCo)x composition where x is from 5 to 30. In one embodiment, a CPP-TMR spin valve has one or both of a laminated free layer and laminated reference layer with the aforementioned compositions. The MTJ includes an interfacial layer made of CoFeB, CoFeB/CoFe, or CoFe/CoFeB between each laminated structure and the tunnel barrier. The laminated layers are deposited by a low power and high Ar pressure process to avoid damaging interfaces between adjoining layers. Annealing occurs at 220° C. to 400° C. A laminated layer with high PMA may also be included in one or more layers of a spin transfer oscillator.
    Type: Grant
    Filed: October 26, 2009
    Date of Patent: May 22, 2012
    Assignees: Headway Technologies, Inc., MagIC Technologies, Inc.
    Inventors: Kunliang Zhang, Min Li, Pokang Wang, Yuchen Zhou, Cheng T. Horng, Ru-Ying Tong
  • Patent number: 8179634
    Abstract: Methods and structures for the fabrication of a thin film, perpendicular recording write head are disclosed. The structure provides a pole tip separated from a rear pole by a non-magnetic separation layer located adjacent the flare point. The rear pole contains an imbedded non-magnetic layer. The separated pole tip and imbedded layer aid in the high data rate recording as well as the erasure performance of the write pole structure. The fabrication involves the deposition of two different oxide layers which have mutually high etch selectivities. This characteristic allows a write pole structure to be built wherein the track width is independent of the location of the flare point. The process also produces a structure wherein the placement of the throat height of the shield is self aligned to the flare point of the write pole.
    Type: Grant
    Filed: December 27, 2007
    Date of Patent: May 15, 2012
    Assignee: Hitachi Global Storage Technologies Netherlands B.V.
    Inventors: Wen-Chien David Hsiao, Ming Jiang, Changqing Shi
  • Patent number: 8179641
    Abstract: Embodiments in accordance with the present invention allow a resin member accommodating therein a trace, to have a small thickness. An HDD according to an embodiment of the present invention includes a resin accommodation member fixed to a side surface of arms. Part of a trace is accommodated in a slit formed in the accommodation member. Accommodating part of the trace in the slit helps suppress fluttering of the trace and improve head positioning accuracy. A corrugated surface structure is formed on each of surfaces of the arms and the accommodation member in abutment with each other. The corrugated surface structure is used to position the accommodation member in a pivot direction. The accommodation member, having the corrugated surface structure for positioning on the surface being fixed, can be made to have a thin wall.
    Type: Grant
    Filed: April 6, 2007
    Date of Patent: May 15, 2012
    Assignee: Hitachi Global Storage Technologies, Netherlands B.V.
    Inventors: Takahisa Okada, Kohji Takahashi, Takeshi Saito, Tomoki Hiramatsu
  • Patent number: 8181191
    Abstract: A media processing device does not execute a media transportation process if the height of media stacked in a media storage unit is at an over capacity level, and reliably prevents problems such as damage to the media transportation mechanism caused by collision with the stacked media. If in the media processing device the height of media stacked in a media storage unit 121, 122 is at a full stack level or over capacity level (step S33 returns yes or step S35 returns yes), an appropriate warning is output (step S34 or step S36) and collision accidents of the media transportation mechanism 131 can be prevented.
    Type: Grant
    Filed: September 18, 2008
    Date of Patent: May 15, 2012
    Assignee: Sieko Epson Corporation
    Inventor: Kazuya Toshima
  • Patent number: 8174797
    Abstract: A head suspension has a conductive base plate, a piezoelectric element, and a load beam. The piezoelectric element deforms in response to a voltage applied thereto, thereby moving the load beam relative to the base plate in a sway direction.
    Type: Grant
    Filed: March 3, 2011
    Date of Patent: May 8, 2012
    Assignee: NHK Spring Co., Ltd.
    Inventor: Osamu Iriuchijima
  • Patent number: 8171505
    Abstract: To provide a disc drive device which does not spend a lot of money on components and requires the less number of components than the conventional technology and has a function to correctly dispose an inserted disc by a slot-in method at a place where the disc can be driven according to the size of the disc. The disc drive device comprises an abutment pad which receives the inserted disc in a different posture depending on the size of the disc, a coupling member which rotationally transfers by a different distance at a different position according to the posture of the abutment pad when it rotationally transfers along with the bring-in operation of the disc, and a spring which applies a predetermined energizing force to the coupling member. Due to the coupled operation of these components, etc., the inserted disc can be correctly disposed at a predetermined place where the disc can be driven according to the size of the disc.
    Type: Grant
    Filed: May 27, 2008
    Date of Patent: May 1, 2012
    Assignee: Sharp Kabushiki Kaisha
    Inventor: Masanobu Katsuki
  • Patent number: 8169742
    Abstract: A magnetic recording medium is provided, which has recording layers having concavo-convex patterns formed on both sides of a substrate and can easily distinguish one face from the other face. A magnetic recording and reproducing apparatus having the magnetic recording medium is also provided. The magnetic recording medium includes a substrate, a first recording layer formed in a first concavo-convex pattern on a side of a first face, and a second recording layer formed in a second concavo-convex pattern on a side of a second face. The magnetic recording medium also includes a distinction element which can distinguish the first face from the second face. At least part of the distinction element is disposed in a non-recording area adjacent to at least one of an inner part and an outer part of a recording area in a radial direction.
    Type: Grant
    Filed: January 3, 2008
    Date of Patent: May 1, 2012
    Assignee: TDK Corporation
    Inventors: Daisuke Yoshitoku, Minoru Fujita, Narutoshi Fukuzawa
  • Patent number: 8169737
    Abstract: A tape library apparatus includes a recording/reproducing unit for accessing data in the tape cartridges, a first driver for producing a driving force, a conveyer for carrying the recording/reproducing unit in the direction of the alignment of the plurality of the tape cartridges, by the driving force produced by the first driver, an identification information reader mounted near the insertion slot and on a surfaces of the tape cartridges, the image identification information being on a surface of each of the tape cartridges which faces opposite to a surface which faces the conveyer, a second driver for moving the tape cartridge in the magazine at opposed position of the conveyer to the recording/reproducing unit, and a controller for controlling the first and second drivers, to move one of the tape cartridges stored in the magazine to a position of the recording/reproduction unit.
    Type: Grant
    Filed: March 17, 2011
    Date of Patent: May 1, 2012
    Assignee: Fujitsu Limited
    Inventor: Tsukasa Minemura
  • Patent number: 8169754
    Abstract: A disk drive head slider for a magnetic disk drive is provided. The head slider includes a tunnel magnetic resistance device for reading data on a magnetic disk and a dedicated noncorrosive smear detector for measuring resistance wherein the resistance corresponds to a level of smear associated with the head slider.
    Type: Grant
    Filed: December 31, 2007
    Date of Patent: May 1, 2012
    Assignee: Hitachi Global Storage Technologies, Netherlands, B.V.
    Inventors: David P. Druist, David J. Seagle, Jila Tabib
  • Patent number: 8164864
    Abstract: A method and system for providing a magnetic transducer are disclosed. The method and system include providing a magnetic element that includes a free layer, a pinned layer, and a nonmagnetic spacer layer between the free layer and the pinned layer. The nonmagnetic spacer layer is a tunneling barrier layer. The free layer is configured to be biased in a first direction. The pinned layer has a pinned layer magnetization configured to be pinned in a second direction that is at a first angle from perpendicular to the ABS. The first angle is nonzero and different from ninety degrees. The second direction and the first direction form a second angle that is different from ninety degrees.
    Type: Grant
    Filed: July 16, 2009
    Date of Patent: April 24, 2012
    Assignee: Western Digital (Fremont), LLC
    Inventors: Christian Kaiser, Laurence L. Chen, Qunwen Leng
  • Patent number: 8159784
    Abstract: The magnetic recording medium of the present invention has a pattern formed using a pattern-forming agent in a laminate of multiple layers including a base material and a magnetic recoding layer, wherein the pattern is recognized on the surface of the laminate opposite to the base material, and the pattern-forming agent is distributed through the thickness of the laminate, wherein a region between the center of the magnetic recording layer and a magnetic recording-reading side of the laminate has an area having a density gradient of the pattern-forming agent which gradually declines in the direction from the center of the magnetic recording layer to the magnetic recording-reading side.
    Type: Grant
    Filed: June 30, 2005
    Date of Patent: April 17, 2012
    Assignee: Dainippon Ink and Chemicals, Inc.
    Inventors: Yoshikazu Yamazaki, Daisuke Yano