Patents Examined by John H. Wolff
  • Patent number: 5969913
    Abstract: A data storage tape cartridge having a misinsertion notch. The data storage tape cartridge includes a housing, a tape reel and a storage tape. The housing includes a base and a cover, each defining a front, a back, a first side and a second side. The misinsertion notch is defined in the base, extending from the front of the base and along the first side of the base. The misinsertion notch has a length less than approximately one-half a length of the first side of the base for facilitating proper insertion into a receiving frame.
    Type: Grant
    Filed: June 11, 1998
    Date of Patent: October 19, 1999
    Assignees: Dimation Corp, Storage Technology Corp.
    Inventors: William J. Vanderheyden, G. Phillip Rambosek, David T. Hoge, Christian A. Todd
  • Patent number: 5966266
    Abstract: A cartridge transferring robot which is capable of providing multiple functions to a hand mechanism to allow the direct insertion/extraction of a cartridge between a deck and the hand mechanism. The cartridge transferring robot according to the present invention has a hand mechanism comprising a pair of upper and lower hand members attached to a hand base to be slidable vertically, a spring for biasing the hand members in a direction of closing directions of gripping the cartridge, a pair of upper and lower cam followers attached to the hand members, a cam disposed between the cam followers for adjusting the separation between the cam followers to cause the hand members to take opening and closing actions against the biasing force of the spring, and a motor for rotationally driving the cam. This invention is applicable to a library apparatus storing a large number of cartridges such as magnetic tape cartridges and optical disk cartridges.
    Type: Grant
    Filed: February 10, 1998
    Date of Patent: October 12, 1999
    Assignee: Fujitsu Limited
    Inventors: Chikatsu Kato, Hiroshi Shibuya, Nobuhiko Motoyama, Keiichi Saito, Daisuke Hori
  • Patent number: 5966274
    Abstract: A magneto-resistance effect magnetic head having a magneto-resistance device arranged for causing the reproducing current to flow perpendicularly to a recording medium, wherein recesses are formed in a recording medium facing surface of the magnetic head on both ends thereof in the track width direction of the magneto-resistance device.
    Type: Grant
    Filed: November 19, 1997
    Date of Patent: October 12, 1999
    Assignee: Sony Corporation
    Inventor: Toru Suzuki
  • Patent number: 5966271
    Abstract: A high energy magnet and backiron assembly of an actuator assembly of a storage disc. Multiple magnet segments are bonded together to form a high energy composite magnet. The high energy composite magnet is bonded to a backiron to construct a higher capacity actuator motor. The composite magnet is bonded to a backiron via a bonding assembly which includes magnet and backiron nests. Retainers are included to secure a composite magnet in the magnet nest and a backiron in the backiron nests. Retainers provide sufficient pressure to counteract the attraction force between the magnet supported in the magnet nest and the backiron in the backiron nest. The magnet and backiron nests are coupled to a base of the bonding assembly and operate between a non-operational position and a bonding position. In the non-operatiornal position, the magnet nest and backiron nest are supported a spaced distance apart.
    Type: Grant
    Filed: April 30, 1997
    Date of Patent: October 12, 1999
    Assignee: Seagate Technology, Inc.
    Inventor: Terry R. Fahley
  • Patent number: 5966269
    Abstract: A head suspension for supporting a read/write head of a rotary data storage device combines an actuator arm and load beam in a longitudinally compact construction. The construction includes overlapping laminae with one laminae extending over a hole provided in the other laminae, resulting in a monocoque construction of the head suspension that minimizes rotational inertia while maintaining desirable levels of shock, resonance and deflection performance of the head suspension.
    Type: Grant
    Filed: August 20, 1997
    Date of Patent: October 12, 1999
    Assignee: Hutchinson Technology, Inc.
    Inventors: Stevenson J. Marek, Mark T. Girard
  • Patent number: 5966277
    Abstract: A magnetic head comprising a lower magnetic pole formed on a wafer, a nonmagnetic write gap layer formed on the lower magnetic pole, an upper magnetic pole formed on the nonmagnetic write gap layer and provided with a pole tip possessing a thin leading end, two depressed parts formed in the lateral directions from directly below the lateral sides of the pole tip and opposed to each other across areas equal in width with the pole tip, a protective layer of a nonmagnetic insulating material adapted to fill the depressed parts and, at the same time, cover the upper magnetic pole and the lower magnetic pole, and a coil nipped between the opposed parts of a nonmagnetic insulating layer interposed between the upper magnetic pole and the lower magnetic pole.
    Type: Grant
    Filed: December 29, 1997
    Date of Patent: October 12, 1999
    Assignee: Fujitsu Limited
    Inventors: Takao Koshikawa, Atsuhiko Nagai
  • Patent number: 5963534
    Abstract: A driving device in which when a cartridge is inserted with a correct orientation, a retainer protrusion of a drawing-in member engages a retainer recess of the cartridge, so that a sliding shaft of the drawing-in member slides along a guide surface to draw in the cartridge. When the cartridge is inserted with a reversed orientation, the drawing-in member is pushed sideways, so that the sliding shaft slides along a relief guide portion at the exterior side of the guide plate, causing the drawing-in member to be driven in the X1 direction. Since the drawing-in member is driven along the relief guide portion, locking of the mechanism does not occur. Accordingly, it is possible to prevent locking of a mechanism, which occurs when the cartridge is inserted with a wrong orientation, and the drawing-in member, which is not retained by the cartridge, is driven in the drawing-in direction, in a disk device in which a drawing-in member is used to draw in a cartridge of, for example, a mini-disk.
    Type: Grant
    Filed: September 23, 1997
    Date of Patent: October 5, 1999
    Assignee: Alps Electric Co., Ltd.
    Inventors: Masanobu Tanaka, Tatsumaro Yamashita
  • Patent number: 5963383
    Abstract: A connection mechanism for connecting a pair of head suspension assemblies to a disc drive actuator arm in which the connection mechanism includes connection portions associated with respective load beams with such connection portions having cooperating, mating bosses extending into a mounting opening in the actuator arm and into interconnecting overlapping engagement with one another to result in an interference fit connection.
    Type: Grant
    Filed: August 30, 1995
    Date of Patent: October 5, 1999
    Assignee: Hutchinson Technology Incorporated
    Inventor: Ryan A. Jurgenson
  • Patent number: 5959813
    Abstract: The present invention provides a combination read/write thin film magnetic head wherein the width of a gap layer is the same as the track width Tw, and a shielding magnetic layer of a soft magnetic material is formed on both sides of the gap layer so that blots of a record magnetic field out of the track width Tw can be absorbed by the shielding magnetic layer, and write fringing can be prevented. Particularly, when the saturation magnetic flux density and thickness of the shielding magnetic layer are appropriately adjusted, it is possible to suppress write fringing, and at the same time maintain reproduced output at a high level.
    Type: Grant
    Filed: November 17, 1997
    Date of Patent: September 28, 1999
    Assignee: Alps Electric Co., Ltd.
    Inventors: Toshinori Watanabe, Kiyoshi Sato
  • Patent number: 5959804
    Abstract: A small and thin storage device that can be substituted for IC memory card is disclosed. When the recording medium cartridge is inserted into the frame of the storage device, a slide member in a hub moves parallel to the frame and retracts a shaft under restriction of a restriction member provided in the recording medium cartridge so that the hub and the shaft engage. When the recording medium cartridge is ejected from the frame, the slide member moves parallel to the frame and the shaft under restriction of the restriction member so as to release the engagement of the shaft and the hub.
    Type: Grant
    Filed: January 31, 1997
    Date of Patent: September 28, 1999
    Assignee: Mitsubishi Denki Kabushiki Kaisha
    Inventors: Akira Hashimoto, Yasutaka Mizutani, Kazunobu Hamatsu, Hirohiko Sugiura, Takamitsu Sugahara, Masao Sato, Kenji Shoji, Junji Kawada
  • Patent number: 5959801
    Abstract: An arrangement for reducing the stiction bond at power-up time between an slider parked on a disk or other magnetic recording medium. A thermally expansive medium such as alumina is included in the slider body thermally adjacent to the write element. At power-up time or when a failure of the disk, etc. to rotate is detected during startup, a current is applied to the write element. The volume expansion resulting from the heat causes a change in the shape and/or location of the slider surface in contact with the disk and thereby breaks or reduces the slider/disk stiction bond.
    Type: Grant
    Filed: October 22, 1997
    Date of Patent: September 28, 1999
    Assignee: International Business Machines Corporation
    Inventors: Donald Ray Gillis, Mike Suk, Bond-Yen Ting
  • Patent number: 5959808
    Abstract: A rotary microactuator includes a plurality of stationary electrodes formed on a substrate, an electrically conducting bottom layer formed on the substrate that is electrically isolated from the stationary electrodes, a plurality of movable electrode, and an electrically conducting top layer attached to the movable electrodes. The top layer is electrically connected to the bottom layer, the movable electrodes, and to a signal common that is preferably a ground potential. The top layer prevents vibration modes of the microactuator caused by vibrations of individual electrodes of the plurality of movable electrodes. The top layer, the bottom layer and the movable electrodes surround the stationary electrodes and contain an electric field generated between the stationary electrodes and the movable electrodes. An edge structure is formed on the substrate surrounding the plurality of stationary electrodes, and is electrically connected to the top layer, the bottom layer and the plurality of movable electrodes.
    Type: Grant
    Filed: December 30, 1997
    Date of Patent: September 28, 1999
    Assignee: International Business Machines Corporation
    Inventors: Long-Sheng Fan, Toshiki Hirano
  • Patent number: 5956214
    Abstract: A magnetic head drive mechanism in a photo-electro-magnetic disk drive is so designed that a magnetic head is coupled to the end portion of a swingable arm, and, as a photo-electro-magnetic disk is loaded or unloaded, the arm is swung, to move the magnetic head towards or away from the surface of the photo-electro-magnetic disk. In the magnetic head drive mechanism, pins are provided on both sides of the magnetic head, respectively, and a first engaging groove which is engaged with the pin and a second engaging groove which is engaged with the pin are provided on both sides of the opening of a cartridge head, respectively, whereby, at the unloading time both sides of the magnetic head are locked; that is, the vibration of the magnetic head is prevented during the transportation.
    Type: Grant
    Filed: December 29, 1997
    Date of Patent: September 21, 1999
    Assignee: Asahi Kogaku Kogyo Kabushiki Kaisha
    Inventors: Shimpei Shinozaki, Suguru Takishima
  • Patent number: 5956207
    Abstract: A small and thin storage device that can be substituted for IC memory card is disclosed. When the recording medium cartridge is inserted into the frame of the storage device, a slide member in a hub moves parallel to the frame and retracts a shaft under restriction of a restriction member provided in the recording medium cartridge so that the hub and the shaft engage. When the recording medium cartridge is ejected from the frame, the slide member moves parallel to the frame and the shaft under restriction of the restriction member so as to release the engagement of the shaft and the hub.
    Type: Grant
    Filed: October 15, 1998
    Date of Patent: September 21, 1999
    Assignee: Mitsubishi Denki Kabushiki Kaisha
    Inventors: Akira Hashimoto, Yasutaka Mizutani, Kazunobu Hamatsu, Hirohiko Sugiura, Takamitsu Sugahara, Masao Sato, Kenji Shoji, Junji Kawada
  • Patent number: 5956212
    Abstract: A trace suspension assembly for supporting a smaller head slider from an actuator arm in a disk drive includes a flexure formed in three layers, a stainless steel layer for mechanical strength, a polyimide layer for electrical isolation and a ductile copper layer for electrical transmission. The copper layer is etched to form a plurality of U-shaped and contiguous circuit traces beginning at the distal end of the flexure and running symmetrical along each side of the flexure to its proximal end. Indentation sites along the copper traces adjusts for pitch static attitude and/or roll static attitude errors.
    Type: Grant
    Filed: December 29, 1997
    Date of Patent: September 21, 1999
    Assignee: Headway Technologies, Inc.
    Inventor: Li-Yan Zhu
  • Patent number: 5956205
    Abstract: A disk holding mechanism for use in a disk apparatus includes a disk holder unit (60) for holding a disk (40) inserted into the disk apparatus. The disk holder unit includes a leaf spring (63) which serves as an urging member for urging a substantial center of the disk downwardly from an upper surface of the disk with the disk held in the disk holder unit. The urging member prevents the disk from vibrating within the disk holder unit and restricts vertical movement of the disk itself even if the disk apparatus is subjected to external shake or shock. Thus, it is possible to constantly maintain stable head touch of a magnetic head to a magnetic disk medium (41) of the disk.
    Type: Grant
    Filed: November 18, 1997
    Date of Patent: September 21, 1999
    Assignee: Mitsumi Electric Co., Ltd.
    Inventors: Makoto Konno, Hisashi Shibata, Masaki Kato
  • Patent number: 5956217
    Abstract: A reference disk, used to determine the glide height of a transducer head above the surface of a magnetic recording medium, is accurately formed by employing a laser light beam to produce protrusions on the reference disk. The protrusions can be formed in a variety of effective patterns to obtain a stable electrical signal. Embodiments include circumferential rows of uniformly or randomly spaced protrusions.
    Type: Grant
    Filed: August 28, 1997
    Date of Patent: September 21, 1999
    Assignee: Seagate Technology, Inc.
    Inventors: Jialuo Jack Xuan, Chung Yuang Shih, Thanh Nguyen
  • Patent number: 5953183
    Abstract: A magnetic disk drive with a head stack assembly having a pass-through flex circuit cable is disclosed. The pass-through flex circuit cable is mounted to a side of the head stack assembly to extend straight forward in an initial unfolded position during handling and assembly and to then be folded over into a final position in a substantially opposite direction and with a desired flex cable trajectory. The head stack assembly includes a post, preferably of rectangular profile, that is integrally formed and spaced away from the actuator body. An outer surface of the post defines the flex cable trajectory. The flex circuit cable, located in the space between the actuator body and the post, extends past the post in the initial position and wraps around the post in the final folded over position. The flex circuit cable is secured to the post in the final folded over position, preferably with a flex clip that removably mounts to the post.
    Type: Grant
    Filed: November 17, 1997
    Date of Patent: September 14, 1999
    Assignee: Western Digital Corporation
    Inventors: Walter Wayne Butler, Payman Hassibi, Mark A. Hathaway, Tami Ogle, Sudha Narayanan
  • Patent number: 5953186
    Abstract: The object of this invention is to make it possible for a light transmitting member to be easily assembled onto a cover member molded from an opaque synthetic resin, and to prevent the constitutive elements from falling even when exposed to a shock. This object is attained by providing a recording medium cartridge device including an optical detection section which is produced after a light transmitting member has been attached to a window which is formed on the front panel of a cover member, or an element, in combination with a base plate molded from an opaque synthetic resin, to form the cartridge body accommodating a recording medium.
    Type: Grant
    Filed: December 30, 1997
    Date of Patent: September 14, 1999
    Assignee: Sony Corporation
    Inventor: Masanori Sato
  • Patent number: 5949617
    Abstract: A rotary actuated arm assembly for positioning a tranducer over a data track of a rotating magnetic disk includes an extended load beam having an etched cavity along its top surface and shaped to function as a dynamic absorbing member for absorbing undesirable vibrations and resonances occurring in high speed mechanisms such as disk drives.
    Type: Grant
    Filed: December 29, 1997
    Date of Patent: September 7, 1999
    Assignee: Headway Technologies, Inc.
    Inventor: Li-Yan Zhu