Patents Examined by Franklin D. Altman
-
Patent number: 6643226Abstract: A mail slot data cartridge exchange system for a data storage system may comprise a drawer mounted to the data storage system so that the drawer can be moved between a retracted position and an extended position. A cartridge magazine for holding at least one data cartridge is sized to be removably received by the drawer so that at least a portion of the cartridge magazine is exposed when the drawer is in the extended position. A drawer stop index member is operatively associated with the drawer so that the movement of the drawer stop index member corresponds to movement of the drawer. A lock apparatus mounted to the data storage system is switchable between a locked state and an unlocked state. The lock apparatus engages the drawer stop index member when the lock apparatus is in the locked state and when the drawer is in a regulated extended position.Type: GrantFiled: October 27, 1998Date of Patent: November 4, 2003Assignee: Hewlett-Packard Development Company, L.P.Inventors: Nicholas D. Thayer, Robert W. Luffel, David P. Jones, Mark A. Smith
-
Patent number: 6633456Abstract: In order to provide a suspension, a head suspension assembly, and a disk drive apparatus that can contribute to an increase of record and playback reliability, holes 3c in ribs 3b of the head suspension assembly 3 are provided. This design decreases the displacement of a head slider 2 that is caused by Karman vortex streets occurring near the ribs 3b in company with the rotation of the magnetic disk 1.Type: GrantFiled: October 29, 1999Date of Patent: October 14, 2003Assignee: International Business Machines CorporationInventors: Hiroyasu Tsuchida, Singo Tsuda, Sachiyo Baba, Kiyoshi Satoh
-
Patent number: 6477011Abstract: The invention relates to a magnetic recording device comprising (a) a disk comprising a substrate, a metallic magnetic layer, a carbon layer and a lubricant layer; (b) a motor associated with a disk operable for rotating the disk; (c) a head supported on an air bearing slider for magnetically reading data to or magnetically writing data from the magnetic layer on the disk, the trailing surface of the slider coated with a multilayered film having low surface energy; and (d) an actuator connected to the slider for moving the head across the disk. The multilayered film on the trailing surface of the slider substantially reduces stiction of the slider.Type: GrantFiled: August 24, 1998Date of Patent: November 5, 2002Assignee: International Business Machines CorporationInventors: Richard Hsiao, Son Van Nguyen, Andrew Chiuyan Ting, John David Westwood
-
Patent number: 6462906Abstract: A magnetic tape cartridge has a cartridge casing, a single reel around which a magnetic tape is wound and which is contained in the cartridge casing for rotation and a leader pin fixed to the leading end portion of the magnetic tape. The leader pin is provided at its opposite ends with engagement portions which are brought into engagement with a tape drawing mechanism of a recording and reproducing system when the magnetic tape cartridge is loaded in the recording and reproducing system. The end face of each engagement portion is provided with a recess at which the tape drawing mechanism chucks the leader pin.Type: GrantFiled: May 11, 2001Date of Patent: October 8, 2002Inventors: Kiyoo Morita, Hideaki Shiga, Daisuke Takahashi, Yusuke Ishihara, Seiji Tsuyuki
-
Patent number: 6456586Abstract: A magneto-optical recording medium comprising a reproducing magnetic layer having a magnetic layer which is in an in-plane magnetization state at room temperature but shifts to a perpendicular magnetization state as temperature rises, a dielectric layer and a recording magnetic layer having a magnetic layer which exhibits a perpendicular magnetization, sequentially from a photo-receptive side, the recording medium being further comprising a metal layer between the reproducing magnetic layer and the dielectric layer.Type: GrantFiled: September 9, 1999Date of Patent: September 24, 2002Assignee: Sharp Kabushiki KaishaInventors: Ippei Suzuki, Naoyasu Iketani, Yoshiteru Murakami, Akira Takahashi
-
Patent number: 6417991Abstract: A recording disk drive comprises a recording disk. A head slider is supported at the tip end of a resilient suspension so as to face the recording disk. An elastic member is located behind the head slider at a position spaced from the head slider. When an impact is applied to the recording disk drive, the resilient suspension may warp to move the tip end away from the recording disk. The elastic member receives the tip end of the suspension. It is possible to restrain the warp of the suspension, namely, the movement of the head slider. Less resilience can be stored in the suspension. Accordingly, even when the stored resilience causes the tip end of the suspension to collide against the surface of the recording disk, a smaller impact of the head slider against the recording disk may allow less damage to the recording disk or the head slider. Shock resistance to the recording disk drive can be improved.Type: GrantFiled: January 6, 2000Date of Patent: July 9, 2002Assignee: Fujitsu LimitedInventor: Ryuichi Onda
-
Patent number: 6385145Abstract: The present invention is an automated storage library suitable for rack-mount and desktop installations. Storage media cartridges and a robotic mechanism that transport the storage media cartridges internal to the library are mounted on a moveable drawer. With the drawer at an internal position, the robotic mechanism transports the storage media cartridges between cartridge slots mounted on the drawer and read-write media drives and other cartridge handling devices not mounted on the drawer. The drawer is capable of moving through an opening in the storage library housing to an external position where the storage media cartridges and the robotic mechanism are readily accessible. At the external position, the storage media cartridges can be inserted and removed from the cartridge slots. The drawer may be detachable from the housing to allow unobstructed access to the components housed in the interior of the storage library.Type: GrantFiled: September 21, 1999Date of Patent: May 7, 2002Assignee: Storage Technology CorporationInventor: Timothy C. Ostwald
-
Patent number: 6381092Abstract: A disk drive having spacers to compensate for disk warpage is described. The spacers are positioned on opposite sides of a disk with each spacer contacting the disk a different radial position relative to the center of the disk. The offset contact areas result in displaced moments on the disk, with respect to each other, when the spacers are clamped to the disk. The moments generated by the clamped spacers provide a torque on a warped disk to improve its flatness.Type: GrantFiled: January 10, 2000Date of Patent: April 30, 2002Assignee: Komag, Inc.Inventor: Shoji Suzuki
-
Patent number: 6366431Abstract: The object of the present invention is to provide a structure of a head supporting arm for preventing a read/write head from being damaged during a heating process for bonding a slider to a flexure and a method for fabricating the head supporting arm with preventing the read/write head from being damaged during the heating process. A head supporting arm of the present invention comprises: a load beam, a flexure including a portion coupled to said load beam and a bonding portion; and a slider bonded on said bonding portion by an adhesive; wherein said bonding portion of said flexure includes an edge placed on a surface of said slider; and wherein an exposing aperture, which exposes both a portion of a surface region, including said one edge, of said bonding portion and a portion of said surface of said slider, is formed on said load beam.Type: GrantFiled: November 1, 1999Date of Patent: April 2, 2002Assignee: International Business Machines CorporationInventors: Tatsumi Tsuchiya, Tatsushi Yoshida, Hiroyoshi Yokome, Naoki Fujii
-
Patent number: 6359757Abstract: An electrostatic actuator includes liquid in the gap between elements of an electrostatic actuator. Preferred liquids have a high dielectric constant, which amplifies the electrostatic force induced between the elements by a voltage across the elements, thereby increasing the strength of the actuator and enabling the actuator to be used in a variety of applications. In addition, the liquid avoids contact between the elements that might otherwise occur during use. This helps prevent arcing between the elements and accompanying wear, as well as catastrophic failure such as the plates breaking as they collide. Preferred liquids are also substantially nonelectrically conductive, chemically stable, have a high breakdown voltage, low viscosity, and low vapor pressure to avoid evaporation. An exemplary liquid is diffusion pump oil.Type: GrantFiled: June 2, 1999Date of Patent: March 19, 2002Assignee: Maxtor CorporationInventor: Michael Mallary
-
Patent number: 6356525Abstract: A skew adjusting apparatus for an optical disc player makes a positional adjustment of a guide member of a carriage for a pickup relative to a chassis. A movable body is disposed on the chassis. The movable body has at one end thereof a supporting member for the guide member and the other end thereof a connection member to the chassis. An adjusting device for making a positional adjustment of the guide member through the supporting member in the thickness direction of the chassis is disposed between the chassis and the movable body so as to be displaced from the guide member and the supporting member on a reference plane of the chassis.Type: GrantFiled: November 22, 1999Date of Patent: March 12, 2002Assignee: Pioneer CorporationInventors: Yuji Ikedo, Yusuke Akama, Akira Bessho, Katsuhiko Tanimoto
-
Patent number: 6349021Abstract: A thin film magnetic head is able to control occurrence of Barkhausen noises attributable to configuration magnetic anisotropy of an upper shield layer. An inductive head is provided with a magnetic material layer having a space for forming a coil layer thereon. A very narrow gap is provided between a front separate layer that opposes a magnetic recording medium and a rear separate layer that opposes the front separate layer. The front separate layer serves also as an upper shield layer of an MR head and a lower core layer of the inductive head.Type: GrantFiled: January 11, 2000Date of Patent: February 19, 2002Assignee: Alps Electric Co., Ltd.Inventor: Kenji Honda
-
Patent number: 6349016Abstract: A magnetic tape cartridge has a cartridge casing, a single reel around which a magnetic tape is wound and which is contained in the cartridge casing for rotation and a leader pin fixed to the leading end portion of the magnetic tape. The leader pin is provided at its opposite ends with engagement portions which are brought into engagement with a tape drawing mechanism of a recording and reproducing system when the magnetic tape cartridge is loaded in the recording and reproducing system. The end face of each engagement portion is provided with a recess at which the tape drawing mechanism chucks the leader pin.Type: GrantFiled: December 21, 1998Date of Patent: February 19, 2002Assignee: Fuji Photo Film Co., Ltd.Inventors: Kiyoo Morita, Hideaki Shiga, Daisuke Takahashi, Yusuke Ishihara, Seiji Tsuyuki
-
Patent number: 6341119Abstract: A disk storage magazine in which the number of stored disks per unit volume can be increased. A pair of disk holding members (4), which are bent into a bellows shape by the number of stored disks, are arranged substantially in parallel with a direction in which disks (1) come off on both sides of a magazine case (2). When the disk storage magazine is opened, the disk (1) is held by valley portion of the folded portions of the disk holding members (4), and held between tapered faces on opposite sides of the valley portion. When the disk storage magazine is closed, the disk holding member (4) is bent until the tapered faces holding the edge of surface of the disk (1) become substantially in parallel with the disk surface, and fixes and holds the disks (1) in a state of touching and pressing the disks (1). Thereby, clearances in the stacking direction between the disk (1) and the disk holding member (4) can be eliminated.Type: GrantFiled: September 8, 1999Date of Patent: January 22, 2002Assignee: Matsushita Electric Industrial Co., Ltd.Inventors: Kozo Ezawa, Teruyuki Takizawa, Shigeto Ueno
-
Patent number: 6339575Abstract: A loading mechanism for a disk device is provided wherein a single motor is commonly used to perform the functions of loading a disk, such as a CD-ROM or a DVD-ROM, within the disk device and feeding the disk to a data reading/writing device. The loading mechanism uses a rack and pinion arrangement to move a disk loading tray out of and into a base of the disk device to load and subsequently feed the disk to the data reading/writing device.Type: GrantFiled: April 27, 1999Date of Patent: January 15, 2002Assignee: Samsung Electronics Co., Ltd.Inventor: Toshiaki Suzuki
-
Patent number: 6324035Abstract: A magnetic recording and reading device having a magnetic head assembly in which a magnetic head is mounted on a suspension, an R/W-IC having a line width of not more than 0.35 &mgr;m and a magnetic disk medium having a magnetic recording layer formed on a substrate. The magnetic head assembly has an inductance of not more than 65 nH and has a magnetic path with a length of not more than 35 &mgr;m, wherein a part of the magnetic path is provided with a magnetic film or a multi-layer film consisting of a magnetic film and a non magnetic layer. The magnetic film and the multi-layer film have a resistivity of more than 50 &mgr;&OHgr;cm.Type: GrantFiled: April 18, 2001Date of Patent: November 27, 2001Assignee: Hitachi, Ltd.Inventor: Yoshihiro Shiroishi
-
Patent number: 6324151Abstract: In a method of fixing a part on a main base, the method comprises the step of mechanically fixing the part on the main base by using solder. The main base preferably may be made of resin while the part preferably may be made of one where the solder enables to adhere to the part. The resin of the main base comprises, for example, a liquid-crystal polymer. The main base may comprise an optical base for use in an optical pickup. The part may comprise a leaf spring or a photodiode (PD) base to which a photodiode is adhered.Type: GrantFiled: November 23, 1999Date of Patent: November 27, 2001Assignee: Mitsumi Electric Co., Ltd.Inventor: Ken-ichi Hori
-
Patent number: 6320835Abstract: A disk tray is provided slideably between a disk ejecting position in which a disk is placed on the disk tray and a disk reproduction position in which information stored the disk is read. A housing movably supports the disk tray. Disk reproducing components are arranged in the disk tray, and include a pickup and a disk motor which drives and rotates the disk. A flexible cable connects the disk reproducing components arranged in the disk tray with a substrate provided in the housing, the flexible cable being arranged in a manner in which the flexible cable is curved. A reinforcement film is formed on a predetermined portion of a movable portion of the flexible cable, the movable portion moving with respect to the housing when the disk tray moves with respect to the housing.Type: GrantFiled: November 3, 1998Date of Patent: November 20, 2001Assignee: TEAC CorporationInventor: Yo Kamei
-
Patent number: 6317402Abstract: A disk tray is mounted in an optic disk drive for supporting an optic disk. The disk tray forms a circular recess for receiving the optic disk therein. Openings are defined in the disk tray along a circumference of the circular recess for forming air passages communicating upper and lower sides of the disk tray whereby when the optic disk is rotated at a high speed during the operation of the optic disk drive, pressure difference induced between the upper and lower sides of the disk tray is reduced by air flowing through the air passages.Type: GrantFiled: November 23, 1999Date of Patent: November 13, 2001Assignee: Behavior Tech Computer CorporationInventors: Chieny Huang, George Chen
-
Patent number: 6317406Abstract: A device for gripping and holding a compact disc comprising a housing, a plurality of grippers that are arranged in said housing, each of said grippers being provided with a magnet, said gripper being guided in recesses in the housing which allow a movement of each gripper transverse to a vertical axis of said housing and cooperating with an electromagnet. The magnetic field axis of which coincides with the vertical axis (H) of the housing (3) and which moves the grippers (5, . . . ) back and forward between two limit stops (a, b) depending on the polarity of the electromagnet (16). The housing (3) is encompassed with play by a holder (10), wherein elements (13, . . . ) of an elastic material are provided between the holder (10) and the housing (3), namely in the part (9) of the housing (3) that is encompassed by the holder (10). The grippers (5, . . . ) respectively contain two limbs (5a, 5b, . . . ), one of which (5a, . . . ) extends downward perpendicular to the first limb (5b, . . .Type: GrantFiled: April 2, 1999Date of Patent: November 13, 2001Assignee: Unaxis Deutschland Holding AGInventors: Michael König, Johannes Beul, Stefan Bangert