Cr-base Component Patents (Class 428/666)
  • Patent number: 5953202
    Abstract: Materials from which metal film capacitors with plastic or other dielectric films are formed include a plurality of regions or segments defining plates of a capacitor, the regions electrically interconnected by fuse regions which separate a region containing a short circuit fault from the capacitor. The plurality of regions or segments are circular. The fuse regions may be circular or may alternatively be high resistivity regions filling spaces between the plurality of regions or segments. A capacitor having a higher energy storage density and safer construction is wound from these materials using conventional techniques.
    Type: Grant
    Filed: February 6, 1997
    Date of Patent: September 14, 1999
    Assignee: Advanced Deposition Technologies, Inc.
    Inventors: Glenn J. Walters, Gordon E. Walters
  • Patent number: 5945226
    Abstract: A chromium alloy plating film is covered on the surface of sliding members and corrosion resistant members. The chromium alloy plating film is a Cr--Mo--I type alloy plating film containing iodine in 0.1 to 1.4 percent by weight and molybdenum in 0.4 to 3.8 percent by weight.
    Type: Grant
    Filed: December 5, 1997
    Date of Patent: August 31, 1999
    Assignee: Teikoku Piston Ring Co., Ltd.
    Inventors: Akira Harayama, Hachiro Tanaka
  • Patent number: 5922430
    Abstract: A compact disk protector for an optical data storage disk includes a thin, transparent sheet having an inside diameter being larger than an inner hole of the disk and the sheet extending within and being bounded by a main region for placement against a first side of the disk, and approximately 24 circumferentially spaced support portions extending radially outwardly from the main region to a distance being greater than a thickness of the disk beyond the disk outside diameter. Each support portion has a bridge width being not greater than 2 percent of the disk outside diameter within a bridge region that is concentric with the inside diameter and extends from the disk outside diameter radially outwardly a distance corresponding to the disk thickness.
    Type: Grant
    Filed: April 2, 1998
    Date of Patent: July 13, 1999
    Inventor: Robert L. Biddlecome
  • Patent number: 5900316
    Abstract: A flexible conductive sheet includes a polymeric film coated with conductive metals. The flexible conductive sheet may be used in a shorting pad probe tip for a substrate tester by loosely wrapping the flexible conductive sheet around a compliant mandrel. The flexible conductive sheet may also be used for shielding an integrated circuit from radio frequency interference. The polymer film may be polyimide.
    Type: Grant
    Filed: December 6, 1996
    Date of Patent: May 4, 1999
    Assignee: International Business Machines Corporation
    Inventor: Yuet-Ying Yu
  • Patent number: 5900325
    Abstract: A polyester resin film laminated metal sheet having a metal sheet and a polyester resin film on at least one surface. The polyester resin film is 41 to 58 weight percent polybutyelene terephthalate and 42 to 59 weight percent polyethylene terephthalate. This composition provides the polyester resin film laminated metal sheet with an improved resistance to milky discoloration during retort treatment.
    Type: Grant
    Filed: July 28, 1997
    Date of Patent: May 4, 1999
    Assignee: Toyo Kohan Co., Ltd.
    Inventors: Takaaki Okamura, Atsuo Tanaka, Tsuneo Inui, Akio Miyachi
  • Patent number: 5891585
    Abstract: An Nb.sub.3 Al multi-filamentary superconducting wire capable of realizing both stabilization of a superconducting state and increase in capacity is provided. The Nb.sub.3 Al multi-filamentary superconducting wire includes a core formed of copper or copper alloy and located at the center of the wire; a multi-filamentary superconductor layer located around the core and having filaments containing Nb and Al as constituent elements embedded in a matrix formed of copper or copper alloy; and a high resistance layer located around the multi-filamentary superconductor layer, and is characterized in that a sectional area of the core is at least 15% of the total sectional area of the core and the matrix and that the core and the matrix are formed of copper or copper alloy of at least 99.9% purity.
    Type: Grant
    Filed: November 1, 1996
    Date of Patent: April 6, 1999
    Assignees: Sumitomo Elkectric Industries, Ltd., Japan Atomic Energy Research Institute
    Inventors: Naoki Ayai, Yuichi Yamada, Akira Mikumo, Kenichi Takahashi, Norikiyo Koizumi, Toshinari Ando, Makoto Sugimoto, Hiroshi Tsuji
  • Patent number: 5888606
    Abstract: The present invention disposes an easily releasing layer on a surface intended for dicing tape sticking of a dicing ring frame to thereby enable preventing the transfer of an adhesive substance to the ring frame for use in semiconductor wafer working, reducing the frequency of cleaning of the ring frame to the requisite minimum and prolonging the life of the ring frame.
    Type: Grant
    Filed: June 12, 1997
    Date of Patent: March 30, 1999
    Assignee: Lintec Corporation
    Inventors: Hideo Senoo, Takasi Sugino
  • Patent number: 5871849
    Abstract: A wood substitute turning blank and method of making the same is described. The turning blank includes a body having an outer shell of relatively low tensile strength material positioned about a rotational axis of the body. An inner core of relatively high tensile strength material is positioned along the rotational axis of the body. The high tensile strength of the inner core allows this turning blank to be turned at high speed on a lathe or the like. The high tensile strength of the core enhances the overall tensile strength of the finished product.
    Type: Grant
    Filed: April 23, 1997
    Date of Patent: February 16, 1999
    Inventor: Guy Joseph Lepine
  • Patent number: 5863655
    Abstract: The closure unit consists of an outlet part (10) and a closure part (20) which is joined to the outlet part even in the open condition, wherein both parts are sealed to each other by a pair of sealing faces in the closed condition of the closure unit. The closure unit has a region made of outlet material (A) and a region made of closure material (B), which two regions are joined together by a flow seam. The flow seam extends in such a way through the closure unit that at least parts of the sealing face on the side of the outlet are made of outlet material and that at least parts of the sealing face on the side of the closure are made of closure material. The closure unit is manufactured by way of a simultaneous casting method. The pairing of materials and the casting parameters of the two simultaneous casting processes are such that the two materials meet at the position provided for the flow seam and form a flow seam (31).
    Type: Grant
    Filed: June 15, 1995
    Date of Patent: January 26, 1999
    Assignee: Tetra Laval Holdings & Finance S. A.
    Inventor: Elmar Mock
  • Patent number: 5851643
    Abstract: A magnetic recording media with a magnetic film made from at least two layers stacked via a non-magnetic intermediate layer, wherein the magnetic film is formed on a structure control underlayer situated on a non-magnetic substrate. A magnetic recording system is also disclosed which includes this magnetic recording media and a magnetic recording head for recording on and reading back from the magnetic recording media. The system further includes a disk drive system, which generates relative motion between the magnetic recording media and the magnetic recording head, and an actuator which determines an appropriate location, on the magnetic recording media, over which the head should be located.
    Type: Grant
    Filed: March 26, 1997
    Date of Patent: December 22, 1998
    Assignee: Hitachi, Ltd.
    Inventors: Yukio Honda, Nobuyuki Inaba, Mikio Suzuki, Masaaki Futamoto, Hiroyuki Awano, Yoshibumi Matsuda, Yoshihiro Shiroishi
  • Patent number: 5846648
    Abstract: A magnetic recording medium is provided with a structured nucleation layer. The structured nucleation layer comprises a fine-grained seed layer and an intermediate layer. The seed layer (e.g., NiAl, Ti, Cr--Cu, etc.) serves as a template for fine grained-growth of the intermediate layer. The intermediate (e.g., Cr, etc.) layer has preferred crystal textures and an appropriate lattice match to a subsequently deposited magnetic recording layer to allow epitaxial growth of the magnetic recording layer. The intermediate layer provides morphology and orientation to the magnetic recording layer. The magnetic recording layer (e.g., Co-alloy) includes a material which segregates to the alloy grain boundaries to isolate the grains thereof. Each grain of the magnetic recording layer is predominantly a single crystal of small size and uniformly spaced from adjacent grains. The easy axis of the magnetic recording material is predominantly in the plane of the disk, with a random in-plane orientation.
    Type: Grant
    Filed: February 18, 1997
    Date of Patent: December 8, 1998
    Assignee: Komag, Inc.
    Inventors: Tu Chen, Michinobu Suekane, Makoto Imakawa, Kazuhiko Mitarai
  • Patent number: 5843551
    Abstract: A money cake apparatus, is disclosed, which gives the appearance of cash money being pulled from a birthday cake. This apparatus is comprised of a hollow base having one or more spout extensions with open ends, protruding upward from the top of the base. A cake is mounted upon the base after having through-holes cut therein for accommodating the spout extensions. In the preferred embodiment, a see-through glassine or plastic money strip, having individual adjacent compartments, acts as a means for delivering currency from the hollow base up through the spout extensions. Bills of currency are placed in each compartment and protected therein from cake and frosting debris as each bill is pulled, one by one, from the money cake apparatus.
    Type: Grant
    Filed: November 22, 1996
    Date of Patent: December 1, 1998
    Assignees: Eleanor Gallegos Lee, Edmund Lee
    Inventors: Eleanor Gallegos Lee, Edmund Y. Lee, Maryann Vigil Martinez
  • Patent number: 5830584
    Abstract: A magnetic recording medium having low medium noise and suitable for high density magnetic recording is produced with a bicrystal cluster magnetic layer on a glass or glass-ceramic substrate. An underlayer which is formed with a (200) crystallographic orientation induces the formation of a bicrystal cluster microstructure in a magnetic alloy layer epitaxially grown on the underlayer.
    Type: Grant
    Filed: January 16, 1996
    Date of Patent: November 3, 1998
    Assignee: Seagate Technology, Inc.
    Inventors: Ga-Lane Chen, Qixu Chen
  • Patent number: 5827594
    Abstract: An improved rigid winding core for flexible tapes achieving improved interlocking between adjacently stacked cores by a first interlocking mechanism located on the inner rim and a second, additional, mechanism located on the planar surfaces. The first mechanism comprises a number of clamping teeth each of which comprises a first radial extending portion and a second axial extending portion. The clamping teeth is trapped in position by a retention gap formed on the inner rim. The second mechanism comprises a number of complementary lug and recess pairs which are distributed on the core planes. This improved core discloses a winding core with improved interlocking while at the same time provides considerable material saving comparing to conventional designs.
    Type: Grant
    Filed: January 3, 1997
    Date of Patent: October 27, 1998
    Assignee: Acme Magnetic Tapes Ltd.
    Inventor: Ping-Sing Chan
  • Patent number: 5827598
    Abstract: A penetration seal (12) is provided including a flexible patch (14) having adhesive (20) applied to one of the patch's first and second face surfaces (16), (18). An opening (22) is formed in the patch (14) of a size predetermined to fit a particular penetration (24). The opening (22) is slightly smaller than the cross-sectional shape of the penetration (24). In addition, a method of sealing the space (28) between an aircraft penetration (24) and surrounding insulation material (26) is provided. The method includes providing a seal (12) having a patch (14) with first and second face surfaces (16), (18), an opening (22) in the patch (14), and adhesive (20) applied to the first face surface (16). The method further includes applying the patch (14) to the penetration and insulation material by passing the penetration (24) through the opening (22) at the first face and pressing the first face surface (16) to the insulation material (26).
    Type: Grant
    Filed: November 5, 1996
    Date of Patent: October 27, 1998
    Assignee: The Boeing Company
    Inventors: John T. Larsen, John E. Huber
  • Patent number: 5824388
    Abstract: Clamping apparatus for disk-shaped information medium having a central hole, the disk-shaped information medium having a surface upon which information is to be printed, including a baseplate having holes; a slider guidably mounted on the baseplate for centering the disk-shaped information medium with the central hole; stationary holding elements arranged on the baseplate, and movable holding elements arranged on the slider, in such a way that when an information medium is placed in the clamping apparatus, a predetermined number of the stationary and movable holding elements are arranged along the outer periphery of the information medium, and the remainder of the stationary and movable holding elements are arranged along the inner periphery of the central hole of the information medium; a bottom plate positioned under the baseplate and movable perpendicular thereto; and information medium contact elements which are formed on the bottom plate and adapted to pass through holes in the baseplate and contact the
    Type: Grant
    Filed: October 8, 1996
    Date of Patent: October 20, 1998
    Assignee: Eastman Kodak Company
    Inventors: Michael Freund, Alexander Hirsch
  • Patent number: 5820969
    Abstract: A magnetic recording medium comprises a substrate and a magnetic layer provided on the substrate, and has a surface profile satisfying the following conditions (1) to (6):(1) the number of peaks which project above a slice line at a depth of 25 .ANG. from the maximum peak height (PC25) is 5 to 100/mm;(2) the ratio of the number of peaks which project above a slice line at a depth of 50 .ANG. from the maximum peak height (PC50) to PC25 (PC50/PC25) is 1 to 3;(3) the ratio of a high spot count (HSC) at the center line to PC25 (HSC/PC25) is 1 to 4;(4) the skewness is 1 to 5;(5) the maximum peak height is 60 to 200 .ANG.; and(6) the bearing ratio at a depth of 50 .ANG. from the maximum peak height is not more than 3%.
    Type: Grant
    Filed: August 23, 1996
    Date of Patent: October 13, 1998
    Assignee: Kao Corporation
    Inventor: Takeshi Satoh
  • Patent number: 5800891
    Abstract: A bonding pad for securing a waterproof membrane to a roof deck without requiring any penetration of the membrane. The pad has a base member of EPDM with a thin bottom coating of a nonwoven polyester fabric. An EPDM tape having adhesive on both sides is secured to the top surface of the base member. A rigid attachment plate and fastener secure the base member and EPDM tape to the roof deck with the top layer of adhesive securing the membrane to the pad. Preferably the EPDM tape comprises two separated strips forming an air flow channel therebetween with the attachment plate being located with the channel. A primer coat is applied to the top layer of adhesive on the EPDM tape after an adhesive release paper is removed prior to securing the membrane to the bonding pad.
    Type: Grant
    Filed: January 23, 1997
    Date of Patent: September 1, 1998
    Assignee: Bridgestone/Firestone, Inc.
    Inventor: William A. Wasitis
  • Patent number: 5795660
    Abstract: An organic composite coated steel sheet having an excellent corrosion resistance in a rust-contaminated environment. The sheet contains a chromate film on a zinc or zinc alloy plated sheet and an organic resin film on the chromate film. The resin film has a thickness of 0.2-2.0 microns. The resin film contains (a) a base resin obtained by adding at least one basic nitrogen atom and at least two primary hydroxyl groups to the ends of molecules of an epoxy resin, (b) a polyfunctional polyisocyanate compound having at least six isocyanate groups per molecule, and (c) a rust-preventing additive of a sparingly soluble chromate or a mixture of silica and a sparingly soluble chromate.
    Type: Grant
    Filed: December 26, 1996
    Date of Patent: August 18, 1998
    Assignees: NKK Corporation, Kansai Paint Co., Ltd.
    Inventors: Naoto Yoshimi, Takahiro Kubota, Takashi Ishiyama, Masaaki Yamashita, Yasuhiko Haruta
  • Patent number: 5792525
    Abstract: A creep resistant article is provided which is dimensioned from a stock material consisting essentially of a plurality of layers of expanded polytetrafluoroethylene which has been densified. The expanded polytetrafluoroethylene exhibits remnants of a fibril and node structure. The article is resistant to creep at high temperatures and under high loads.
    Type: Grant
    Filed: March 31, 1995
    Date of Patent: August 11, 1998
    Assignee: W. L. Gore & Associates, Inc.
    Inventors: John-Peter Ludwig Fuhr, Michele Marie Gentile, Ross Kennedy Hutter, Michael Earl Kennedy
  • Patent number: 5789056
    Abstract: The present invention describes a disk drive and a thin film magnetic disk with improved recording performance of a magnetic medium having a thin seed layer material consisting of a CrTi alloy between the underlayer and the substrate. The seed layer thickness should be between 5-150.ANG. with 5-30.ANG. being preferable. The percentage of Ti should be greater than 5 at % with recording performance of the magnetic medium improving with increased percentage of Ti. The addition of Ti to Cr, increases the operable thickness range for the seed layer and, thereby, improves the manufacturability.
    Type: Grant
    Filed: January 30, 1997
    Date of Patent: August 4, 1998
    Assignee: International Business Machines Corporation
    Inventors: Xiaoping Bian, Mary Frances Doerner, Mohammad Taghi Mirzamaani, Chon Ngoc Vo
  • Patent number: 5786046
    Abstract: A decorative accessory for attachment to the grille of a vehicle having spaced bars includes a decorative portion positionable against the front surface of the grille and an attachment portion positionable against the rear surface of the grille. The decorative portion includes a first planar disc, a cushioning pad adhesively secured to one face of the first disc, and a bolt having a head which is attached to the cushioned face of the first disc. The face of the first disc opposite the cushioned face thereof bears decorative indicia, and the longitudinal axis of the threaded shank is arranged so as to be substantially normal to the plane of the first disc. The attachment portion is used with a wing nut to secure the decorative portion to the front of the vehicle grille.
    Type: Grant
    Filed: June 5, 1995
    Date of Patent: July 28, 1998
    Inventor: Roderick L. Ott
  • Patent number: 5783316
    Abstract: A process for fabricating a composite material such as that having high thermal conductivity and having specific application as a heat sink or heat spreader for high density integrated circuits. The composite material produced by this process has a thermal conductivity between that of diamond and copper, and basically consists of coated diamond particles dispersed in a high conductivity metal, such as copper. The composite material can be fabricated in small or relatively large sizes using inexpensive materials. The process basically consists, for example, of sputter coating diamond powder with several elements, including a carbide forming element and a brazeable material, compacting them into a porous body, and infiltrating the porous body with a suitable braze material, such as copper-silver alloy, thereby producing a dense diamond-copper composite material with a thermal conductivity comparable to synthetic diamond films at a fraction of the cost.
    Type: Grant
    Filed: August 22, 1996
    Date of Patent: July 21, 1998
    Assignee: Regents of the University of California
    Inventors: Nicholas J. Colella, Howard L. Davidson, John A. Kerns, Daniel M. Makowiecki
  • Patent number: 5776578
    Abstract: A novelty design apparatus has an elongated body member with an outer surface and first and second ends. An elongated body member has an outer surface and first and second ends. A flexible elongated tube is slidably mounted on the outer surface of the body member. One end of the tube is secured to the first end of the body member with the remainder of the tube slidably and rotatably embracing the body member. The central portion of the tube has a plurality of elongated slits which expand into a variety of design configurations when the free end of the tube is rotated, and slidably moved towards the fixed end of the tube. A guard element or disk is secured to the elongated body member to prevent the expanded central portion of the tube from being crushed or distorted when the novelty member is placed on a flat surface with the elongated tube in its expanded position.
    Type: Grant
    Filed: January 31, 1997
    Date of Patent: July 7, 1998
    Inventor: Arnold M. Dejaynes
  • Patent number: 5770289
    Abstract: A die cut self adhesive label sheet, comprising at least three circular CD-ROM labels arranged on a letter or A4 size sheet. The sheet preferably has about a 5 mm margin on each side, with CD-ROM label diameters of about 115 mm (letter size) and 112-113 mm (A4 size). A plurality of additional labels may be formed in the interstices.
    Type: Grant
    Filed: November 13, 1996
    Date of Patent: June 23, 1998
    Inventor: Peter Tracy
  • Patent number: 5753335
    Abstract: A doily includes a substrate with multicolor artwork coating substantially covering the top surface. The artwork coating is applied by four color, or more, process printing. A peripheral margin defines patterned cutouts which diminish the substrate and artwork coating, thereby relatively emphasizing the artwork coating in a substantially imperforate central area. The substrate is foil/paper lamination or paper, including precoated paper. The doilies are made by printing rolls of substrate sheet material, layering sheet from plural rolls, and cutting and embossing plural doilies in aligned stacks.
    Type: Grant
    Filed: August 7, 1996
    Date of Patent: May 19, 1998
    Assignee: Mafcote Industries, Inc.
    Inventor: Howard E. Harper
  • Patent number: 5744256
    Abstract: The present invention relates to a high-density magnetic recording medium (or "media" as it is sometimes called) for a recording/reproduction system (such as thosed used in computer disk drives) and, more particularly, to a magnetic recording medium having a plurality of magnetic recording layers such that the uppermost layer is comparatively thinner and more densely structured than the lower magnetic recording layers. The present magnetic recording medium comprises a non-magnetic plated substrate, a non-magnetic underlying layer laminated on the plated substrate, a plurality of magnetic alloy layers including the uppermost layer laminated onto the underlying layer, a non-magnetic covering layer laminated onto the uppermost layer, and a lubricating layer formed onto the non-magnetic covering layer.
    Type: Grant
    Filed: September 16, 1992
    Date of Patent: April 28, 1998
    Assignee: Hitachi, Ltd.
    Inventors: Noriyoshi Goda, Shinya Matsuoka, Tatsuo Kawaide, Takaaki Shirakura
  • Patent number: 5744253
    Abstract: A magnetic thin-film medium characterized by high coercivity, loop squareness, and signal-to-noise ratio characteristics. The medium includes a disc-like substrate, a sputtered Cr underlayer having a thickness between 100-300 .ANG., and a sputtered Co alloy magnetic thin-film layer having a thickness between 250-800 .ANG.. The sputtered Cr and magnetic layers are preferably formed under sputtering conditions in which a negative bias of between -50 to -600 volts is applied to the substrate.
    Type: Grant
    Filed: October 22, 1992
    Date of Patent: April 28, 1998
    Assignee: HMT Technology Corporation
    Inventors: Brij Bihari Lal, Tadashi Shinohara
  • Patent number: 5723210
    Abstract: An organic composite coated steel sheet having excellent chromate dissolution resistance, wet adhesion, and corrosion resistance before and after working. The steel sheet comprises a chromate-silica film on at least one face of a zinc or zinc base alloy plated steel sheet, the silica-added chromate film having about 5 to 500 mg/m.sup.2 in terms of metal Cr content and being formed from a chromate solution containing about 25 to 70 wt % of Cr.sup.+6 based upon total Cr content. A resin coating film is adhered to the chromate-silica film and is formed from an aqueous paint. The aqueous paint includes an aqueous anionic resin and/or an aqueous nonionic resin, a reducing agent, and a water-dispersed silica. The resin coating film is deposited in a dry weight amount of about 0.1 to 3 g/m.sup.2.
    Type: Grant
    Filed: May 29, 1996
    Date of Patent: March 3, 1998
    Assignees: Kawasaki Steel Corporation, Dai Nippon Toryo Co. Ltd.
    Inventors: Shigeko Sujita, Takahiro Kusakabe, Kyoko Hamahara, Kazuo Mochizuki, Hiroyuki Tanabe, Masanori Nagai, Nobuyoshi Kato, Osamu Ogawa
  • Patent number: 5723192
    Abstract: A composite compression molded article is formed from a composition comprising: a) 60 to 97%, preferably 75 to 90%, by weight of rubber particles of a varied size distribution in the range of 5 to 30 mesh, b) 3 to 20%, preferably 5 to 12%, by weight, of a polymerizable material, said polymerizable material being non-reactive with said rubber particles, and polymerizing to form a matrix surrounding said rubber particles, and c) 0 to 20%, preferably 5 to 13%, by weight, of reinforcing fibres, said fibres being non-reactive with said polymerizable material; the article can particularly be formed as a gasket or adjustment unit which absorbs mechanical vibrations transmitted through a metal component thereby protecting an adjacent concrete component against fracture caused by such vibrations; other articles may also be produced including dock wedges, wheel chocks, speed bumps, delineator bases, anti-vibration pads, manhole and catch basin adjustment risers and portable temporary road or path surface members for us
    Type: Grant
    Filed: May 29, 1996
    Date of Patent: March 3, 1998
    Assignee: GNR Technologies Inc.
    Inventor: Slawomir Jonasz
  • Patent number: 5702795
    Abstract: A spirally woven fabric as well as a prepreg and a rotary body each using the fabric therein is adapted for use as materials for high-speed rotary bodies such as flywheels for electric power storage. The fabric composed of interwoven warps and wefts is such that its warps are arranged in a spiral direction, and the warps positioned more outside in the radial (weft) direction have a higher specific elastic modulus in the warp direction than those positioned more inside in the radial direction whereby a rotary body made of the fabric is enabled to be rotated at a higher rotating speed without breakage of the wefts and consequent peeling-off between the warps.
    Type: Grant
    Filed: February 12, 1997
    Date of Patent: December 30, 1997
    Assignee: Nippon Oil Co., Ltd.
    Inventors: Takayuki Matsumoto, Tetsufumi Ikeda, Akiyoshi Kojima
  • Patent number: 5700561
    Abstract: The improved version of a chromated metal sheet has a chromate layer on at least one side of a metal substrate or a plated metal substrate and it is characterized in that the chromate layer has a chromium deposit of 10-200 mg/m.sup.2 per surface in terms of metallic Cr, that the chromate layer contains silica in an amount of 0.1-6.0 in terms of the weight ratio of SiO.sub.2 to Cr, and that the chromate layer contains at least one kind of lubricating particles selected from the group consisting of graphite, MoS.sub.2, BN, calcium stearate and an organic lubricating substance in an amount of 0.1-100 in terms of the weight ratio of the lubricating particles to Cr. The lubricating particles can have a surface layer capable of nonionic surface activating action, and this surface layer accounts for 1-70 wt % of the lubricating particles.
    Type: Grant
    Filed: November 16, 1995
    Date of Patent: December 23, 1997
    Assignee: Kawasaki Steel Corporation
    Inventors: Junichi Mano, Youzou Ogawa, Masaki Mabuchi, Keizou Okuno, Nobuo Totsuka
  • Patent number: 5658659
    Abstract: Media according to the present invention is comprised of individual magnetic grains as small as 300 .ANG. or smaller in diameter, which are uniformly spaced apart by a distance between 5 and 50 .ANG. by a solid segregant. This media will typically exhibit coercivity and remanent coercivity squareness of at least 0.8 each, a switching field distribution of less than 0.2, and a coercivity of at least 1500 Oe (with a minimum required Pt content), while simultaneously providing the lowest media jitter noise for optimum magnetic performance. The media is deposited at a low partial pressure of water and in the presence of an optimum amount of contributant gas on a doped nucleation layer for grain growth control.
    Type: Grant
    Filed: August 5, 1994
    Date of Patent: August 19, 1997
    Assignee: Komag, Inc.
    Inventors: Tu Chen, Rajiv Yadav Ranjan, Tsutomu Tom Yamashita, Miaogen Lu, Keith Kadokura, John Ko-Jen Chen, Ting Joseph Yuen
  • Patent number: 5656350
    Abstract: A thermosetting resin composition comprising:[A] a polyfunctional epoxy resin produced from a reaction between a mixture of at least two polyhydric phenols selected from (a) bis(4-hydroxyphenyl)methane, (b) bis(4-hydroxyphenyl)ethane, (c) bis(4-hydroxyphenyl)-propane, (d) tris(4-hydroxyphenyl)alkane and (e) tetra(4-hydroxyphenyl)alkane, and epichlorohydrin, and[B] an acid anhydride curing agent; and a coil and a panel formed of said composition.
    Type: Grant
    Filed: January 31, 1995
    Date of Patent: August 12, 1997
    Assignee: Hitachi, Ltd.
    Inventors: Toru Koyama, Chikashi Kanno, Hirokazu Takasaki, Koo Honjoo, Shinichi Toyoda, Hiroshi Suzuki, Ikushi Kano
  • Patent number: 5633061
    Abstract: A flexible medium for a scrolling color changer and method of making thereof. The medium is made by applying an ink using a Meyer Rod which has varying cell lengths along its length. This leaves varying size cells of ink at different locations along the length of the medium. The ink has special characteristics whereby its evaporation rate and viscosity are carefully controlled. The viscosity is such that an amount of levelling will occur will be equal to the distance between any cells, but that cell to cell levelling will not, in general, occur.
    Type: Grant
    Filed: August 8, 1994
    Date of Patent: May 27, 1997
    Assignee: Light & Sound Design, Ltd.
    Inventor: William E. Hewlett
  • Patent number: 5618613
    Abstract: A fiber reinforcing mat is used proximate a through hole in an automotive structural element in order to reinforce the element in the area approximate the through hole. The fiber reinforcing mat is comprised of a warp having a plurality of radially extending loops and a weft which is woven through the loops in a spiral fashion. Since the weft is configured as a spiral, weft material is more dense in the area close to the through hole than in the area distal of the through hole. Consequently, the stiffness of the structural element decreases gradually in radial directions away from the through hole.
    Type: Grant
    Filed: December 14, 1994
    Date of Patent: April 8, 1997
    Assignee: Chrysler Corporation
    Inventor: Delbert D. DeRees
  • Patent number: 5618603
    Abstract: A fiber reinforcing mat is used proximate a through hole in an automotive structural element in order to reinforce the element in the area approximate the through hole. The fiber reinforcing mat is comprised of a warp having a plurality of radially extending loops and a weft which is woven through the loops in a spiral fashion. Since the weft is configured as a spiral, weft material is more dense in the area close to the through hole than in the area distal of the through hole. Consequently, the stiffness of the structural element decreases gradually in radial directions away from the through hole.
    Type: Grant
    Filed: April 24, 1996
    Date of Patent: April 8, 1997
    Assignee: Chrysler Corporation
    Inventor: Delbert D. DeRees
  • Patent number: 5616423
    Abstract: A ceramic substrate has a five-layered thin metallic film thereon. The first layer is Ti, Zr, Cr and/or W; the second layer is Ni and/or Mo; the third layer is one or more metals of group Ib in the periodic table; the fourth layer contains the same metals as the second layer and the fifth layer contains the same metals as the third layer.
    Type: Grant
    Filed: July 6, 1994
    Date of Patent: April 1, 1997
    Assignee: Sumitomo Metal Industries, Ltd.
    Inventors: Akira Sanjyou, Yasuo Nakatsuka, Yasuyuki Morita, Koichi Uno
  • Patent number: 5612146
    Abstract: A soft-magnetic multilayer thin film produced by electroplating, wherein an anode-dissolution process is effected by intermittently applying a reverse d.c. bias current with respect to the plating-forward current. Involving the anode-dissolution process allows the formation of a re-dissolution effect layer differing in crystal structure from the plated film layer. A soft-magnetic multilayer thin film characterized by having a multilayer film structure which comprises a plated layer and a re-dissolution effect layer laminated to each other and which the plated layer is at least magnetically isolated. Further, a method of manufacturing a soft-magnetic multilayer thin film having a multilayer film structure magnetically isolated only through plating, which is offered by introducing the anode-dissolution process.
    Type: Grant
    Filed: March 5, 1996
    Date of Patent: March 18, 1997
    Assignee: Matshushita Electric Industrial Co., Ltd.
    Inventors: Nobuyuki Komura, Yuuji Omata
  • Patent number: 5607740
    Abstract: A magnetic disc according to this invention is of a structure in which underlying layer and magnetic layer are formed in succession on non-magnetic substrate, and one non-magnetic intermediate layer or more and one second magnetic layer or more are further stacked one after another thereon. The non-magnetic intermediate layer is formed as film layer by sputtering, and film thickness calculated by film formation rate and film formation time is 0.2 nm.about.1.0 nm. Thus, with this magnetic disc, coercive force is improved. Accordingly, signals can be recorded at higher density. As a result, application to magnetic disc devices of larger memory capacity can be made.
    Type: Grant
    Filed: October 14, 1994
    Date of Patent: March 4, 1997
    Assignee: Sony Corporation
    Inventor: Makoto Noda
  • Patent number: 5601895
    Abstract: In one embodiment a flexible puncture proof material for preventing a puncture by a sharp element having a pointed end includes a flexible layer for providing a flexible substrate for binding and embedding capture elements, a first plurality of capture elements for capturing the pointed end of the sharp element, the first plurality of capture elements being essentially identical and arranged in a first two dimensional array embedded in the flexible layer, a second plurality of capture elements being essentially identical and arranged in a second two dimensional array bound to and embedded in the flexible layer, the second two dimensional array offset relative to the first two dimensional array for capturing the pointed end of the sharp element if the pointed end of the sharp element passes between the first plurality of capture elements, and a third plurality of capture elements for capturing the pointed end of the sharp element, the third plurality of capture elements arranged in a third two dimensional arra
    Type: Grant
    Filed: December 28, 1994
    Date of Patent: February 11, 1997
    Inventor: Frank W. Cunningham
  • Patent number: 5599603
    Abstract: In a method of making a carbon fibre preform such as for use in the manufacture of a friction disc a compressible body of carbon fibre or carbon fibre precursor material is acted upon by compressing means to compress the body to a required thickness and then operated upon by means such as a barbed needle-punch needle for a stitching thread which penetrates substantially the whole thickness of the body whereby the compressed preform may be removed from action by the compressing means in a free-standing and compressed state. If the method uses carbon fibre precursor material, that is then subjected to carbonization.
    Type: Grant
    Filed: February 28, 1994
    Date of Patent: February 4, 1997
    Assignee: Dunlop Limited, A British Company
    Inventors: Maurice J. Evans, Keith A. Williams, Ronald Fisher
  • Patent number: 5597064
    Abstract: The present invention provides inexpensive electric contact materials having higher hardness and higher melting point and being more excellent in the points of wear resistance and environmental resistance over the electric contact materials of Ag type, Au type, platinum group type, etc. having been used so far, production methods thereof and electric contacts used said contact materials.In the electric contact materials of the invention, basically, a covering layer having at least one selected from transition metals of groups IVa (Ti, Zr, Hf, etc.), Va (V, Nb, Ta, etc.) and VIa (Cr, Mo, W, etc.) as a major ingredient is formed on the substrate as an electric contact in a thickness of 0.03 to 100 .mu.m, and, if need be, a fixed intermediate layer is formed between said covering layer of electric contact and substrate or a fixed surface layer is formed on the outside of covering layer of electric contact, thus aiming at further improvement in the characteristics of contact.
    Type: Grant
    Filed: December 21, 1990
    Date of Patent: January 28, 1997
    Assignee: The Furukawa Electric Co., Ltd.
    Inventors: Masanori Ozaki, Keiji Mashimo
  • Patent number: 5593743
    Abstract: A Christmas tree skirt support for supporting a decorative Christmas tree skirt around the base of a Christmas tree. The preferred embodiment is constructed of plastic in a grid pattern so that the Christmas tree skirt is supported away from contact with the Christmas tree, the Christmas tree stand, and the water reservoir while allowing access through the openings in the grid to the water reservoir for refilling. The skirt support may be dissambled to one or more flat pieces for storage.
    Type: Grant
    Filed: June 6, 1995
    Date of Patent: January 14, 1997
    Inventor: Patricia M. Baker
  • Patent number: 5591533
    Abstract: In a magnetoresistive read transducer, a material which is inert with respect to the soft film magnetic biasing layer is formed at the surface of the substrate prior to soft film deposition. In a preferred embodiment of the present invention, a substrate surface layer of metal such as Cr or Ta is used. These metals have high resistivity due to partial oxidation when deposited on the substrate to reduce shunting of sensing current through the magnetoresistive layer, and further acts as a barrier to protect the soft film from substrate interface contamination. The surface layer also acts as a seed layer to set the soft film magnetization orientation in a well-defined direction therefore reducing magnetic instability.
    Type: Grant
    Filed: June 1, 1995
    Date of Patent: January 7, 1997
    Assignee: International Business Machines Corporation
    Inventor: Mustafa Pinarbasi
  • Patent number: 5589278
    Abstract: Disclosed is a magnetoresistive thin-film, which a (110) oriented epitaxial buffer layer 2 made of a body-centered cubic crystalline metal or alloy is formed on a single crystalline substrate 1, thereon with layer a (110) oriented epitaxial Fe/Cr superlattice film on which Fe layers 3 and Cr layers 4 alternately are epitaxially grown, the Fe/Cr superlattice having a structure in which staircase facets which have ridge lines to the <100> direction at (110) surface and have {100} side surfaces stand side by side to the <110> direction. The dispersion of the widths of the staircase facets falls within .+-.50%. Also disclosed is a magnetoresistive device which is provided with the above magnetoresistive thin-film and a means for applying a magnetic field parallel to the ridge lines of the staircase facets to the thin-film.
    Type: Grant
    Filed: July 5, 1995
    Date of Patent: December 31, 1996
    Assignee: NEC Corporation
    Inventor: Atsushi Kamijo
  • Patent number: 5587213
    Abstract: An adornment for affixing to fabric comprised of several ornaments in a series which are attached by elastic threads.
    Type: Grant
    Filed: November 16, 1994
    Date of Patent: December 24, 1996
    Inventor: Roberta M. Ruschmann
  • Patent number: 5580670
    Abstract: A heavily thermally stressable component comprising a graphite and a metal part, e.g., copper or a copper alloy, soldered together. Between the solder and the metal part there is an intermediate layer comprising chromium or an alloy containing a substantial proportion of chromium with copper and/or nickel additives. This special intermediate layer provides a good bond between the graphite and the metal which remains stable even under the heaviest cyclic thermal stresses.
    Type: Grant
    Filed: June 12, 1995
    Date of Patent: December 3, 1996
    Assignee: Schwarzkopf Technologies Corporation
    Inventors: Robert Grill, Nikolaus Reheis, Michael Witwer
  • Patent number: 5580667
    Abstract: A thin-film multilayered recording medium is disclosed. The medium contains two or more magnetic thin-film sublayers separated by an isolation layer having an axial composition gradient.
    Type: Grant
    Filed: April 2, 1993
    Date of Patent: December 3, 1996
    Assignee: HMT Technology Corporation
    Inventors: Brij B. Lal, Tadashi Shinohara
  • Patent number: 5536585
    Abstract: A magnetic recording medium is constructed with a substrate made of glass, one or two underlayers, and a magnetic film. In order that the easy magnetization axis of the magnetic film is parallel to the magnetic film, an underlayer having an NaCl crystallographic structure is superposed on the substrate. A magnetic film made of a Co based alloy having a hexagonal close packed crystallographic structure is formed on this underlayer, putting an underlayer made of a material having a body centered cubic crystallographic structure therebetween at need. Magnetic anisotropy of the magnetic film is increased by forming grooves in a predetermined direction in a surface portion of the substrate. These grooves play a role also for defining the orientation of the underlayer made of the material having an NaCl crystallographic structure.
    Type: Grant
    Filed: March 9, 1994
    Date of Patent: July 16, 1996
    Assignee: Hitachi, Ltd.
    Inventors: Masaaki Futamoto, Atsushi Nakamura, Nobuyuki Inaba, Yoshiyuki Hirayama, Yoshibumi Matsuda, Mikio Suzuki, Yukio Honda