Patents Represented by Attorney, Agent or Law Firm Pillsbury Madison & Sutro Intellectual Property Group, LLP
  • Patent number: 6184180
    Abstract: Disclosed is a reversible heat-sensitive recording material comprising a support and a reversible heat-sensitive recording layer containing a dye precursor which is usually colorless or a pale color and a reversible color developing agent capable of causing a reversible change in color density of the dye precursor due to the difference in cooling rate after heating, and the reversible color developing agent is a compound represented by the following formula (I): wherein R1 and R2 may be the same or different from each other and each represent a C1-18 divalent hydrocarbon group; R3 represents a C1-24 hydrocarbon group; X1 represents a divalent connecting group having at least one —CONH— bonding; X2 represents an oxygen atom or a sulfur atom; n is an integer of 1 to 3; and m is 0 or 1.
    Type: Grant
    Filed: April 5, 1999
    Date of Patent: February 6, 2001
    Assignee: Mitsubishi Paper Mills Limited
    Inventors: Jun Maruyama, Hidekazu Sano
  • Patent number: 6158772
    Abstract: The present invention relates to a method for making a vehicle frame member having a shock absorbing mounting portion constructed and arranged to be mounted to a structural component within a motor vehicle. The method comprises hydroforming a tubular blank within a hydroforming die by supplying pressurized fluid to the hollow interior of the blank. A drawfornming member is moved inwardly with respect to the cavity of the hydroforming die while the fluid is pressurized so that the drawforming member deforms a portion of the tubular wall inwardly to form a recessed portion having an annular side wall portion and a bottom wall portion. The formed tubular blank is then removed from the hydroforming die and a mounting structure is disposed inside the recessed portion and the blank and mounting structure are then disposed within an injection molding die. Molten shock absorbing material is injected into the recessed portion so that the molten material surrounds the mounting structure.
    Type: Grant
    Filed: January 14, 2000
    Date of Patent: December 12, 2000
    Assignee: Cosma International Inc.
    Inventor: Tommy J. Skudutis
  • Patent number: 6159356
    Abstract: This process treats copper concentrates, either in the form of a primary sulfide, such as chalcopyrite, or a secondary sulfide, such as chalcocite and covellite, to obtain high purity copper metal having not less than 99.99% purity. In the case of a primary sulfide, the copper concentrate is subjected to leaching and is transformed into cement or a precipitated sulfide. In the case of the secondary sulfide, the copper concentrates are subjected to leaching with ferric fluoborate and fluoboric acid. Subsequent to leaching, the solution is subjected to copper electrowinning in a diaphragm cell to deposit copper on the cathode of the diaphragm cell.
    Type: Grant
    Filed: April 14, 1998
    Date of Patent: December 12, 2000
    Assignee: Ecochem Aktiengesellschaft
    Inventor: Gianni Zoppi
  • Patent number: 6138414
    Abstract: A door glass run attaches to a door frame of a vehicle for guiding upward and downward movement of a glass window. In the door glass run of this invention, a plurality of grooves formed in the bottom surface of the door glass run extend lengthwise and are spaced widthwise from each other at predetermined intervals. According to one embodiment, the grooves are arranged so as to successively increase in cross-sectional areas thereof from a centermost groove or centermost grooves to outermost grooves. According to another embodiment, the bottom surface of the door glass run includes both a central surface portion that is flat and free of grooves and side surface portions, which are formed on opposite side walls of the flat central surface portion and have grooves formed therein.
    Type: Grant
    Filed: September 8, 1998
    Date of Patent: October 31, 2000
    Assignee: Toyoda Gosei Co., Ltd.
    Inventors: Hitoshi Ohmori, Masanori Aritake, Atushi Yatuda
  • Patent number: 6120940
    Abstract: An electrochemical storage cell or battery including as at least one electrode at least one electrically conductive polymer, the polymer being poly(1,4-bis(2-thienyl)-3-fluorophenylene), poly(1,4-bis(2-thienyl)-2,5-difluorophenylene), poly(1,4-bis(2-thienyl)-2,3,5,6-tetrafluorophenylene), or poly(1,4-bis(2-thienyl)-benzene). These polymeric electrodes have remarkably high charge capacities, and excellent cycling efficiency. The provision of these polymeric electrodes further permits the electrochemical storage cell to be substantially free of metal components, thereby improving handling of the storage cell and obviating safety and environmental concerns associated with alternative secondary battery technology.
    Type: Grant
    Filed: October 30, 1997
    Date of Patent: September 19, 2000
    Assignee: The Johns Hopkins University
    Inventors: Theodore O. Poehler, Peter Searson, Jeffrey Gilbert Killian, Haripada Sarker, Jennifer Giaccai, Yosef Gofer
  • Patent number: 6117709
    Abstract: A heat sink with first and second sides are connected to a lead frame. The lead frame has a first group of inner leads having front end portions arranged to make a specific interval with the first side of the heat sink on a horizontal plane and a second group of inner leads having front end portions arranged to make a specific interval with the second side of the heat sink on the horizontal plane. In this stat, the first and second group of the inner leads are connected to a semiconductor chip mounted on the heat sink through several wires. Accordingly, the inner leads and the semiconductor chip can be connected without causing short-circuit between the inner leads and the heat sink.
    Type: Grant
    Filed: October 6, 1998
    Date of Patent: September 12, 2000
    Assignee: Denso Corporation
    Inventor: Shinichi Hirose
  • Patent number: 6117567
    Abstract: A light emitting polymer diode device for obtaining voltage controlled colors, based on thin polymer films incorporating more than one electroluminescent conjugated polymer and zero or more non-conjugated polymers, and where this polymer blend is formed by mixing the different polymers in a common solvent, which electrolumincscent polymers phase separate in the polymer blend with domains of polymers that have a diameter comparable with the thickness of the polymer film, where the polymer film is sandwiched between two electrodes, one of which injects electrons and one which injects holes, possibly with electron and hole transport layers in between the polymer layer and the electrodes, and where the electrons and holes form excitons in the polymer film leading to emission of photons with colors determined by the bandgap of the emitting materials, and in which the more than one conjugated polymers have different emission colors, and where the polymers of lower bandgap emit light at a lower applied voltage than
    Type: Grant
    Filed: April 17, 1997
    Date of Patent: September 12, 2000
    Assignee: Forskarpatent i Linkoping AB
    Inventors: Mats R. Andersson, Rolf M. Berggren, Bengt G. Gustafsson, Ulf T. Hjertberg, Olle W. Inganas, Arne M. Granstrom
  • Patent number: 6118191
    Abstract: An electric rotating machine as disclosed herein includes an armature core having an outer peripheral portion with slots, a rotatable shaft having an outer periphery and rotatably supporting the armature core, a plurality of lower layer coils each having at opposite ends thereof respective lower layer coil protrusion portions, and a plurality of upper layer coils disposed radially outside of the lower layer coils and each having at opposite ends thereof respective upper layer coil protrusion portions. According to the novel method of this invention, the lower layer coil protrusion portions are bonded to the upper layer coil protrusion portions with a welding torch of an arc welding machine by radially moving at least one of the welding torch and boundary portions, at which the corresponding protrusion portions abut one another, relative to each other.
    Type: Grant
    Filed: December 19, 1997
    Date of Patent: September 12, 2000
    Assignee: Denso Corporation
    Inventors: Hideki Ichikawa, Kenichi Shibayama, Masashi Yoshida, Yujirou Kuwamura, Keizou Zyoukou, Junji Oishi
  • Patent number: 6113749
    Abstract: A substrate is processed in a device having a vacuum chamber, at least one sputtering chamber, and a flow channel connecting the vacuum chamber to the sputtering chamber. According to the method, material is sputtered onto the substrate located in the sputtering chamber so that a sputtering gas flux amount is consumed by deposition onto the substrate. Prior to and during sputtering, sputtering gas flux flows into the vacuum chamber so that the total amount of sputtering gas flux flowed into the vacuum chamber prior to sputtering is substantially equal to the sputtering gas flux amount. At least during sputtering, the vacuum chamber is maintained at a partial pressure in a range of from more than 1.times.10.sup.-5 mbar up to 5.times.10.sup.-3 mbar.
    Type: Grant
    Filed: April 12, 1996
    Date of Patent: September 5, 2000
    Assignee: Odme International B.V.
    Inventors: Ronaldus J.C.M. Kok, Jeroen F.M. Landsbergen, Jan Visser
  • Patent number: 6114786
    Abstract: A flanged part of an insulating bobbin is formed with a first hook part for directing a lead wire of a field coil in a radially inward direction along an end surface of the flanged part, and a second hook part for directing the radially inwardly directed field coil in an axial direction. The lead wire of the field coil is arranged to extend in the radial direction from a coil-winding part of the field coil through the first hook part, and to extend in the axial direction through the second hook part.
    Type: Grant
    Filed: June 21, 1999
    Date of Patent: September 5, 2000
    Assignee: Denso Corporation
    Inventors: Hiroshi Ishida, Tooru Ooiwa
  • Patent number: 6109645
    Abstract: An interior finish member having a door suitable for an air bag comprises a main body and a cover portion. The main body surrounds the periphery of the cover portion, and the main body and the cover portion form a continuous surface. The cover portion covers a folded air bag of an air bag device. The cover portion comprises: a door portion which covers the folded air bag; a breakable portion defined by a recessed periphery of the door portion whose thickness is thinner than adjacent portions of the interior finish member so that it may be broken easily in deployment of the air bag; and a hinge portion for connecting the door portion with the main body and for providing a pivot around which the door portion rotates when the door portion opens under a force of an expanding air bag. The main body is made of thermoplastic resin, and the cover portion is made of thermoplastic elastomer. Because they are capable of thermally fusing with each other, the main body and the cover portion can be integrally formed.
    Type: Grant
    Filed: January 29, 1998
    Date of Patent: August 29, 2000
    Assignee: Toyoda Gosei Co., Ltd.
    Inventors: Chiharu Totani, Shigehiro Ueno, Hisao Hanabusa, Akiyoshi Nagano, Tetsuya Fujii, Katsuhiro Katagiri, Kenichi Furuta, Katsuhiro Okumura, Noriyuki Horiuchi, Muneharu Sasajima, Yukihiko Horiba
  • Patent number: 6089398
    Abstract: This lightweight explosion-mitigating assembly includes at least a containment structure and a door. The containment structure and door each include at least one set of engagement flanges. The flanges are movable between an interlocking arrangement and a non-interlocking arrangement. In the non-interlocking arrangement, the flanges are sufficiently relatively operatively free from each other to permit movement of the door relative to the containment structure between open and closed positions. On the other hand, in the interlocking arrangement, the door is in the closed position and the flanges are both mutually engageable and slidable relative to each other into mutual engagement and out of mutual engagement.
    Type: Grant
    Filed: July 24, 1998
    Date of Patent: July 18, 2000
    Assignee: Galaxy Scientific Corporation
    Inventor: Edward M. Weinstein
  • Patent number: 6068786
    Abstract: A low-fire ceramic composition and a process for manufacturing ceramic articles using such a composition. The ferrite composition containing a mixture of finely divided particles of 0.1-2 wt % of V.sub.2 O.sub.5 and 99.9-98 wt % of Ni--Cu--Zn ferrite can be densified at an ultra-low temperature of 850-900.degree. C. to form a ceramic ferrite body having a sufficient sintered density. The ferrite composition can be processed with organic solvents, polymeric binder and plasticizer to produce an unfired green tape which is cofirable with high electrical conductivity metallurgies such as silver to produce multilayer ceramic inductor devices.
    Type: Grant
    Filed: August 17, 1999
    Date of Patent: May 30, 2000
    Assignee: Darfon Electronics Corp.
    Inventors: Jau-Ho Jean, Cheng-Horng Lee
  • Patent number: 6066238
    Abstract: A process for the separation of propylene from an input stream of C3 hydrocarbons containing propylene and methyl acetylene and/or propadiene and, optionally, C4 and/or higher hydrocarbons is described. The process includes subjecting the input stream to fractional distillation to separate propylene as an overhead stream leaving a bottoms stream containing the methyl acetylene and/or propadiene and the C4 and/or higher hydrocarbons, when present. A propane-containing stream is added to said input stream whereby propane is separated as part of the bottoms stream. The propylene content of the bottoms streams is maintained at less than 10% weight. The amount of propane added to the input stream is such that the weight of propane, propylene, and C4 and/or higher hydrocarbons, when present, in the bottoms stream is greater that the total weight of methyl acetylene and propadiene in the bottoms stream.
    Type: Grant
    Filed: November 19, 1998
    Date of Patent: May 23, 2000
    Assignee: Imperial Chemical Industries PLC
    Inventor: Graham Michael Perry