Patents Examined by Charles Nold
  • Patent number: 6063505
    Abstract: The object of the present invention lies in offering plastic film having a suitable degree of moisture permeability and low water droplet adhesion.Plastic film which is characterized in that, in plastic film of moisture permeability, as prescribed in JIS Z0208, of less than 1000 g/m.sup.2 /24 h, there is lamination with a film of moisture permeability at least 1000 g/m.sup.2 /24 h.
    Type: Grant
    Filed: April 24, 1997
    Date of Patent: May 16, 2000
    Assignee: Elf Atochem S.A.
    Inventors: Takatoshi Kuratsuji, Jerome Maillet, Jun Yamamoto
  • Patent number: 6057048
    Abstract: An electroluminescent device comprised of an anode, a hole transporting layer, a light emitting layer, and a cathode, wherein said light emitting layer contains a component of the formula ##STR1## wherein Ar.sup.1, Ar.sup.2, Ar.sup.3, and Ar.sup.4 are each independently aryl or optionally aliphatic; R.sup.1 and R.sup.2 are independently selected from the group consisting of hydrogen, aliphatic, halogen, and cyano; L is a suitable linking group; and n is a number of from 0 to about 3.
    Type: Grant
    Filed: October 1, 1998
    Date of Patent: May 2, 2000
    Assignee: Xerox Corporation
    Inventors: Nan-Xing Hu, Mohammad Esteghamatian, Yu Qi, Zoran D. Popovic, Beng S. Ong, Ah-Mee Hor
  • Patent number: 6051294
    Abstract: Hydroxy-functional polyethers having a "cardo" diphenylene group in their backbones are prepared by contacting at least one dinucleophilic monomer with at least one dtglycidyl ether of a cardo bisphenol, such as bis(hydroxyphenyl)fluorene, phenolphthalein, or phenolphthalimidine or a substituted cardo bisphenol, such as a substituted bis(hydroxyphenyl)fluorene, a substituted phenolphthalein or a substituted phenolphthalimidine, under conditions sufficient to cause the nucleophillo moieties of the dinucleophilic monomer to react with epoxy moieties to form a polymer backbone containing pendant hydroxy moieties and ether, imino, amino, sulfonamido or ester linkages. These polyethers possess a combination of high barrier to oxygen transmission (i.e., oxygen transmission rate less than 10.0 cm.sup.3 -mil/100 in.sup.2 -atm-day to oxygen) and high heat resistance (i.e., Tg above 120.degree. C.).
    Type: Grant
    Filed: February 9, 1998
    Date of Patent: April 18, 2000
    Assignee: The Dow Chemical Company
    Inventors: Jerry E. White, H. Craig Silvis, Stephen E. Bales, Michael N. Mang, Muthiah N. Inbasekaran
  • Patent number: 6048631
    Abstract: An object of this invention is to provide an organic EL device material stable against heat, having a high purity in bluish light emission and a high efficiency. The organic EL device comprises a glass substrate, a transparent anode, a TPD which is an electron hole implanted transporting layer, an organic luminous layer, Alq.sub.3 which is an electron implanted transporting layer and a cathode. The organic luminous layer is an aluminum complex which is .mu.-oxozi [bis(2-(2-benzo oxazolyl)-phenolate) aluminum (III)]. Plus and minus DC voltages are applied to the anode and cathode respectively. The organic luminous layer indicates bluish light emission of 1314 cd/m.sup.2 at 16V. A peak wave length of the luminous spectrum is 420 nm and chromaticity coordinates are x=0.185 and y=0.178 and a high purity as bluish color is assured. The organic EL device material is stable against heat and difficult to deteriorate.
    Type: Grant
    Filed: July 11, 1997
    Date of Patent: April 11, 2000
    Assignee: Futaba Denshi Kogyo K.K.
    Inventors: Hisamitsu Takahashi, Yoshihisa Tsuruoka, Satoshi Tanaka, Toshio Miyauchi
  • Patent number: 6048630
    Abstract: Disclosed herein are novel dopant compounds of Formula I below, wherein those compounds are used in organic light emitting devices (OLED's) for device elements capable of emitting light of wavelengths associated with saturated red emissions. ##STR1## Also disclosed are OLED's utilizing device elements comprising the above compounds and display devices based on those OLED's.
    Type: Grant
    Filed: December 23, 1996
    Date of Patent: April 11, 2000
    Assignees: The Trustees of Princeton University, The University of Southern California
    Inventors: Paul Burrows, Stephen R. Forrest, Mark E. Thompson
  • Patent number: 6048593
    Abstract: A polymer concrete composition preparable by combining components comprising: a resin blend comprising at least one unsaturated vinyl ester resin and at least one unsaturated polyester resin; at least about 10 weight percent, based on the total weight of the composition, of extremely filler material having an average particle size of less than about 500 microns; and at least about 20 weight percent, based on the total weight of the composition, of fine filler material having an average particle size of about 500-1000 microns.
    Type: Grant
    Filed: November 8, 1996
    Date of Patent: April 11, 2000
    Assignee: Espeland Composite Technology, Inc.
    Inventors: John D. Espeland, Robert W. Espeland, Michael L. Olson
  • Patent number: 6045930
    Abstract: Disclosed herein are organic light emitting devices in which emitting layers (EL) comprise a suitable receiving compound according to Formulas I and II: ##STR1## wherein M is an ion of a divalent or trivalent metal atom, wherein n=3 when M is trivalent, and n=2 when M is divalent, wherein the metal atom is selected from the group consisting of aluminum, gallium, indium, and zinc, and wherein X, Y, and Z are each individually and independently C or N, such that at least two of X, Y and Z are N; and ##STR2## wherein R is alkyl, phenyl, substituted alkyl, substituted phenyl, trimethylsilyl, or substituted trimethylsilyl.Also disclosed are OLED's utilizing device elements comprising the above compounds and display devices based on those OLED's.
    Type: Grant
    Filed: May 2, 1997
    Date of Patent: April 4, 2000
    Assignees: The Trustees of Princeton University, The University of Southern California
    Inventors: Mark E. Thompson, Jon A. Cronin, Stephen R. Forrest, Paul Burrows
  • Patent number: 6040069
    Abstract: The invention relates to an electroluminescence device having at least one light-emitting layer which comprises conjugated, stiff-chain polymers which are soluble in organic solvents, wherein the emitted electroluminescence is polarized and the intensity of the light which is polarized parallel to the longitudinal axis of the substrate is at least three times the intensity polarized perpendicular thereto.
    Type: Grant
    Filed: September 18, 1997
    Date of Patent: March 21, 2000
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Donald Lupo, Marcus Remmers, Dieter Neher
  • Patent number: 6037062
    Abstract: A layered molding and method for making the same which has excellent anti-permeability to gasoline. The layered molding is defined by a fluoroplastic or polyamide plastic and an epichlorohydrin rubber. The fluoroplastic is a copolymer formed from at least two precursors selected from the group consisting of hexafluoropropylene, tetrafluoroethylene, and vinylidene fluoride, which are selected within a plotted range to preferably form a binary or tertiary composition. The epiclorohydrin rubber contains organic phosphonium. The resulting molding layer does not require an adhesive agent.
    Type: Grant
    Filed: February 28, 1997
    Date of Patent: March 14, 2000
    Assignee: Toyoda Gosei Co., Ltd.
    Inventors: Daisuke Tsutsumi, Atsushi Suzuki, Katsumasa Takeuchi, Masayoshi Ichikawa
  • Patent number: 6037024
    Abstract: A multi-layer thermoplastic packaging, the outer layer containing at least one filler having particles of different particle size and of a diameter .gtoreq.50 .mu.m, to give a natural stone external appearance and a process for the preparation thereof which includes coextrusion and blowing of the inner and outer layers, to provide the packaging which can be in the form of a flask, bottle, pot or other desired shape.
    Type: Grant
    Filed: October 13, 1995
    Date of Patent: March 14, 2000
    Assignee: L'Oreal
    Inventor: Jean-Louis Gueret
  • Patent number: 6033749
    Abstract: Disclosed herein is a fuel tank of multi-layer construction having good impact resistance as well as good barrier properties for gasoline, especially one containing methanol and MTBE.The fuel tank comprises (a) inner and outer layers of high-density polyethylene, (b) intermediate layers of adhesive resin, and (c) a core layer of ethylene-vinylalcohol copolymer, with said core layer (c) being shifted to the inside. For better performance, the layer (c) has a thickness which satisfies the formula below.0.005.ltoreq.A/B.ltoreq.0.13 (1)where A is the thickness of the layer (c), andB is the thickness of all the layers.The fuel tank is suitable especially for oxygen-containing gasoline.
    Type: Grant
    Filed: July 18, 1997
    Date of Patent: March 7, 2000
    Assignee: Kuraray Co., Ltd.
    Inventors: Nobuhiro Hata, Taichi Negi
  • Patent number: 6033747
    Abstract: A laminate including a base material and a copolymer consisting essentially of 3-hydroxybutyrate and 3-hydroxyhexanoate, the copolymer being laminated on at least one side of the base material. A wrapping material including the above laminate. A container made of the above laminate.
    Type: Grant
    Filed: October 28, 1997
    Date of Patent: March 7, 2000
    Assignee: Kaneka Corporation
    Inventor: Takeshi Shiotani
  • Patent number: 6030715
    Abstract: Organic light emitting devices are disclosed which are comprised of a heterostructure for producing electoluminescence wherein the heterostructure is comprised of an emissive layer containing a dopant compound selected from the class of azlactone-related compounds having the chemical structure as represented by formula I: ##STR1## where R is hydrogen or a donor or acceptor group relative to hydrogen; R'=alkyl or substituted or unsubstituted aryl;R.sub.1 and R.sub.2 are hydrogen or are joined to form a fused aryl ring;X is O; NR.sub.5, where R.sub.5 is hydrogen or substituted or unsubstituted alkyl; alkyl or substituted or unsubstituted aryl;Z.sub.1 and Z.sub.2 are, independently of one another, a carbon or nitrogen atom; andY is M, a metal atom, whenever Z.sub.1 and Z.sub.2 are both nitrogen atoms;Y is O; NR.sub.6, where R.sub.6 is hydrogen or substituted or unsubstituted alkyl; or S; whenever either Z.sub.1 or Z.sub.2 is a carbon atom; orY is absent.
    Type: Grant
    Filed: October 9, 1997
    Date of Patent: February 29, 2000
    Assignees: The University of Southern California, The Trustees of Princeton University
    Inventors: Mark Thompson, Yujian You, Nicos A. Petasis, Paul E. Burrows, Stephen R. Forrest
  • Patent number: 6030684
    Abstract: Electronic devices protected by an organic polymeric encapsulant and placed in a corrosive environment can have added protection by dispersing in the encapsulant particles of a solid buffer which tend to neutralize the effect of the corrosive agent. This approach is quite effective when strong acids are the corrosive agents, and when solid acid-base buffers are dispersed in the polymeric material. The encapsulant may be elastomeric, and silicone elastomers containing solid acid-base buffers are quite effective in protecting the underlying electronic device from corrosion by strong acids.
    Type: Grant
    Filed: June 20, 1997
    Date of Patent: February 29, 2000
    Assignee: Motorola, Inc.
    Inventors: Anthony J. Polak, Theresa L. Baker
  • Patent number: 6027775
    Abstract: Crystalline titania of which the crystal shape is a novel nanotube. This crystalline titania is produced by treating crystalline titania with an alkali. This crystalline titania is used as an ultraviolet absorber, a masking agent, an adsorbent and an optically active catalyst.
    Type: Grant
    Filed: September 25, 1997
    Date of Patent: February 22, 2000
    Assignee: Chubu Electric Power Co., Inc.
    Inventors: Tomoko Kasuga, Masayoshi Hiramatsu
  • Patent number: 6020078
    Abstract: An organic EL device, including an anode and a cathode, and at least one organic luminescent layer containing a compound of the formula: ##STR1## wherein: X=S, or OR.sub.1, and R.sub.2 are individually alkyl of from 1 to 20 carbon atoms, aryl or carbocyclic systems;R.sub.3, and R.sub.4 are individually alkyl of from 1 to 10 carbon atoms, or a branched or unbranched 5 or 6 member substituent ring connecting with R.sub.1, R.sub.2 respectively; andR.sub.5 and R.sub.6 are individually alkyl of from 1 to 20 carbon atoms, which are branched or unbranched.
    Type: Grant
    Filed: December 18, 1998
    Date of Patent: February 1, 2000
    Assignee: Eastman Kodak Company
    Inventors: Chin H. Chen, Ching W. Tang, Jianmin Shi, Kevin P. Klubek
  • Patent number: 6017644
    Abstract: A light emitting device is composed of a pair of electrodes and an organic compound layer interposed between the electrodes. In the organic compound layer is used a organic compound shown by the following formula (1): ##STR1## wherein R.sup.1 is a hydrogen atom, an alkyl group or a halogen atom, R.sup.2 is X--Ar.sup.1 ; X is NH, O or S, Ar.sup.1 is a substituted or unsubstituted aromatic ring having a partial structure shown by the following formula (2): ##STR2## or a substituted or unsubstituted heterocyclic ring; each of R.sup.3 and R.sup.4 is a hydrogen atom, an alkyl group, a substituted or unsubstituted aromatic ring, or a substituted or unsubstituted heterocyclic ring; each of R.sup.5 and R.sup.6 is a hydrogen atom, a halogen atom, an alkyl group, an aralkyl group, an alkoxy group, a substituted or unsubstituted aromatic ring, or a substituted or unsubstituted heterocyclic ring.
    Type: Grant
    Filed: September 11, 1998
    Date of Patent: January 25, 2000
    Assignee: Canon Kabushiki Kaisha
    Inventors: Yomishi Toshida, Akihiro Senoo, Kazunori Ueno, Seiji Mashimo
  • Patent number: 6017483
    Abstract: An injection molding method for forming an article having a receptacle with a coating on an interior surface includes providing an injection molding tool with at least one cavity in one part and at least one core pin projecting from a second part having an outside surface. The core pin is sized to fit within the cavity with a clearance thereby defining a cavity space. The injection molding tool has an open position wherein the core pin is withdrawn from the cavity and a closed position wherein the core pin is disposed within the cavity for defining the cavity space. The method further sequentially then includes moving the injection molding tool to the open position and applying a coating of a coating material to the outside surface of the core pin. The method further includes moving the injection molding tool to the closed position.
    Type: Grant
    Filed: July 18, 1997
    Date of Patent: January 25, 2000
    Assignee: Becton Dickinson and Company
    Inventor: Fu-Chung Lin
  • Patent number: 6013384
    Abstract: An organic electroluminescent (EL) device includes at least one luminescent layer having an organic compound doped with a metal capable of acting as a donor dopant, in adjacent to a cathode electrode. The EL device ensures a diminished energy barrier in an electron injection from the cathode electrode into the luminescent layer, i.e., metal-doped organic compound layer, and thus a lowered driving voltage. The lowered driving voltage can be obtained regardless of the work function of the cathode material.
    Type: Grant
    Filed: January 22, 1998
    Date of Patent: January 11, 2000
    Assignees: Junji Kido, International Manufacturing and Engineering Services Co., Ltd.
    Inventors: Junji Kido, Tokio Mizukami
  • Patent number: 6013337
    Abstract: The present invention is a plastic container coated with a multi-layer barrier coating. The multi-layer barrier coating is useful for providing an effective barrier against gas permeability in containers and for extending shelf-life of containers, especially plastic evacuated blood collection devices.
    Type: Grant
    Filed: March 25, 1997
    Date of Patent: January 11, 2000
    Assignee: Becton Dickinson and Company
    Inventor: Christopher John Knors