Patents Examined by Charles Nold
  • Patent number: 5968675
    Abstract: A hole-transporting material having excellent hole transportation capability and sufficient durability, used in an organic EL device and an electrophotographic photoreceptor, the hole-transporting material having the general formula specified in claim 1.
    Type: Grant
    Filed: May 28, 1998
    Date of Patent: October 19, 1999
    Assignee: Toyo Ink Manufacturing Co., Ltd.
    Inventors: Michiko Tamano, Satoshi Okutsu, Toshio Enokida
  • Patent number: 5968620
    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: October 22, 1997
    Date of Patent: October 19, 1999
    Assignee: Becton Dickinson and Company
    Inventors: Noel G. Harvey, Yelena G. Tropsha, Susan L. Burkett, Richard P. Clarke, Bryan Soo Wong
  • Patent number: 5965281
    Abstract: The addition of a highly polarizable additive such as an organic anionic surfactant to an electrically active polymer improves the electrical properties of the polymer. When such an additive is added to an electroluminescent organic polymer this mixture can be used in diodes having an anode contacting a layer of this mixture as the active light-emitting layer and an air-stable metal cathode having a work function larger than 4 eV. The external efficiency and brightness versus voltage are significantly improved compared to results obtained with the same electroluminescent polymer used alone with high work function (>4.0 eV) metal cathodes.
    Type: Grant
    Filed: July 3, 1997
    Date of Patent: October 12, 1999
    Assignee: Uniax Corporation
    Inventor: Yong Cao
  • Patent number: 5958609
    Abstract: An organic electroluminescence device which has a pair of electrodes, at least one of which is transparent or semitransparent, and at least one organic layer formed between the electrodes. The organic layer contains a hole transporting material and a light emitting material in the same or different layer. The hole transporting material contains at least one polysilane whose main chain skeleton is composed of a repeating unit represented by the general formula (1) and a repeating unit represented by the general formula (2): ##STR1## wherein R.sub.1, R.sub.2, R.sub.3 and R.sub.4 independently represent a substituted or unsubstituted alkyl group, a substituted or unsubstituted cycloalkyl group, a substituted or unsubstituted aryl group or a substituted or unsubstituted aralkyl group, Ar.sub.1 represents a substituted or unsubstituted arylene group and Ar.sub.2 represents a substituted or unsubstituted aryl group. The polysilane satisfies the expression 0.2.ltoreq.z.ltoreq.
    Type: Grant
    Filed: January 22, 1997
    Date of Patent: September 28, 1999
    Assignee: Sumitomo Chemical Co., Ltd.
    Inventors: Masato Ueda, Fumi Yamaguchi
  • Patent number: 5958531
    Abstract: A peelable and heat sealable lidstock material for steel end containers. The container of the invention is suitable for holding various foods, including instant coffee, powdered baby formula and soup mixes. The lidstock material includes a film containing an ethylene-carboxylic acid copolymer, polybutylene and a particulate inorganic filler.
    Type: Grant
    Filed: November 25, 1997
    Date of Patent: September 28, 1999
    Assignee: Aluminum Company of America
    Inventor: James A. Stevenson
  • Patent number: 5955161
    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: January 30, 1996
    Date of Patent: September 21, 1999
    Assignee: Becton Dickinson and Company
    Inventor: Yelena G. Tropsha
  • Patent number: 5955209
    Abstract: The thin-film electroluminescent device of the present invention comprises a thin film of a polyoxadiazole derivative represented by the formula: ##STR1## wherein each of X.sub.0 and Y.sub.0 independently represents a divalent organic group which may comprise a silicon atom, and n is an integer of 2 or greater,formed as an electroluminescent layer or a charge injecting/transporting layer between electrodes, at least one thereof being transparent. This thin-film electroluminescent device is excellent not only in electroluminescence and capability of charge injection/transport to thereby ensure high light emission efficiency but also in durability such as heat resistance.
    Type: Grant
    Filed: May 6, 1996
    Date of Patent: September 21, 1999
    Assignee: Mitsui Petrochemical Industries, Ltd.
    Inventors: Hideyuki Murata, Takahiro Fujiyama, Shogo Saito, Tetsuo Tsutsui, Tooru Yamanaka
  • Patent number: 5955159
    Abstract: A shoe that conforms to foot contours and provides cushioning is comprised of a shoe sole and a shoe upper attached to the shoe sole. The shoe upper is comprised of an outer layer, an inner layer and a conforming layer therebetween, wherein a first portion of the conforming layer is comprised of environmentally-responsive gel. The environmentally-responsive gel is a temperature-responsive gel that will react to the heat emanating from a foot inserted into the shoe to express a liquid.
    Type: Grant
    Filed: October 27, 1995
    Date of Patent: September 21, 1999
    Assignee: Acushnet Company
    Inventors: Bernie Allen, Zoran Petrovic, Ivan Javni, Neil M. Goldman
  • Patent number: 5955160
    Abstract: Each base for fusing a snap-zipper male member and a snap-zipper female member, which form a snap zipper, onto a bag body is formed from a mixture of polypropylene and an ethylene copolymer obtained by copolymerizing ethylene and an .alpha.-olefin having a carbon atom ratio of 3 to 20, in which the ethylene copolymer has a weight average molecular weight/number average molecular weight of less than 3, density in the range from 0.850 g/cm.sup.3 to 0.935 g/cm.sup.3, melt index in the range from 0.3 g/10 min. to 15 g/10 min., and range of number of branching dependent on molecular weight of 0-5 branches/1,000 carbon. A bag with the snap zipper is structured to fuse the snap zipper through the bases onto the bag body.
    Type: Grant
    Filed: June 13, 1997
    Date of Patent: September 21, 1999
    Assignee: Idemitsu Petrochemical Co., Ltd.
    Inventors: Kenichi Tanaka, Masao Takashige, Yoshikazu Shirai
  • Patent number: 5955163
    Abstract: A gasket for a crown cap to be used on a carbonated beverage, especially a twist-off crown or for a bottle which is to be pasteurized, is formed of a thermoplastic material, which is preferably free of polyvinyl chloride, and which contains a hydrogenated copolymer of styrene and a conjugated diene, or a functionalized derivative thereof. The material is resistant to heat, and provides a gasket with advantageous sealing properties.
    Type: Grant
    Filed: October 28, 1996
    Date of Patent: September 21, 1999
    Assignee: W.R. Grace & Co.-Conn.
    Inventor: Steven Andrew Carl White
  • Patent number: 5955210
    Abstract: In an EL device in which a blue light emitting material obtained by doping Ce as a luminescent center into Ca.sub.X S.sub.Y host material is used for a luminescent layer, values of X and Y in the CaGa.sub.X S.sub.Y host material are set in ranges of 1.4.ltoreq.X.ltoreq.1.9, 2.9.ltoreq.Y.ltoreq.3.8. The blue light emitting material thus obtained has a new structure defined by the fact that an X-ray diffraction spectrum obtained by using Cu K.alpha. radiation as a X-ray source has at least one peak in diffraction angles of 13.5.+-.0.2 degrees, 14.6.+-.0.2 degrees and 25.7.+-.0.2 degrees. The blue light emitting EL device has a luminance higher than that of a conventional EL device.
    Type: Grant
    Filed: June 26, 1997
    Date of Patent: September 21, 1999
    Assignee: Denso Corporation
    Inventors: Masayuki Katayama, Akira Kato, Atsushi Mizutani, Nobuei Ito, Tadashi Hattori
  • Patent number: 5952066
    Abstract: A substantially transparent package or preform made of a polymer composition including an aliphatic polyketone as an oxygen scavenger having the formula ##STR1## where n is the number of repeating units and R is hydrogen, an organic side chain, or a silicon side chain. The aliphatic polyketone may be advantageously combined with other thermoplastic polymers to provide the desired injection molding and stretch blow molding characteristics for making substantially amorphous injection molded preforms and substantially transparent biaxially oriented polyester containers. A multilayer container package may be provided having a core layer of the oxygen scavenging composition, and inner and outer layers of polyethylene terephthalate (PET). The container may further include layers of a high-oxygen barrier polymer such as ethylene vinyl alcohol (EVOH).
    Type: Grant
    Filed: October 28, 1997
    Date of Patent: September 14, 1999
    Assignee: Continental PET Technologies, Inc.
    Inventors: Steven L. Schmidt, Wayne N. Collette, Ernest A. Coleman, Suppayan M. Krishnakumar
  • Patent number: 5952069
    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: June 18, 1997
    Date of Patent: September 14, 1999
    Assignee: Becton, Dickinson and Company
    Inventors: Yelena G. Tropsha, Christopher J. Knors, Susan L. Burkett, Bryan Soo Wong
  • Patent number: 5945187
    Abstract: A medicaments, container for storing a liquid medicament comprising one or more active medicaments, water and at least one preservative has a preferably cylindrical wall defining an interior space for such liquid medicament. The wall includes at least two opposed portions composed of a polymer material with a thickness of between 0.3 mm and 3 mm, a light transmission at 400 nm of 25% or more measured through the opposed container wall portions when the container is filled with water, using a standard spectrophotometer and air as reference. The polymer wall portions are of a material comprising at least 70% by weight of a linear optionally branched polyolefin material, the olefin monomer being selected from ethylene, propylene, butylene or a mixture thereof The polyolefin material has a crystallinity above 35% by weight, measured by differential scanning calorimetry, by cutting pieces from the container walls and heating them in an aluminum pan from 10.degree. C. to 270.degree. C. at the scanning rate of 10.
    Type: Grant
    Filed: December 16, 1997
    Date of Patent: August 31, 1999
    Assignee: Novo Nordisk A/S
    Inventors: Thomas Buch-Rasmussen, Patric Jannasch, Erling Bonne J.o slashed.rgensen
  • Patent number: 5942295
    Abstract: A laminate structure for containers produced using product contact materials including polyethylene isophthalate, poly(1,4-cyclohexanyl dimethylene terephthalate) and blends thereof. The unique paperboard structure provides cost savings and high temperature end-use performance required in dual-ovenable containers.
    Type: Grant
    Filed: October 1, 1997
    Date of Patent: August 24, 1999
    Assignee: International Paper Co.
    Inventors: Ashok M. Adur, Thomas Z. Fu, Jongsoo Lee
  • Patent number: 5939157
    Abstract: A shoe that conforms to foot contours and provides cushioning is comprised of a shoe sole and a shoe upper attached to the shoe sole. The shoe upper is comprised of an outer layer, an inner layer and a conforming layer therebetween, wherein a first portion of the conforming layer is comprised of environmentally-responsive gel. The environmentally-responsive gel is a temperature-responsive gel that will react to the heat emanating from a foot inserted into the shoe to express a liquid.
    Type: Grant
    Filed: October 30, 1995
    Date of Patent: August 17, 1999
    Assignee: Acushnet Company
    Inventors: Bernie Allen, Neil M. Goldman
  • Patent number: 5935720
    Abstract: An organic EL device, includes an anode and a cathode, and at least one organic luminescent medium containing a compound of the formula: ##STR1## wherein: R.sub.1, and R.sub.2 are individually alkyl of from 1 to 20 carbon atoms, aryl, carbocyclic and other heterocyclic systems; andR.sub.3, and R.sub.4 are individually alkyl of from 1 to 10 carbon atoms, and a branched or unbranched 5 or 6 member substituent ring connecting with R.sub.1, R.sub.2 respectively; andR.sub.5 is alkyl of from 2-20 carbon atoms; sterically hindered aryl and heteroaryl; andR.sub.6 is alkyl of from 1 to 10 carbon atoms, and a 5 or 6-member carbocyclic ring connecting with R.sub.5.
    Type: Grant
    Filed: April 7, 1997
    Date of Patent: August 10, 1999
    Assignee: Eastman Kodak Company
    Inventors: Chin H. Chen, Ching W. Tang, Jianmin Shi
  • Patent number: 5932362
    Abstract: An organic electroluminescent element having an anode, a cathode, and an organic compound layer provided between the electrodes, the organic compound layer containing an oxadiazole compound of formula (I) or (II): ##STR1## wherein A.sup.1 to A.sup.6 are each an aromatic hydrocarbon group or an aromatic heterocyclic group which may have a substituent; X is a hydrogen atom or a fluorine atom; R.sup.1 and R.sup.2 are each a hydrogen atom, a halogen atom, or an alkyl group which may have a substituent, or an alkoxyl group which may have a substituent; and R.sup.3, R.sup.4 and R.sup.5 are each a hydrogen atom, a halogen atom, an alkyl group which may have a substituent, an alkoxyl group which may have a substituent, or hydroxyl group.
    Type: Grant
    Filed: September 8, 1997
    Date of Patent: August 3, 1999
    Assignee: Ricoh Company, Ltd.
    Inventors: Kazukiyo Nagai, Chihaya Adachi, Nozomu Tamoto, Yohta Sakon
  • Patent number: 5928802
    Abstract: An organic EL device, includes an anode, cathode, and at least one organic luminescent layer including a compound of the formula: ##STR1## where: n is an integer of 2 or 3;M is a divalent metal or a trivalent metal;G is a substituted or unsubstituted aryl group or a substituted or unsubstituted heteroaryl group, both the aryl and the heteroaryl groups having 6 to 24 carbon atoms, wherein the substituted aryl or heteroaryl group is an alkyl, haloalkyl group having 1-8 carbon atoms, an alkoxy or haloalkoxy group having 1-18 carbon atoms, halogen, cyano, amino, amido, sulfonyl, carbonyl, aryl, or heteroaryl;R.sup.1 and R.sup.2 are individually hydrogen, an alkyl or haloalkyl group having 1-18 carbon atoms, halogen, cyano, amono, amido, sulfonyl, carbonyl, and 5-24 atoms necessary to complete a fused aromatic ring.
    Type: Grant
    Filed: May 16, 1997
    Date of Patent: July 27, 1999
    Assignee: Eastman Kodak Company
    Inventors: Jianmin Shi, Chin H. Chen
  • Patent number: 5928801
    Abstract: An illumination system has an active layer which includes an electroluminescent material, the active layer being located between an optically transparent electrode layer and a reflective electrode layer. A reflective polarizer is present at a side of the transparent electrode layer facing away from the active layer. A sub-beam incident on the polarizer and having an unwanted polarization is reflected back to the active layer, where it is again partially depolarized to recover a component having the desired state of polarization. The invention also relates to a flat-panel picture display device which includes such an illumination system.
    Type: Grant
    Filed: September 24, 1996
    Date of Patent: July 27, 1999
    Assignee: U.S. Philips Corporation
    Inventors: Dirk J. Broer, David B. Braun, Antonius H.J. Venhuizen, Christianne R.M. De Witz