Patents Represented by Law Firm Oblon, Fisher, Spivak, McClelland & Maier
  • Process for producing biaxially stretched polyparaphenylene sulfide film
    Patent number: 4839129
    Abstract: Disclosed herein is a process for producing biaxially stretched polyparaphenylene sulfide film including the steps of melt-molding a polyparaphenylene sulfide resin into a sheet-form or film-form, rapidly chilling the thus molded sheet or film thereby obtaining an amorphous and non-stretched sheet or film, subjecting the amorphous and non-stretched sheet or film to thermal treatment for from 0.5 to 20 sec at a temperature of from 150.degree. to 300.degree. C., cooling the thus treated film or sheet to room temperature and subjecting the thus cooled film or sheet to biaxial stretching at a temperature of from 80.degree. to 120.degree. C.
    Type: Grant
    Filed: July 6, 1988
    Date of Patent: June 13, 1989
    Assignee: Kureha Kagaku Kogyo Kabushiki Kaisha
    Inventors: Toshiya Mizuno, Hideyuki Yasumi, Satoru Matsunaga
  • Magnetic deflector for trichromatic tube with shield and method to set this deflector
    Patent number: 4839568
    Abstract: A magnetic deflector of the saddle-saddle type, for a trichromatic tube protected by a shield, with in-line guns and round-luminophor type screen, is designed to function with a saddle-torus type of magnetic deflector. The invention uses a saddle-saddle type of deflector in which the front leading-out wires have been reduced and the rear leading-out wires are laid flat. Furthermore, the ferrite piece is extended by a ring which surrounds the rear leading-out wires and is magneticlaly closed by a ferrite ring bearing a quadrupole coil powered by a parabolic current. The intention can be applied to round-luminiphor trichromatic tubes fitted with an external shield.
    Type: Grant
    Filed: September 28, 1987
    Date of Patent: June 13, 1989
    Assignee: Videocolor
    Inventors: Alain Dumesnil, Jean-Marc Perreaut
  • Developing composition and a sheet for pressure-sensitive copy paper
    Patent number: 4839457
    Abstract: A developing composition and a sheet for a pressure-sensitive copy paper comprising a phenolic resin as a main component which is obtained by condensating with formaldehyde using a p-substituted phenol with a 2,4-di-substituted and/or 2,6-di-substituted phenol, and zinc oxide which may be added thereto, as occasion demands.
    Type: Grant
    Filed: March 18, 1988
    Date of Patent: June 13, 1989
    Assignee: Mitsubishi Petrochemical Co., Ltd.
    Inventors: Kazuhide Hayama, Yukio Saitoh
  • Device for transmission of an electric signal from a device for monitoring a driving wheel on a vehicle
    Patent number: 4837553
    Abstract: The transmission of an electric signal between a driving wheel and the vehicle exclusively by electric conduction requires the presence of two electrically conductive paths. One of the conductive paths includes suspended stationary elements and a bearing of the driving wheel. The end of the transmission is insulated from the ground and the part of the transmission not insulated from the ground is included in the other of the conductive paths.
    Type: Grant
    Filed: October 22, 1987
    Date of Patent: June 6, 1989
    Assignee: Michelin & Cie
    Inventor: Jean-Pierre Pompier
  • Magnetic recording powder, method of manufacturing thereof and application thereof
    Patent number: 4837092
    Abstract: A magnetic recording powder comprising a hexagonal barium ferrite substituted with a coercive force control element. This magnetic powder is preliminarily treated with sulfate ion-containing water so as to convert any free barium ions in the magnetic powder to a water insoluble compound such as BaSO.sub.4 or BaS.sub.2 O.sub.7. There is also proposed a magnetic recording medium having a magnetic layer containing such a magnetic powder as mentioned above.
    Type: Grant
    Filed: August 12, 1987
    Date of Patent: June 6, 1989
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Hirotaka Yokoyama, Tadashi Ido, Tatsumi Maeda, Shunji Kurisu
  • Transportable hopper and tank assembly
    Patent number: 4836421
    Abstract: A transportable hopper and tank positionable in an upright or a reclined position, which includes a tank side wall, a cover body located at a top end portion of the side wall when the tank is in the upright position, a discharging port formed in a lower portion of the tank in the upright position and having an area smaller than the cover body, and a discharge valve located adjacent the discharging port wherein the side wall includes an upper and lower vertical side wall and a second lower side wall positioned opposite the lower vertical side wall wherein the second lower side wall converges downwardly toward the lower vertical side wall when the tank is in the upright position.
    Type: Grant
    Filed: August 31, 1988
    Date of Patent: June 6, 1989
    Assignee: ISE Kaguku Kogyo Kabushiki Gaisha
    Inventors: Masazumi Miyoshi, Muneo Isayama, Shoichi Midorikawa, Akitada Ota
  • Monoclonal antibody, measuring method of glucosylated protein by utilizing the monoclonal antibody, and kit therefor
    Patent number: 4837170
    Abstract: For the diagnosis of diabetes, a glucosylated protein in a sample is measured by subjecting the sample to a reducing treatment and then detecting a compound, which contains one or more reduced glucosylated lysine residual groups, in accordance with an immunoassay technique in which the reduced glucosylated lysine residual groups are used as an epitope.
    Type: Grant
    Filed: January 14, 1987
    Date of Patent: June 6, 1989
    Assignee: Otsuka Pharmaceutical Co., Ltd.
    Inventors: Yasuo Ohe, Makiko Matsuura, Fumio Shimizu, Yoshito Nakajima, Shin Sadahito, Kenji Shima
  • Optically active bicyclo carboxylic acids and their derivatives
    Patent number: 4837344
    Abstract: A compound having the formula: ##STR1## wherein R is a hydroxyl-protecting group, X is a hydrogen atom, CO.sub.2 R' (wherein R' is a hydrogen atom or an alkyl group having from 1 to 7 carbon atoms, or CO.sub.2 R' is a salt of CO.sub.2 H), or a group of the formula: ##STR2## and when X is a hydrogen atom, Y is CO.sub.2 R' (wherein R' is as defined above) or a group of the formula: ##STR3## and when X is CO.sub.2 R' or the group of the formula (i), Y is a hydrogen atom.
    Type: Grant
    Filed: June 17, 1987
    Date of Patent: June 6, 1989
    Assignee: Nissan Chemical Industries Ltd.
    Inventors: Katsuaki Miyaji, Kazutaka Arai, Yoshio Ohara, Yasuhiro Takahashi
  • Rasterization system for converting polygonal pattern data into a bit-map
    Patent number: 4837447
    Abstract: A real-time rasterization system for converting plural polygonal pattern data into respective bits of a two-dimensional bit-map, wherein the respective bits of the bit-map and the locations thereof within the bit-map correspond to the shapes and locations of the polygons in a two-dimensional field and wherein the bit-map is divided into plural data stripes, each including plural scan lines having plural bits.
    Type: Grant
    Filed: May 6, 1986
    Date of Patent: June 6, 1989
    Assignee: Research Triangle Institute, Inc.
    Inventors: John L. Pierce, Nick Kanopoulos
  • Process for the hydrolytic preparation of a prepolymer amide from a C.sub.12 -aminocarboxylic acid lactam
    Patent number: 4837297
    Abstract: A process for the preparation of a prepolymer amide, by hydrolytically polymerizing a lactam/water mixture of a C.sub.12 -aminocarboxylic acid lactam at a temperature in the range from 240-360.degree. C. and a steam pressure in the range of 30-180 bar, and wherein the water content of the lactam/water mixture is in the range of 7.5-30% by weight.
    Type: Grant
    Filed: June 5, 1987
    Date of Patent: June 6, 1989
    Assignee: Huels Aktiengesellschaft
    Inventors: Klaus-Rudolf Meyer, Ingo Venn, Ursula Mueller-Niescher
  • Prostaglandins
    Patent number: 4837234
    Abstract: Novel compounds have a formula (I) ##STR1## wherein ##STR2## represents a bicyclo [2,2,1] hept-2Z-ene, bicyclo [2,2,1] heptane, 7-oxa-bicyclo [2,2,1] hept-2Z-ene, 7-oxa-bicyclo [2,2,1] heptane, bicyclo [2,2,2] oct-2Z-ene or bicyclo [2,2,2] octane substituted at the 5-position by the group R.sup.1 and at the 6-position by the group ANR.sup.2 R, a 6,6-dimethyl-bicyclo [3,1,1] heptane substituted at the 2-position by the group R.sup.1 and at the 3-position by the group ANR.sup.2 R or at the 2-position by the group ANR.sup.2 R and at the 3-position by the group R.sup.1, a cyclohex-1-ene or cyclohexane substituted at the 4-position by the group R.sup.1 and at the 5-position by the group ANR.sup.2 R or a 1-hydroxycyclopentane substituted at the 2-position by the group R.sup.1 and at the 2-position by the group ANR.sup.2 R, R.sup.
    Type: Grant
    Filed: July 22, 1986
    Date of Patent: June 6, 1989
    Assignee: National Research Development Corporation
    Inventors: Robert L. Jones, Norman H. Wilson
  • 2-aminothiophene radical substituted by an electron withdrawing group
    Patent number: 4837269
    Abstract: Disazothiphene dyes of the formula ##STR1## where X is an electron withdrawing group, Z is an electron withdrawing group, D is the radical of a diazo component and K is the radical of a coupling component, are highly suitable for dyeing synthetic fibers, in particular polyesters.
    Type: Grant
    Filed: June 30, 1987
    Date of Patent: June 6, 1989
    Assignee: BASF Aktiengesellschaft
    Inventors: Karl-Heinz Etzbach, Guenter Hansen, Ernst Schefczik, Helmut Reichelt
  • Preparation of sulfatobetaines
    Patent number: 4837330
    Abstract: Sulfatobetaines are prepared by reacting an adduct of a base having a tertiary N atom and sulfur trioxide with an alkylene oxide in the presence of an alkylene carbonate as a solvent.
    Type: Grant
    Filed: March 15, 1988
    Date of Patent: June 6, 1989
    Assignee: BASF Aktiengesellschaft
    Inventors: Gerold Braun, Chung-Ji Tschang, Christos Vamvakaris, Klaus Glaser
  • Magnetic recording medium and recording/reproducing method therefor
    Patent number: 4837116
    Abstract: A magnetic recording medium comprising a ferromagnetic metal thin film layer primarily based on cobalt and formed on the surface of a flexible substrate, an organic topcoat layer containing a radiation curable compound having a molecular weight of less than 2,000, an anti-oxidant, and a lubricant on the surface of the metal thin film layer, and a backcoat layer containing an inorganic pigment, an organic binder, and a lubricant on the other surface of the substrate is provided with protrusions on its surface at an average density of at least 10.sup.5 /a.sup.2 per square millimeter of the surface, the protrusions having a height of 30 to 300 .ANG., where a is the distance of a gap in a magnetic head with which the medium is used in recording/reproducing operation.
    Type: Grant
    Filed: December 2, 1987
    Date of Patent: June 6, 1989
    Assignee: TDK Corporation
    Inventors: Hiroyuki Arioka, Masaharu Nishimatsu, Suguru Takayama
  • Heat-sensitive recording medium
    Patent number: 4837198
    Abstract: A heat-sensitive recording medium is composed of a base sheet, a heat-sensitive recording layer provided on one side of the base sheet and a heat-resistant layer provided on the other side of the base sheet. The heat-resistant layer is made of a film-forming resin modified with a modifier, which is a reaction product of a fluorine compound containing at least one reactive organic functional group and an organic polyisocyanate.
    Type: Grant
    Filed: August 27, 1987
    Date of Patent: June 6, 1989
    Assignees: Dainichiseika Color & Chemicals Mfg. Co., Ltd., Ukima Colour & Chemiclas Mfg. Co., Ltd.
    Inventors: Katsumi Kuriyama, Kazuyuki Hanada, Susumu Nakamura, Iwao Misaizu, Masashi Kashimura, Tomoko Goto
  • Wholly aromatic polyester
    Patent number: 4837268
    Abstract: A molded product prepared by injection molding a wholly aromatic thermotropic liquid crystal polyester consisting of 4-oxybenzoil moiety, terephthaloyl moiety and 4,4'-dioxydiphenyl ether moiety is characterized in high impact strength, small mechanical anisotropy and excellent resistance to heat. The thermotropic liquid crystal polyester gives, by blending therewith a known thermotropic liquid crystal polyester, a composition which can yield a formed product having a superior strength and a relatively small elastic modulus.
    Type: Grant
    Filed: December 18, 1987
    Date of Patent: June 6, 1989
    Assignee: Kuraray Company, Ltd.
    Inventors: Mitsuo Matsumoto, Teruhisa Kaneda
  • Information display medium
    Patent number: 4837071
    Abstract: An information display medium includes as a main component a thermosensitive material layer which can reversibly repeat turbid and transparent conditions by being heated to different temperatures and can keep one of such conditions stably below a particular temperature, one of the turbid and transparent conditions being selectable by a print head. The information display medium further includes a substrate layer combined with the thermosensitive material layer, and another layer, at least one of the thermosensitive material layer, the substrate layer, the other layer, and a background panel for use with the information display medium having a regular pattern such as a stripe or a matrix in a plane thereof, and being colored in at least two colors in the pattern for color display.
    Type: Grant
    Filed: November 24, 1987
    Date of Patent: June 6, 1989
    Assignee: Ricoh Company, Ltd.
    Inventors: Izumi Tagoku, Harumitsu Mashiko
  • Device for the connection of optic fibers to an integrated optic circuit and method for making the said device
    Patent number: 4836645
    Abstract: A connecting device is disclosed wherein an end of a fiber is joined to a connecting block which has one side polished and is bonded to a side, also polished, of an integrated optic circuit. The connecting block further has another side, inclined with respect to the its first side, making it possible to illuminate the side of the connecting block and to observe the image of the interference fringes sent back by the interface between the connecting block and the integrated optic circuit. According to the method of the invention, the connecting block is positioned by observing the previous image, and the bonding is then made.
    Type: Grant
    Filed: December 18, 1987
    Date of Patent: June 6, 1989
    Assignee: Thomson-CSF
    Inventors: Herve Lefevre, Sambath Bann
  • Method of producing heat treating furnace member
    Patent number: 4836965
    Abstract: A method of producing a high density and high strength silicon carbide member for a heat treatment furnace to be used in the manufacture of a semiconductor device. In this method, SiC powder, carbon powder, deflocculating agent and water are mixed to form a slip. Then the slip is formed into a desired shape, cured under a nonoxidizing atmosphere, and removed of any impurity contained in the shaped body. Finally, the shaped body is immersed in a molten silicon to convert the carbon in the shaped body into silicon carbide.
    Type: Grant
    Filed: September 8, 1987
    Date of Patent: June 6, 1989
    Assignee: Toshiba Ceramics Co., Ltd.
    Inventors: Kenro Hayashi, Takashi Tanaka
  • Impervious shelter made of modules
    Patent number: 4835919
    Abstract: An impervious shelter is made of tube-shaped modules fitted end to end. The invention pertains more especially to the junction between the facing ends of the modules. Each module has an outer shell covered on the inside by a metal sheet. At the facing ends of two modules, the metal sheets are prolonged by collars which fit into one another. At least one of the collars has a grooved and flexible part which can change shape without breaking when the shelter is subjected to external stresses.
    Type: Grant
    Filed: November 2, 1987
    Date of Patent: June 6, 1989
    Assignee: Societe Gerac
    Inventor: Solly Side