Patents Represented by Attorney, Agent or Law Firm Oblon, Spivak, McLelland, Maier & Neustadt, P.C.
  • Patent number: 7180642
    Abstract: An imaging lens comprises a first, a second, a third, and a fourth lens group from an object toward an image. The first lens group includes a first lens that is a convex meniscus lens with a convex surface on the object side. The second lens group includes a second lens having a positive refractive power, and a third lens bonded to the second lens and having a negative refractive power. The third lens group includes a fourth lens having a negative refractive power, and a fifth lens bonded to the fourth lens and having a positive refractive power. The fourth lens group includes a sixth lens having a positive refractive power. The imaging lens satisfies the condition 0.10<D/f<0.19 where D denotes a sum of an air gap between the first lens and the second lens and an air gap between the fifth lens and the sixth lens, and f denotes a focal length of the entirety of the imaging lens with respect to an e-ray.
    Type: Grant
    Filed: May 7, 2002
    Date of Patent: February 20, 2007
    Assignee: Ricoh Company, Ltd.
    Inventor: Naoki Miyatake
  • Patent number: 6921958
    Abstract: A semiconductor device which IGBT (Z1) and a control circuit (B1) for driving the IGBT (Z1) are formed on the same semiconductor substrate by using a junction isolation technology, includes an input terminal (P1) for inputting a drive signal of the IGBT (Z1), a Schottky barrier diode (D2) having an anode connected to the input terminal (P1) and a cathode connected to an input terminal (B11) of the control circuit (B1), and a p-channel MOSFET (T1) for shorting both ends of the Schottky barrier diode (D2) when the voltage of the drive signal input to the input terminal (P1) is higher than a predetermined voltage, thereby latch-up of the parasitic element is prevented and a transmission loss of the input signal can be reduced.
    Type: Grant
    Filed: October 21, 2003
    Date of Patent: July 26, 2005
    Assignee: Mitsubishi Denki Kabushiki Kaisha
    Inventor: Yukio Yasuda
  • Patent number: 6316473
    Abstract: Provided is a medicinal composition having a very satisfactory drug release profile and a very satisfactory drug absorption profile after oral administration characterized by its comprising an insoluble drug and two or more surfactants, at least one of the surfactants having as dissolved therein the insoluble drug and the other surfactant or surfactants.
    Type: Grant
    Filed: October 12, 1999
    Date of Patent: November 13, 2001
    Assignee: Fujisawa Pharmaceutical Co., Ltd.
    Inventors: Fumio Shimojo, Sumihisa Kimura, Takeo Hirose, Satoshi Ueda, Rinta Ibuki, Norio Ohnishi
  • Patent number: 6288256
    Abstract: An aqueous organopolysiloxane-containing composition comprising organopolysiloxanes of formula I: HO [Si(A)(CH3)z(OH)1−zO]a[Si(B)(R2)y(OH)1−yO]b[Si(C)(CH3)O]c[Si(D)(OH)O]dH.
    Type: Grant
    Filed: January 12, 1999
    Date of Patent: September 11, 2001
    Assignee: Degussa-Huels Aktiengesellschaft
    Inventors: Burkhard Standke, Roland Edelmann, Albert-Johannes Frings, Michael Horn, Peter Jenkner, Ralf Laven, Helmut Mack, Jaroslaw Monkiewicz
  • Patent number: 6265351
    Abstract: The invention relates to phenylpyrazoles having general formula (I): The compounds having formula (I) have a high herbicidal activity and are used for controlling weeds in the agronomic field.
    Type: Grant
    Filed: August 3, 2000
    Date of Patent: July 24, 2001
    Assignee: Isagro Ricerca S.r.L.
    Inventors: Piero La Porta, Franco Bettarini, Giovanni Meazza, Gregorio Valea, Ernesto Signorini, Domenico Portoso
  • Patent number: 6232568
    Abstract: A current interrupting apparatus including a battery terminal adapted to be attached to a battery, a load conductor wire adapted to be connected to a load, a connecting member electrically connecting the load conductor wire and the battery terminal, and a cutting device configured to cut the connecting member when an interruption control signal is input thereto. The cutting of the connecting member by the cutting device interrupts the supply of electric current from the battery to the load by way of the battery terminal and the load conductor wire.
    Type: Grant
    Filed: June 7, 1999
    Date of Patent: May 15, 2001
    Assignee: Yazaki Corporation
    Inventors: Tetsuya Hasegawa, Noboru Yamaguchi
  • Patent number: 6232248
    Abstract: An insulating film consisting of first and second tantalum oxide layers is formed on a semiconductor wafer. First, an amorphous first layer is formed by CVD, and a reforming process for removing organic impurities contained in the first layer is carried out. Then, an amorphous second layer is formed by CVD on the first layer. Then, a reforming process for removing organic impurities contained in the second layer is carried out by supplying a process gas containing ozone into a process chamber while heating the wafer to a temperature lower than a crystallizing temperature over a certain period. Further, within the same process chamber, the wafer is successively heated to a second temperature higher than the crystallizing temperature, followed by cooling the wafer to a temperature lower than the crystallizing temperature so as to crystallize the first and second layers simultaneously.
    Type: Grant
    Filed: June 18, 1999
    Date of Patent: May 15, 2001
    Assignee: Tokyo Electron Limited
    Inventors: Hiroshi Shinriki, Masahito Sugiura
  • Patent number: 6192572
    Abstract: A high speed machining machine-tool including a mechanical module having a machining station and a driving station and an equipment module with “n” number different parts located up line. The module bases are connected to a common supporting frame, with the mechanical module being fixedly connected thereto. The equipment module is connected to the machine so as to slide on its longitudinal axis. The different mobile parts of the machine-tool adopt two positions: a first, so-called “folded” position, in which the equipment module and all its parts engage each other and the mechanical module; a second, so-called “extended” position, in which the whole equipment module or a subset of its component parts have slid on the supporting frame towards the rear so as to form a transversal handling passage running through and through the machine. The invention is useful for high speed machining.
    Type: Grant
    Filed: May 27, 1999
    Date of Patent: February 27, 2001
    Assignee: Renault Automation
    Inventor: André Azema
  • Patent number: 6141392
    Abstract: A receive antenna selection method and a diversity receive capable of preventing a deterioration in transmission efficiency in a multipath environment. A receive antenna for receiving a packet is selected during a period of time for which a preamble section of the packet is received, to thereby keep change-over between packets from being carried out during receiving of the packet. This eliminates a situation that a packet must be nullified due to generation of a bit error by change-over between receive antennas during receiving of the packet, to thereby keep transmission efficiency from being deteriorated even in a multipath environment.
    Type: Grant
    Filed: July 3, 1997
    Date of Patent: October 31, 2000
    Assignee: Futaba Denshi Kogyo K.K.
    Inventors: Atsushi Hoshikuki, Satoru Ishii
  • Patent number: 6023371
    Abstract: A color conversion material comprises a high-molecular material having a light transmittance of at least 90% in a visible light region, a fluorescent dye contained therein, and a fluorescent pigment particle dispersed therein. The wavelength of unconverted light incident on the color conversion material is up to 520 nm, the light emission maximum wavelength of the conversion material is at least 580 nm upon incident light conversion, and the conversion efficiency of at least 10% is obtained.
    Type: Grant
    Filed: June 8, 1998
    Date of Patent: February 8, 2000
    Assignee: TDK Corporation
    Inventors: Osamu Onitsuka, Tetsushi Inoue, Akira Ebisawa, Mutsuko Nakano
  • Patent number: 5969998
    Abstract: A MOS dynamic random access memory includes a plurality of pairs of bit lines, and word lines transverse to the bit lines to define cross points, at which an array of memory cells are arranged. Each cell has a storage capacitor and a transfer gate MOS transistor having a gate electrode coupled to a word line and being connected between the capacitor and a bit line. Sense amplifier circuits are connected to the bit line pairs, and have a first and a second common source line. A decoder and a word line driver are connected to the word lines. A MOS transistor is connected between the power supply voltage and the first common source line, for selectively supplying it with a first voltage which potentially defines a high-level voltage for the bit line pairs.
    Type: Grant
    Filed: December 17, 1998
    Date of Patent: October 19, 1999
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Yukihito Oowaki, Daisuke Kato, Daisaburo Takashima
  • Patent number: 5950454
    Abstract: Packing elements with a low pressure drop for mass transfer column internals of the internal diameter of the column and of a height of from 40 to 300 mm made of dimensionally stable layers, which have an ordered structure and are in mutual contact, of cloth material or cloth-like material with a specific surface area of from 100 to 2000 m.sup.2 /m.sup.3, whereina) the shaped layers of cloth material or cloth-like material, preferably made of metal cloth, which are in mutual contact are arranged so that they form a multiplicity of narrow flow channels, preferably virtually triangular, virtually rectangular or else virtually equilateral hexagonal flow channels, in which the angle of inclination of the serration of the individual cloth layers of the packing to the column axis is only 0 to 25.degree., preferably 3 to 14.degree.
    Type: Grant
    Filed: January 7, 1998
    Date of Patent: September 14, 1999
    Assignee: BASF Aktiengesellschaft
    Inventors: Wolfram Burst, Horst Hartmann, Wulf Kaiser, Harald Laas, Paul Grafen, Bernhard Bockstiegel, Kai-Uwe Baldenius
  • Patent number: 5777152
    Abstract: 2-Aryl-2-chloramalonic diester is prepared by reacting 2-arylmalonic diesters with aqueous hypochlorite in the presence of an inert solubilizer at pH 8 to 14.
    Type: Grant
    Filed: February 29, 1996
    Date of Patent: July 7, 1998
    Assignee: Huels Aktiengesellschaft
    Inventors: Christoph Theis, Radu Bordeianu, Wilfried Latz
  • Patent number: 5653947
    Abstract: The present invention is a method for producing alumina trihydrate with a low silica content from Gibbsite-containing bauxite of low reactive silica content. The present method involves two desilication steps: one step before extraction of alumina from the bauxite, i.e., a pre-desilication, and an additional desilication step following alumina extraction, i.e., a post-desilication. The present method comprises the steps of:(a) heating a suspension of ground bauxite in an aqueous solution comprising sodium hydroxide at a temperature greater than 80.degree. C.; and(b) increasing the sodium hydroxide concentration of the suspension from (a); and(c) heating the suspension from (b) at a temperature greater than 80.degree. C.; and(d) diluting the suspension from (c) with an aqueous solution; and(e) heating the suspension from (d) at a temperature greater than 80.degree. C., affording a suspension comprising a supersaturated, desilicated sodium aluminate liquor and insoluble solid.
    Type: Grant
    Filed: March 29, 1996
    Date of Patent: August 5, 1997
    Assignee: Aluminium Pechiney
    Inventor: Jean Michel Lamerant
  • Patent number: 5644405
    Abstract: A signal receiving unit receives an image signal through the facsimile function. An image reading unit reads an image and outputs the corresponding image signal. An outputting unit outputs onto a recording medium either the image specified by the signal received by the signal receiving unit or the image specified by the signal output by the image reading unit. A storing unit stores the signal input by the signal receiving unit if appropriate. A switching unit switches so that the outputting unit starts outputting of the image specified by the signal output by the image reading unit when the image reading unit starts reading of the image even if the outputting unit is outputting the image specified by the signal receiving unit, the storing unit then storing the signal input by the signal receiving unit while the relevant signal is not used by the outputting unit using the signal being output from the image reading unit.
    Type: Grant
    Filed: March 10, 1994
    Date of Patent: July 1, 1997
    Assignee: Ricoh Company, Ltd.
    Inventor: Kazuhiro Sato
  • Patent number: 5629015
    Abstract: Compositions comprising a first dispersion of lipid vesicles which are capable of penetrating into the deep layers of the skin and which contain at least one active agent chosen from moisturizing agents, anti-free-radical agents, keratolytic agents, protides, enzymes, anti-elastase agents and anti-collagenase agents, and fatty acid derivatives, for treating these deep layers, and a second dispersion of lipid vesicles which are capable of penetrating into the surface layers of the skin and which contain at least one active agent chosen from keratolytic agents, tensioning agents, moisturizing agents, surface-restructuring agents and anti-free-radical agents, for treating these surface layers, are effective for combating ageing, acting simultaneously on the surface layers and deep layers of the skin.
    Type: Grant
    Filed: December 30, 1994
    Date of Patent: May 13, 1997
    Assignee: L'Oreal
    Inventors: Alain Ribier, Jean-Thierry Simonnet, Florence Girerd, Francoise Gagnebien-Cabanne