Patents Represented by Attorney, Agent or Law Firm Plotkin & Kahn PLLC
  • Patent number: 6325107
    Abstract: A metal pipeline for use in an automobile having a protective coating layer comprising a metal tube, a zinc-nickel alloy plating layer formed on the outer circumferential surface of the metal tube, a chromate layer formed on the zinc-nickel alloy plating layer and an extrusion molded thermoplastic resin coating layer formed on the chromate layer. A nickel plating layer is formed under the zinc-nickel alloy plating layer. The metal pipeline having the protective coating layer has excellent durability under severe corrosive circumstances including external mechanical forces and also has excellent heat resistance, corrosion resistance and impact shock resistance.
    Type: Grant
    Filed: July 26, 1999
    Date of Patent: December 4, 2001
    Assignee: Usui Kokusai Sangyo Kaisha Limited
    Inventor: Masayoshi Usui
  • Patent number: 6325000
    Abstract: A waste incineration machine capable of rendering a waste gas occurring during the combustion of waste smokeless and odorless. A heat insulating wall to which a first far infrared ray radiator is fixed is provided so as to surround a combustion furnace and a combustion chamber, and a heat exchanger so as to surround the heat insulating wall. An inner flue is formed between the heat insulating wall and combustion furnace, and an outer flue serving as a waste gas convection chamber between the heat insulating wall and heat exchanger. An upper part of a communication portion between the inner and outer flues is covered with a heat insulating member constituting a second far infrared ray radiator so as to subject the waste gas to secondary heating using far infrared rays, and thereby to render the waste gas smokeless and odorless.
    Type: Grant
    Filed: October 31, 2000
    Date of Patent: December 4, 2001
    Assignee: Meito Corporation
    Inventor: Satoshi Furuta
  • Patent number: 6324099
    Abstract: A control method for a nonvolatile semiconductor memory having a number of nonvolatile semiconductor memory cells formed on a surface of a semiconductor substrate each having a gate insulating film including a carrier trap layer, a gate electrode formed on the gate insulating film, and first and second diffusion regions symmetrically formed in the semiconductor substrate on both sides of the gate electrode.
    Type: Grant
    Filed: November 27, 2000
    Date of Patent: November 27, 2001
    Assignee: Fujitsu Limited
    Inventor: Mitsuteru Iijima
  • Patent number: 6321987
    Abstract: A demodulated data storage buffer is stored with bar width data sets obtained by scanning a coupon code with a scan optical system. A CPU first executes a demodulating process on these bar width data sets in accordance with a demodulation algorithm in a WPC code system. If an end guard bar (RGB) of the WPC code is contained in the demodulated data by the demodulating process, the demodulating process is executed on the same bar width data sets in accordance with a demodulation algorithm in a CODE 128 code system.
    Type: Grant
    Filed: March 24, 2000
    Date of Patent: November 27, 2001
    Assignee: Fujitsu Limited
    Inventors: Mitsuo Watanabe, Shinichi Sato, Isao Iwaguchi, Ichiro Shinoda
  • Patent number: 6324193
    Abstract: The invention relates to an external cavity, continuously tunable monomode laser source, comprising, in a resonant cavity, resonating at the emission wavelength &lgr;e, a retroreflecting wavelength dispersing device, arranged to produce a selectivity curve with a peak 80 s. According to the invention, additional fine-control means, enable, from the approximate continuous tunability position, to monitor the deviation &lgr;e-&lgr;s during the variation of the emission wavelength ke while preventing this deviation from reaching one of the limits causing mode hopping. Such a configuration enables to avoid imperfections usually associated with mechanical adjustment and to guarantee continuity of the wavelength variation and to compensate for the latter as long as its fluctuations remain smaller than approx. &Dgr;&lgr;e/2 where &Dgr;&lgr;e is the distance between two successive resonance modes of the cavity.
    Type: Grant
    Filed: February 19, 1999
    Date of Patent: November 27, 2001
    Assignee: Photonetics
    Inventors: Sophie Bourzeix, Daniel Gatti, Philippe Graindorge, Bernard Laloux, Hervé Lefevre, Denis Mangeot, Philippe Martin
  • Patent number: 6323908
    Abstract: A digital broadcast receiver includes a CPU. The CPU starts a VTR several ten seconds before a broadcast start time for a reserved program, to set a video recording mode. Simultaneously, program information for the reserved program is outputted to the VTR. When the broadcast start time comes, the CPU stops the outputting of the program information, and outputs a video and audio signal for the reserved program to the VTR. Accordingly, a video cassette is first recorded with the program information, and then video-recorded with the reserved program.
    Type: Grant
    Filed: November 23, 1998
    Date of Patent: November 27, 2001
    Assignee: Sanyo Electric Co., Ltd.
    Inventors: Takayuki Kida, Nobuhiro Hara
  • Patent number: 6323612
    Abstract: A motor driving device for keeping the rotation speed of a spindle motor has a detector for detecting the rotation rate of the motor and a circuit for producing an error voltage that represents the error of the detected rotation rate from the specified rotation rate. In accordance with the error voltage, the amplitude of the driving signal of the motor is controlled. As the error voltage becomes lower, the amplitude of the driving signal is increased to supply more current to the motor. To prevent an overcurrent through the motor, a current limiter circuit is provided. When the error voltage is lower than the current limit voltage output from the current limiter circuit, the driving signal is controlled in accordance with the current limit voltage instead of the error voltage. The current limiter circuit is so configured that the current limit voltage does not vary with temperature.
    Type: Grant
    Filed: March 9, 2000
    Date of Patent: November 27, 2001
    Assignee: Rohm Co., Ltd.
    Inventor: Yasuhiro Miyagoe
  • Patent number: 6324452
    Abstract: A vehicle steering control system for conducting a steering assistance control, in which it is determined whether the vehicle operator has the intention to drive the vehicle by himself. This is done by discriminating the intention using the vehicle lateral deviation, the steering torque and the steering torque change. When it is discriminated that the vehicle operator does not have the intention in two or more discriminations, it is finally determined that the vehicle operator does not have the intention and the vehicle operator is alerted and/or the steering assistance control is discontinued, thereby preventing the vehicle operator from depending on the steer assist torque control excessively.
    Type: Grant
    Filed: June 23, 2000
    Date of Patent: November 27, 2001
    Assignee: Honda Giken Kogyo Kabushiki Kaisha
    Inventor: Manabu Ikegaya
  • Patent number: 6323379
    Abstract: A process for obtaining pentafluoroethane HFC 125 by dismutation of gaseous tetrafluorochloroethane HCFC 124, at temperatures in the range 200°-300° C., on a trivalent chromium oxide (Cr2O3) catalyst, supported on aluminum fluoride, by feeding HF in such amount that the HCFC 124/HF molar ratio is in the range 10/1-1/1.
    Type: Grant
    Filed: May 11, 2000
    Date of Patent: November 27, 2001
    Assignee: Ausimont S.p.A.
    Inventors: Paolo Cuzzato, Letanzio Bragante, Francesco Rinaldi
  • Patent number: 6323548
    Abstract: A semiconductor integrated circuit device has a semiconductor chip, a plurality of input/output pads formed on the semiconductor chip, a frame on which the semiconductor chip is mounted, a plurality of inner leads arranged on the frame so as to extend radially with respect to each side of the semiconductor chip, and wires for connecting the input/output pads to the inner leads. The plurality of input/output pads are so arranged that, with respect to any two input/output pads that are connected to two adjacent inner leads, one input/output pad is placed on an imaginary line that is parallel to and a predetermined distance apart from the wire connecting the other input/output pad to the corresponding inner lead.
    Type: Grant
    Filed: September 29, 1998
    Date of Patent: November 27, 2001
    Assignee: Rohm Co., LTD
    Inventor: Noriaki Hiraga
  • Patent number: 6324626
    Abstract: A semiconductor memory has a main memory and an ID memory, of which both store data in a nonvolatile memory. The data stored in the ID memory is compared with data entered from outside by a verifying circuit. Whether access to the main memory is permitted or not depends on the result of the verification by the verifying circuit. The operation code for accessing the ID memory is different from the operation code for accessing the main memory. The operation code for the ID memory is changed in accordance with the data stored in the ID memory.
    Type: Grant
    Filed: July 1, 1998
    Date of Patent: November 27, 2001
    Assignee: Rohm Co., Ltd.
    Inventors: Hiromi Uenoyama, Hiroki Takagi
  • Patent number: 6321940
    Abstract: An injection apparatus which can reduce frictional resistance which acts on resin during an injection step to thereby prevent variation in a reference position and improve quality of molded products. The injection apparatus comprises a heating cylinder; a screw disposed within the heating cylinder to be rotatable and reciprocatable, the screw having a flight portion in which a flight is formed on an outer circumference of a screw body, and a screw head disposed at a front end of the flight portion; a first drive unit for rotating the screw; a second drive unit for advancing and retracting the screw; a screw-advancement control unit for driving the second drive unit in an injection step in order to advance the screw at a predetermined screw speed; and a flight speed control unit for driving the first drive unit in the injection step in order to advance the flight at a flight speed that is apparently lower than the screw speed.
    Type: Grant
    Filed: July 18, 2000
    Date of Patent: November 27, 2001
    Assignee: Sumitomo Heavy Industries, Ltd.
    Inventors: Yoshiyuki Imatomi, Tomohiro Hirano
  • Patent number: 6324111
    Abstract: A semiconductor memory includes p-type MOS transistors (11) dispersed in one-to-one correspondence with sense amplifiers (4−1-4−n) to activate their corresponding sense amplifiers, and a p-type MOS transistor (12) to activate the sense amplifiers (4−1-4−n). After the p-type MOS transistors (11) are overdriven by an external voltage (VCC) higher than a memory stored voltage, the p-type MOS transistor (12) is driven by an internal step-down voltage (VII) that is the memory stored voltage. This increases the driving capability per sense amplifier in comparison with a conventional method and further increases the speed of sense operation in comparison with a simple overdriving method.
    Type: Grant
    Filed: April 28, 2000
    Date of Patent: November 27, 2001
    Assignee: Fujitsu Limited
    Inventors: Yasuharu Sato, Shinya Fujioka
  • Patent number: 6322958
    Abstract: A laser beam is radiated from a laser source. The laser beam radiated from the laser source is converged at a converging point inside of a work member to form cracks at the converging point and in its nearby area, by making a cross section of the laser beam at the converging point have a shape long in a first direction perpendicular to an optical axis of the laser beam. Markers easy to increase contrast can be formed in the work member.
    Type: Grant
    Filed: July 10, 2000
    Date of Patent: November 27, 2001
    Assignee: Sumitomo Heavy Industries Ltd.
    Inventor: Kenichi Hayashi
  • Patent number: 6324113
    Abstract: A semiconductor integrated circuit comprising: a pair of memory cores in which identical data are written; a refresh signal generating circuit; a refresh controlling circuit; and a read controlling circuit. The memory cores are operated during each predetermined period as refresh cores for performing a refresh operation and as read cores for performing a read operation. The refresh core performs refresh and write operations. The read core performs read and write operations. The write cycle time defined as an operation specification is set longer than the time necessary for each of the memory cores to perform a write operation. Therefore, during the refresh core, the time difference between the write cycle and the write operation is summed up during a plurality of write cycles to create a predetermined time margin.
    Type: Grant
    Filed: May 24, 2000
    Date of Patent: November 27, 2001
    Assignee: Fujitsu Limited
    Inventor: Hiroyoshi Tomita
  • Patent number: 6322952
    Abstract: A photosensitive resin composition developable with water or a diluted alkali solution comprises the following components (A) to (D). That is, the component (A) is a water-soluble photosensitive resin selected from the group consisting of a first resin obtained by introducing a styryl pyridinium group into a polyvinyl alcohol polymer, a second resin obtained by introducing a styryl quinolinium group into the polyvinyl alcohol polymer, and a third resin obtained by adding N-alkylol (meth)acrylamide to the polyvinyl alcohol polymer. The component (B) is a photosensitive prepolymer having a carboxyl group and at least two ethylenically unsaturated groups in molecule. The component (C) is a photopolymerization initiator. The component (D) is water. The photosensitive resin composition will be preferably used as a photoresist ink for manufacturing printed wiring boards.
    Type: Grant
    Filed: June 1, 2000
    Date of Patent: November 27, 2001
    Assignee: Goo Chemical Co., Ltd.
    Inventor: Toshio Morigaki
  • Patent number: 6321434
    Abstract: A method for manufacturing sealing tool comprising a socket (3) and a head (4) at one end and the other end of a linear element (2) respectively and a protrusion (11) for locking the head (4) in a head-insertion hole (10) of the socket (3), which comprises the steps in the mentioned sequence of fixing a core ball (13) and either the socket (3) or the head (4) to the linear element (2), cutting the linear element (2) at a point close to the core ball (13), pulling the linear element (2) to bring the core ball (13) to be set in a cavity (27) and filing a synthetic resin in the cavity (27) in a manner such that the core ball (13) and the socket (3) engageable with the head (4) are integrally formed.
    Type: Grant
    Filed: March 16, 2000
    Date of Patent: November 27, 2001
    Assignee: Toska Co., Ltd.
    Inventor: Mikio Kubota
  • Patent number: 6324166
    Abstract: A call setup control apparatus has a first calculation unit for calculating an objective value of cell loss ratio PB(u) of a buffer Bu in priority class u which is equal to or lower than a priority class k (u=k to K), based upon parameters of an average cell rate R(k,j), an objective value of cell loss ratio Q(k,j), and the number of calls N(k,j) for calls of each type j (J=1 to Jk) in each class k (=1 to K), with considering a cell rate of calls in priority class which is higher than the class k (class 1 to k−1), when a fresh call is arrived, a unit for obtaining a bandwidth &agr;(k,u,j) required for calls of type j in class k in the buffer Bu to make a cell loss ratio in the buffer Bu to be equal to or less than the objective value PB(u), a second calculation unit for calculating a required bandwidth C(u) for the buffer Bu, based upon the obtained bandwidth &agr;(k,u,j), and a unit for judging whether the fresh call is acceptable or not by comparing the calculated bandwidth C(u) w
    Type: Grant
    Filed: July 2, 1998
    Date of Patent: November 27, 2001
    Assignee: Kokusai Denshin Denwa Co., Ltd.
    Inventors: Hiroyuki Yokoyama, Hajime Nakamura
  • Patent number: D451058
    Type: Grant
    Filed: August 22, 2000
    Date of Patent: November 27, 2001
    Assignee: The Yokohama Rubber Co., Ltd.
    Inventors: Masahiro Ebiko, Sadakazu Takei, Takumi Morito, Kohtaroh Iwabuchi
  • Patent number: D451252
    Type: Grant
    Filed: December 6, 2000
    Date of Patent: November 27, 2001
    Assignee: Sanyo Electric Co., Ltd.
    Inventors: Kenji Ikeno, Kazuhiko Nakano, Hiroko Tsuchida