Patents Represented by Attorney, Agent or Law Firm Plotkin & Kahn PLLC
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Patent number: 6325107Abstract: 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: GrantFiled: July 26, 1999Date of Patent: December 4, 2001Assignee: Usui Kokusai Sangyo Kaisha LimitedInventor: Masayoshi Usui
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Patent number: 6325000Abstract: 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: GrantFiled: October 31, 2000Date of Patent: December 4, 2001Assignee: Meito CorporationInventor: Satoshi Furuta
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Patent number: 6324099Abstract: 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: GrantFiled: November 27, 2000Date of Patent: November 27, 2001Assignee: Fujitsu LimitedInventor: Mitsuteru Iijima
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Patent number: 6321987Abstract: 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: GrantFiled: March 24, 2000Date of Patent: November 27, 2001Assignee: Fujitsu LimitedInventors: Mitsuo Watanabe, Shinichi Sato, Isao Iwaguchi, Ichiro Shinoda
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Patent number: 6324193Abstract: 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: GrantFiled: February 19, 1999Date of Patent: November 27, 2001Assignee: PhotoneticsInventors: Sophie Bourzeix, Daniel Gatti, Philippe Graindorge, Bernard Laloux, Hervé Lefevre, Denis Mangeot, Philippe Martin
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Patent number: 6323908Abstract: 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: GrantFiled: November 23, 1998Date of Patent: November 27, 2001Assignee: Sanyo Electric Co., Ltd.Inventors: Takayuki Kida, Nobuhiro Hara
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Patent number: 6323612Abstract: 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: GrantFiled: March 9, 2000Date of Patent: November 27, 2001Assignee: Rohm Co., Ltd.Inventor: Yasuhiro Miyagoe
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Patent number: 6324452Abstract: 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: GrantFiled: June 23, 2000Date of Patent: November 27, 2001Assignee: Honda Giken Kogyo Kabushiki KaishaInventor: Manabu Ikegaya
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Patent number: 6323379Abstract: 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: GrantFiled: May 11, 2000Date of Patent: November 27, 2001Assignee: Ausimont S.p.A.Inventors: Paolo Cuzzato, Letanzio Bragante, Francesco Rinaldi
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Patent number: 6323548Abstract: 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: GrantFiled: September 29, 1998Date of Patent: November 27, 2001Assignee: Rohm Co., LTDInventor: Noriaki Hiraga
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Patent number: 6324626Abstract: 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: GrantFiled: July 1, 1998Date of Patent: November 27, 2001Assignee: Rohm Co., Ltd.Inventors: Hiromi Uenoyama, Hiroki Takagi
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Patent number: 6321940Abstract: 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: GrantFiled: July 18, 2000Date of Patent: November 27, 2001Assignee: Sumitomo Heavy Industries, Ltd.Inventors: Yoshiyuki Imatomi, Tomohiro Hirano
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Patent number: 6324111Abstract: 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: GrantFiled: April 28, 2000Date of Patent: November 27, 2001Assignee: Fujitsu LimitedInventors: Yasuharu Sato, Shinya Fujioka
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Patent number: 6322958Abstract: 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: GrantFiled: July 10, 2000Date of Patent: November 27, 2001Assignee: Sumitomo Heavy Industries Ltd.Inventor: Kenichi Hayashi
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Patent number: 6324113Abstract: 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: GrantFiled: May 24, 2000Date of Patent: November 27, 2001Assignee: Fujitsu LimitedInventor: Hiroyoshi Tomita
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Patent number: 6322952Abstract: 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: GrantFiled: June 1, 2000Date of Patent: November 27, 2001Assignee: Goo Chemical Co., Ltd.Inventor: Toshio Morigaki
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Patent number: 6321434Abstract: 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: GrantFiled: March 16, 2000Date of Patent: November 27, 2001Assignee: Toska Co., Ltd.Inventor: Mikio Kubota
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Patent number: 6324166Abstract: 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) wType: GrantFiled: July 2, 1998Date of Patent: November 27, 2001Assignee: Kokusai Denshin Denwa Co., Ltd.Inventors: Hiroyuki Yokoyama, Hajime Nakamura
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Patent number: D451058Type: GrantFiled: August 22, 2000Date of Patent: November 27, 2001Assignee: The Yokohama Rubber Co., Ltd.Inventors: Masahiro Ebiko, Sadakazu Takei, Takumi Morito, Kohtaroh Iwabuchi
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Patent number: D451252Type: GrantFiled: December 6, 2000Date of Patent: November 27, 2001Assignee: Sanyo Electric Co., Ltd.Inventors: Kenji Ikeno, Kazuhiko Nakano, Hiroko Tsuchida