Patents Represented by Attorney, Agent or Law Firm Arent Fox Kinter Plotkin & Kahn PLLC
  • Patent number: 6744300
    Abstract: A semiconductor integrated circuit includes a switch unit for controlling the supply of a power source voltage to a signal amplification circuit for receiving an input signal, and a control unit for selectively turning ON and OFF the switch unit in accordance with the amplitude or frequency of the input signal. By the constitution, it is possible to provide an input circuit or an output circuit capable of being applied to an input/output interface adapted for a small amplitude operation.
    Type: Grant
    Filed: October 23, 2002
    Date of Patent: June 1, 2004
    Assignee: Fujitsu Limited
    Inventors: Masao Taguchi, Satoshi Eto, Yoshihiro Takemae, Hiroshi Yoshioka, Makoto Koga
  • Patent number: 6711198
    Abstract: A light source device for a laser beam printer in which a semiconductor laser is driven with a pulse current having a minimum pulse width at the ON time on the order of milliseconds or less is provided, wherein the semiconductor laser is formed so that either the rate of change at the rise portion of the pulse current becomes ±8% or less or the semiconductor laser is excited in a multiple mode in the vicinity of the threshold value of the oscillation, and the semiconductor laser oscillates in a single mode at a current separated from the threshold value, by adjusting of at least one of the width w of a stripe groove (7a) of the current block layer, the composition of clad layers (5), the distance d between the current block layer (7) and the active layer (4), the composition of the current block layer (7) and the formation of a light absorption layer into the current block layer (7).
    Type: Grant
    Filed: April 14, 2000
    Date of Patent: March 23, 2004
    Assignee: Rohm Co. Ltd.
    Inventors: Jun Ichihara, Hisayoshi Kitajima, Tetsuhiro Tanabe, Ken Nakahara, Haruo Tanaka
  • Patent number: 6657719
    Abstract: A device for analyzing plasma enclosed in a chamber. The device has a lens array which has a plurality of lens array lenses. The lens array lenses are located in a position so that the line of sight for each lens array lens intersects one another at a single point in front of the lens array. Each lens array lens is also located in a position so that each lens array lens is focused near a rear wall of the chamber. Behind each lens array lens is a cable having a first end and a second end. The first end of the cable is located in a position to receive emission elements through the lens array lens. A collimating lens is located at the second end of the cable to couple the emission elements from the second end of the cable through a wavelength selective element. A recording device is located in a position to record the emission elements through the wavelength selective element.
    Type: Grant
    Filed: August 7, 2000
    Date of Patent: December 2, 2003
    Assignee: The United States of America as represented by the Department of Commerce
    Inventor: Eric C. Benck
  • Patent number: 6631711
    Abstract: A self-contained, easily foldable and reconfigurable charcoal lighting and/or grill device. In some variations, the lighting and/or grill device is arrangeable into multiple configurations: 1) in which the device has a thin profile for easy carrying and storage; 2) in which the device facilitates fuel lighting by forming an enclosure; and 3) for the combination charcoal and grill device only, in which the device has a generally U-shaped profile, with extended legs and one or more side handles for grilling foods. Another variation of the device includes an ignition enhancer housing that is suspendably attached to an existing grill. A rack is positioned above the housing, and one or more doors are used in conjunction with the existing grill sides to form an enclosure to enhance lighting of fuel. Upon lighting, the one or more doors are rearrangeable such that the grill may be used normally.
    Type: Grant
    Filed: March 7, 2001
    Date of Patent: October 14, 2003
    Inventor: Eric Patience
  • Patent number: 6627342
    Abstract: A fuel evaporator 1 is provided in a fuel cell system FCS having an evaporating chamber that evaporates liquid fuel into fuel gas by heat medium gas. The fuel evaporator is provided with a liquid fuel injection apparatus 40 that injects liquid fuel into the evaporating chamber and an injection volume adjusting apparatus 42 that adjusts the injection volume of the liquid fuel injection apparatus. The injection volume adjusting apparatus 42 includes an injection volume adjusting portion that sets the fuel injection volume according to an injection volume target setting signal.
    Type: Grant
    Filed: November 17, 2000
    Date of Patent: September 30, 2003
    Assignee: Honda Giken Kogyo Kabushiki Kaisha
    Inventors: Masahito Nakamura, Takahiro Tachihara, Kouji Miyano
  • Patent number: 6614686
    Abstract: The present invention provides a multi-bits non-volatile memory circuit having a cell transistor with non-conductive trap gate which has a cell array capable of reading a plural data simultaneously. The present invention is a non-volatile memory circuit in which a plurality of cell transistors M having a non-conductive trapping gate TG are arranged, comprising: a plurality of source-drain lines SDL, which are connected commonly with the source-drain regions SD1, SD2 of cell transistors adjacent in row direction, wherein these adjacent source-drain lines are set to a floating state F, a read-out voltage application state BL, a reference voltage state OV, a read-out voltage state BL, and a floating state F, and the source-drain lines SDL in the read-out voltage state is caused to function as bit lines, such that a plurality of data are read out simultaneously. The above states are generated by the page buffer P/B connected to the source-drain line. The data read and hold are performed by the page buffer.
    Type: Grant
    Filed: March 1, 2002
    Date of Patent: September 2, 2003
    Assignee: Fujitsu Limited
    Inventor: Shoichi Kawamura
  • Patent number: 6582124
    Abstract: A portable soft sided insulated container has an impermeable liner that provides a liquid holding barrier. The liner is folded from a single monolithic plastic sheet to reduce or eliminate the need for heat welded seams. The liner seats within the container and has a releasable attachment around its lip for mating with the rim of the container. The container has an insulated lid so that the entire assembly may be closed. The liner can be removed for cleaning, or replacement if punctured. When not in use the entire assembly can be folded into a collapsed position for storage.
    Type: Grant
    Filed: March 14, 2001
    Date of Patent: June 24, 2003
    Assignee: California Innovations Inc.
    Inventor: Melvin S. Mogil
  • Patent number: 6574560
    Abstract: In a vehicle operation assist control system for assisting a vehicle operator to operate a vehicle, a distance to the obstacle and a width of the obstacle are detected by a radar or the like, and, when an obstacle is detected, the system determines an evasion path and accordingly modifies the map information available to the system. Therefore, the system, being aware of the situation, would not interfere with the vehicle operator taking an evasive action. The evasive path may be defined as a curvature which changes as a sinusoidal mathematical function of the position of the vehicle along the path. The control system may be based on a yaw rate control or a vehicle side slip angle control.
    Type: Grant
    Filed: November 5, 2001
    Date of Patent: June 3, 2003
    Assignee: Honda Giken Kogyo Kabushiki Kaisha
    Inventors: Masato Abe, Yoshimi Furukawa
  • Patent number: 6563746
    Abstract: An internal voltage generator when activated, generates an internal voltage to be supplied to an internal circuit. Operating the internal voltage generator consumes a predetermined amount of the power. In response to a control signal from the exterior, an entry circuit inactivates the internal voltage generator. When the internal voltage generator is inactivated, the internal voltage is not generated, thereby reducing the power consumption. By the control signal from the exterior, therefore, a chip can easily enter a low power consumption mode. The internal voltage generator is exemplified by a booster for generating the boost voltage of a word line connected with memory cells, a substrate voltage generator for generating a substrate voltage, or a precharging voltage generator for generating the precharging voltage of bit lines to be connected with the memory cells.
    Type: Grant
    Filed: March 30, 2001
    Date of Patent: May 13, 2003
    Assignee: Fujitsu Limited
    Inventors: Shinya Fujioka, Tomohiro Kawakubo, Koichi Nishimura, Kotoku Sato
  • Patent number: 6555639
    Abstract: A polymerization process in microemulsion of: (I) one or more fluorinated monomers containing at least one ethylene unsaturation; (II) one or more fluorinated monomers containing sulphonyl groups —SO2F; said process comprising: a) preparation of an aqueous microemulsion, having a pH in the range 4-7, of perfluoropolyethers (PFPEs); b) feeding of the microemulsion to the polymerization reactor, in an amount higher than 18 ml per liter of reaction medium; c) introduction of the monomer (II) in liquid form into the reactor, reactor pressurization with the gaseous monomers (I); d) addition of the initiator, and feeding of the monomers (I) during the polymerization so as to maintain constant the reactor pressure.
    Type: Grant
    Filed: June 22, 2001
    Date of Patent: April 29, 2003
    Assignee: Ausimont S.p.A.
    Inventors: Marco Apostolo, Vincenzo Arcella
  • Patent number: 6529366
    Abstract: A sintered body (10) made of valve action metal powders such as Ta powders, in which an anode lead (11) is embedded in one of wall faces is formed. A dielectric layer (oxide layer) (14) is formed around the metal powders. A manganese dioxide layer (15) is formed around the sintered body in which the dielectric layer is provided on the metal powders. A graphite layer is formed on the manganese dioxide layer. The graphite layer is made by an aqueous graphite layer (16) on the manganese dioxide layer side and a resin graphite layer (17) formed on the aqueous graphite layer. A metal layer (18) is formed on the graphite layer. In such a manner, a capacitor (1) element is formed. Preferably, the graphite layer is burned at a temperature ranging from 230 to 300° C. As a result, an increase in impedance caused by a thermal stress between cathode layers is prevented. Thus, a solid electrolytic capacitor having a small impedance between the anode and the cathode is obtained.
    Type: Grant
    Filed: October 22, 2001
    Date of Patent: March 4, 2003
    Assignee: Rohm Co., Ltd.
    Inventor: Takahiro Nakamura
  • Patent number: 6522667
    Abstract: A network interworking device for executing conversion between IP packets and ATM cells, the network interworking device being to be connected between an IP network in which information are transmitted in a form of the IP packets and an ATM network in which information are transmitted in a form of the ATM cells, the IP network having a hierarchy structure with an IP layer, the ATM network having a hierarchy structure with an AAL layer, the network interworking device comprising means for assembling a plurality of ATM cells in the ALL layer of the ATM network into an IP packet when the plurality of the ATM cells are to be transmitted to the same address in the IP communication network, the assembled IP packet being transmitted to the IP layer, and means for disassembling an IP packet in the IP layer of the IP network into a plurality of ATM cells, the disassembled ATM cells being transmitted to the AAL layer.
    Type: Grant
    Filed: May 13, 1999
    Date of Patent: February 18, 2003
    Assignee: KDD Corporation
    Inventors: Toshikane Oda, Hideaki Yamada
  • Patent number: 6499432
    Abstract: A cleaner for the inside of a water tank is designed to draw up water stored within the water tank for aquarium fishes such as goldfishes, tropical fishes and the like to discharge the water to the outside. In this cleaner, a draw-up pipe is comprised of a body portion, and a grip portion connected at an angle of 90° or more to the body portion. A first one-way valve and a second one-way valve are mounted within the draw-up pipe. Thus, the cleaner has a good manipulatability, so that air stored in the cleaner can be reliably discharged, and the discharging of water can be carried out reliably.
    Type: Grant
    Filed: October 14, 1999
    Date of Patent: December 31, 2002
    Assignee: Suiken Co., Ltd.
    Inventor: Soichi Ogawa
  • Patent number: 6498469
    Abstract: The internal supply voltage generating circuit includes a level trimming circuit for regulating a first reference voltage and generating a predetermined second reference voltage, and an internal reference voltage generating circuit connected to the level trimming circuit, for generating internal reference voltages using the predetermined second reference voltage. The internal supply voltage generating circuit prevents the circuit area from increasing, reduces a variation in a load when regulating a feedback voltage, and generates a plurality of highly accurate internal supply voltages.
    Type: Grant
    Filed: January 30, 2001
    Date of Patent: December 24, 2002
    Assignee: Fujitsu Limited
    Inventor: Isamu Kobayashi
  • Patent number: 6489017
    Abstract: The invention relates to a method for producing a solid molded article, in particular a ceramic and/or metallic article made of pulverized particles. The invention also relates to stable dispersions of pulverized particles in an aqueous fluid medium, solid molded articles made of pulverized particles, and sintered ceramic and/or metallic molded articles.
    Type: Grant
    Filed: April 10, 2000
    Date of Patent: December 3, 2002
    Assignee: Max-Planck-Gesellschaft zur Fulderung der Wissenschaften E.V.
    Inventors: Fritz Aldinger, Wolfgang Sigmund, Joseph Yanez
  • Patent number: 6460110
    Abstract: The present invention relates to a semiconductor memory having a pre-fetch structure. In such memory, an odd address cell array is provided with an odd address redundant cell array, and an even address cell array is provided with an even address redundant cell array, firstly, the present invention comprises a redundant memory, which stores an odd redundant address and an even redundant address, together with odd and even selection data. Since redundant memory is used flexibly on the odd side and even side, it is possible to maintain a high relief probability even when redundant memory capacity is reduced.
    Type: Grant
    Filed: February 5, 1998
    Date of Patent: October 1, 2002
    Assignee: Fujitsu Limited
    Inventor: Hiroyoshi Tomita
  • Patent number: 6401898
    Abstract: In a clutch piston for a lock-up clutch, which has an annular friction lining bonded thereto and provided with an entire flat friction surface, the friction lining is formed of a plurality of fan-shaped lining segments which are made at a good yield by punching from a lining blank sheet and which are arranged annularly without gaps therebetween. Thus, it is possible to provide a clutch piston which is made at a low cost and operated reliably.
    Type: Grant
    Filed: May 4, 2000
    Date of Patent: June 11, 2002
    Assignee: Kabushiki Kaisha F.C.C.
    Inventors: Hiroji Shimoi, Kenichi Toba
  • Patent number: 6385119
    Abstract: A method for controlling an internal supply voltage generating circuit reduces power consumption in an active mode. The internal supply voltage generating circuit includes a first voltage-drop regulator, which supplies a relatively large driving power to an internal circuit, and a second voltage-drop regulator, which supplies a relatively small driving power to the internal circuit. First, the second voltage-drop regulator is activated and the first voltage-drop regulator is inactivated in one of a stand-by mode and a power-down mode. Then, at least the first voltage-drop regulator is activated in an active mode, and the first voltage-drop regulator is inactivated in an active pause of the active mode. The first voltage-drop regulator is activated when the active pause is cancelled.
    Type: Grant
    Filed: January 30, 2001
    Date of Patent: May 7, 2002
    Assignee: Fujitsu Limited
    Inventors: Isamu Kobayashi, Yoshiharu Kato, Kenji Nagai
  • Patent number: 6371166
    Abstract: In a solenoid valve device in which connection terminals, each of which is connected to one of a plurality of solenoid valves fixed in a mounting block, are placed inside a common coupler, a coupler assembly integrally comprising the coupler is detachably mounted on the mounting block at a position which is spaced back from each of the solenoid parts, and elastic connecting members made from an electrically conductive metal are provided between each of a plurality of first flat terminals which are fixedly positioned on the side of the coupler assembly facing the mounting block so as to connect to the corresponding electrically conductive lead members arranged in the coupler assembly and second flat terminals, each of which is arranged at the rear end of each of the solenoid parts so as to be individually opposite the first flat terminals.
    Type: Grant
    Filed: November 30, 2000
    Date of Patent: April 16, 2002
    Assignee: Keihin Corporation
    Inventors: Hiroshi Yoshizawa, Katsumi Shirai, Akira Nagasaki, Shigeto Ryuen, Masayuki Shibata
  • Patent number: 6373702
    Abstract: A cooling structure for cooling an exothermic panel such as a plasma display panel by releasing heat therefrom, comprising: a chassis structure for holding the exothermic panel; a plurality of circuit board connecting portions, a plurality of heat radiating fins and a plurality of side frames, which are all integrally formed with the chassis structure on one side thereof. Specifically, at least one sort of the circuit board connecting portions, the heat radiating fins and the side frames are formed in a hollow structure.
    Type: Grant
    Filed: December 21, 2000
    Date of Patent: April 16, 2002
    Assignee: Pioneer Corporation
    Inventors: Toshiharu Oishi, Koichi Kaneko, Daisuke Takao, Sadao Yokoi