Patents Represented by Attorney, Agent or Law Firm Plotkin & Kahn PLLC
  • Semiconductor device using complementary clock and signal input state detection circuit used for the same
    Patent number: 6333660
    Abstract: A semiconductor device for generating first and second internal clocks complementary with each other from an external clock and usable for both a system of a type using a complementary clock and a system of a type generating a 180° phase clock internally, is disclosed. A first clock input circuit (buffer) is supplied with a first external clock and outputs a first internal clock. A second clock input circuit (buffer) is supplied with a second external clock complementary with the first external clock and outputs a second clock. A ½ phase clock generating circuit generates a ½ phase shift signal 180° out of phase with the first internal clock. A second external clock state detection circuit judges whether the second external clock is input to the second clock input buffer.
    Type: Grant
    Filed: February 12, 2001
    Date of Patent: December 25, 2001
    Assignee: Fujitsu Limited
    Inventors: Masao Taguchi, Hiroyoshi Tomita, Yasurou Matsuzaki
  • Memory device with a plurality of common data buses
    Patent number: 6333890
    Abstract: According to an aspect of the present invention, a memory device having a plurality of banks carries out bank interleaving by use of a plurality of common data buses, the number of which is less than the number of the banks. The present invention enables the data to be read more rapidly while suppressing the increase of the chip area.
    Type: Grant
    Filed: October 25, 2000
    Date of Patent: December 25, 2001
    Assignee: Fujitsu Limited
    Inventors: Masahiro Niimi, Shinya Fujioka, Tadao Aikawa, Yasuharu Sato
  • Television receiver having an AGC circuit to control the gain on a tuner
    Patent number: 6333765
    Abstract: A television receiver includes an input terminal (12). Through the input terminal is inputted an input signal having a predetermined electric field intensity. That is, a tuner (14) converts the input signal into a video intermediate frequency signal and audio intermediate frequency signal. The video intermediate frequency signal is amplified by a video intermediate frequency amplifier circuit (16). Based on that frequency, a filter (26) outputs a detection signal (Va). An RF-AGC circuit (32) outputs a reference voltage (Vref). An RF-AGC circuit (30) creates a control voltage (Vb) in response to a difference between the detection signal and the reference voltage. The tuner is controlled in gain by this control voltage. The reference voltage is varied by a micro-computer (36) depending upon the control voltage. Accordingly, the control voltage is adjusted to a desired voltage value.
    Type: Grant
    Filed: August 30, 1999
    Date of Patent: December 25, 2001
    Assignee: Sanyo Electric Co., Ltd.
    Inventors: Hirofumi Okada, Munetoshi Kajiya
  • Destructive read type memory circuit, restoring circuit for the same and sense amplifier
    Patent number: 6333883
    Abstract: A restoring circuit 24, provided for each of the memory blocks 191 and 192, having registers and a selector for selecting one of the present row address and the output of the registers, provides the output of the selector to a word decoder 26. The present row address is held in one of the registers. When amplification is started by a sense amplifier 15, transfer gates 10 and 11 connected between the bit lines BL1 and *BL1 and the sense amplifier 15 are turned off to decrease the load of the sense amplifier 15, the amplified signal is stored in a buffer memory cell circuit 18, and accessing is completed with omitting restoring to the memory cell 12. While the memory cell block 191 is not selected, the data held in the buffer memory cell circuit 18 is stored into the memory cell row addressed by the content of the selected register. The sense amplifier 15 has PMOS and NMOS sense amplifiers.
    Type: Grant
    Filed: January 25, 2001
    Date of Patent: December 25, 2001
    Assignee: Fujitsu Limited
    Inventors: Shigetoshi Wakayama, Kohtaroh Gotoh, Miyoshi Saito, Junji Ogawa
  • Water based dispersions of percarboxylic acids
    Patent number: 6333300
    Abstract: Water-based dispersions of the &egr;-phthalimido peroxyhexanoic acid comprising as stabilizers copolymers of methyl-vinyl-ether with the acid and/or maleic anhydride, in 1:1 ratio with alternated structure, usable in detergent, hygienizing, cosmetic applications.
    Type: Grant
    Filed: August 2, 2000
    Date of Patent: December 25, 2001
    Assignee: Ausimont S.p.A.
    Inventors: Ugo Piero Bianchi, Claudio Troglia
  • Stator for outer rotor-type multi-pole generator
    Patent number: 6333579
    Abstract: In a stator for an outer rotor-type multi-pole generator, in which coils of an identical type but different from a coil wound around a particular one of cylindrical portions integrally included in a bobbin to cover a plurality of salient poles of a stator core, are wound around a pair of the cylindrical portions adjoining and located on opposite sides of the particular cylindrical portion, a recess concaved inwards in a radial direction of a core base is provided in a guide projection at a location corresponding to the particular one of the cylindrical portions, and a crossover wire is disposed in the recess. Thus, the particular cylindrical portion and the crossover wire can be insulated from each other to ensure a stable insulating property, while avoiding an increase in operating steps.
    Type: Grant
    Filed: March 20, 2000
    Date of Patent: December 25, 2001
    Assignee: Sawafuji Electric Co., Ltd.
    Inventors: Hidetoshi Hirano, Masayuki Tozuka
  • Propeller shaft and constant velocity universal joint for a propeller shaft
    Patent number: 6332844
    Abstract: The width (L) in the circumferential direction of the outer surface 2a of an inner joint member 2 is L≧3.5 mm. When the assembly angle (&thgr;0) of the torque transmitting ball 3 is set to 50°, the width (W) in the axial direction is set so that the ratio Rw (=W/PCDSERR) between the width (W) in the axial direction and the pitch circle diameter (PCDSERR) of the teeth of an engagement portion 2c lies within the range of 0.57<Rw≦0.95. Thus, while enabling the assembly of the torque transmitting ball at the assembly angle &thgr;0=50°, cold forging on the inner joint member 2 is made possible, thereby reducing the processing cost. By reducing the width (W) in the axial direction as much as possible, the weight, dimension, and material cost can be reduced.
    Type: Grant
    Filed: December 29, 1999
    Date of Patent: December 25, 2001
    Assignee: NTN Corporation
    Inventors: Yoshihiko Hayama, Haruo Nagatani
  • Semiconductor circuit with adjustment of double data rate data latch timings
    Patent number: 6333875
    Abstract: A semiconductor circuit which receives a strobe signal and a data signal includes a latch-signal-generation circuit which generates a first latch signal delayed by a first delay time relative to the strobe signal and a second latch signal inverted and delayed by a second delay time relative to the strobe signal, a control circuit which adaptively controls the latch-signal-generation circuit to adjust timings of the first and second latch signals such that the first delay time and the second delay time become substantially equal, and a latch circuit which latches the data signal at edge timings of the first and second latch signals.
    Type: Grant
    Filed: September 20, 2000
    Date of Patent: December 25, 2001
    Assignee: Fujitsu Limited
    Inventor: Naoharu Shinozaki
  • Variable gain amplifier with gain control voltage branch circuit
    Patent number: 6333675
    Abstract: A variable gain amplifier includes multiple unit variable gain amplifiers connected in series which amplify an input signal in accordance with their respective gains and generate a multi-stage amplified signal. A gain control circuit generates voltage control signals, one for each of the unit amplifiers, from a gain control input signal. The control signals control the respective gains of the unit amplifiers such that the gain of the first amplifier in the series is greater than the gain of the last amplifier in the series.
    Type: Grant
    Filed: April 6, 2000
    Date of Patent: December 25, 2001
    Assignee: Fujitsu Limited
    Inventor: Shinji Saito
  • Parallel shaft transmission
    Patent number: 6332371
    Abstract: A parallel shaft transmission comprising: an input shaft 1, first counter shaft 2, second counter shaft 3, output shaft 4 that are parallel to each other; set of two first change gear trains 21a, 22a, 21b, 22b disposed between the input shaft 1 and first conter shaft 2; first and second clutch means 11, 12 for connecting and disconnecting the input shaft 1 and first change drive gear; set of two second change gear trains 22a, 23a, 22c, 23c disposed between the first counter shaft 2 and second counter shaft 3; third and fourth clutch means for connecting ad disconnecting the second counter shaft 3 and second change driven gear; third change gear trains 23d, 24d disposed between the second counter shaft 3 and output shaft 4; and fifth clutch means 15 for connecting and disconnecting the first counter shaft 2 and output shaft 4.
    Type: Grant
    Filed: May 31, 2000
    Date of Patent: December 25, 2001
    Assignee: Honda Giken Kogyo Kabushiki Kaisha
    Inventors: Tatsuyuki Ohashi, Tomonari Shirai
  • Cup-type plating apparatus and method for plating wafer using the same
    Patent number: 6332963
    Abstract: A cup-type plating apparatus includes a plating tank having a support section provided on an upper end thereof for holding a wafer; a solution feed section provided at the center of a bottom portion of the plating tank; an anode disposed within the plating tank; and a diaphragm for separating the anode from the wafer. The diaphragm is slanted upward from the solution feed section toward the periphery of the plating tank. A gas release port is provided in the plating tank at such a position as to release bubbles collected under an upper end portion of the diaphragm.
    Type: Grant
    Filed: September 24, 1999
    Date of Patent: December 25, 2001
    Assignee: Electroplating Engineers of Japan Limited
    Inventors: Yasuhiko Sakaki, Mika Kurihara
  • Disc reproducing apparatus for determining a track jump
    Patent number: 6333901
    Abstract: A disc reproducing apparatus is provided which is adapted to scan information tracks to read information recorded on an information recording medium. This disc reproducing apparatus comprises: determining means capable of determining an actually happened track jump, said determining being effected when a difference between a present reproducing positional information and a reference reproducing positional information is larger than a predetermined value; detecting means for detecting a present track position which is just being reproduced at a present time; and setting means for setting said predetermined value corresponding to the present track position, in accordance with a result of the detecting means.
    Type: Grant
    Filed: October 25, 1999
    Date of Patent: December 25, 2001
    Assignee: Pioneer Corporation
    Inventors: Kazunori Matsuo, Yasutaka Suzuki, Masakazu Takahashi, Yoshimichi Nishio, Hideaki Watarihana, Hiroki Goto, Teruo Takahashi, Kiyoshi Furukawa, Hiroyuki Kobayashi, Hidetsugu Kubota, Takuya Abe
  • Process for the industrial production of high purity hydrogen peroxide
    Patent number: 6333018
    Abstract: Process for the industrial production of hyperpure hydrogen peroxide also having high titre up to 60-70% by weight characterized in that the hydrogen peroxide produced in an industrial plant is directly fed to a purification unit, being part of the same production plant, in which the inverted osmosis, separation of the the high purity permeate flow and direct recycle of the concentrated flow to the production plant, are carried out.
    Type: Grant
    Filed: January 15, 1999
    Date of Patent: December 25, 2001
    Inventors: Ugo Piero Bianchi, Umberto Leone, Mauro Lucci
  • Analog to digital converter using remainder feedback loop
    Patent number: 6333709
    Abstract: According to the present invention, various logic circuits, AD converters, DA converters and counter circuits can be constituted with a small number of transistors by employing a capacitive coupling circuit.
    Type: Grant
    Filed: December 21, 2000
    Date of Patent: December 25, 2001
    Assignee: Fujitsu Limited
    Inventor: Yoshihiro Miyamoto
  • Distributor rotor
    Patent number: 6333474
    Abstract: A distributor rotor for use with an after market distributor cap that is secured to a computer controlled electronic distributor that distributes voltages to spark plugs in internal combustion engines by a distributor cap adapter. The distributor rotor is injection molded and has a stainless steel spring contact and a metallic contact overlaid the stainless steel spring contact, thereby relocating the critical electrical contacts to a desired location when used with the after market distributor cap.
    Type: Grant
    Filed: August 24, 2000
    Date of Patent: December 25, 2001
    Assignee: Metro Motorsports, Inc.
    Inventor: Joseph R. Aluise, Sr.
  • Evaporative emission control system for internal combustion engine
    Patent number: 6330879
    Abstract: Disclosed herein is an evaporative emission control system which can prevent changes in fuel component in the fuel tank and vacuum boiling in the fuel pump to thereby accurately control the air-fuel ratio to a desired value and ensure smooth supply of the fuel. The control system includes an evaporative fuel passage for connecting a fuel tank and an intake system of an internal combustion engine, and a control valve is provided in the evaporative fuel passage for opening and closing the evaporative fuel passage. It is determined whether or not a pressure in the tank is higher than or equal to a pressure value obtained by adding a pressure in the intake system. If the pressure in the tank is higher than or equal to the pressure value, the opening operation of the control valve is enabled.
    Type: Grant
    Filed: June 27, 2000
    Date of Patent: December 18, 2001
    Assignee: Honda Giken Kogyo Kabushiki Kaisha
    Inventors: Toru Kitamura, Norio Suzuki, Naohiro Kurokawa, Tetsuya Ishiguro
  • Driving force control device for four-wheel drive vehicle
    Patent number: 6330928
    Abstract: A driving force control device for a four-wheel drive vehicle including one pair of front or rear driven wheels which are driven directly by a prime mover and another pair of front or rear driven wheels which are driven via a hydraulic clutch, a first hydraulic pump which is driven by being operatively connected to the one pair of driven wheels, and a second hydraulic pump which is driven by being operatively connected to the other pair of driven wheels. The engagement force of the hydraulic clutch is controllable based on the difference in rotation of the first and second hydraulic pumps. The torque transmission to the other pair of the front or rear driven wheels can thus be controlled according to the driving conditions of the vehicle.
    Type: Grant
    Filed: June 1, 2000
    Date of Patent: December 18, 2001
    Assignee: Honda Giken Kogyo Kabushiki Kaisha
    Inventors: Shigenobu Sekiya, Hiroyuki Matsuo, Keiichi Takahashi, Yasunori Arai
  • Overhead wire
    Patent number: 6331677
    Abstract: An overhead cable includes an outermost surface formed by twisting together a plurality of segment strands. A plurality of spiral grooves form recesses having substantially rectangular cross-sections and are provided at intervals in a circumferential direction of either the outer surface of the segment strands or the outer surface regions of boundary portions where twisted segment strands adjoin each other. Thin segment strands and at least one thick segment strand form the outermost layer. A recessed portion is provided at one side surface among two surfaces of the segment strands forming the outermost layer, a projecting portion is provided at the other side surface, and the strands are twisted together so that the recessed portions and the projecting portions mate.
    Type: Grant
    Filed: October 28, 1999
    Date of Patent: December 18, 2001
    Assignees: The Furukawa Electric Co., Ltd., The Kansai Electric Power Co., Inc.
    Inventors: Takeo Munakata, Naoshi Kikuchi, Takashi Shinohara, Hideo Banse, Takao Kaneko, Hiroji Akasaka, Yukikatsu Aida, Naoyoshi Shimokura, Yuji Ishikubo, Tetsuya Okada, Tamezo Suzuki
  • Control device of an internal combustion engine
    Patent number: 6330869
    Abstract: A controller for an internal combustion engine has a hydraulic valve characteristic changing mechanism for changing valve operating characteristics of suction and exhaust valves; a valve system provided with a hydraulic valve phase variable mechanism that changes the phase; a map that stores a fuel injection quantity and an ignition timing in response to the valve operating characteristics; and delay time setting means for setting a delay time required to complete changeover of the valve operating characteristics, based on operating oil properties detected from behavior of a valve phase variable mechanism, to change the map after the delay time has elapsed. Thus, a valve operating characteristic changing timing coincides with a map changing timing to thereby achieve an improved performance of the internal combustion engine.
    Type: Grant
    Filed: May 8, 2000
    Date of Patent: December 18, 2001
    Assignee: Honda Giken Kogyo Kabushiki Kaisha
    Inventors: Koichi Yoshiki, Keiji Tsujii
  • Container
    Patent number: D452075
    Type: Grant
    Filed: July 26, 2000
    Date of Patent: December 18, 2001
    Assignee: California Innovations Inc.
    Inventor: Melvin S. Mogil