Patents Represented by Attorney, Agent or Law Firm Plotkin & Kahn PLLC
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Patent number: 6520842Abstract: A cup-shaped grindstone for grinding an end face of an annular portion of a work to form tooth grooves in the end face includes a grinding portion provided around an outer periphery of a disk portion. Abrasive grains of CBN are electrodeposited on each of first, second and third grinding faces of the grinding portion. Cooling-liquid ejecting bores are provided in a lower end of the first grinding face. To form the tooth grooves, the following steps are carried out: a rough-finish processing step cuts the tooth grooves by intermittently feeding the cup-shaped grindstone in a predetermined amount at a time, and a finish processing step of finishing the tooth grooves by retaining the cup-shaped grindstone at a predetermined position after the rough-finish processing step. During both steps, a cooling liquid is supplied from cooling-liquid ejecting bores defined in the first grinding faces of the cup-shaped grindstone.Type: GrantFiled: August 31, 2001Date of Patent: February 18, 2003Assignee: Honda Giken Kogyo Kabushiki KaishaInventors: Shigenori Yasuie, Takeshi Morioka
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Patent number: 6522690Abstract: A zero determination signal generating circuit which generates a zero determination signal for determining whether or not the output data of a shifter is zero is provided. With the zero determination signal generating circuit of the present invention, high-speed zero determination can be achieved. More specifically, in a case where the shifter functions as a left shifter, as a shifting operation of a left shifter unit (including a plurality of left shifters) is performed, predetermined bits in the outputs of left shifters having a shift amount of 0 are subjected to an OR operation or buffered so as to generate a zero determination signal. In a case where the shifter functions as a right shifter, as a shifting operation of a right shifter unit (including a plurality of right shifters) is performed, predetermined bits in the outputs of right shifters having a shift amount of 0 are subjected to an OR operation or buffered so as to generate a zero determination signal.Type: GrantFiled: March 20, 2000Date of Patent: February 18, 2003Assignee: Fujitsu LimitedInventor: Masato Tatsuoka
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Patent number: 6521883Abstract: This invention provides a photovoltaic device including an n-type microcrystalline Si layer, an i-type microcrystalline SiGe layer, and a p-type microcrystalline Si layer laminated on a substrate and using a thin microcrystalline silicon based semiconductor layer as a photoactive layer. The i-type microcrystalline SiGe layer is a microcrystalline SiGe layer which a Ge composition ratio is 20-40 at. %, a signal intensity of a Ge—Ge bond is 30-60% of a signal intensity of a Si—Si bond observed by the Raman spectroscopy, and a signal intensity of a Si—Ge bond is between those of the above two signal intensities.Type: GrantFiled: July 11, 2001Date of Patent: February 18, 2003Assignee: Sanyo Electric Co., Ltd.Inventor: Masao Isomura
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Patent number: 6522491Abstract: A magnetoresistive element input circuit includes a first resistor connected between a magnetoresistive (MR) element and a first power source. A first current source is connected between the MR element and a second power source and supplies a DC bias current to the MR element in an active mode. A second resistor is connected between the MR element and the first current source. A capacitor is connected to a node between the second resistor and the first current source and to the first power supply. A differential amplifier is connected to the MR element. A voltage supply circuit is connected to the node and supplies the node with a voltage, when the input circuit is in an inactive mode, which is substantially equal to the voltage supplied to the node when the input circuit is in the active mode.Type: GrantFiled: July 25, 2000Date of Patent: February 18, 2003Assignee: Fujitsu LimitedInventor: Takumi Kawai
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Patent number: 6522105Abstract: When charging a battery of a low-voltage system, a battery charging apparatus of the present invention switches on a field-effect transistor and distributes the output of a generator via a diode to the battery. Further, when charging a battery of a high-voltage system, the battery charging apparatus switches off the field-effect transistor and distributes the output of the generator via the diode to the battery. At this time, the field-effect transistor is switched, and chops the output of the generator. Then, by selecting the duty of a clock signal for controlling this switching, the output powers of the generator when charging the high-voltage system and when charging the low-voltage system are made substantially equal, reducing fluctuation in the input torque of the generator.Type: GrantFiled: October 22, 2001Date of Patent: February 18, 2003Assignees: Shindengen Electric Manufacturing Co., Ltd., Honda Giken Kogyo Kabushiki KaishaInventors: Koji Kodama, Masaharu Kaneko, Kazuyuki Kubo, Tadashi Fujiwara
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Patent number: 6519269Abstract: A wavelength tuneable laser source with an external cavity and utilizing an interferometer having a reciprocal output and a non-reciprocal output. The laser source includes an amplifier medium, a cavity comprising two reflectors and a source beam extraction system, a diffraction grating located in the cavity. At least one of the two reflectors are rotatable so as to tune a wavelength. The source beam extraction mechanism includes a beam splitter for splitting an input beam into first and second secondary beams. The first and second secondary beams are parallel to one another. The source beam extraction mechanism also includes a retro-reflecting mechanism for redirecting the first and second secondary beams toward the beam splitter. A non-reciprocal output beam is obtained from a reciprocal source beam using the interferometer.Type: GrantFiled: February 14, 2000Date of Patent: February 11, 2003Assignee: PhotoneticsInventor: Hervé Lefevre
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Patent number: 6517398Abstract: An outboard motor equipped with a V-type engine is provided, in which an intake manifold and an auxiliary fuel tank are arranged rationally, thereby contributing to making the engine compartment compact. The outboard motor includes, in an engine compartment formed above a mount case, a V-type engine positioned so that heads of left and right cylinder banks face rearward. An intake manifold is disposed in a hollow between the left and right banks. An auxiliary fuel tank is disposed in an auxiliary equipment installation space that is formed between the left and right banks and the upper face of the mount case.Type: GrantFiled: February 13, 2002Date of Patent: February 11, 2003Assignee: Honda Giken Kogyo Kabushiki KaishaInventors: Tetsu Wada, Tomonori Ikuma, Sadafumi Shidara
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Patent number: 6518845Abstract: A voltage-controlled oscillator outputs a signal of a frequency controlled by a voltage of an input signal, the output signal being used for feedback as an internal change signal. A phase comparator detects a phase difference between the internal change signal and an external reference signal. A charge pump outputs the signal having the voltage based on the phase difference to the voltage-controlled oscillator via a low-pass filter. The charge pump is controlled so that the voltage of the signal input to voltage-controlled oscillator becomes a voltage for oscillating a lock frequency. When instruction of changing the lock frequency is input, and/or a phase inversion of the internal change signal used for feedback in a locking-up operation rendered in response to the instructions is detected, a control is made such that an absolute value of an output current of the charge pump is increased.Type: GrantFiled: March 16, 2001Date of Patent: February 11, 2003Assignee: Fujitsu LimitedInventor: Hiroto Nakamichi
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Patent number: 6517502Abstract: An orthotic device includes a pair of panel members and a mechanical advantage device that bridges the pair of panel members together to form a belt with two free end portions detachably connectable to each other. The mechanical advantage device has a drawstring element that causes the mechanical advantage device to move from an expanded state wherein the bridged end portions are disposed apart from one another to a contracted state wherein the respective bridged end portions are drawn towards each other. Methods are also described. One method includes the steps of donning the orthotic device about the patient's chest, connecting the free end portions of the orthotic device together with the mechanical advantage device in the expanded state, and pulling the drawstring element a selected distance to move the mechanical advantage device from the expanded state to the contracted state for a desired level of tightening.Type: GrantFiled: January 17, 2001Date of Patent: February 11, 2003Assignee: Biocybernetics InternationalInventors: Arnold M. Heyman, Tom Heinz
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Patent number: 6518367Abstract: A rubber composition comprising a vulcanizable rubber, a reinforcing filler, a softening agent, and other reagents for rubber to which is added in a specific amount of a sulfur compound having the formula (I): —(SxR1)n— (I) wherein R1 represents an organic group, x is a number of 3 to 5 on average, and n is an integer of 1 to 100, or a specific sulfur compound (1) and sulfur (2), and optionally a thiazole base, sulfenamide base, thiuram base, and/or diothio acid base vulcanization accelerator (3).Type: GrantFiled: February 15, 2000Date of Patent: February 11, 2003Assignee: The Yokohama Rubber Co., Ltd.Inventors: Fumito Yatsuyanagi, Kazunori Ishikawa, Shuichi Fukutani
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Patent number: 6519528Abstract: A vehicle navigation apparatus that does not output an inappropriate or irrelevant guidance picture display or spoken guidance even when the vehicle enters an area off the roads (e.g. a parking lot, campus, factory, or facility grounds, or park) stored in the apparatus' road map data base, and which provides a correct guidance picture display and a correct spoken guidance for navigation to a destination. When the apparatus detects entry of the vehicle into such an area off the roads stored in the map data base, a guidance picture is changed to a map picture, and the apparatus stops correcting the vehicle position by map matching. When the apparatus detects an exit of the vehicle from such an area, the apparatus restarts correcting the vehicle position by map matching and a map picture is changed to a guidance picture.Type: GrantFiled: February 6, 2002Date of Patent: February 11, 2003Assignees: Alpine Electronics Inc., Honda Giken Kogyo Kabushiki KaishaInventors: Kouichi Endo, Yoshikazu Sato, Kan Shishido
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Patent number: 6516772Abstract: In a direct injection spark ignition engine which is operable in lean-burn operation modes including a pre-mixture combustion mode and a stratified combustion operation mode and a stoichiometric air/fuel ratio operation mode, which are different in the desired air/fuel ratio. The degradation of combustion state is detected through misfire detection and if it is determined to be degraded, the desired air/fuel ratio, the EGR flow rate and the ignition timing are changed when the engine is operated in the stratified combustion operation mode, while the desired air/fuel ratio, the EGR flow rate and the purge flow rate are changed when the engine is operated in the pre-mixture combustion operation mode, thereby ensuring to suppress the combustion state degradation effectively.Type: GrantFiled: July 16, 2001Date of Patent: February 11, 2003Assignee: Honda Giken Kogyo Kabushiki KaishaInventors: Masaki Ueno, Yasunori Ehara, Masahiro Sato, Ken Ogawa, Isao Komoriya
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Patent number: 6517132Abstract: A multifinger hand device has a plurality of finger mechanisms extending from a palm unit. The finger mechanisms include a finger mechanism corresponding to a thumb and other finger mechanisms. Joints of the finger mechanism corresponding to the thumb include a joint closest to the palm unit and having a rotational axis about which the joint is rotatable, the rotational axis extending substantially perpendicularly to the rotational axis of a joint, closest to the palm unit, of one of the other finger mechanisms. The joints, closest to the palm unit, of the other finger mechanisms have respective rotational axes about which the joints are rotatable and which are slightly inclined to each other and extend substantially perpendicularly to a main palm plate of the palm unit. The other finger mechanisms have link mechanisms closest to the palm unit which are fixed to the palm unit with their respective rotational axes being inclined to each other.Type: GrantFiled: April 3, 2001Date of Patent: February 11, 2003Assignee: Honda Giken Kogyo Kabushiki KaishaInventors: Hiroshi Matsuda, Kazuhiro Kishimoto
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Patent number: 6518352Abstract: Mixtures of fluoropolymer dispersion, wherein: a) a dispersion is formed by TFE (co)polymers with average particle sizes in the range 180-400 nm; b) another dispersion selected from: 1) (co)polymer dispersion of TFE; 2) thermoplastic copolymers of TFE; the average particle sizes of dispersion b) range from 20 to 60 nm; the ratio between the particle sizes of dispersion b) compared with those of dispersion a) is lower than 0.3.Type: GrantFiled: June 30, 1999Date of Patent: February 11, 2003Assignee: Ausimont S.p.A.Inventors: Mario Visca, Daria Lenti, Marco Malvasi, Enrico Marchese
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Patent number: 6516619Abstract: A method of storing a gas comprises absorbing a gas into or onto an absorbent medium, in one example by cryosorbing the gas. The cryosorbed gas is then encapsulated. Encapsulating the cryosorbed gas increases the temperature at which the absorbent medium can be kept before the cryosorbed gas is released. The encapsulation layer can be provided by freezing a material that has a lower vapour pressure than the gas. One suitable material for forming the encapsulation layer in this way is water.Type: GrantFiled: March 26, 2001Date of Patent: February 11, 2003Inventor: Roy Clampitt
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Patent number: 6518916Abstract: This invention relates to an object recognition apparatus. This apparatus comprises an antenna which emits transmission beams toward a plurality of directions; a receiving circuit which receives reflected signals of the transmission beams from predetermined directions; a distance and direction calculation circuit which calculates distance and direction to objects reflecting the transmission beams based on the transmission beams and the reflected signals; an object pattern storage unit which stores range direction patterns of reflected signals obtained in advance with respect to predetermined objects; an object recognition circuit which compares range direction patterns of the reflected signals received by the receiving circuit with respect to the predetermined directions, with the range direction patterns stored in the object pattern storage unit, and which recognize that a pair of reflected signals from two neighboring directions are signals reflected by the same object.Type: GrantFiled: October 19, 2000Date of Patent: February 11, 2003Assignee: Honda Giken Kogyo Kabushiki KaishaInventors: Jun Ashihara, Takashi Sugawara, Hiroshi Kudoh
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Patent number: 6513333Abstract: A surge detection system for detecting a surge occurred at a compressor of a gas turbine aeroengine having a turbine connected to the compressor. In the system, the ratio between the compressor outlet pressure and its differential and the differential of the turbine inlet temperature (or the ratio between the turbine inlet temperature and its differential) are calculated. Then, the calculated value are multiplied together and the product is compared with a threshold value. When the product is less than the threshold value, it is determined that a surge occurred at the compressor. With this, a surge occurred at the compressor and a magnitude or degree of the surge occurred may be accurately detected.Type: GrantFiled: May 23, 2001Date of Patent: February 4, 2003Assignee: Honda Giken Kogyo Kabushiki KaishaInventor: Yukinobu Sugitani
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Patent number: 6513544Abstract: A compressor valve comprising at least one valve port opening and a flexible valve member located over the at least one valve port for controlling gas flow therethrough, wherein the compressor valve is adapted to cause elements of the valve member to vibrate at least substantially out of phase during operation of the compressor valve.Type: GrantFiled: August 11, 2000Date of Patent: February 4, 2003Assignee: Orbital Engine Company (Australia) Pty LimitedInventors: Nabil Habib Farag, David Robert Bowden
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Patent number: 6514773Abstract: Subject matter of the invention is a method for detecting surface contamination by an analyte by wiping the analyte off the surface with the aid of a wiping surface, eluting the analyte from the wiping surface with an eluant, and detecting the analyte in the eluate in an immunological detection reaction, characterized in that: a) the surface to be tested for the analyte is wiped with a wiping surface, b) the wiping surface is brought into contact with the planar surface of a capillary active, chromatographic test strip which has an eluant application zone at its one end and a target zone at its other end whereby contact is made in an area between these two zones, c) eluting liquid is applied onto the zone provided for this purpose, said liquid moving toward the target zone passes the contact site with the wiping surface as a consequence of capillary forces, whereby analyte is taken up by the eluant, and d) in the target zone, the analyte is measured in an immunological binding reaction.Type: GrantFiled: July 24, 1995Date of Patent: February 4, 2003Assignee: Securetec Detektions-Systeme AGInventors: Christian Klein, Hans-Peter Josel, Ada Goerlach-Graw, Reinhold Hilpert, Florian Binder, Josef Ritter, Rudolf Zimmermann
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Patent number: 6516254Abstract: A control device for a hybrid vehicle includes an actual intake gas negative pressure detection unit which detects an intake air negative pressure for the engine, an estimated intake gas negative pressure calculation unit which estimates an intake air negative pressure based on a revolution number of the engine and an opening degree of a throttle, and an engine control unit which compares an actual intake gas negative pressure obtained by the actual intake gas negative pressure detection unit with an estimated intake gas negative pressure obtained by the estimated intake gas negative pressure calculation unit. The engine control unit prohibits a fuel supply to the engine until the actual intake gas negative pressure matches the estimated intake gas negative pressure, and carries out the fuel supply to the engine when the actual intake gas negative pressure matches the estimated intake gas negative pressure.Type: GrantFiled: July 25, 2002Date of Patent: February 4, 2003Assignee: Honda Giken Kogyo Kabushiki KaishaInventors: Teruo Wakashiro, Atsushi Matsubara, Tomoharu Kamo, Kan Nakaune, Yasuo Nakamoto