Patents Represented by Attorney, Agent or Law Firm Plotkin & Kahn PLLC
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Patent number: 6516186Abstract: In an image-rejection receiver having a first frequency conversion stage (1, 2, 9) having a pair of frequency mixers (1,2) each supplied external radio frequency signal (RF) and first local frequency signal (LOCAL1) with quadrature phase relations (9), a second frequency conversion stage (3-6, 10) having two pairs of frequency mixers (3-4, 5-6) at each output of each first stage mixer and second local frequency signal (LOCAL2) with quadrature phase relations (10), and an adder (7) and a subtractor (8) for providing sum and difference of amplitude of outputs of said second frequency conversion stage to provide inphase component (BBI) and quadrature-phase component (BBQ), no filter is used for removing an undesirable image signal which is generated in frequency conversion. A control circuit (11) is provided to keep accurate quadrature phase relations for said first local frequency signal, and said second local frequency signal, by measuring D.C. component of a product of outputs of two of mixers.Type: GrantFiled: September 22, 1999Date of Patent: February 4, 2003Assignee: Nippon Telegraph and Telephone CorporationInventors: Akihiro Yamagishi, Tsuneo Tsukahara, Mitsuru Harada
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Patent number: 6513321Abstract: In an exhaust gas purifying apparatus of the present invention, oxygen sensors 18 and 20 are respectively located upstream, a close coupled three-way catalyst 14 positioned at the upstream end of an exhaust system, and downstream, in a under floor three-way catalyst 17 positioned at the downstream end. When an output VO2 of the oxygen sensor 20 exceeds a predetermined voltage VO2H2, the first correction coefficient KCMDLS is calculated in accordance with the output VO2 (S12 and S13). And when VO2≦VO2H2 is established, in accordance with the engine operating state the second correction coefficient KVMDR is set to a predetermined value KVMDR0 that is slightly greater than 1.0 (S16 to S18), and the target air-fuel ratio coefficient KCMD is corrected by using the correction coefficients KCMDLS and KCMDR (S21).Type: GrantFiled: December 12, 2000Date of Patent: February 4, 2003Assignee: Honda Giken Kogyo Kabushiki KaishaInventors: Norio Suzuki, Toru Kitamura
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Patent number: 6513482Abstract: Rotary type fluid machine includes a casing 7, a rotor 31 and a plurality of vane-piston units U1-U12 which are disposed in a radiate arrangement on the rotor 31. Each of the vane-piston units U1-U12 has a vane 42 sliding in a rotor chamber 14 and a piston 41 placed in abutment against a non-slide side of the vane 42. When it functions as an expanding machine 4, the expansion of a high pressure gas is used to operate the pistons 41 thereby to rotate the rotor 31 via vanes 42 and the expansion of a low pressure gas caused by a pressure reduction in the high pressure gas is used to rotate the rotor 31 via the vanes 41. On the other hand, when it functions as a compressing machine, the rotation of rotor 31 is used to supply a low pressure air to the side of pistons 41 via vanes 42 and further, the pistons 41 are operated by the vanes 42 to convert the low pressure air to the high pressure air.Type: GrantFiled: September 5, 2001Date of Patent: February 4, 2003Assignee: Honda Giken Kogyo Kabushiki KaishaInventors: Tsuneo Endoh, Kensuke Honma
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Patent number: 6514630Abstract: To provide a contact material suitable for a commutator of a micromotor which can improve wear resistance and prolong the life of the micromotor by improving an Au-based clad composite material provided at an outermost layer with Au or an Au alloy. The present invention provides the Au-based clad composite material including a surface of a contact substrate having an Ag—Cu—Si alloy layer cladded with Au or the Au alloy, wherein an intermetallic compound Cu—Si is dispersed and deposited in Au or the Au alloy.Type: GrantFiled: June 21, 2001Date of Patent: February 4, 2003Assignees: Sankyo Seiki Mfg. Co., Ltd., Tanaka Kikinzoku Kogyo K.K.Inventors: Mii Matsuzawa, Hirotaka Sakamaki, Osamu Matsuzawa
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Patent number: 6513485Abstract: There is disclosed a fuel injection control system for an in-cylinder fuel injection internal combustion engine, which is capable of properly determining a fuel injection time period such that the fuel injection time period reflects a fuel pressure and a deposition of fuel, thereby controlling the amount of fuel to be actually injected. Operating conditions of the engine are detected, and a required fuel amount is determined based on the detected operating conditions. At the same time, a deposited-fuel amount, i.e. an amount of fuel deposited in a combustion chamber, is determined based on the detected operating conditions, and the required fuel amount is corrected according to the determined deposited-fuel amount. Further, a fuel pressure of fuel to be injected into the cylinder is detected, and the fuel injection time period is determined by correcting the corrected required fuel amount according to the detected fuel pressure.Type: GrantFiled: March 26, 2001Date of Patent: February 4, 2003Assignee: Honda Giken Kogyo Kabushiki KaishaInventors: Ken Ogawa, Isao Komoriya
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Patent number: 6515905Abstract: Included are a memory cell array 10, a sense amplifier 21 for determining a cell storage value by comparing a signal value read out from an addressed EEPROM cell with a reference value, a counter 23 for activating an error signal ERR when the count reaches a set value CNmax, and a control circuit 14 for repeating a write or erase operation on a selected cell in response to an automatic write or erase command until the storage value coincides with an expected value, loading the set value CNmax into the counter 23 prior to starting the repetitions when a test signal is active, incrementing the counter 23 at each repetition, and abnormally terminating the repetitions when the error signal is activated.Type: GrantFiled: May 26, 2000Date of Patent: February 4, 2003Assignee: Fujitsu LimitedInventor: Norihisa Hikida
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Patent number: 6514567Abstract: Use of fluorinated compounds to confer release properties to cellulosic substrata, selected from the following structures: (A) [Rf—CFY—L—O]mP(O) (O−Z+)3−m (B) (O−Z+)2P(O)[O—L—YFC—O—Rf—CFY—L—O—P(O) (O−Z+)]m′——[O—L—YFC—O—Rf—CFY—L—O]P(O) (O−Z+)2 (C) Fluorinated (meth)acrylic copolymers (D) [Rt—CF2—SO2N(U1) (U2) —O]g—P(O) (OZ)3−g wherein: m′ is an integer from 0 to 20; L is an organic group selected from —CH2—(OCH2CH2)n—, —CO—NR′—(CH2)q—, with R′═H or C1-C4 alkyl group; n=0-8, q=1-8; Z═H, alkane metal or a NR4 group with R═H or C1-C4 alkyl group; Y═F, CF3; m=1,2,3; Rf is a perfluoropolyether radical; Rt is a linear or branched perfluorocarbon radical having fromType: GrantFiled: February 28, 2001Date of Patent: February 4, 2003Assignee: Ausimont S.p.A.Inventors: Gabriella Carignano, Mattia De Dominicis
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Patent number: 6513335Abstract: Provided is a device for supplying seal air to the bearings of a gas turbine engine which allows the seal pressure to be kept even between the front and rear gear boxes without complicating the passages for supplying the seal air to the bearing boxes. Sealing air drawn from a part of high pressure compressor is conducted through passages defined between the inner periphery of the rotors of the high pressure compressor and a high pressure turbine and the outer periphery of the outer shaft, and is distributed to the front and rear bearing boxes. By appropriately providing narrowed parts in these passages, seal air is evenly distributed between the front and rear bearing boxes. Thus, even in case of a failure of one of the oil seals, any concentrated leakage of the lubricating oil can be avoided.Type: GrantFiled: May 31, 2001Date of Patent: February 4, 2003Assignee: Honda Giken Kogyo Kabushiki KaishaInventor: Masayuki Fukutani
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Patent number: 6513661Abstract: An insulated pack has a main, insulated compartment suitable for holding refreshments at either a warmed or chilled temperature. It also has another compartment for valuables that has receptacles for such objects as cellular telephone handsets, wallets, and keys. It has a reinforced web framework structure, and a carrying handle mounted on the lid. Use of two of these packs, allows a user to keep different objects at different temperatures. The pack is particularly useful for attachment to a golf bag or golf cart to provide cool drinks during a round of golf.Type: GrantFiled: May 29, 2001Date of Patent: February 4, 2003Assignee: California Innovations Inc.Inventor: Melvin S. Mogil
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Patent number: 6515927Abstract: During a read operation, data read from memory cells onto bit lines are amplified simultaneously by sense amplifiers and outputted to the exterior of a memory. In this operation, a data control circuit outputs to the exterior all the data read from the memory cells onto the bit lines and amplified simultaneously by the sense amplifiers. During a write operation, data supplied from the exterior to the bit lines are amplified by the sense amplifiers and written into the memory cells. In this operation, the data control circuit writes into the memory cells all the data inputted from the exterior and amplified simultaneously by the sense amplifiers. Since all the data amplified simultaneously by the sense amplifiers are inputted/outputted from/to the exterior, the data transfer rate of the input/output data can be improved and the power consumption per unit amount of transferred data can be reduced.Type: GrantFiled: February 7, 2002Date of Patent: February 4, 2003Assignee: Fujitsu LimitedInventors: Ayako Kitamoto, Masato Matsumiya
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Patent number: 6513292Abstract: A building panel formed by extruding a mixture of wooden and/or bamboo powder and a binding agent. Its panel body comprises (i) a door panel extending in the direction of extrusion, (ii) a pair of longitudinal frame members formed in the direction of extrusion on the right and left sides of the door panel, and (iii) a panel strip formed in the direction of extrusion at the center of the door panel. The door panel, the paired longitudinal frame members, and the panel strip are formed as a single piece. The door panel and the panel strip are cut short at their upper and lower ends so that the upper and lower ends of the longitudinal frame members stand out beyond the cut ends of the door panel and the panel strip, the standing-out portions constituting tenons.Type: GrantFiled: April 6, 2000Date of Patent: February 4, 2003Assignee: Kumon Building Constructor's Office, Inc.Inventor: Shigetomi Kumon
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Patent number: 6516378Abstract: The present invention provides a microprocessor capable of improving the throughput of a CPU. Module like the program ROMs in which instruction accesses are concentrated by a CPU are put together in a first Princeton bus, and modules like the external bus I/F, SDRAM I/F, peripheral bus I/F in which data accesses are mainly concentrated are put together in a second Princeton bus. Therefore, the instruction access and the data access can be carried out in parallel with respect to the buses of the instruction bus and the data bus individually through a bus control unit. Because the buses can be used efficiently, the throughput of the CPU can be improved substantially.Type: GrantFiled: October 26, 1999Date of Patent: February 4, 2003Assignee: Fujitsu LimitedInventors: Hiroyoshi Yamashita, Masaaki Tani
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Patent number: 6514803Abstract: In a thin film semiconductor device having a substrate (1), an active layer (3, 6, 9), a gate insulation layer (4), and a gate electrode (5), said active layer is produced through the steps of producing an amorphous silicon layer on said substrate through a CVD process by using a gas made up of poly silane SinH2(n+1), where n is an integer, and chloride gas, and effecting solid phase growth to produce said amorphous silicon layer. The addition of chlorine to the CVD gas used in producing the amorphous silicon layer makes it possible to produce the amorphous silicon layer at a lower temperature with a rapid growth rate. A thin film semiconductor device thus produced has the advantages of high mobility and low threshold voltage.Type: GrantFiled: November 4, 1997Date of Patent: February 4, 2003Assignees: TDK Corporation, Semiconductor Energy Laboratory Co., Ltd.Inventors: Michio Arai, Isamu Kobori
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Patent number: 6516430Abstract: A semiconductor device having multiple memory circuits and one or more logic sections includes a single test circuit for testing all of the memory circuits. The test circuit includes a test section that controls the memory circuits, for example, by initiating a read operation, with a control signal. Comparison/determination circuits, which correspond to the memory circuits, compare the data read from the memory circuits with expected value data, and generate determination signals. Since the various memory circuits are different distances (wire lengths) from the test section, a control section is provided which adds a delay to the control signal provided to the various memory circuits so that the memory circuits all receive the control signal at about the same time and perform their respective read operations at the same time.Type: GrantFiled: December 15, 1999Date of Patent: February 4, 2003Assignee: Fujitsu LimitedInventors: Kiyonori Ogura, Eisaku Itoh
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Patent number: 6513506Abstract: A collecting exhaust port 18 provided in a, cylinder head 12 is comprised of exhaust port sections 46 extending from exhaust valve bores 35 in cylinders 14, and an exhaust collecting section 47 in which the exhaust port sections 46 are collected. The cylinder head 12 includes a protrusion 49 projecting in an arch shape outside a side wall 111 of a cylinder block 11. The exhaust collecting section 47 of the collecting exhaust port 18 directly faces an inner surface of a side wall 121 of the protrusion 49. Water jackets J2 and J3 for cooling the protrusion 49 are provided in upper and lower surfaces of the protrusion 49 having the collecting exhaust port 18 defined therein. The water jackets J2 and J3 are not provided between the side wall 121 of the protrusion 49 and the exhaust collecting section 47. Thus, the compact cylinder head 12 having the collecting exhaust port 18 integrally provided therein can be formed, while avoiding the complication of the structure of a core.Type: GrantFiled: May 20, 1999Date of Patent: February 4, 2003Assignee: Honda Giken Kogyo Kabushiki KaishaInventors: Yasutoshi Ito, Sadao Kojima, Teruo Kobayashi, Masakatsu Honda, Shinji Yamada, Masaki Kanehiro, Naohiro Isogai
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Patent number: 6514732Abstract: A process for preparing baccatin and/or baccatin derivatives is described in which 10-deacetylbaccatin or a 10-deacetylbaccatin derivative is reacted in the presence of an isolated enzyme and an acetyl donor, the enzyme used being an acetyl transferase having a molecular weight of from 70 to 72 kD, determined by SDS-PAGE, which acetyl transferase is obtainable from Taxus chinensis cell cultures.Type: GrantFiled: July 20, 2000Date of Patent: February 4, 2003Assignee: Indena S.p.A.Inventors: Ezio Bombardelli, Birgitta Menhard, Meinhart Hans Zenk
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Patent number: 6512747Abstract: In an ATM transmission system in which a plurality of ATM cells are grouped to a packet with an end of ATM cell having an EOP (End Of Packet) flag, a transmitting station comprises a transmit buffer for storing temporarily ATM cells to be transmitted, a transmit cell process means which discards all the ATM cells in the group in case that a NAK response indicating loss or wrong reception of an ATM cell is received from a receiving station, and an EOP cell generator for transmitting an EOP cell which has said EOP flag in stead of the discarded ATM cells. As no ATM cell in a packet is transmitted after an erroneous ATM cell is detected, no useless ATM cell which would be discarded in a destination terminal equipment because of an erroneous ATM cell occupies a transmission line when an erroneous ATM cell is detected, and traffic is saved.Type: GrantFiled: March 4, 1999Date of Patent: January 28, 2003Assignee: Nippon Telegraph and Telephone CorporationInventors: Makoto Umeuchi, Masamitsu Nakura, Masahiro Umehira
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Patent number: 6512717Abstract: A semiconductor memory device includes a core area formed of memory blocks each having a relaxed sense amplifier arrangement, a data bus including data bus lines corresponding to the memory blocks, a plurality of input/output terminals provided in number corresponding to the data bus lines forming the data bus, and a data path switch circuit provided between the data bus the input/output terminals for providing interconnection paths between the input/output terminals and the data bus lines, wherein the data path switch circuit switches a part of the interconnection paths in response to a switch control signal such that the input/output terminals are connected respectively to predetermined memory cells located at respective, predetermined physical locations in any of the memory blocks.Type: GrantFiled: July 29, 1996Date of Patent: January 28, 2003Assignee: Fujitsu LimitedInventors: Satoshi Eto, Masato Matsumiya, Shusaku Yamaguchi, Toshikazu Nakamura, Hideki Kano, Ayako Kitamoto, Mitsuhiro Higashiho
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Patent number: 6511848Abstract: A method for culturing and/or multiplying lymphocytes in cell culture medium which contains as lymphocyte growth factor and additionally, aurin tricarboxylic acid, ciclosporin, tacrolimus, and/or ascomycin.Type: GrantFiled: November 12, 1998Date of Patent: January 28, 2003Assignee: Winfried AlbertInventors: Herbert Jungfer, Heinrich Barchet, Winfried Albert
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Patent number: 6511736Abstract: An ink jet recording material having excellent gloss and capable of recording thereon clear ink images having a high color density includes a multi-layered ink fixing layer, formed on a substrate material and composed of an outermost ink fixing layer, and one or more intermediate ink fixing layers superposed on each other, and each includes a binder and a pigment selected from silica, aluminosilicate, alumina and zeolite, the pigment in each ink fixing layer being in the form of fine secondary particles having an average secondary particles size of 1 &mgr;m or less and each secondary particle is composed of a plurality of primary particles agglomerated with each other, and the outermost ink fixing layer being one formed by a cast-coating procedure using a specular casting surface.Type: GrantFiled: April 26, 2000Date of Patent: January 28, 2003Assignee: Oji Paper Co., Ltd.Inventors: Shinichi Asano, Shunichiro Mukoyoshi, Hirokazu Sunagawa