Patents Represented by Law Firm Antonelli, Terry & Wands
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Patent number: 4935415Abstract: UCN-01 having an anti-tumor activity and an anti-bacterial activity is produced by culturing a microorganism belonging to the genus Streptomyces.Type: GrantFiled: March 20, 1987Date of Patent: June 19, 1990Assignee: Kyowa Hakko Kogyo Co., Ltd.Inventors: Hirofumi Nakano, Isami Takahashi, Tatsuya Tamaoki, Fusao Tomita, Isao Kawamoto, Kozo Asano, Makoto Morimoto, Hisayo Nomoto
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Patent number: 4935285Abstract: A ceramic substrate for densely integrated semiconductor arrays which is superior in a coefficient of thermal expansion, dielectric constant, strength of metallized bond, and mechanical strength, comprising a sintered body composed essentially of mullite crystals and a non-crystralline binder composed of SiO.sub.2, Al.sub.2 O.sub.3, and MgO, is provided.Type: GrantFiled: December 6, 1988Date of Patent: June 19, 1990Assignee: Hitachi, Ltd.Inventors: Gyozo Toda, Takashi Kuroki, Shousaku Ishihara, Naoya Kanda, Tsuyoshi Fujita
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Patent number: 4934823Abstract: In a staging method and system for an unrewritable storage medium such as an optical disk in which the updating or deletion of stored information is possible only by annotatively recording information concerning the updating or deletion, information stored in the medium before any alteration or charge including addition, updating and deletion is made to the medium is staged on a staging file while positions of the read or staged information are stored on a management file. Thereafter, the last end of the information staged on the staging file is detected by referring to the information positions stored on the management file. Then, information concerning the addition is additionally recorded at a location on the staging file after the previously staged information while information concerning the updating or deletion is used to update or delete the information on the staging file at a location indicated by the information concerning the updating or deletion.Type: GrantFiled: November 6, 1987Date of Patent: June 19, 1990Assignee: Hitachi, Ltd.Inventor: Yoshinori Okami
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Patent number: 4934328Abstract: A method for feedback controlling air-fuel ratio of the mixture supplied to an internal combustion engine having a plurality of cylinders comprises the steps of, detecting respective air-fuel ratios of the exhaust gas from the respective cylinders with an air-fuel ratio sensor having a substantially linear output characteristic; calculating an average air-fuel ratio by using the latest detected air-fuel ratios of the respective cylinders; determining a fundamental feedback correction coefficient .beta..sub.0 for a cylinder of which air fuel ratio is feedback controlled next; retrieving a learning correction coefficient .beta..sub.1 for the cylinder of which air-fuel ratio is feedback controlled next from a learning map prepared by learning for the corresponding cylinder; and determining new learning correction coefficients .beta..sub.Type: GrantFiled: February 14, 1989Date of Patent: June 19, 1990Assignee: Hitachi, Ltd.Inventors: Junichi Ishii, Matsuo Amano, Nobuo Sato, Nobuo Kurihara
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Patent number: 4932352Abstract: The invention provides a method and device for impregnating at least one elongate element by transferring a thermostabilizable substance from a supply station by means of a supply means, the element being moved in front of the transfer means which includes a mobile surface passing in front of the station then in front of the element, the substance being deposited on the surface in said station and being transferred therefrom at least partially onto the element in a zone close thereto, wherein the transfer means includes thermoregulation means such as heating means, adapted so that the temperature at the surface in the impregnation zone is substantially higher than that of the substance in said supply station.Type: GrantFiled: March 8, 1988Date of Patent: June 12, 1990Assignee: Institut Francais du PetroleInventors: Michel Huvey, Lucien Montabord
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Patent number: 4932070Abstract: Accurate tuning of a satellite system's burst demodulator to a signal which is subject to frequency offset in the course of its transmission over the satellite link is achieved without the use of high precision oscillators at remote sites, or the transmission of a dedicated pilot tone. Instead, a dedicated high precision clock is used for the purpose of establishing both the outlink carrier and the return channel carrier. The modulation of the data on the outlink carrier is also derived from the precision clock source. At each remote station, the outlink channel is monitored to recover the high precision clock. This recovered clock is then used as a reference for generating the return channel carrier. The burst demodulator equipment at the master station monitors both the outlink channel continuous carrier and burst mode transmissions from the remote stations.Type: GrantFiled: August 22, 1988Date of Patent: June 5, 1990Assignee: Scientific AtlantaInventors: George W. Waters, Charles R. Burr, Charles W. Richards, IV
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Patent number: 4931919Abstract: A system for converting variable frequency multiple phase current into multiple phase current of constant frequency with a neutral having a multiple phase inverter with a neutral (N) is disclosed. A first input (34) is connected to the multiple phase inverter for receiving pulses of a positive polarity. A second input (36) is connected to the multiple phase inverter for receiving pulses of a negative polarity. A variable frequency multiple phase source (12, 14 and 16) of alternating current applies current to a multiple phase transformer (80, 142 and 180). Current from the transformer is applied to a full-wave rectifier (96) which has a first group of diodes (112) which applies the positive pulses to the input (34). A second group of diodes (116) applies the negative pulses to the input (36). The ripple frequency f.sub.Type: GrantFiled: July 14, 1988Date of Patent: June 5, 1990Assignee: Sundstrand Corp.Inventors: Vietson M. Nguyen, John J. Dhyanchand
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Patent number: 4931410Abstract: Disclosed is a process for forming a patterned copper layer on a substrate, using a patterned photoresist layer for forming the patterned copper layer. Etching mask and anti-oxidizing layers are formed on a copper layer (from which the patterned copper layer is formed) prior to forming the patterned photoresist layer. The uppermost one of the etching mask and anti-oxidizing layers is etched using the patterned photoresist layer as a mask, and then the patterned photoresist layer is removed, by oxygen plasma treatment, with the copper layer covered by the lower one of the etching mask and anti-oxidizing layers. By removing the patterned photoresist layer, by oxygen plasma treatment, while the copper layer is covered, oxidation of the copper layer during the oxygen plasma treatment can be avoided. The patterned copper layer can be an interconnection or wiring of a semiconductor device, formed on a semiconductor substrate having semiconductor elements therein.Type: GrantFiled: August 25, 1988Date of Patent: June 5, 1990Assignee: Hitachi, Ltd.Inventors: Takafumi Tokunaga, Masatoshi Tsuneoka, Koichiro Mizukami
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Patent number: 4929915Abstract: The present invention relates to a device and method for using a logging probe of small diameter with respect to a well in which it is to operate. The device of the invention is characterized in that it includes a widener for widening the diameter of said probe.Type: GrantFiled: July 2, 1987Date of Patent: May 29, 1990Assignee: Institut Francais du PetroleInventor: Christian Wittrisch
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Patent number: 4927598Abstract: The primary cooling water in a primary cooling water recirculation path of a nuclear power plant is heated and recirculated in the presence of beryllium, and a film of nickel ferrite and/or cobalt ferrite is formed on the surface of pipings and various apparatus and devices connecting with the primary cooling water. The beryllium is injected in the form of beryllium ion into the primary cooling water, or is disposed in the form of beryllium or beryllium-containing alloy in the piping and/or the various apparatus and devices.Type: GrantFiled: September 6, 1988Date of Patent: May 22, 1990Assignee: Hitachi, Ltd.Inventors: Yoshitaka Nishino, Toshio Sawa, Katsumi Ohsumi, Hisao Itow
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Patent number: 4926665Abstract: A key holding system comprises one or more locks responsive to key codes stored by a programmable key to enable the selective operation of that lock. The key is programmed by a key programmer carried by the key holder or installed in a vehicle. A database of key codes related to individual locks is maintained at a remote station and the code required by the key to operate a particular lock is communicated, subject to any required validation, e.g., as to the identity of the key holder, to the key programmer. Various methods of increasing security of the system are disclosed.Type: GrantFiled: March 11, 1988Date of Patent: May 22, 1990Assignee: Security Services PLCInventors: Gerald Stapley, Geoffrey Tate, Derek Hardisty
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Patent number: 4928281Abstract: A semiconductor memory includes a memory array which outputs storage data, at least one data unit at a time, each data unit having a plurality of bits including a parity bit, a parity check circuit for performing a parity check on storage data, at least one data unit at a time, input for both to and output from the memory array, and an external terminal for outputting the result of the parity check.Type: GrantFiled: June 10, 1987Date of Patent: May 22, 1990Assignee: Hitachi, Ltd.Inventors: Hinoko Kurosawa, Kazuya Itoh, Hisashi Nakamura, Masamichi Ishihara
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Patent number: 4928198Abstract: A high voltage electrode device including a plurality of individual electrodes having end portions projecting beyond an insulating surface and arranged to form at least one group or electrically connected electrodes and apparatus for energizing and deenergizing each group of electrodes. The energizing and deenergizing apparatus includes a high voltage source associated with a respective group and having a control input for turning off the high voltage source wherein the high voltage source provides an output to the group via a current measuring device providing an output indicative of the current measured. A voltage measuring device is connected to the associated group and provides an output indicative of the voltage measured, and quotient forming unit responsive to the outputs of the current measuring device and the voltage measuring device forming a quotient thereof and providing an output when the quotient formed has a predetermined relation to a reference value.Type: GrantFiled: July 29, 1988Date of Patent: May 22, 1990Assignee: Eltex-Elektrostatik-Gesellschaft mbHInventor: Klaus Domschat
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Patent number: 4926686Abstract: A method for determining the wear of cutting portion of a tool during drilling of a formation wherein a measurement is taken of the weight W applied to the tool and the torque T required to rotate said tool, the weight on the tool W and the torque T being linked by an equation of the type T=uW+vW.sup..alpha. in which u and v are parameters and .alpha. is a coefficient depending in part on the formation.Type: GrantFiled: September 19, 1988Date of Patent: May 22, 1990Assignee: Institut Francais du PetroleInventor: Hubert Fay
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Patent number: 4927735Abstract: Disclosed are a novel naphthalocyanine dye shown in the specification, a method for preparing the same, and an optical information recording medium employing the same.According to the present invention, there can be obtained a novel naphthalocyanine dye, a method for preparing the same, and an optical information recording medium employing the same, which has excellent characteristics in recording/reading out property and in reading stability.Type: GrantFiled: December 31, 1987Date of Patent: May 22, 1990Assignee: Hitachi Chemical Company, Ltd.Inventors: Susumu Era, Setsuo Kobayashi, Akio Mukoh
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Patent number: 4925314Abstract: A device for detecting and/or measuring a thermal phenomena occurring in a product showing a liquid state at a temperature within the range of temperatures swept by the detecting and/or measuring device. An enclosure is provided with a calorimetric head containing at least one measurement cell which is adapted to be filled and emptied. Heat is transferred to the cell and a magnitude relating to a temperature of the cell is measured so as to obtain desired information regarding the product.Type: GrantFiled: December 19, 1988Date of Patent: May 15, 1990Assignee: Institut Francais du PetroleInventors: Pierre Claudy, Jean-Marie Letoffe, Jean-Claude Commercon
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Patent number: 4924699Abstract: A method position measurement in which position about satellite orbits and information about time are received from satellites to determine a position of a point. The method includes a step to calculate a direction in which an error occurs based on positional information of a satellite and a step to determine the position of the point by use of road map information in the direction of the error.Type: GrantFiled: October 13, 1987Date of Patent: May 15, 1990Assignee: Hitachi, Ltd.Inventors: Hiroshi Kuroda, Nobuo Kurihara, Shinichi Sakamoto
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Patent number: 4925318Abstract: A packing comprising first and second opposed surfaces in a closure area of the packing has profiled portions secured to and extending over each of the opposed surfaces, which profiled portions are adapted to be releasably interengaged to permit connection and disconnection of the opposed surfaces. The profiled portions are each formed integrally with an outer layer of a strip material secured to the associated one of the opposed surfaces. The outer layer of the strip material is formed of a material well suited for forming a peel seal weld with the other opposed surface of the packing, such as a portion of the outer layer of the opposing strip material. The outer layer of each strip material is secured to the one of the first and second opposed surfaces via a base layer of the strip material to which the outer layer is secured by means of a non-peel seal type connection. As a result, the sheet material of the packing, a bag for example, need not be formed of a peel seal weldable material.Type: GrantFiled: November 4, 1988Date of Patent: May 15, 1990Assignee: Schurpack, Inc.Inventor: Leif B. Sorensen
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Patent number: 4925012Abstract: The present invention describes a device consisting of an endless flat conveyor belt arrangement for the positionally accurate transport of containers wherein the flat conveyor belt arrangement comprises two parallel convex load-bearing surfaces (3). In the conveyance of ferromagnetic containers, such as cans (2), for example, magnets (21, 22) are utilized which pull the cans (2) onto the conveyor belts (1).Type: GrantFiled: May 9, 1988Date of Patent: May 15, 1990Assignee: Prazisions-Werkzeuge AGInventor: August Guntensperger
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Patent number: RE33236Abstract: In a sealed type scroll compressor including an intermediate pressure chamber in which a pressure intermediate in magnitude between a discharge pressure and a suction pressure prevails, a bearing device including a roller bearing and a plain bearing mounted on a frame for supporting a shaft section of a crankshaft. To reduce application of unsymmetrical load to the bearings and prevent an increase in a bearing friction loss, the roller bearing is located in a position close to a crank section of the crankshaft and the plain bearing is located in a position remote from the crank section.Type: GrantFiled: October 29, 1987Date of Patent: June 19, 1990Assignee: Hitachi, Ltd.Inventors: Eiichi Hazaki, Hiroaki Kuno, Naoshi Uchikawa, Takahiro Tamura, Akira Murayama, Takao Mizuno