Patents Represented by Law Firm Antonelli, Terry and 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: 4935732Abstract: A paging receiver is disclosed which is compatible with transmissions from analog or digital paging transmitters. The paging receiver has a command structure which permits it to be dynamically programmable to change its functionality including programming of the channels which the paging receiver is to receive. The programmability of the channels permits the paging receiver to be used for making national, regional, remote area, local area, and sublocal area pages, and pages to a group in the local area and to switch from channels which are heavily used during peak paging times to lesser used channels. The paging receiver transmits paging receiver identification code digits in an order of increasing significance which significantly lessens power consumption for all paging receivers tuned to a particular channel for determining if a page is to be received which prolongs paging receiver battery life. The paging receiver displays the place of origin of pages as either being of local origin or from other areas.Type: GrantFiled: May 18, 1989Date of Patent: June 19, 1990Assignee: Telefind CorporationInventors: Andrew A. Andros, Thomas J. Campana
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Patent number: 4935799Abstract: Disclosed is a composite semiconductor device which comprises: a second and a third semiconductor regions of a second conductivity type formed in a first semiconductor region of a first conductivity type independently of each other and so as to be exposed on one main surface of a semiconductor substrate; a fourth and a fifth semiconductor regions of the first conductivity type formed in the second semiconductor region independently of each other and so as to be exposed on the one main surface of the semiconductor substrate; a first insulated gate electrode formed on the second semiconductor region located between the fifth and first semiconductor regions and exposed on the one main surface; a second insulated gate electrode formed on the first semiconductor region located between the second and third semiconductor regions and exposed on the one main surface; an electrode which shorts the fourth and third semiconductor regions; another electrode which shorts the second and fifth semiconductor regions; and a fuType: GrantFiled: December 13, 1988Date of Patent: June 19, 1990Inventors: Mutsuhiro Mori, Tomoyuki Tanaka, Yasumichi Yasuda
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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: 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: 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: 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: 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: 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: 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: 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: 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: 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: 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: 4925378Abstract: A rotary vane compressor comprising a cylinder, a rotor rotatably mounted within the cylinder and cooperating with an inner peripheral surface of the cylinder to define a compression chamber therebetween, two side plates for closing both ends of the cylinder, at least one vane slidably mounted to the rotor for movement radially toward and away from the rotor through an outer peripheral surface thereof and dividing the compression chamber into a plurality of spaces, and a chip seal provided on a forward end of the vane for slidably engaging with the inner peripheral surface of the cylinder. The sealing efficiency of the chip seal is increased by introducing the pressure in a central portion of the rotor into the forward end of the vane.Type: GrantFiled: November 16, 1988Date of Patent: May 15, 1990Assignee: Hitachi, Ltd.Inventors: Kenichi Ushiku, Akira Tezuka
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Patent number: 4925438Abstract: Bags, especially shopping bags, of a thermoplastic synthetic resin sheeting, are made to be free-standing. In the process for the production of the bags, the bags are provided in pairs. Each bag is provided with a handle hole and designed as a standing bag having an approximately sinusoidal load-bearing rim, with lateral cutoff weld seams and with a bottom pleat, with corner weld seams provided separately in the two pleat sections of the bottom pleat and extending from the bag sides obliquely toward the bag bottom, and with a flat bottom formed by the corner weld seams.Type: GrantFiled: August 5, 1988Date of Patent: May 15, 1990Assignee: Stiegler GmbH MaschinenfabrikInventor: Robert Wagner
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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