Patents Represented by Law Firm Craig & Antonelli
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Patent number: 4347964Abstract: In a wire bonding apparatus in which, by identifying recognition marks of a pellet or leads displaced from a reference position in wire-bonding a pellet of a semiconductor device to leads within a field of view of a television camera, the displacements of the bonding positions of the pellet and the lead are corrected and then bonding pads on the pellet are connected to the leads by wires, the field of view is moved from a reference view position in a given moving manner, whereby the recognition marks may be identified rapidly and reliably. This apparatus is well adapted for the wire bonding of a semiconductor device of the DILG sealing type, for example, which is poor in the position accuracy of the bonding position.Type: GrantFiled: May 14, 1980Date of Patent: September 7, 1982Assignee: Hitachi, Ltd.Inventors: Nobuhiro Takasugi, Ryuichi Kyomasu
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Patent number: 4348288Abstract: Fuel oil containing sodium salt, potassium salt and solid matters is purified by separating the fuel oil into fuel oil and sludges by a centrifugal separating means, thereby removing the sludges from the fuel oil, and mixing the fuel oil freed from the sludges with water, and separating the resulting liquid mixture into fuel oil and water. Removal of the salts and the solid matters from the fuel oil can be attained at the same time very effectively with a reduced frequency of cleaning a filter or by omitting the use of the filter, with or without using an emulsion breaker.Type: GrantFiled: September 26, 1979Date of Patent: September 7, 1982Assignee: Hitachi, Ltd.Inventors: Shoji Yoshinaga, Hirosige Kawano, Matsuzo Todo, Tosihiko Takahasi, Kiyoshi Fujiwara, Yukio Inoue
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Patent number: 4348461Abstract: A recording member having a predetermined substrate, and a thin film which is formed on the substrate and which is formed with recesses or pits for recording information when irradiated with a working beam, characterized in that said thin film is formed of an inorganic material which contains at least arsenic, selenium and tellurium, and that a distribution of either of said Se and said Te decreases from a part near the surface of said thin film towards a central part thereof, while a distribution of said As increases from a part near the surface towards said central part, is disclosed. This recording member can afford a high signal-to-noise ratio and a long lifetime.Type: GrantFiled: June 18, 1980Date of Patent: September 7, 1982Assignee: Hitachi, Ltd.Inventors: Motoyasu Terao, Yoshio Taniguchi, Shinkichi Horigome, Masahiro Ojima, Kazuo Shigematsu, Keizo Kato, Yoshinori Miyamura, Seiji Yonezawa
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Patent number: 4348110Abstract: There is provided a photodetector wherein charging current to a photodiode is integrated to determine an amount of discharge due to conduction of photoelectric current through the photodiode and thereby to measure intensity of photon flux incident to the photodiode, so that linearity of light input intensity versus output voltage characteristics can be improved and dynamic range of the measurement can be extended.Type: GrantFiled: February 6, 1980Date of Patent: September 7, 1982Assignee: Hitachi, Ltd.Inventor: Tetsuo Ito
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Patent number: 4348689Abstract: A phase of a composite color television signal is adjusted by utilizing a signal which is one-field after or before relative to a current signal and which is a signal of the nearest scanning line. A difference signal between the color television signal and a signal derived from a one-field memory is applied to a band-pass filter and an output signal of the band-pass filter is added to the color television signal so that the phase of the carrier chrominance signal is adjusted by 180 degrees. The phase adjuster according to the present invention is applicable to video signal processing systems such as a noise reducer and a differential PCM coder.Type: GrantFiled: September 12, 1980Date of Patent: September 7, 1982Assignees: Hitachi, Ltd., Hitachi Denshi Kabushiki KaishaInventor: Masahiko Achiha
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Patent number: 4348065Abstract: A thrust bearing or tapered-land thrust bearing including a plurality of lubricant feeding nozzle holes. At least one of the nozzle holes is disposed in close proximity to the leading edge of a tapered surface of a bearing surface of the thrust bearing. By this arrangement, hot oil carryover can be minimized and the temperatures of a film of lubricant formed between the bearing surface and a thrust collar positioned there-against and a bearing body of the thrust bearing can be reduced. Thus the thrust bearing can withstand uses under high speed and high load conditions.Type: GrantFiled: July 10, 1980Date of Patent: September 7, 1982Assignee: Hitachi, Ltd.Inventors: Masahiro Yoshioka, Toshifumi Koike
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Patent number: 4348726Abstract: In the operation of a control computer, an interruption takes place at constant intervals of time, and the driving periods of different kinds of accessory equipment are controlled by utilizing the number of times of interruption occurrence.Type: GrantFiled: April 2, 1980Date of Patent: September 7, 1982Assignee: Hitachi, Ltd.Inventors: Osamu Igarashi, Masaru Kugo, Shizuhisa Watanabe
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Patent number: 4348729Abstract: A method and a system for engine control are disclosed. Electrical signals representing the engine operating conditions are detected, which electrical signals, together with the control data stored in a memory, are used to calculate a correction factor for correcting the control data for controlling the engine, where the correction factor is stored in a volatile memory, thus controlling the engine on the basis of the control data corrected by the correction factor. The correction factor stored in RAM is transferred to a non-volatile memory under predetermined conditions. Even if the voltage applied to RAM is reduced to a level lower than the storage ability of RAM, resulting in the loss of the stored data, the correction factor stored in EAROM is transferred back to RAM upon restoration of a normal voltage at RAM.Type: GrantFiled: April 11, 1980Date of Patent: September 7, 1982Assignee: Hitachi, Ltd.Inventors: Takao Sasayama, Seiji Suda
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Patent number: 4347545Abstract: A burglarproofing device for vehicles is provided wherein a key contains two partial codes. Device on the vehicle compares at least one of the two partial codes with a stored code. Coincidence of the codes will unlock a central locking device. A partial code may be changed by the authorized owner, although the vehicle is locked.Type: GrantFiled: July 16, 1980Date of Patent: August 31, 1982Assignee: Bayerische Motoren Werke A.G.Inventors: Walter Weishaupt, Hans-Dieter Fournell
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Patent number: 4346774Abstract: A Doppler radar speed sensor including an antenna section and a sensor section is mounted on the underside of the automobile undercarriage. A recess for accommodating the Doppler radar speed sensor is formed in part of the underside of the automobile undercarriage within a rectangle surrounded by the wheels, and the Doppler radar speed sensor is mounted fully within the recess. This structure prevents the sensor from being damaged in an unfavorable environment or external vehicle devices from being interfered with by the leakage of the unrequired radar wave. For size reduction, the Doppler radar speed sensor is provided with a metal casing integrated with a slotted waveguide antenna. The slot array of the antenna is formed in one side of the metal casing, so that the metal casing, makes up part of the slot array antenna.Type: GrantFiled: September 25, 1979Date of Patent: August 31, 1982Assignees: Hitachi, Ltd., Nissan Motor Co., Ltd.Inventors: Yukitsugu Hirota, Akira Endo, Katsuhiro Kimura, Hiroshi Morozumi, Kenji Sekine
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Patent number: 4346659Abstract: A bi-modal mechanically trackable vehicle adapted to be rail driven with or without a guide track, the vehicle including at least one non-steerable axle having non-steerable wheels mounted thereon, a plurality of tracking transverse guide rollers are provided for guiding the vehicle along the track. The transverse guide rollers are at least indirectly mounted at the non-steerable axle in an area of the respective wheels so as to be transversely displaceable. The non-steerable axle is mounted on the vehicle so as to be freely pivotable about a vertical axis. An arrangement is provided for automatically selectively locking the at least one non-steerable axle in an exact transverse position for driving without a guide track and for unlocking the at least one non-steerable axle from the exact transverse position.Type: GrantFiled: February 19, 1980Date of Patent: August 31, 1982Assignee: Daimler-Benz AktiengesellschaftInventor: Hellmuth Binder
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Patent number: 4347413Abstract: An electrode of a vacuum circuit breaker, having a high dielectric strength, large breaking current and superior non-welding characteristic. The electrode is made of a cast alloy comprising copper, 20 wt% or less of rare earth metal such as lanthanum, cerium or an alloy of either one of these rare earth metal with another rare earth metal, 10 wt% or less of a metal such as lead and bismuth having a lower melting point and a higher vapor pressure than copper, and 0.1 to 30 wt% of a metal of iron group. A part of the rare earth metal and a part of the metal having the lower melting point and higher vapor pressure than copper are crystallized in the grain boundary and in the grains of copper.Type: GrantFiled: July 30, 1979Date of Patent: August 31, 1982Assignee: Hitachi, Ltd.Inventors: Ryuji Watanabe, Keiichi Kuniya
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Patent number: 4347065Abstract: A process for the separation of paint mists from the exhaust gases of lacquer painting plants includes a step wherein the exhaust gases containing paint particles comprising the mists are conducted through a microwave field which cures and dries the paint particles to convert the paint particles into a nonsticky dust and a step wherein the thus-produced paint dust is separated from the exhaust gases by a filter device such as a fabric filter.Type: GrantFiled: July 10, 1981Date of Patent: August 31, 1982Assignee: Daimler-Benz AktiengesellschaftInventor: Wolfgang Gans
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Patent number: 4347408Abstract: A multi-frequency signal receiver, in which the digital input signals having the sampling frequency of 8 KHz or a multiple thereof are resampled at a sampling frequency of 4 KHz by means of a resampling circuit and in which the signals thus resampled are subjected to the band selection by means of a digital filter so that the frequency of the input signals may be identified.Type: GrantFiled: November 27, 1979Date of Patent: August 31, 1982Assignees: Nippon Telegraph and Telephone Public Corporation, Hitachi, Ltd.Inventors: Hiroko Ito, Eiji Ohira, Akira Ichikawa
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Patent number: 4347166Abstract: A thermistor composition comprises oxide powder of at least two of Mn, Co, and Ni, and an oxide powder of Ru as a noble metal.Type: GrantFiled: February 22, 1979Date of Patent: August 31, 1982Assignee: Hitachi, Ltd.Inventors: Hiromi Tosaki, Hideo Arima, Teruo Mozume, Akira Ikegami, Tokio Isogai, Ichiro Tsubokawa
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Patent number: 4346682Abstract: A carburetion arrangement and method of carburetion for a multicylinder internal combustion engine wherein at least one carburetor acts as a main mixture forming device with the main mixture being guided through individual intake lines which connect the carburetor to intake valves of the engine. Further mixture components are guided through separate air and fuel lines which terminate in the individual intake lines with the separate air and fuel lines being combined immediately before the intake lines. The intake air is supplied to the further mixture components primarily through the individual intake lines with a volume controlled portion of the intake air of this mixture component, reduceable to zero, being guided through the separate air lines, as correction air for the fuel to the mixture components flowing through the separate fuel lines. The correction air flowing through all the lines is controlled volumewise by a common control device which is disposed upstream of an air distributor for the air lines.Type: GrantFiled: February 28, 1980Date of Patent: August 31, 1982Assignee: Bayerische Motoren WerkeInventor: Reinhard Mader
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Patent number: 4347304Abstract: Metallic images of uniform quality can be formed on substrates having through-holes by a process using a positive type resist characterized by using as a coating solution for the substrate a solution of a photosensitive material of (a) at least one organic compound having at least one linkage of --M--M--M ).sub.n (M=Si, Ge or Sn; n=0, 1 or more) in the molecule or (b) a mixture of at least one organic compound (a) mentioned above and at least one photosensitizer, dissolved in a solvent such as a halogenated hydrocarbon, an aromatic hydrocarbon, a heterocyclic compound, or a mixture thereof, followed by irradiation with an actinic light through a photomask and electroless plating.Type: GrantFiled: June 24, 1981Date of Patent: August 31, 1982Assignee: Hitachi, Ltd.Inventors: Hideki Sakurai, Mitsuo Nakatani, Hitoshi Oka, Hitoshi Yokono, Tokio Isogai
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Patent number: 4347564Abstract: Sub-loop controllers arranged around a microprocessor are assigned to operation terminals to be controlled, and connected to a master controller and a host computer through a system bus to be supplied with a control command therefrom. Analog memories for manual control of the operation terminals are connected to the host computer through a special, common wiring. If one of the sub-loop controllers breaks down, the host computer directly controls the operation terminal by use of this analog memory thereby to back up the sub-loop controller.Type: GrantFiled: June 25, 1980Date of Patent: August 31, 1982Assignee: Hitachi, Ltd.Inventors: Akira Sugano, Eiji Tooyama
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Patent number: 4347607Abstract: Voice and alarm signalling capability between supervisory personnel at monitor and control sites located at separated transceiver facilities of a (repeatered) multichannel communication network is provided by a multichannel multiplexed encode/decode scheme in which voice and/or alarm signals generated at one station are digitally encoded and formatted so as to be inserted into the data stream of the normally conveyed data traffic over the active channels of the network. At the receiving terminal site, these inserted signals are removed from the high data rate digital data stream and delivered to decoding equipment which reconstructs the original voice and/or alarm signals for delivery to the audio equipment of station operation personnel. The encoded signals are inserted as overhead bits for each active channel, so that a fault on one channel will not prevent the completion of trasmission of the intended communication between terminal site personnel.Type: GrantFiled: May 9, 1980Date of Patent: August 31, 1982Assignee: Harris CorporationInventors: Thomas J. Nixon, Harold Iley
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Patent number: 4347196Abstract: A carburetor equipped with an auto-choke device is disclosed wherein according to one embodiment a leak valve is disposed in a negative pressure chamber of a diaphragm device adapted to operate by a negative pressure in a suction passage downstream of a throttle valve so as to open a choke valve in said suction passage to a predetermined degree of opening (complete explosion opening) after an engine has rotated by itself, and when the diaphragm has executed a predetermined shift, the leak valve is opened, and simultaneously, the downstream of the leak valve is brought into the atmospheric pressure for engine temperatures below a set value and into the same negative pressure as that of the negative pressure chamber for engine temperatures at and above the set value, whereby the operating stroke of the diaphragm is changed-over in two stages in dependence upon the water temperature or oil temperature, and the complete explosion opening of the choke valve is changed-over in two stages so that it may become narroType: GrantFiled: January 24, 1980Date of Patent: August 31, 1982Assignee: Hitachi, Ltd.Inventor: Shigeyuki Kenma