Patents by Inventor Yukio Yamaguchi
Yukio Yamaguchi has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 5154795Abstract: A system for setting an analysis condition for a thermal analysis of a fluid inside an apparatus, wherein a gas flow-in temperature in the apparatus, a gas flow-in rate, and an apparatus outer wall temperature are set as critical conditions, the interior of the apparatus being under a high pressure atmosphere and heated by a heater, an analysis mesh shape, a pressure inside the apparatus and other values, and a heater power, are set as initial values, and a simulation is carried out so that an optimum operating condition is obtained, wherein the relationship between heater power by which a heater monitoring temperature is maintained at a constant value and a gas flow rate at the entrance while changing the apparatus internal pressure is obtained by a trial experiment, and the simulation is carried out by changing the gas flow rate at the entrance in accordance with the heater power and the gas flow rate at the entrance set as the initial value.Type: GrantFiled: June 11, 1990Date of Patent: October 13, 1992Assignees: Mitsubishi Kasei Polytec Company, Mitsubishi Kasai CorporationInventors: Masanobu Ishida, Yukio Yamaguchi, Fumio Orito, Kizuku Katano, Hideo Okada, Fumikazu Yajima
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Patent number: 5008862Abstract: A switch device is disclosed for detecting an object which comprises a transducer for emitting and receiving ultrasonic signals to and from an object, a transmitter for driving the transducer, a receiver for receiving a signal from the transducer, a gate for detecting a short-distant object, a gate for detecting a long-distant object, and a circuit for setting the timings of the gates in accordance with the detecting ranges of the object.Type: GrantFiled: January 18, 1990Date of Patent: April 16, 1991Assignee: Omron Tateisi Electronics Co.Inventors: Hiroshi Shimamoto, Hideyuki Suzaki, Yukio Yamaguchi, Atsushi Kawano
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Patent number: 4997539Abstract: A method for producing a magnetic recording medium, which comprises forming, by sputtering, a thin undercoating layer and a thin cobalt alloy magnetic layer sequentially on a substrate, wherein an intermediate electrode is provided in the vicinity of the target to enclose at least 1/2 of the circumference of the sputter erosion end of the target, and at least one of the undercoating layer and the cobalt alloy magnetic layer is formed under such condition that a positive potential relative to the substrate and the grounded portion of the main body of the layer-forming apparatus, is applied to the intermediate electrode.Type: GrantFiled: July 12, 1989Date of Patent: March 5, 1991Assignee: Mitsubishi Kasei CorporationInventors: Kazunaga Komizo, Masatoshi Ichikawa, Takeshi Sakuma, Fumiaki Yokoyama, Yukio Yamaguchi
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Patent number: 4980028Abstract: A method fo controlling fuel for a coke oven by a programmed heating method in which the fuel supply rate is changed at least once during the coal carbonization process in the coke oven, wherein the improvement comprises conducting the substantial reduction of the fuel supply rate from a large flow rate at the initial stage of the carbonization to a small flow rate inclusive of a zero rate when the coal center temperature, i.e. the temperature at the center of the coal packed in the carbonization chamber, is within a range of from 350.degree. to 700.degree. C.Type: GrantFiled: December 23, 1985Date of Patent: December 25, 1990Assignee: Mitsubishi Kasei CorporationInventors: Yoshio Yoshino, Koji Tsuchihashi, Yoshihiro Omae, Kenzo Tsujikawa, Yukio Yamaguchi
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Patent number: 4960668Abstract: An insulative magnetic toner disclosed herein comprises a magnetic powder, a negative charge control agent, a binder resin and a compound having phenazine ring amorphous-silicon photoreceptor.The magnetic toner according to the invention is effective for preventing the occurrence of picture image blurring under high humidity when used in an amorphous-silicon photoreceptor.Type: GrantFiled: December 5, 1989Date of Patent: October 2, 1990Assignee: Mitsubishi Kasei CorporationInventors: Toshihiko Yoshitomi, Heihachi Yushina, Hiromi Horiuchi, Yukio Yamaguchi, Yasuo Kamoshita, Kiyoshi Sekihara
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Patent number: 4835519Abstract: A detecting apparatus using ultrasonic waves comprises a sensor unit and a signal processing unit for processing a reception signal sent from the sensor unit to output a detection signal. These units are connected by a cable having three core wires. A power supply signal, an ultrasonic transmission signal and operation indication signal are multiplexed to the first core wire and transmitted from the signal processing unit to the sensor unit. An ultrasonic reception signal and a temperature detection signal are multiplexed to the second core wire and transmitted from the sensor unit to the signal processing unit. The third core wire is used to connect the grounding levels of both units.Type: GrantFiled: June 18, 1987Date of Patent: May 30, 1989Assignee: Omron Tateisi Electronics Co.Inventors: Hideyuki Suzaki, Yukio Yamaguchi
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Patent number: 4781244Abstract: A cooling system for an electronic system comprises a connector mounted on a panel and an integrated circuit package removably connected to the connector by a mounting frame. A layer of heat conductive bonding material is provided between the package and a heat conductive member which is removably secured to a water-cooling heat exchanger. A plurality of guide posts are secured to the panel for holding the heat exchanger. Each guide post is formed with an externally threaded portion which engages with a thumb nut. A coil spring is provided between each thumb nut and the heat exchanger to exert a predetermined amount of contact pressure between the connector and package and take the weight of the heat exchanger.Type: GrantFiled: February 25, 1987Date of Patent: November 1, 1988Assignee: NEC CorporationInventors: Yuji Kuramitsu, Yukio Yamaguchi
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Patent number: 4764448Abstract: An amorphous silicon photoreceptor for electrophotography having a specific surface roughness is disclosed herein. Also provided are a process for the preparation and/or regeneration of the material and improved methods for electrophotography, which use a special abrasive. The material enables the electrophotography without occurance of any image blurring under high humidity conditions.Type: GrantFiled: April 2, 1986Date of Patent: August 16, 1988Assignee: Mitsubishi Chemical Industries, Ltd.Inventors: Toshihiko Yoshitomi, Hiromi Horiuchi, Yukio Yamaguchi, Yasuo Kamoshita, Kiyoshi Sekihara
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Patent number: 4655878Abstract: A method of regulating fuel for a coke oven by a programmed heating method in which a change of the fuel supply rate contains at least one substantial reduction during the coal carbonization process in the coke oven, wherein the improvement comprises setting up a standard curve for the ethylene concentration or the tar concentration based on the operating conditions of the coke oven and the conditions of feed coal, measuring the ethylene concentration or the tar concentration in the coke oven gas generated in the carbonization chamber, and controlling the fuel supply rate so as to minimize the difference between the measured value and the standard value.Type: GrantFiled: November 7, 1984Date of Patent: April 7, 1987Assignee: Mitsubishi Chemical Industries, Ltd.Inventors: Yoshio Yoshino, Koji Tsuchihashi, Yoshihiro Omae, Kenzo Tsujikawa, Takashi Takaoka, Yukio Yamaguchi
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Patent number: 4602473Abstract: Just before a container is sealed by a container sealing apparatus or a container has a sealing body fed to its narrow-mouth by a sealing body feeder, an inert gas is blown into a head space of the container to replaced air present in the head space, and thereafter the container is immediately sealed or a sealing body is fed thereto to sealingly confine the inert gas within the head space. Preferably prior to the above-mentioned step, a heated gas is fed into the head space of the container which has been filled with a liquid to eliminate bubbles existing within the head space and remove the air trapped in the bubbles by the thermal energy of the heated gas. An apparatus to be used for practicing the above method is also disclosed.Type: GrantFiled: March 28, 1985Date of Patent: July 29, 1986Assignee: Mitsubishi Jukogyo Kabushiki KaishaInventors: Masayuki Hayashi, Yukio Yamaguchi, Masatoshi Suzuki
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Patent number: 4590849Abstract: A bread toaster having toasting heaters facing a toasting chamber formed below a bread receiving slot. The slot merges into a notch which is formed in the upper end portion of an outer shell panel which continues integrally from the top panel. The toaster has bread supports pivotally carried by a pivot bearing which is inwardly positioned adjacent to the outer shell panel and below the notch. With this arrangement, it is possible to simplify the construction of movable parts of the toaster, including the bread supports, and, also, to stabilize the operation of the bread supports.Type: GrantFiled: September 13, 1984Date of Patent: May 27, 1986Assignees: Matsushita Electric Industrial Co., Ltd., Toyo Press Co., Ltd.Inventors: Kichinosuke Uemura, Yukio Yamaguchi
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Patent number: 4525554Abstract: In a process for polymerizing an olefin in the presence of a catalyst system combining an organoaluminum compound with a hydrocarbon insoluble solid catalytic component prepared by treating a hydrocarbon solution containing a magnesium compound, and a titanium compound with an aluminum halide having the formulaAlR.sub.l.sup.1 X.sub.3-l.sup.1(R.sup.1 represents an alkyl, aryl or cycloalkyl group and X.sup.1 represents a halogen atom, and l is 1.ltoreq.l.ltoreq.2),an improvement characterized in that the magnesium compound is a compound having the formulaMg(OR.sup.2).sub.m X.sub.2-m.sup.2(R.sup.2 represents an alkyl, aryl or cycloalkyl group; X.sup.2 represents a halogen atom; and m is 1 or 2) and the titanium compound is a compound having the formulaTi(OR.sup.3).sub.n X.sub.4-n.sup.3(R.sup.3 represents an alkyl, aryl or cycloalkyl group; X.sup.3 represents a halogen atom; n is 1, 2 or 3).Type: GrantFiled: March 4, 1981Date of Patent: June 25, 1985Assignee: Mitsubishi Chemical Industries Ltd.Inventors: Toru Tanaka, Kazutoshi Iwatani, Nobuo Enokido, Atsushi Murakami, Yukio Yamaguchi
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Patent number: 4267853Abstract: A gas pipe including a tube of expansible material defining a passage for gas and capable of expansion, when heated, to close the passage upon carbonization. The tube is surrounded by a cylindrical noninflammable member.A joint for connecting gas pipes which includes a tube of expansible material contained in a metallic tubular member and defining a passage for gas. The tube is capable of expansion, when heated, to close the passage upon carbonization.A method of manufacturing thermally expansible rubber tube for the gas pipe and the gas pipe joint. About 2 to 30 parts by weight of oxidized, thermally expansible graphite powder is mixed with 100 parts by weight of raw rubber, and a predetermined quantity of a curing agent and a cure accelerator are added to the rubber and graphite mixture, followed by its formation into a tubular shape.Type: GrantFiled: February 13, 1978Date of Patent: May 19, 1981Assignees: Toho Gasu Kabushiki Daisha, Kabushiki Kaisha Togawa Gomu SeizoshoInventors: Yukio Yamaguchi, Kenji Ishihara, Kikuo Yonekura
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Patent number: 4239793Abstract: A gas separation membrane comprises a main component of a mixture of a polyvinyltriorganosilane and an organopolysiloxane.The gas separation membrane has a dense layer having a gas selective permeability and a thickness of 0.01 to 10.mu. and a porous layer having open pores and a thickness of greater than 10.mu..Type: GrantFiled: October 11, 1978Date of Patent: December 16, 1980Assignee: Mitsubishi Chemical Industries Ltd.Inventors: Junichi Matsuura, Yukio Yamaguchi
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Method of making thermally expansible rubber tubes for use in self-closing gas pipes and pipe joints
Patent number: 4229341Abstract: A method of manufacturing a thermally expansible rubber tube for use in gas pipes and gas pipe joints. About 2 to 30 parts by weight of oxidized, thermally expansible graphite powder is mixed with 100 parts by weight of raw rubber, and a predetermined quantity of a curing agent and a cure accelerator are added to the rubber and graphite mixture, followed by its formation into a tubular shape.Type: GrantFiled: February 15, 1979Date of Patent: October 21, 1980Assignees: Toho Gasu Kabushiki Kaisha, Kabushiki Kaisha Togowa Gomu SeizoshoInventors: Yukio Yamaguchi, Kenji Ishihara, Kikuo Yonekura -
Patent number: 4134530Abstract: A water intake portion of a hydraulic machine consists of a casing and a speed ring positioned between the casing and guide vanes for guiding water from the casing to the guide vanes. The speed ring consists of a pair of upper and lower flat members of a ring form, a plurality of stay vanes positioned between the aforesaid pair of members for interconnecting same rigidly, and a reinforcing member of a cylindrical form, which is welded to the top surface of the upper flat member between the inner and outer circumferential edges of the upper flat member. Edges defining therebetween an opening of this casing are welded to the top surface of the upper flat member of a ring form, of the speed ring in the position between the aforesaid reinforcing member and the outer circumferential edge of the upper flat member, as well as to the undersurface of the lower flat member of a ring form, respectively.Type: GrantFiled: February 11, 1976Date of Patent: January 16, 1979Assignee: Hitachi, Ltd.Inventors: Kagehiko Yamamoto, Hideo Ito, Mizuho Tanaka, Shoji Sato, Hidetoshi Togashi, Isao Yanagida, Yukio Yamaguchi, Mutsuo Suzuki, Tadakazu Oguri, Hisanao Kita, Junzo Komatsu
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Patent number: 4109160Abstract: In a control system for a hydroelectric power station system including upper and lower water reservoirs connected through a water channel, an intermediate water reservoir having a smaller storage capacity than those of the upper and lower reservoirs and provided on the water channel in cascade with the upper and lower reservoirs, and two power stations disposed between the upper and intermediate reservoirs and between the intermediate and lower reservoirs, respectively, the control system is arranged such that the water level of the intermediate reservoir is detected continuously and the detected value of the water level is used to correct the load instructions which are applied to the power stations for controlling outputs of the power stations whereby the water level of the intermediate reservoir is maintained substantially constant, while the power generation of the power stations is controlled so as to satisfactorily meet with the load instruction applied to the power system.Type: GrantFiled: August 11, 1976Date of Patent: August 22, 1978Assignee: Hitachi, Ltd.Inventors: Masuo Goto, Akira Isono, Tunehiko Takakusagi, Masanobu Araki, Haruo Ishikawa, Yukio Yamaguchi