Patents by Inventor Kenji Iizuka
Kenji Iizuka 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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Publication number: 20240087916Abstract: A vacuum processing apparatus includes a decompressable process container; a supply port configured to supply, to the process container, an ionic liquid that absorbs an oxidizing gas; and a discharge port configured to discharge the ionic liquid supplied to the process container. A recess is provided at a joint portion between members constituting the process container. The supply port is configured to supply the ionic liquid to the recess, and the discharge port is configured to discharge the ionic liquid supplied to the recess.Type: ApplicationFiled: November 1, 2023Publication date: March 14, 2024Inventors: Hirokazu UEDA, Yoji IIZUKA, Mitsuaki IWASHITA, Antonio ROTONDARO, Dipak ARYAL, Takeo NAKANO, Ryuichi ASAKO, Kenji SEKIGUCHI, Koji AKIYAMA, Naoki UMESHITA, Takashi HAYAKAWA
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Publication number: 20230112790Abstract: A signal processing method for ultrasonic inspection includes: a step of generating ultrasonic waves by driving an ultrasonic probe by using a plurality of burst wave signals with different frequencies, respectively, and causing the ultrasonic waves to inject an inspection target; a receiving step of receiving a plurality of multiple reflected waves corresponding to the plurality of burst wave signals having injected the inspection target, respectively; a step of obtaining a plurality of detection signals by executing detection processing of receiving signals of the plurality of multiple reflected waves corresponding to the plurality of burst wave signals, respectively; and a generating step of generating an inspection signal for obtaining an inspection result related to the inspection target by using the plurality of detection signals.Type: ApplicationFiled: February 10, 2021Publication date: April 13, 2023Applicant: MITSUBISHI HEAVY INDUSTRIES, LTD.Inventors: Keiichi Morishita, Kenji Iizuka, Kentaro Jinno
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Publication number: 20230110092Abstract: A power-receiving-module-type telemeter transmitter of a telemeter measuring system that is provided in a rotor and that performs communication using power received from a power transmitting antenna formed in an arc shape on a stator side, includes: a plurality of power receiving modules disposed in the rotor at intervals in a circumferential direction; an OR circuit that outputs a highest voltage among voltages input from the plurality of power receiving modules; a sensor that measures a state of a monitoring target and that outputs measurement data indicating the state; and a transmitting unit that is driven by the voltage input from the OR circuit as a power source and that transmits a radio signal including the measurement data of the sensor.Type: ApplicationFiled: March 24, 2021Publication date: April 13, 2023Applicant: MITSUBISHI HEAVY INDUSTRIES, LTD.Inventors: Kenji Iizuka, Keiichi Morishita, Naoki Oyama, Jun Yasui
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Patent number: 11201389Abstract: A measurement system includes a stator-side unit and a rotor-side unit installed on the rotary machine. The stator-side unit includes a stator-side antenna, an oscillation unit that oscillates a microwave signal and outputs the oscillated microwave signal to the stator-side antenna, and a reception unit that demodulates the microwave signal and outputs a desired signal. The rotor-side unit includes a sensor, a rotor-side antenna that receives a microwave transmitted by the stator-side antenna and outputs the microwave signal, a power conversion unit that converts the received microwave signal into predetermined DC power and outputs the DC power, and a modulation unit that modulates a rotor output signal or a multiplication rotor output signal obtained by frequency multiplication of the rotor output signal, according to the output signal of the sensor, using the DC power output of the power conversion unit, and outputs the modulated rotor signal to the rotor-side antenna.Type: GrantFiled: November 27, 2019Date of Patent: December 14, 2021Assignee: MITSUBISHI HEAVY INDUSTRIES, LTD.Inventors: Kenji Iizuka, Jun Yasui, Naoki Oyama
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Publication number: 20200313286Abstract: A measurement system includes a stator-side unit and a rotor-side unit installed on the rotary machine. The stator-side unit includes a stator-side antenna, an oscillation unit that oscillates a microwave signal and outputs the oscillated microwave signal to the stator-side antenna, and a reception unit that demodulates the microwave signal and outputs a desired signal. The rotor-side unit includes a sensor, a rotor-side antenna that receives a microwave transmitted by the stator-side antenna and outputs the microwave signal, a power conversion unit that converts the received microwave signal into predetermined DC power and outputs the DC power, and a modulation unit that modulates a rotor output signal or a multiplication rotor output signal obtained by frequency multiplication of the rotor output signal, according to the output signal of the sensor, using the DC power output of the power conversion unit, and outputs the modulated rotor signal to the rotor-side antenna.Type: ApplicationFiled: November 27, 2019Publication date: October 1, 2020Inventors: Kenji IIZUKA, Jun YASUI, Naoki OYAMA
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Patent number: 10682608Abstract: A catalyst includes: a base material; and a nanocrystalline metal oxide composite having a plurality of accumulated flake-like nanocrystalline pieces in a connected state on the surface of the base material, the flake-like nanocrystalline pieces containing a metal oxide to accumulate, wherein the nanocrystalline metal oxide composite is configured such that an end surface of at least one of the nanocrystalline pieces is connected; the nanocrystalline pieces include a plurality of stacked surfaces stacked in a direction in which a main surface becomes an uppermost stacked surface; and when metal atoms or oxygen atoms forming the metal oxide are regarded as main constituent atoms, a proportion by number of the main constituent atoms to the metal atoms and the oxygen atoms forming the metal oxide existing on each stacked surface is 80% or more, and the main constituent atoms have a specific crystal orientation which changes in each stack.Type: GrantFiled: January 12, 2018Date of Patent: June 16, 2020Assignee: Furukawa Electric Co., Ltd.Inventors: Yoshikazu Tsuzuki, Kenji Iizuka, Mariko Wakae, Kazuhiko Kurusu
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Patent number: 10584030Abstract: The present disclosure provides that a catalyst exhibits excellent catalytic activity in both a hydrogenation involving a hydrogen-storing body containing an aromatic compound, and a dehydrogenation involving a hydrogen-supplying body containing a hydrogen derivative of the aromatic compound, wherein the catalyst contains a nanocrystalline composite having two or more accumulated flake-like nanocrystalline pieces in a connected state, the flake-like nanocrystalline pieces each having a main surface and an end surface, and in that the nanocrystalline composite is configured such that, when two adjacent nanocrystalline pieces are viewed, an end surface of at least one of the nanocrystalline pieces is connected.Type: GrantFiled: January 12, 2018Date of Patent: March 10, 2020Assignee: Furukawa Electric Co., Ltd.Inventors: Yoshikazu Tsuzuki, Kenji Iizuka, Mariko Wakae, Kazuhiko Kurusu
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Patent number: 10557914Abstract: A radio wave arrival angle detection device of the present invention extracts symbols and resolves the same into sub-carriers having various frequency components, for OFDM carrier waves received by a first antenna and a second antenna, respectively. The arrival angle of the carrier waves is calculated on the basis of the geometric relationship between a phase shift of the respective sub-carriers of the OFDM carrier waves received by the first antenna and the second antenna, and the arrangement of the first antenna and the second antenna.Type: GrantFiled: November 26, 2015Date of Patent: February 11, 2020Assignee: MITSUBISHI HEAVY INDUSTRIES MACHINERY SYSTEMS, LTD.Inventors: Kenji Iizuka, Masatoshi Tominaga, Kazuyoshi Kitajima, Saku Ieuji
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Publication number: 20180134550Abstract: The present disclosure provides that a catalyst exhibits excellent catalytic activity in both a hydrogenation involving a hydrogen-storing body containing an aromatic compound, and a dehydrogenation involving a hydrogen-supplying body containing a hydrogen derivative of the aromatic compound, wherein the catalyst contains a nanocrystalline composite having two or more accumulated flake-like nanocrystalline pieces in a connected state, the flake-like nanocrystalline pieces each having a main surface and an end surface, and in that the nanocrystalline composite is configured such that, when two adjacent nanocrystalline pieces are viewed, an end surface of at least one of the nanocrystalline pieces is connected.Type: ApplicationFiled: January 12, 2018Publication date: May 17, 2018Inventors: Yoshikazu Tsuzuki, Kenji Iizuka, Mariko Wakae, Kazuhiko Kurusu
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Publication number: 20180133649Abstract: A catalyst includes: a base material; and a nanocrystalline metal oxide composite having a plurality of accumulated flake-like nanocrystalline pieces in a connected state on the surface of the base material, the flake-like nanocrystalline pieces containing a metal oxide to accumulate, wherein the nanocrystalline metal oxide composite is configured such that an end surface of at least one of the nanocrystalline pieces is connected; the nanocrystalline pieces include a plurality of stacked surfaces stacked in a direction in which a main surface becomes an uppermost stacked surface; and when metal atoms or oxygen atoms forming the metal oxide are regarded as main constituent atoms, a proportion by number of the main constituent atoms to the metal atoms and the oxygen atoms forming the metal oxide existing on each stacked surface is 80% or more, and the main constituent atoms have a specific crystal orientation which changes in each stack.Type: ApplicationFiled: January 12, 2018Publication date: May 17, 2018Inventors: Yoshikazu Tsuzuki, Kenji Iizuka, Mariko Wakae, Kazuhiko Kurusu
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Publication number: 20180038935Abstract: A radio wave arrival angle detection device of the present invention extracts symbols and resolves the same into sub-carriers having various frequency components, for OFDM carrier waves received by a first antenna and a second antenna, respectively. The arrival angle of the carrier waves is calculated on the basis of the geometric relationship between a phase shift of the respective sub-carriers of the OFDM carrier waves received by the first antenna and the second antenna, and the arrangement of the first antenna and the second antenna.Type: ApplicationFiled: November 26, 2015Publication date: February 8, 2018Inventors: Kenji IIZUKA, Masatoshi TOMINAGA, Kazuyoshi KITAJIMA, Saku IEUJI
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Patent number: 9818654Abstract: An apparatus includes: measurement flow passage portions as part of a respective plurality of supply paths of fluids to be supplied to a substrate, the measurement flow passage portions constituting measurement regions for measurement of foreign matter in the fluids, and being disposed so as to form a row with each other; a light irradiating unit configured to form an optical path in one of the flow passage portions, the light irradiating unit being shared by the plurality of flow passage portions; a moving mechanism configured to move the light irradiating unit relatively along a direction of arrangement of the flow passage portions to form the optical path within the flow passage portion selected among the plurality of flow passage portions; a light receiving unit including a light receiving element, the light receiving element receiving light transmitted by the flow passage portion; and a detecting unit configured to detect foreign matter in the fluid on a basis of a signal output from the light receivingType: GrantFiled: June 2, 2016Date of Patent: November 14, 2017Assignee: Tokyo Electron LimitedInventors: Masato Hayashi, Kohei Noguchi, Kenji Iizuka, Naruaki Iida
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Publication number: 20160358829Abstract: An apparatus includes: measurement flow passage portions as part of a respective plurality of supply paths of fluids to be supplied to a substrate, the measurement flow passage portions constituting measurement regions for measurement of foreign matter in the fluids, and being disposed so as to form a row with each other; a light irradiating unit configured to form an optical path in one of the flow passage portions, the light irradiating unit being shared by the plurality of flow passage portions; a moving mechanism configured to move the light irradiating unit relatively along a direction of arrangement of the flow passage portions to form the optical path within the flow passage portion selected among the plurality of flow passage portions; a light receiving unit including a light receiving element, the light receiving element receiving light transmitted by the flow passage portion; and a detecting unit configured to detect foreign matter in the fluid on a basis of a signal output from the light receivingType: ApplicationFiled: June 2, 2016Publication date: December 8, 2016Applicant: Tokyo Electron LimitedInventors: Masato HAYASHI, Kohei NOGUCHI, Kenji IIZUKA, Naruaki IIDA
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Patent number: 7283636Abstract: The present invention provides a planer acoustic transducer including a vibrating diaphragm including a spiral voice coil provided on both surfaces or on one surface of an insulating base film; and a permanent magnet corresponding to the voice coil, wherein, in the vibrating diaphragm, the spiral voice coil is formed by applying a wire conductor, in a coil pattern, onto a sheet-like substrate having an adhesive layer on at least one surface thereof. Alternatively, at least a portion of the vibrating diaphragm, which portion corresponds to the loop of a first or second vibration mode, is reinforced with a rigidity-imparting member; the substrate of the vibrating diaphragm is formed of a resin foam; or the voice coil is formed three-dimensionally.Type: GrantFiled: February 28, 2003Date of Patent: October 16, 2007Assignee: The Furukawa Electric Co., Ltd.Inventors: Takeshi Nishimura, Kenji Iizuka, Masayuki Ishiwa, Shigeo Yamaguchi, Tsutomu Yokoyama, Masaaki Arahori, Hideharu Yonehara, Hiroshi Ikeda, Sadaaki Sakurai
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Publication number: 20050152577Abstract: The present invention provides a planer acoustic transducer including a vibrating diaphragm including a spiral voice coil provided on both surfaces or on one surface of an insulating base film; and a permanent magnet corresponding to the voice coil, wherein, in the vibrating diaphragm, the spiral voice coil is formed by applying a wire conductor, in a coil pattern, onto a sheet-like substrate having an adhesive layer on at least one surface thereof. Alternatively, at least a portion of the vibrating diaphragm, which portion corresponds to the loop of a first or second vibration mode, is reinforced with a rigidity-imparting member; the substrate of the vibrating diaphragm is formed of a resin foam; or the voice coil is formed three-dimensionally.Type: ApplicationFiled: February 28, 2003Publication date: July 14, 2005Applicant: The FURUKAWA ELECTRIC CO., LTD.Inventors: Takeshi Nishimura, Kenji Iizuka, Masayuki Ishiwa, Shigeo Yamaguchi, Tsutomu Yokoyama, Masaaki Arahori, Hideharu Yonehara, Hiroshi Ikeda, Sadaaki Sakurai
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Patent number: 6653572Abstract: A multilayer circuit board formed by integrally laminating a plurality of printed wiring boards in a multilayer structure so as to provide air gaps therebetween. An insulating layer is formed on each of both surfaces of a metal core substrate having through-hole forming apertures and a printed wiring layer is formed on the each insulating layer. Metal projections integrally formed on the metal core substrate serve as bonding electrodes between the adjacent wiring boards in the multilayer structure. The width of the air gap provided between the adjacent wiring boards is determined by the height of the metal projections.Type: GrantFiled: February 7, 2001Date of Patent: November 25, 2003Assignee: The Furukawa Electric Co., Ltd.Inventors: Masayuki Ishiwa, Kenji Iizuka, Takeshi Nishimura
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Patent number: 6593847Abstract: This invention provides a planar acoustic converting apparatus including a support having a flat plate portion, a diaphragm which has an insulating base film having a liquid crystalline polymer film and being opposed to the flat plate portion of the support and at least one spiral coil provided on one major surface or both major surfaces of the insulating base film, at least one permanent magnet supported by the support and opposing a magnetic pole to the diaphragm, and a holding portion provided to the support and holding the diaphragm such that the diaphragm can vibrate and is positioned apart from the at least one permanent magnet.Type: GrantFiled: May 10, 2001Date of Patent: July 15, 2003Assignees: The Furukawa Electric Co., Ltd., FPS, Inc.Inventors: Toshiiku Miyazaki, Masashi Hori, Takeshi Nishimura, Kenji Iizuka, Masayuki Ishiwa
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Publication number: 20020104681Abstract: A multilayer circuit board formed by integrally laminating a plurality of printed wiring boards in a multilayer structure so as to provide air gaps therebetween. An insulating layer is formed on each of both surfaces of a metal core substrate having through-hole forming apertures and a printed wiring layer is formed on the each insulating layer. Metal projections integrally formed on the metal core substrate serve as bonding electrodes between the adjacent wiring boards in the multilayer structure. The width of the air gap provided between the adjacent wiring boards is determined by the height of the metal projections.Type: ApplicationFiled: February 7, 2001Publication date: August 8, 2002Inventors: Masayuki Ishiwa, Kenji Iizuka, Takeshi Nishimura
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Publication number: 20010048256Abstract: This invention provides a planar acoustic converting apparatus including a support having a flat plate portion, a diaphragm which has an insulating base film having a liquid crystalline polymer film and being opposed to the flat plate portion of the support and at least one spiral coil provided on one major surface or both major surfaces of the insulating base film, at least one permanent magnet supported by the support and opposing a magnetic pole to the diaphragm, and a holding portion provided to the support and holding the diaphragm such that the diaphragm can vibrate and is positioned apart from the at least one permanent magnet.Type: ApplicationFiled: May 10, 2001Publication date: December 6, 2001Inventors: Toshiiku Miyazaki, Masashi Hori, Takeshi Nishimura, Kenji Iizuka, Masayuki Ishiwa
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Patent number: 5935881Abstract: A bulletproof fabric that fully exhibits the mechanical properties of constituent filaments to have light weight and high bulletproof performance is provided. The bullet-proof fabric contains a non-twisted, non-interlaced multifilament having a total fineness of 10 to 1000 denier both as a warp and as a weft. The multifilament consists mainly of at least one high-strength, high-modulus filament having a single fiber fineness of 10 denier or less. For the bulletproof fabric, the value of .alpha. calculated by expression (1):.alpha.=N.multidot.D/1000 (1)where N is the density in warp of fabric (yarns/inch) and D is the total fineness (d), is in the range of from 8.5 to 10.5, and the air permeability of the fabric satisfies expression (2):P.ltoreq..alpha..sup.2 /?7+D.sup.(1/2N) ! (2)where P is the air permeability (cc/cm.sup.2 /s) as defined in JIS L 1079 5-20. Also provided is a process for producing such a bulletproof fabric.Type: GrantFiled: December 23, 1997Date of Patent: August 10, 1999Assignee: Toyo Boseki Kabushiki KaishaInventors: Shigeo Abiru, Kenji Iizuka