Patents by Inventor Jun Kasai
Jun Kasai 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: 20230121586Abstract: A sound data processing device includes: a sound data acquisition unit configured to acquire first sound data that is data about a sound whose sound image is localized in a cabin of a vehicle; an object specifying unit configured to specify an attention object that is an object to which an occupant of the vehicle directs attention; a sound data processing unit configured to generate second sound data that is data about the sound for which a sound relating to the attention object is emphasized in comparison with the first sound data; and a sound data output unit configured to output the second sound data to an output device that outputs a sound to the occupant.Type: ApplicationFiled: March 25, 2020Publication date: April 20, 2023Applicant: Nissan Motor Co., Ltd.Inventors: Shota Ohkubo, Hirofumi Inoue, Masaki Okamoto, Jo Nishiyama, Jun Kasai, Tahehito Teraguchi, Yu Shikoda, Fangge Chen
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Patent number: 11292975Abstract: Provided is a powder fuel supply apparatus comprising a distributor (84) that branches supplied powder fuel to a plurality of branch tubes (82), a plurality of burners (126a) connected to downstream ends (82a) of the plurality of branch tubes (82), respectively, to supply char into a gasification furnace that gasifies the powder fuel, a flow nozzle (85) provided in each of the plurality of branch tubes (82), to apply pressure loss to char flow in the branch tube (82), a differential pressure gauge (86) that measures a differential pressure generated by the flow nozzle (85), and a control unit that determines decrease in flow velocity of the char flow based on the differential pressure obtained by the differential pressure gauge (86).Type: GrantFiled: February 12, 2019Date of Patent: April 5, 2022Assignee: MITSUBISHI POWER, LTD.Inventors: Yuichiro Urakata, Koji Nishimura, Jun Kasai
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Publication number: 20210325041Abstract: An object of the present invention is to provide a pulverized coal drying system for a pulverizer, a pulverized coal drying method therefor, a pulverized coal drying program, a pulverizer, and an integrated gasification combined cycle capable of stably drying a carbonaceous feedstock irrespective of the type of the carbonaceous feedstock to be used. There is provided a controller (50) of a pulverizer (10) that dries a supplied carbonaceous feedstock by using a drying fluid and includes a flow rate controller that controls the flow rate of the drying fluid within upper and lower limits of the flow rate of the drying fluid that are set to dry a plurality of types or the carbonaceous feedstock having different moisture contents in such a way that the temperature of the drying fluid discharged from the pulverizer (10) approaches a target temperature.Type: ApplicationFiled: November 19, 2019Publication date: October 21, 2021Applicant: MITSUBISHI POWER, LTD.Inventors: Yuichiro Urakata, Koji Nishimura, Jun Kasai
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Publication number: 20210238490Abstract: The object is to provide a powder fuel feed apparatus, a gasifier unit, and an integrated gasification combined cycle and a control method of a powder fuel feed apparatus that can suppress deformation of a sintered metal filter with simple and inexpensive configuration. An embodiment includes: a distributor pipe (89) in which a mixed gas containing moisture and a gas in which pulverized coal and nitrogen transported with the pulverized coal are mixed is transported; and a diluting nitrogen system (90) that, when a flow velocity of the mixed gas is less than a predetermined threshold, additionally supplies a diluting nitrogen to a mixing chamber (97) connected to the distributor pipe (89) and forming a part of the distributor pipe (89), and the diluting nitrogen system (90) continuously supplies a predetermined flow rate of the diluting nitrogen to the mixing chamber (97).Type: ApplicationFiled: November 8, 2019Publication date: August 5, 2021Applicant: Mitsubishi Power, Ltd.Inventors: Yuichiro Urakata, Koji Nishimura, Jun Kasai
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Publication number: 20210174790Abstract: An operation assistance device for vehicles includes a human relationship analysis unit, a human relationship storage unit, and an assistance information determination unit. The operation assistance device obtains recommendation information suitable for an occupant composition including human relationships and provides the recommendation information for assisting a vehicle operation. The analysis unit acquires conversation voice data of a plurality of persons to specify speakers, analyzes the acquired data for each specified speaker to extract a predetermined keyword, specifies a speech pattern of each speaker based on the keyword, specifies conversation content based on the acquired data, and analyzes and quantifies direct human relationships among the persons from the specified speech pattern and conversation content. The storage unit preliminarily accumulates the direct human relationships.Type: ApplicationFiled: November 17, 2017Publication date: June 10, 2021Applicant: Nissan Motor Co., Ltd.Inventors: Jo Nishiyama, Hirofumi Inoue, Takehito Teraguchi, Jun Kasai
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Publication number: 20210139798Abstract: A pressurizing nozzle includes a nozzle body; a filter that is provided to be perpendicular to the central axis direction of the nozzle body so as to cover the internal cross section of the nozzle body at the leading end portion on one end of the nozzle body and that is made of sintered metal having a prescribed thickness in the central axis direction; a retainer having an annular shape that is mounted to the leading end portion of the nozzle body so as to be disassemble and that fixes the outer circumferential portion of the filter via a pair of sealing parts; and a sealing portion that is disposed along the outer circumferential end face of the filter and that seals a fluid from flowing from the outer circumferential face toward the outside in the radial direction through the filter.Type: ApplicationFiled: February 9, 2018Publication date: May 13, 2021Applicant: MITSUBISHI HITACHI POWER SYSTEMS, LTD.Inventors: Yuichiro Urakata, Koji Nishimura, Jun Kasai
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Publication number: 20210002566Abstract: Provided is a powder fuel supply apparatus comprising a distributor (84) that branches supplied powder fuel to a plurality of branch tubes (82), a plurality of burners (126a) connected to downstream ends (82a) of the plurality of branch tubes (82), respectively, to supply char into a gasification furnace that gasifies the powder fuel, a flow nozzle (85) provided in each of the plurality of branch tubes (82), to apply pressure loss to char flow in the branch tube (82), a differential pressure gauge (86) that measures a differential pressure generated by the flow nozzle (85), and a control unit that determines decrease in flow velocity of the char flow based on the differential pressure obtained by the differential pressure gauge (86).Type: ApplicationFiled: February 12, 2019Publication date: January 7, 2021Applicant: MITSUBISHI HITACHI POWER SYSTEMS, LTD.Inventors: Yuichiro Urakata, Koji Nishimura, Jun Kasai
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Publication number: 20200391962Abstract: A powder supply hopper pressurizing apparatus including a first buffer tank in which pressurizing gas to be supplied to a powder supply hopper is accumulated at a predetermined pressure, a second buffer tank, a lower part pressure adjustment nitrogen system connected to the powder supply hopper, to supply the gas toward powder fuel stored in the powder supply hopper when supplying the powder fuel to a burner, and a control unit that controls the first buffer tank to pressurize the powder supply hopper to a first pressure and then controls the second buffer tank to pressurize the powder supply hopper to a second pressure, and where the control unit determines that one of the first buffer tank or the second buffer tank is non-usable, the control unit pressurizes the powder supply hopper by use of the first or second buffer tank that is operable, and the gas supply system.Type: ApplicationFiled: February 15, 2019Publication date: December 17, 2020Applicant: MITSUBISHI HITACHI POWER SYSTEMS, LTD.Inventors: Yuichiro Urakata, Jun Kasai, Koji Nishimura
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Patent number: 10836567Abstract: A pulverized-fuel supply unit includes a hopper, first nozzles, second nozzles, a pressurizing-gas supply device, a fluidization-gas supply device, and a pulverized-fuel supply line. The hopper has a hollow to store therein pulverized fuel. The first nozzles are provided to the hopper. The second nozzles are provided to a vertically lower part of the hopper below the plurality of first nozzles. The pressurizing-gas supply device is configured to supply pressurizing gas to increase internal pressure of the hopper. The fluidization-gas supply device is configured to supply fluidization gas to fluidize the pulverized fuel in the hopper. The pulverized-fuel supply line is provided to a vertically lower part of the hopper. The pressurizing-gas supply device supplies pressurizing gas to the first nozzles and the second nozzles. The fluidization-gas supply device supplies fluidization gas to the second nozzles.Type: GrantFiled: January 23, 2017Date of Patent: November 17, 2020Assignee: MITSUBISHI HITACHI POWER SYSTEMS, LTD.Inventors: Jun Kasai, Koji Nishimura, Yuichiro Urakata
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Patent number: 10677457Abstract: A combustion burner includes a plurality of splitters (5), (6), (7) configured to divide a fuel gas flow by a widened portion where a width of the widened portion increases as the widened portion extends in the direction of the fuel gas flow. The splitters include: slitted splitters (5), (6) configured to slits (SL) at a downstream end in the fuel gas flow; and non-slitted splitters (7) configured to adjacently to the slitted splitters (5), (6), each of the non-slitted splitters (7) configured to the widened portion at a downstream end in the fuel gas flow, and configured to a fixed width in a direction of the longitudinal axis.Type: GrantFiled: August 1, 2016Date of Patent: June 9, 2020Assignee: MITSUBISHI HITACHI POWER SYSTEMS, LTD.Inventors: Yukihiro Tominaga, Keigo Matsumoto, Kazuhiro Domoto, Ryuichiro Tanaka, Naofumi Abe, Jun Kasai
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Patent number: 10281142Abstract: A solid-fuel-fired burner that suppresses a high-temperature oxygen remaining region formed at the outer circumference of a flame and that can decrease the amount of NOx eventually produced is provided. A solid-fuel-fired burner that is used in a burner section of a solid-fuel-fired boiler for performing low-NOx combustion separately in the burner section and in an additional-air injection section and that injects powdered solid-fuel and air into a furnace includes a fuel burner having internal flame stabilization and a secondary-air injection port that does not perform flame stabilization, in which the air ratio in the fuel burner is set to 0.85 or more.Type: GrantFiled: June 7, 2010Date of Patent: May 7, 2019Assignee: MITSUBISHI HEAVY INDUSTRIES, LTD.Inventors: Keigo Matsumoto, Koutaro Fujimura, Kazuhiro Domoto, Toshimitsu Ichinose, Naofumi Abe, Jun Kasai
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Patent number: 10228411Abstract: A circuit board testing apparatus detects sparking and partial discharge between wiring patterns on a circuit board to determine if the circuit board is defective. A constant current source feeds a constant current to a wiring pattern to be tested. A voltage measurement part measures the resulting voltage at the wiring pattern. A normal state voltage gradient calculation part calculates a voltage gradient in a normal state where there is no sparking or partial discharge. A determination part determines whether the voltage gradient remains invariant, by comparing voltage measurement results within a predetermined range with an estimated value of the voltage based on the voltage gradient in the normal state. The determination part determines whether a circuit board is defective, on the basis of whether the voltage gradient remains invariant.Type: GrantFiled: August 27, 2014Date of Patent: March 12, 2019Assignee: Nidec-Read CorporationInventor: Jun Kasai
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Publication number: 20190055485Abstract: A pulverized-fuel supply unit includes a hopper, first nozzles, second nozzles, a pressurizing-gas supply device, a fluidization-gas supply device, and a pulverized-fuel supply line. The hopper has a hollow to store therein pulverized fuel. The first nozzles are provided to the hopper. The second nozzles are provided to a vertically lower part of the hopper below the plurality of first nozzles. The pressurizing-gas supply device is configured to supply pressurizing gas to increase internal pressure of the hopper. The fluidization-gas supply device is configured to supply fluidization gas to fluidize the pulverized fuel in the hopper. The pulverized-fuel supply line is provided to a vertically lower part of the hopper. The pressurizing-gas supply device supplies pressurizing gas to the first nozzles and the second nozzles. The fluidization-gas supply device supplies fluidization gas to the second nozzles.Type: ApplicationFiled: January 23, 2017Publication date: February 21, 2019Applicant: MITSUBISHI HITACHI POWER SYSTEMS, LTD.Inventors: Jun Kasai, Koji Nishimura, Yuichiro Urakata
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Patent number: 10197616Abstract: In an insulation inspection apparatus configured to perform insulation inspection of a wiring pattern, when a voltage for performing the insulation inspection is applied between inspection objects, a current control unit controls a first current to be greater than a second current, the first current being supplied until the potential difference between the first inspection part and the second inspection part reaches the predetermine potential difference, the second current being supplied when the predetermined potential difference is reached.Type: GrantFiled: March 18, 2014Date of Patent: February 5, 2019Assignee: NIDEC-READ CORPORATIONInventor: Jun Kasai
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Publication number: 20180195715Abstract: A combustion burner includes a plurality of splitters (5), (6), (7) configured to divide a fuel gas flow by a widened portion where a width of the widened portion increases as the widened portion extends in the direction of the fuel gas flow. The splitters include: slitted splitters (5), (6) configured to slits (SL) at a downstream end in the fuel gas flow; and non-slitted splitters (7) configured to adjacently to the slitted splitters (5), (6), each of the non-slitted splitters (7) configured to the widened portion at a downstream end in the fuel gas flow, and configured to a fixed width in a direction of the longitudinal axis.Type: ApplicationFiled: August 1, 2016Publication date: July 12, 2018Applicant: MITSUBISHI HITACHI POWER SYSTEMS, LTD.Inventors: Yukihiro Tominaga, Keigo Matsumoto, Kazuhiro Domoto, Ryuichiro Tanaka, Naofumi Abe, Jun Kasai
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Patent number: 9869469Abstract: A combustion burner 1 includes a fuel nozzle 2 that injects fuel gas prepared by mixing solid fuel and primary air, secondary air nozzles 3, 4 that inject secondary air from the outer periphery of the fuel nozzle 2, and a flame holder 5 that is arranged in an opening of the fuel nozzle 2. In the combustion burner 1, the flame holder 5 has a splitting shape that widens in the flow direction of the fuel gas. When seen in cross section along a direction in which the flame holder 5 widens, the cross section passing through the central axis of the fuel nozzle 2, a maximum distance h from the central axis of the fuel nozzle 2 to the widened end of the flame holder 5 and an inside diameter r of the opening 21 of the fuel nozzle 2 satisfy h/(r/2)<0.6.Type: GrantFiled: July 28, 2015Date of Patent: January 16, 2018Assignee: MITSUBISHI HEAVY INDUSTRIES, LTD.Inventors: Keigo Matsumoto, Koutaro Fujimura, Kazuhiro Domoto, Toshimitsu Ichinose, Naofumi Abe, Jun Kasai
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Patent number: 9702545Abstract: An oil-fired burner (30A) for warming, disposed adjacent to the outer periphery of a pulverized coal burner which inputs pulverized coal and air into a furnace, includes: an oil gun (32) for inputting an oil fuel disposed at the center of an outlet opening of a nozzle main body (31) substantially rectangular in cross-section; and a secondary air input port (40) disposed so as to surround the outer periphery of the oil gun (32), wherein the secondary air input port (40) is constituted of: a central arc section (41) substantially similar in shape to a circular diffuser (34) mounted on the leading end side of the oil gun (32); and rectangular sections (42L, 42R) provided continuously from both sides of the central arc section (41) and narrowed in face-to-face dimension in the direction of the adjacent pulverized coal burners so as to increase the distance from them.Type: GrantFiled: October 31, 2012Date of Patent: July 11, 2017Assignee: MITSUBISHI HEAVY INDUSTRIES, LTD.Inventors: Keigo Matsumoto, Kazuhiro Domoto, Naofumi Abe, Jun Kasai
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Patent number: 9671108Abstract: Provided is a combustion burner including: a fuel nozzle (51) that is able to blow a fuel gas obtained by mixing pulverized coal with primary air; a secondary air nozzle (52) that is able to blow secondary air from the outside of the fuel nozzle (51); a flame stabilizer (54) that is provided at a front end portion of the fuel nozzle (51) so as to be near the axis center; and a rectification member (55) that is provided between the inner wall surface of the fuel nozzle (51) and the flame stabilizer (54), wherein an appropriate flow of a fuel gas obtained by mixing solid fuel with air may be realized.Type: GrantFiled: March 7, 2012Date of Patent: June 6, 2017Assignee: MITSUBISHI HEAVY INDUSTRIES, LTD.Inventors: Keigo Matsumoto, Kazuhiro Domoto, Naofumi Abe, Jun Kasai
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Patent number: 9606166Abstract: An insulation inspection technique for allowing the occurrence of sparks to be detected more satisfactorily and allowing a board in which sparks have occurred to be more satisfactorily detected as being detective is provided. An insulation inspection apparatus detects a voltage induced between insulation inspection target wiring patterns by the application of a voltage during a time period from the start of the voltage application between the insulation inspection target wiring patterns to a predetermined time when the voltage between the insulation inspection target wiring patterns has stabilized. When a voltage drop due to sparks occurring between the insulation inspection target wiring patterns is detected during the time period, the board to be inspected is determined to be defective. In particular, supply current during the time period is set in accordance with the number of inspection points of an upstream wiring pattern of the insulation inspection target wiring patterns.Type: GrantFiled: March 27, 2014Date of Patent: March 28, 2017Assignee: Nidec-Read CorporationInventor: Jun Kasai
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Publication number: 20170045221Abstract: Provided is a combustion burner including: a fuel nozzle (51) that is able to blow a fuel gas obtained by mixing pulverized coal with primary air; a secondary air nozzle (52) that is able to blow secondary air from the outside of the fuel nozzle (51); a flame stabilizer (54) that is provided at a front end portion of the fuel nozzle (51) so as to be near the axis center; and a rectification member (55) that is provided between the inner wall surface of the fuel nozzle (51) and the flame stabilizer (54), wherein an appropriate flow of a fuel gas obtained by mixing solid fuel with air may be realized.Type: ApplicationFiled: August 19, 2016Publication date: February 16, 2017Applicant: MITSUBISHI HEAVY INDUSTRIES, LTD.Inventors: Keigo Matsumoto, Kazuhiro Domoto, Naofumi Abe, Jun Kasai