Patents by Inventor Yuki Arai
Yuki Arai 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: 20210072157Abstract: A fluorescence imaging device includes a display unit that displays an operation screen receiving an operation input, and the display unit displays a setting operation screen including a parameter setting field in which a parameter relating to blue shift correction for correcting shade of a sample image caused by a difference in an incidence angle of fluorescence emitted from each sample at each position where the fluorescence is incident on an optical filter is to be set.Type: ApplicationFiled: September 10, 2020Publication date: March 11, 2021Applicant: FUJIFILM CorporationInventor: Yuki ARAI
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Publication number: 20200399858Abstract: A controller controls a first drive source and a second drive source based on a rotation speed of a right rear wheel measured by a rotation speed sensor and a rotation speed of a left rear wheel measured by a rotation speed sensor, to thereby independently control a rotation speed of each of a right front wheel and a left front wheel.Type: ApplicationFiled: February 26, 2019Publication date: December 24, 2020Applicant: KOMATSU LTD.Inventors: Shintaro KOBAYASHI, Yuki ARAI, Takeshi KAMIMAE
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Publication number: 20200379039Abstract: An electronic component handler includes a container mounting section, an electronic-component mounting section, a device conveying head configured to hold an IC device and convey the IC device between the container mounting section and the electronic-component mounting section, a position detecting section configured to detect a reference position of the device conveying head, and a control section configured to control the device conveying head. The control section calculates, based on information concerning the reference position of the device conveying head detected by the position detecting section, a teaching position of the device conveying head and, when a distance between the calculated teaching position and a stored teaching position is equal to or larger than a predetermined value, determines that the calculated teaching position is abnormal.Type: ApplicationFiled: May 28, 2020Publication date: December 3, 2020Inventor: Yuki ARAI
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Patent number: 10800225Abstract: A working vehicle includes an engine, an air blowing device, an exhaust gas post-processing device, and a guide device. The air blowing device is disposed in front of the engine. The exhaust gas post-processing device processes exhaust gas from the engine, and is disposed above the engine. The guide device lifts and guides at least portion of the air from the air blowing device to an upper side where the exhaust gas post-processing device is provided.Type: GrantFiled: August 3, 2016Date of Patent: October 13, 2020Assignee: KOMATSU LTD.Inventors: Yuki Arai, Hirokazu Ashikawa, Tomoyuki Moriyama, Satoshi Matsumoto
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Patent number: 10666102Abstract: An electric machine capable of easily and efficiently assembling a rotor core to a rotating shaft is provided. A rotor core is formed by laminating a first steel plate consisting of one or more electromagnetic steel plates having a first protrusion portion to be accommodated in a groove portion of a rotating shaft and a second steel plate consisting of one or more electromagnetic steel plates having a second protrusion portion to be accommodated in the groove portion of the rotating shaft. The first protrusion portion of the first steel plate has a first engaging portion deformed by a side surface of the groove portion of the rotating shaft. At least a part of the first engaging portion of the first steel plate is disposed in a space formed between a second protrusion portion of the second steel plate and the side surface of a groove portion of the rotating shaft.Type: GrantFiled: July 19, 2017Date of Patent: May 26, 2020Assignee: Hitachi Automotive Systems, Ltd.Inventors: Hiromitsu Okamoto, Shinji Yamazaki, Yuichiro Baba, Ryoji Kobayashi, Motoo Kitahara, Yuki Arai
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Patent number: 10619013Abstract: A composite material includes a resinous particulate material, and an inorganic particulate material having a particle diameter being smaller than that of the resinous particulate material, fused welded onto a surface of the resinous particulate material, formed of an inorganic oxide, and including OH groups generated by fuse welding in the surface. The composite particulate material exhibits a degree of sphericity of 0.8 or more, and a has volumetric average particle diameter of from 0.1 to 100 ?m.Type: GrantFiled: November 5, 2019Date of Patent: April 14, 2020Assignee: ADMATECHS CO., LTD.Inventors: Hiroyuki Onda, Nobutaka Tomita, Yuki Arai
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Patent number: 10591192Abstract: There are provided a heat exchange apparatus and an air conditioner in which an occurrence of uneven refrigerant distribution of a heat exchanger is reduced such that heat exchange performance improves. The heat exchange apparatus includes: a heat-transfer pipe through which a refrigerant flows; a heat exchanger in which a plurality of the heat-transfer pipes are connected to one another; a distributor that distributes the refrigerant to the plurality of heat-transfer pipes; an inflow pipe that causes the refrigerant to flow into the distributor; and a confluent pipe which is connected to an intermediate position of the inflow pipe and in which the refrigerant flowing through an inside thereof is to merge with the refrigerant flowing through an inside of the inflow pipe. A merging part between the inflow pipe and the confluent pipe is positioned in the vicinity of the distributor.Type: GrantFiled: February 27, 2015Date of Patent: March 17, 2020Assignee: Hitachi-Johnson Controls Air Conditioning, Inc.Inventors: Atsuhiko Yokozeki, Hiroaki Tsuboe, Yoshiharu Tsukada, Yuki Arai
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Publication number: 20200071471Abstract: A composite material includes a resinous particulate material, and an inorganic particulate material having a particle diameter being smaller than that of the resinous particulate material, fused welded onto a surface of the resinous particulate material, formed of an inorganic oxide, and including OH groups generated by fuse welding in the surface. The composite particulate material exhibits a degree of sphericity of 0.8 or more, and a has volumetric average particle diameter of from 0.1 to 100 ?m.Type: ApplicationFiled: November 5, 2019Publication date: March 5, 2020Applicant: ADMATECHS CO., LTD.Inventors: Hiroyuki ONDA, Nobutaka Tomita, Yuki Arai
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Publication number: 20200014260Abstract: In a rotor, a permanent magnet 300 is an angulated pillar member of which the cross section perpendicular to the rotor shaft center is rectangular, and includes two pairs of facing side surfaces 310 to 340 which extend along the rotor shaft center, and the paired-up side surfaces 310 and 320 are provided such that one side surface is provided on a side near the rotor shaft center and the other one is provided on the outer peripheral side of the rotor. In the magnet storage slot 200A, a protruding portion 210 is provided which protrudes from an inner peripheral surface of the slot and abuts on a side surface 310 on a side near the rotor shaft center of any pair of side surfaces 310 and 320 in the two pairs.Type: ApplicationFiled: January 29, 2018Publication date: January 9, 2020Applicant: HITACHI AUTOMOTIVE SYSTEMS, LTD.Inventors: Yuki ARAI, Shinji YAMAZAKI, Motoo KITAHARA
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Publication number: 20190312493Abstract: An object of the present invention is to suppress reduction of insulation reliability between stator coils. A method of manufacturing a rotary electric machine according to the present invention is a method of manufacturing a stator including an insulating member intervening between a plurality of coil end portions each protruding from a stator core, the method including: a first step of disposing an interposed member to cover part of the insulating member between the plurality of coil end portions; and a second step of welding part of each of the plurality of coil end portions.Type: ApplicationFiled: October 24, 2017Publication date: October 10, 2019Applicant: HITACHI AUTOMOTIVE SYSTEMS, LTD.Inventors: Yuki ARAI, Motoo KITAHARA
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Patent number: 10386081Abstract: A heat exchanger includes a refrigerant flow path into which a gas refrigerant flows from two gas-side inlets in the second row, that are positioned off from each other. Refrigerant flow paths from the two gas-side inlets converge in the one end portion. The refrigerant flow path connects to a heat-transfer pipe in the first row from the second row. The refrigerant flow path includes a refrigerant flow path which is formed in a range from the same stage as one of the gas-side inlets of the second row to the same stage as the other of the gas-side inlets of the second row, while being arranged along both ways between the one end portion and the other end portion in the first row, and the refrigerant flow path extends to a liquid-side outlet.Type: GrantFiled: October 5, 2015Date of Patent: August 20, 2019Assignee: Hitachi-Johnson Controls Air Conditioning, Inc.Inventors: Atsuhiko Yokozeki, Hiroaki Tsuboe, Yoshiharu Tsukada, Yuki Arai
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Publication number: 20190252936Abstract: An electric machine capable of easily and efficiently assembling a rotor core to a rotating shaft is provided. A rotor core is formed by laminating a first steel plate consisting of one or more electromagnetic steel plates having a first protrusion portion to be accommodated in a groove portion of a rotating shaft and a second steel plate consisting of one or more electromagnetic steel plates having a second protrusion portion to be accommodated in the groove portion of the rotating shaft. The first protrusion portion of the first steel plate has a first engaging portion deformed by a side surface of the groove portion of the rotating shaft. At least a part of the first engaging portion of the first steel plate is disposed in a space formed between a second protrusion portion of the second steel plate and the side surface of a groove portion of the rotating shaft.Type: ApplicationFiled: July 19, 2017Publication date: August 15, 2019Inventors: Hiromitsu OKAMOTO, Shinji YAMAZAKI, Yuichiro BABA, Ryoji KOBAYASHI, Motoo KITAHARA, Yuki ARAI
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Patent number: 10113591Abstract: A magnetic fluid sealing structure (1) for high-speed rotation for sealing a gap (S) between a shaft member (2) and a housing member (3) disposed around the shaft member (2), which are rotatable, includes: magnetic force generating means (4) which is fixed to the housing member (3) and generates a magnetic force; magnetic pole members (5) disposed on both sides in an axial direction of the magnetic force generating means (4); and a magnetic fluid (7) which is magnetically held between the magnetic pole members (5) and the shaft member (2) by the magnetic force of the magnetic force generating means (4) and seals the gap (S) therebetween, in which the shaft member (2) has a plurality of different material layers concentrically laminated in a radial direction, and an outermost diameter layer (23) of the shaft member (2), which holds the magnetic fluid (7), is made of a magnetic material.Type: GrantFiled: October 23, 2015Date of Patent: October 30, 2018Assignees: RAILWAY TECHNICAL RESEARCH INSTITUTE, EAGLE INDUSTRY CO., LTD.Inventors: Tomohisa Yamashita, Masafumi Ogata, Yuki Arai, Keisuke Yoshizawa, Yoshihisa Takano, Shinji Nishida
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Publication number: 20180215232Abstract: A working vehicle includes an engine, an air blowing device, an exhaust gas post-processing device, and a guide device. The air blowing device is disposed in front of the engine. The exhaust gas post-processing device processes exhaust gas from the engine, and is disposed above the engine. The guide device lifts and guides at least portion of the air from the air blowing device to an upper side where the exhaust gas post-processing device is provided.Type: ApplicationFiled: August 3, 2016Publication date: August 2, 2018Inventors: Yuki Arai, Hirokazu Ashikawa, Tomoyuki Moriyama, Satoshi Matsumoto
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Publication number: 20170328614Abstract: There are provided a heat exchange apparatus and an air conditioner in which an occurrence of uneven refrigerant distribution of a heat exchanger is reduced such that heat exchange performance improves. The heat exchange apparatus includes: a heat-transfer pipe through which a refrigerant flows; a heat exchanger in which a plurality of the heat-transfer pipes are connected to one another; a distributor that distributes the refrigerant to the plurality of heat-transfer pipes; an inflow pipe that causes the refrigerant to flow into the distributor; and a confluent pipe which is connected to an intermediate position of the inflow pipe and in which the refrigerant flowing through an inside thereof is to merge with the refrigerant flowing through an inside of the inflow pipe. A merging part between the inflow pipe and the confluent pipe is positioned in the vicinity of the distributor.Type: ApplicationFiled: February 27, 2015Publication date: November 16, 2017Inventors: Atsuhiko YOKOZEKI, Hiroaki TSUBOE, Yoshiharu TSUKADA, Yuki ARAI
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Publication number: 20170268790Abstract: A heat exchanger includes a refrigerant flow path into which a gas refrigerant flows from two gas-side inlets in the second row, that are positioned off from each other. Refrigerant flow paths from the two gas-side inlets converge in the one end portion. The refrigerant flow path connects to a heat-transfer pipe in the first row from the second row. The refrigerant flow path includes a refrigerant flow path which is formed in a range from the same stage as one of the gas-side inlets of the second row to the same stage as the other of the gas-side inlets of the second row, while being arranged along both ways between the one end portion and the other end portion in the first row, and the refrigerant flow path extends to a liquid-side outlet.Type: ApplicationFiled: October 5, 2015Publication date: September 21, 2017Applicant: Johnson Controls-Hitachi Air Conditioning Technology (Hong Kong) LimitedInventors: Atsuhiko YOKOZEKI, Hiroaki TSUBOE, Yoshiharu TSUKADA, Yuki ARAI
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Publication number: 20170248168Abstract: A magnetic fluid sealing structure (1) for high-speed rotation for sealing a gap (S) between a shaft member (2) and a housing member (3) disposed around the shaft member (2), which are rotatable, includes: magnetic force generating means (4) which is fixed to the housing member (3) and generates a magnetic force; magnetic pole members (5) disposed on both sides in an axial direction of the magnetic force generating means (4); and a magnetic fluid (7) which is magnetically held between the magnetic pole members (5) and the shaft member (2) by the magnetic force of the magnetic force generating means (4) and seals the gap (S) therebetween, in which the shaft member (2) has a plurality of different material layers concentrically laminated in a radial direction, and an outermost diameter layer (23) of the shaft member (2), which holds the magnetic fluid (7), is made of a magnetic material.Type: ApplicationFiled: October 23, 2015Publication date: August 31, 2017Applicants: RAILWAY TECHNICAL RESEARCH INSTITUTE, EAGLE INDUSTRY CO., LTD.Inventors: Tomohisa YAMASHITA, Masafumi OGATA, Yuki ARAI, Keisuke YOSHIZAWA, Yoshihisa TAKANO, Shinji NISHIDA
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Patent number: 9562460Abstract: A motor grader includes an engine, a power transmission apparatus, a selective catalytic reduction apparatus, a fuel tank and a reducing agent tank. The power transmission apparatus is configured to transmit power from the engine. The selective catalytic reduction apparatus is configured to process exhaust from the engine. The fuel tank is configured to retain fuel. The reducing agent tank is configured to retain a reducing agent. The fuel tank is arranged so as to at least partially overlap with the engine in a planar view. The fuel tank is arranged between the power transmission apparatus and the reducing agent tank in a vehicle front to back direction.Type: GrantFiled: December 26, 2012Date of Patent: February 7, 2017Assignee: KOMATSU LTD.Inventor: Yuki Arai
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Patent number: 9267268Abstract: A motor grader includes a fuel tank, a vehicle body frame, a left-side mount part, a right-side mount part, a rear-side mount part and a reducing agent tank. The left-side mount part and the right-side mount part are respectively disposed on a left lateral frame and a right lateral frame while being disposed on the both sides of the fuel tank in a vehicle width direction, and fix the fuel tank to the vehicle body frame. The rear-side mount part is disposed on the left lateral frame in the vehicle width direction while being disposed rearward of the fuel tank, and fixes the fuel tank to the vehicle body frame. The reducing agent tank is disposed rearward of and adjacently to the fuel tank while being disposed on the right lateral frame side, and accumulates a reducing agent for processing an exhaust gas from an engine.Type: GrantFiled: September 25, 2013Date of Patent: February 23, 2016Assignee: KOMATSU LTD.Inventors: Yuki Arai, Eiji Yamazaki
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Publication number: 20150308077Abstract: A motor grader includes a fuel tank, a vehicle body frame, a left-side mount part, a right-side mount part, a rear-side mount part and a reducing agent tank. The left-side mount part and the right-side mount part are respectively disposed on a left lateral frame and a right lateral frame while being disposed on both sides of the fuel tank in a vehicle width direction, and fix the fuel tank to the vehicle body frame. The rear-side mount part is disposed on the left lateral frame in the vehicle width direction while being disposed rearward of the fuel tank, and fixes the fuel tank to the vehicle body frame. The reducing agent tank is disposed rearward of and adjacently to the fuel tank while being disposed on the right lateral frame side, and accumulates a reducing agent for processing an exhaust gas from an engine.Type: ApplicationFiled: September 25, 2013Publication date: October 29, 2015Applicant: KOMATSU LTD.Inventors: Yuki ARAI, Eiji YAMAZAKI