Patents by Inventor Hiroyuki Hoshi
Hiroyuki Hoshi 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).
-
Publication number: 20240140735Abstract: The weight of a body-to-be-conveyed constituting a conveying device is reduced, and the friction force between the sliding surface of the body-to-be-conveyed and the conveyance path is reduced. A body-to-be-conveyed that is a component of a conveying device that uses electromagnetic force as thrust and can move in a horizontal direction includes a mover in which a bottom surface is arranged so that a predetermined gap is formed in a vertical direction with respect to the sliding surface thereof, in which the mover includes a permanent magnet and a cover, a gap facing surface of the permanent magnet facing the gap includes one magnetic pole, the cover is installed on a side of the permanent magnet opposite from the gap facing surface in the vertical direction, the horizontal outermost diameter of the cover is larger than the horizontal outermost diameter of the permanent magnet, and the cover is formed of a flat plate.Type: ApplicationFiled: August 19, 2020Publication date: May 2, 2024Inventors: Ryosuke HOSHI, Yasuaki AOYAMA, Satoru KANEKO, Hiroyuki KOBAYASHI, Takeshi TAMAKOSHI, Hiroshi WATANABE, Katsuhiro KAMBARA, Kuniaki ONIZAWA
-
Publication number: 20240125405Abstract: A solenoid valve includes: a valve body; a sleeve which the valve body is accommodated; a solenoid casing connected to the sleeve on a first end side in an axial direction of the solenoid valve, and is closed on a second end side opposed to the first end side in the axial direction; a solenoid molded body in the solenoid casing; a yoke including a tubular portion inside the solenoid molded body, a flange portion projecting radially outward from an end portion of the tubular portion on the second end side; a movable iron core, which moves in the axial direction inside the yoke. The valve body is moved with the iron core by energizing a coil of the solenoid molded body, and the flange portion has an annular outer peripheral surface that is continuous, and is disposed on the second end side of the solenoid molded body.Type: ApplicationFiled: February 8, 2022Publication date: April 18, 2024Inventors: Tadanobu KAWATO, Hiroyuki IWANAGA, Masaki HOSHI
-
Patent number: 11941549Abstract: The management device of an autonomous driving vehicle includes a congestion rate calculation unit and a waiting place setting unit. The congestion rate calculation unit is able to calculate the congestion rate of a parking lot adjoining each of a plurality of commercial facilities. In a case where the congestion rate of a neighbor parking lot, or a parking lot in the neighborhood of a boarding place contained in reservation information for an autonomous driving vehicle reserved for dispatch, during a waiting time period before the scheduled boarding time, is less than a congestion threshold, the waiting place setting unit sets the neighbor parking lot as a waiting place for the autonomous driving vehicle to wait during the waiting time period.Type: GrantFiled: February 17, 2022Date of Patent: March 26, 2024Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Shin Sakurada, Katsuya Hoshi, Hiroaki Sugiyama, Masahisa Sawada, Hiroyuki Ito, Makoto Segi, Hiroki Hattori
-
Publication number: 20240094234Abstract: The present invention controls liquid shaking during transportation while maintaining high-precision with respect to the stopping position of a specimen at the time of device start-up.Type: ApplicationFiled: November 10, 2021Publication date: March 21, 2024Inventors: Hiroyuki KOBAYASHI, Satoru KANEKO, Takahiro SUZUKI, Yasuaki AOYAMA, Ryosuke HOSHI, Hiroshi WATANABE, Shinji AZUMA
-
Patent number: 11933801Abstract: The present invention provides a transport device and a specimen analysis system including the transport device that reduce the pulsation of thrust for moving an object to be transported, reduce vibration of the object to be transported during transport, and realize stable transport. The transport device of the present invention includes a first electromagnet unit including a first tooth made of a magnetic body, a first core connected to the first tooth and made of a magnetic body, and a first winding formed around the first core; a second electromagnet unit including a second tooth installed adjacent to the first electromagnet unit and made of a magnetic body, a second core connected to the second tooth and made of a magnetic body, a second winding formed around the second core; and a magnetic coupling unit made of a magnetic body between the first tooth of the first electromagnet unit and the second tooth of the second electromagnet unit.Type: GrantFiled: November 10, 2020Date of Patent: March 19, 2024Assignee: Hitachi High-Tech CorporationInventors: Yasuaki Aoyama, Ryosuke Hoshi, Satoru Kaneko, Hiroyuki Kobayashi, Takeshi Tamakoshi, Hiroshi Watanabe, Katsuhiro Kambara, Kuniaki Onizawa
-
Patent number: 11912308Abstract: An autonomous vehicle allows passengers to transfer from a passenger vehicle, which is a relatively large vehicle, to the autonomous vehicle. The autonomous vehicle is provided with an autonomous travel control unit (steering control unit) configured to, when the passenger vehicle is stopped, cause the autonomous vehicle to pull up alongside the passenger vehicle such that an entrance (second entrance) of the autonomous vehicle is placed next to an entrance (first entrance) of the passenger vehicle.Type: GrantFiled: December 21, 2021Date of Patent: February 27, 2024Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Shin Sakurada, Katsuya Hoshi, Hiroaki Sugiyama, Masahisa Sawada, Hiroyuki Ito, Makoto Segi, Hiroki Hattori
-
Patent number: 10865463Abstract: A method for separating a light rare earth element and a heavy rare earth element includes at least the steps of: (1) obtaining, from a workpiece containing a light rare earth element and a heavy rare earth element, a composite oxide or mixture of oxides of the two; (2) dissolving the obtained composite oxide or mixture of oxides in hydrochloric acid and/or nitric acid; (3) adding a precipitant to the obtained solution to give a precipitate; (4) calcining the obtained precipitate; (5) adding the obtained calcine in an amount of 1.1 times to 3.0 times the upper solubility limit to hydrochloric acid and/or nitric acid having a concentration of 0.7 mol/L or more to give a solution and a residue; and (6) separating the obtained solution and residue, thereby giving the solution as a light rare earth element-rich inclusion and the residue as a heavy rare earth element-rich inclusion.Type: GrantFiled: August 25, 2016Date of Patent: December 15, 2020Assignee: HITACHI METALS, LTD.Inventor: Hiroyuki Hoshi
-
Patent number: 10316393Abstract: An object of the present invention is to provide a method for recovering a rare earth element, including subjecting a workpiece containing at least a rare earth element and an iron group element to an oxidation treatment, then turning the treatment environment into an environment where carbon is present, and subjecting an oxidation-treated workpiece to a heat treatment, thereby separating a rare earth element in the form of an oxide from an iron group element, according to which an oxide of a rare earth element can be efficiently separated from an iron group element at low treatment cost, and also wear and damage to the treatment container can be suppressed to allow the container to be used repeatedly for a long period of time.Type: GrantFiled: March 26, 2015Date of Patent: June 11, 2019Assignee: HITACHI METALS, LTD.Inventors: Hiroyuki Hoshi, Yu Miyamoto
-
Patent number: 10233516Abstract: An object of the present invention is to provide a method for recovering a heavy rare earth element from a workpiece containing at least a heavy rare earth element and an iron group element, which can be put into practical use as a low-cost, simple recycling system. The method for recovering a heavy rare earth element from a workpiece containing at least a heavy rare earth element and an iron group element of the present invention as a means for resolution is characterized by including at least the following step: a workpiece is subjected to an oxidation treatment or mixed with an oxidation-treated R—Fe—B based magnet alloy, and then subjected to a heat treatment in the presence of carbon at a temperature of 1000° C. or more, thereby separating a heavy rare earth element in the form of an oxide from an iron group element.Type: GrantFiled: January 27, 2014Date of Patent: March 19, 2019Assignee: HITACHI METALS, LTD.Inventors: Yu Miyamoto, Hiroyuki Hoshi, Atsushi Kikugawa
-
Patent number: 10081040Abstract: An object of the present invention is to provide a method for recovering a rare earth element from a workpiece containing at least a rare earth element and an iron group element, which can be put into practical use as a low-cost, simple recycling system. The method for recovering a rare earth element from a workpiece containing at least a rare earth element and an iron group element of the present invention as a means for resolution is characterized by including at least a step of separating a rare earth element in the form of an oxide from an iron group element by subjecting a workpiece to an oxidation treatment, then turning the treatment environment into an environment where carbon black is present, and subjecting the oxidation-treated workpiece to a heat treatment at a temperature of 1000° C. or more in an inert gas atmosphere or in vacuum.Type: GrantFiled: December 26, 2013Date of Patent: September 25, 2018Assignee: HITACHI METALS, LTD.Inventors: Yu Miyamoto, Hiroyuki Hoshi, Atsushi Kikugawa
-
Publication number: 20180245181Abstract: An object of the present invention is to provide a method useful for separating a light rare earth element and a heavy rare earth element, which, for example, when a light rare earth element and a heavy rare earth element are separated from a workpiece containing a light rare earth element and a heavy rare earth element by a solvent extraction method, makes it possible to reduce the amount of extractant or organic solvent used or downsize the apparatus, or makes it possible to reduce the work burden on the process, such as the analysis of the content ratio between the light rare earth element and the heavy rare earth element contained in the workpiece.Type: ApplicationFiled: August 25, 2016Publication date: August 30, 2018Applicant: HITACHI METALS, LTD.Inventor: Hiroyuki HOSHI
-
Patent number: 10023938Abstract: An object of the present invention is to provide a method according to which a rare earth element can be efficiently recovered from a workpiece containing at least a rare earth element and an iron group element, and also wear and damage to the treatment container can be suppressed, allowing the container to be used repeatedly for a long period of time. The method of the present invention as a means for resolution is characterized in that in the heat treatment of an oxidation-treated workpiece in the presence of carbon, when the oxidation-treated workpiece is placed in a treatment container, a carbon substance is interposed between the oxidation-treated workpiece and the bottom surface of the container, and the heat treatment is performed in an inert gas atmosphere or in vacuum at a temperature of 1300° C. or more.Type: GrantFiled: May 29, 2014Date of Patent: July 17, 2018Assignee: HITACHI METALS, LTD.Inventors: Hiroyuki Hoshi, Yu Miyamoto
-
Publication number: 20170137915Abstract: An object of the present invention is to provide a method for recovering a rare earth element, including subjecting a workpiece containing at least a rare earth element and an iron group element to an oxidation treatment, then turning the treatment environment into an environment where carbon is present, and subjecting an oxidation-treated workpiece to a heat treatment, thereby separating a rare earth element in the form of an oxide from an iron group element, according to which an oxide of a rare earth element can be efficiently separated from an iron group element at low treatment cost, and also wear and damage to the treatment container can be suppressed to allow the container to be used repeatedly for a long period of time.Type: ApplicationFiled: March 26, 2015Publication date: May 18, 2017Applicant: HITACHI METALS, LTD.Inventors: Hiroyuki HOSHI, Yu MIYAMOTO
-
Patent number: 9514887Abstract: An object of the present invention is to provide an aluminum foil that can make a positive electrode current collector thinner for size reduction and higher energy density of electrical storage devices, be produced easily and has a low surface resistance. An aluminum foil of the present invention as a means for achieving the object is characterized in that carbonaceous particles are dispersed and supported therein. The aluminum foil with carbonaceous particles dispersed and supported therein of the present invention can be produced by electrolysis.Type: GrantFiled: November 11, 2010Date of Patent: December 6, 2016Assignee: HITACHI METALS, LTD.Inventors: Atsushi Okamoto, Hiroyuki Hoshi, Setsuo Andou
-
Patent number: 9435009Abstract: An objective of the invention is to provide a method and system for separating a particular rare earth element from a rare earth magnet at a high separation ratio and by a simple process. There is provided a rare earth separation method for separating a first and a second groups of rare earth elements contained in a magnet, the method including: a starting powder preparation step from the magnet; a magnet component oxidation heat treatment step; a rare earth oxide separation step from the magnet components oxide powder; a powder size optimization step; a chlorinating agent mixing step; a chlorination/oxychlorination heat treatment step of forming a “first group rare earth chlorides”/“second group rare earth oxychlorides” mixture; a selective dissolution step of selectively dissolving the first group rare earth chlorides in the solvent and leaving the second group rare earth oxychlorides undissolved in solid phase form; and a solid-liquid separation step.Type: GrantFiled: October 8, 2013Date of Patent: September 6, 2016Assignee: Hitachi Metals, Ltd.Inventors: Hiroki Yamamoto, Katsuyoshi Furusawa, Hiroyuki Hoshi, Atsushi Kikugawa, Motoyuki Miyata, Hajime Murakami
-
Patent number: 9322082Abstract: An object of the present invention is to provide a method for recovering a rare earth element from a workpiece containing at least a rare earth element and an iron group element, which can be put into practical use as a low-cost, simple recycling system. The method of the present invention as a means for resolution is characterized by including at least a step of separating a rare earth element in the form of an oxide from an iron group element by subjecting a workpiece to an oxidation treatment, then turning the treatment environment into an environment where carbon is present, and subjecting the oxidation-treated workpiece to a heat treatment at a temperature of 1150° C. or more.Type: GrantFiled: July 27, 2012Date of Patent: April 26, 2016Assignee: HITACHI METALS, LTD.Inventors: Hiroyuki Hoshi, Atsushi Kikugawa
-
Publication number: 20160108498Abstract: An object of the present invention is to provide a method according to which a rare earth element can be efficiently recovered from a workpiece containing at least a rare earth element and an iron group element, and also wear and damage to the treatment container can be suppressed, allowing the container to be used repeatedly for a long period of time. The method of the present invention as a means for resolution is characterized in that in the heat treatment of an oxidation-treated workpiece in the presence of carbon, when the oxidation-treated workpiece is placed in a treatment container, a carbon substance is interposed between the oxidation-treated workpiece and the bottom surface of the container, and the heat treatment is performed in an inert gas atmosphere or in vacuum at a temperature of 1300° C. or more.Type: ApplicationFiled: May 29, 2014Publication date: April 21, 2016Applicant: HITACHI METALS, LTD.Inventors: Hiroyuki HOSHI, Yu MIYAMOTO
-
Patent number: 9267216Abstract: A method for producing an aluminum foil of the present invention is characterized in that an aluminum film is formed on a surface of a substrate by electrolysis using a plating solution containing at least (1) a dialkyl sulfone, (2) an aluminum halide, and (3) at least one nitrogen-containing compound selected from the group consisting of an ammonium halide, a hydrogen halide salt of a primary amine, a hydrogen halide salt of a secondary amine, a hydrogen halide salt of a tertiary amine, and a quaternary ammonium salt represented by the general formula: R1R2R3R4N.X (R1 to R4 independently represent an alkyl group and are the same as or different from one another, and X represents a counteranion for the quaternary ammonium cation), then the film is separated from the substrate to obtain an aluminum foil, and the obtained aluminum foil is subjected to a heat treatment.Type: GrantFiled: November 10, 2011Date of Patent: February 23, 2016Assignee: HITACHI METALS LTD.Inventors: Atsushi Okamoto, Hiroyuki Hoshi, Setsuo Andou
-
Patent number: 9219279Abstract: An object of the present invention is to provide a method for producing a high-ductility, high-purity aluminum foil at a high film formation rate by electrolysis using a plating solution having a low chlorine concentration. A method for producing an aluminum foil of the present invention as a means for achieving the object is characterized in that an aluminum film is formed on a surface of a substrate by electrolysis using a plating solution at least containing (1) a dialkyl sulfone, (2) an aluminum halide, and (3) at least one nitrogen-containing compound selected from the group consisting of an ammonium halide, a hydrogen halide salt of a primary amine, a hydrogen halide salt of a secondary amine, a hydrogen halide salt of a tertiary amine, and a quaternary ammonium salt represented by a general formula: R1R2R3R4N.X (wherein R1 to R4 independently represent an alkyl group and X represents a counteranion for the quaternary ammonium cation), and then the film is removed from the substrate.Type: GrantFiled: June 28, 2010Date of Patent: December 22, 2015Assignee: HITACHI METALS, LTD.Inventors: Atsushi Okamoto, Hiroyuki Hoshi, Setsuo Andou
-
Publication number: 20150361526Abstract: An object of the present invention is to provide a method for recovering a heavy rare earth element from a workpiece containing at least a heavy rare earth element and an iron group element, which can be put into practical use as a low-cost, simple recycling system. The method for recovering a heavy rare earth element from a workpiece containing at least a heavy rare earth element and an iron group element of the present invention as a means for resolution is characterized by including at least the following step: a workpiece is subjected to an oxidation treatment or mixed with an oxidation-treated R—Fe—B based magnet alloy, and then subjected to a heat treatment in the presence of carbon at a temperature of 1000° C. or more, thereby separating a heavy rare earth element in the form of an oxide from an iron group element.Type: ApplicationFiled: January 27, 2014Publication date: December 17, 2015Inventors: Yu MIYAMOTO, Hiroyuki HOSHI, Atsushi KIKUGAWA