Patents by Inventor Kohei Yoshikawa
Kohei Yoshikawa 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: 20190057810Abstract: Provided is a reactor that can prevent a temperature sensor from being attached to a wound portion of a coil in a wrong direction. The reactor includes a temperature sensor having a sensor main portion attached to an outer peripheral surface of a wound portion and a wire extending from the sensor main portion. A sensor housing portion houses the sensor main portion. The sensor main portion has a detection surface facing the wound portion and a projecting portion protruding from a back surface of the sensor main portion opposite of the detection surface. The sensor housing portion has a pair of side wall portions opposing respective side surfaces of the sensor main portion. A height of a portion of the sensor main portion that has the projecting portion is larger than a width of that portion and larger than the distance between the side wall portions.Type: ApplicationFiled: August 20, 2018Publication date: February 21, 2019Inventors: Seiji SHITAMA, Akinori OOISHI, Hajime KAWAGUCHI, Junji IDO, Takashi MISAKI, Kohei YOSHIKAWA, Shinichiro YAMAMOTO
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Publication number: 20190022572Abstract: A carbon dioxide separation/recovery device for separating and recovering carbon dioxide from a gas to be processed and containing nitrogen oxides and carbon dioxide by using a carbon dioxide scavenger, including a carbon dioxide trapping unit having the carbon dioxide scavenger, in which the carbon dioxide trapping unit includes: a gas flow inlet which introduces the gas to be processed; a heating unit of heating a scavenger heating gas used upon desorption of carbon dioxide trapped by the carbon dioxide scavenger to a predetermined temperature; a cooling gas introduction port which introduces a scavenger cooling gas used when cooling the carbon dioxide scavenger; and a moisture mixing part which adds moisture to a gas for nitrogen oxide desorption used in desorption of nitrogen oxides from the carbon dioxide scavenger.Type: ApplicationFiled: August 24, 2016Publication date: January 24, 2019Inventors: Kohei YOSHIKAWA, Masato KANEEDA, Hidehiro NAKAMURA, Masahiro AOSHIMA, Toshikatsu SHIMAZAKI
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Publication number: 20180250629Abstract: Provided is an exhaust-gas treatment equipment including: a reaction container filled with a gas capture material that captures a particular gas component, the reactor container emitting gas obtained by removing the particular gas component from supplied gas by reaction of the supplied gas with the gas capture material; a temperature measuring element disposed in the reaction container, the temperature measuring element measuring a temperature of the gas capture material in the reaction container; a moving unit that freely moves the temperature measuring element in a direction that is parallel to a flow of the supplied gas flowing in the reaction container; and a control unit that estimates a deterioration state of the gas capture material using temperatures of the gas capture material at a plurality of different positions in the reaction container, the temperatures being measured by the temperature measuring element.Type: ApplicationFiled: August 8, 2016Publication date: September 6, 2018Applicant: HITACHI CHEMICAL COMPANY, LTD.Inventors: Kohei YOSHIKAWA, Masato KANEEDA, Hidehiro NAKAMURA
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Publication number: 20180021717Abstract: Disclosed is a CO2 concentration reducing device for separating and removing CO2 from a gas containing CO2 with a CO2 adsorbent, the CO2 concentration reducing device including: an adsorbent container which contains the CO2 adsorbent; and a heating unit which heats the CO2 adsorbent by an induction heating or a dielectric heating. Thus, a ventilation quantity can be reduced when CO2 accumulated in a room is removed, and an electric power required for the ventilation and the electric power required for air conditioning can be reduced.Type: ApplicationFiled: February 24, 2016Publication date: January 25, 2018Applicant: HITACHI CHEMICAL COMPANY, LTD.Inventors: Kohei YOSHIKAWA, Masato KANEEDA, Hidehiro NAKAMURA, Toshiaki SHIRASAKA
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Patent number: 9375673Abstract: A CO2 separation unit for recovering CO2 from a CO2-containing gas by using a solid CO2 capturing material, in which the amount of used steam is decreased: the unit comprising a capturing material container, a first pipeline for allowing the CO2-containing gas to flow therethrough into the capturing material container, a second pipeline for allowing a gas from which CO2 has been removed to be discharged therethrough, a third pipeline for introducing a steam-containing gas to the inside of the capturing material container, a fourth pipeline for allowing a desorbed CO2-containing gas to be discharged therethrough, wherein the unit further includes a compressor for compressing steam, a fifth pipeline for connecting the capturing material container with a suction port of the compressor, and a sixth pipeline for connecting a discharge port of the compressor with the third pipeline.Type: GrantFiled: January 15, 2013Date of Patent: June 28, 2016Assignee: Hitachi, Ltd.Inventors: Kohei Yoshikawa, Hiroki Sato, Masato Kaneeda, Shuichi Kanno, Hisayuki Orita
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Publication number: 20150298044Abstract: In a CO2 absorption tower in which a CO2 sorbent is placed, a decrease in CO2 sorption amount due to an increase in temperature in the absorption tower because of the CO2 sorption reaction heat is prevented. In a CO2 capture and separation system, which captures and separates CO2 from a CO2-containing gas, two or more different types of CO2 sorbents are placed in an absorption tower.Type: ApplicationFiled: February 12, 2013Publication date: October 22, 2015Inventors: Hiroki Sato, Kohei Yoshikawa, Masato Kaneeda, Shuichi Kanno
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Publication number: 20150013543Abstract: A CO2 separation unit for recovering CO2 from a CO2-containing gas by using a solid CO2 capturing material, in which the amount of used steam is decreased: the unit comprising a capturing material container (1) having a CO2 capturing material for capturing CO2, a first pipeline (2a) for allowing the CO2-containing gas to flow therethrough into the capturing material container (1), a second pipeline (2b) for allowing a gas from which CO2 has been removed by the CO2 capturing material to be discharged therethrough from the capturing material container (1), a third pipeline (2c) for introducing a steam-containing gas to the inside of the capturing material container (1), a fourth pipeline (2d) for allowing a desorbed CO2-containing gas desorbed from the CO2 capturing material, while the steam-containing gas flows in the container, to be discharged therethrough from the capturing material container (1), wherein the unit further includes a compressor (4a) for compressing steam, a fifth pipeline (2e) for connectingType: ApplicationFiled: January 15, 2013Publication date: January 15, 2015Inventors: Kohei Yoshikawa, Hiroki Sato, Masato Kaneeda, Shuichi Kanno, Hisayuki Orita
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Patent number: 8752385Abstract: A boiler system including an electric power generation system having a boiler, a steam turbine for generating electric power by steams which received heat at a boiler, a condenser provided at the downstream thereof for condensing the steams, and a heater for heating condensed water by steams extracted from the steam turbine and, further, a CO2 capture system of sorbing and capturing a CO2 gas in an exhausted gas exhausted from the boiler by using a solid CO2 sorbent, and a chimney of exhausting an exhaust gas in the CO2 capture system after recovery of CO2 or an exhaust gas exhausted from the boiler, in which the temperature of a fluid concerned with the boiler system is increased by using the exhaust gas exhausted from the CO2 capture system.Type: GrantFiled: August 21, 2012Date of Patent: June 17, 2014Assignee: Hitachi, Ltd.Inventors: Masato Kaneeda, Hiroki Sato, Kohei Yoshikawa, Shuichi Kanno, Hisayuki Orita
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Publication number: 20140165058Abstract: Specifically, a service menu is set for each user ID to determine an information distribution range/distribution amount according to the service menu. Finally, “vendor lock-in” of an infrastructure (hardware, software) is a typical alternative to be adopted to provide high-quality service at low cost. Pieces of information obtained for each product are temporarily collected, are categorized at the same level into pieces of information for respective purposes (screens), and then are provided for users. This achieves proper capacity planning.Type: ApplicationFiled: November 11, 2013Publication date: June 12, 2014Applicant: Hitachi, Ltd.Inventors: Hideyuki KATO, Kenji SUMII, Shingo WAKAMATSU, Yuki TATEISHI, Kohei YOSHIKAWA, Akinao HARADA, Kazuhiko WATANABE, Kengo YAMATANI
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Publication number: 20130064746Abstract: A CO2 sorbent capable of efficiently sorbing carbon dioxide is provided. A CO2 sorbent for sorbing and separating carbon dioxide from a gas containing carbon dioxide contains a Ce oxide and having an average pore size of 60 ? or less.Type: ApplicationFiled: August 21, 2012Publication date: March 14, 2013Applicant: Hitachi, Ltd.Inventors: Kohei YOSHIKAWA, Hiroki Sato, Masato Kaneeda, Shuichi Kanno
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Publication number: 20130064720Abstract: A carbon dioxide recovery system is provided, in which, a filling rate of the carbon dioxide sorbent in the container indicated by f [%] is positive and larger than or equal to the value obtained by the following expression of 100×(p/(RT))×(x?C)/(a×(100+x/r?100×x/(rC)?x)+(p/(RT))×(x?C)), with respect to the effective molar quantity of the captured carbon dioxide per 1 L of the carbon dioxide sorbent (=a) of the carbon dioxide sorbent to be used, wherein a demanded concentration of recovered carbon dioxide is indicated by x [%], and an amount of the captured gases other than carbon dioxide is indicated by r, and a concentration of dried carbon dioxide in a carbon dioxide-containing gas is indicated by C [%], and a total pressure of the carbon dioxide sorbent occurring when carbon dioxide is captured is indicated by p [Pa].Type: ApplicationFiled: August 23, 2012Publication date: March 14, 2013Applicant: Hitachi, LtdInventors: Hiroki SATO, Kohei Yoshikawa, Masato Kaneeda, Hisayuki Orita, Shuichi Kanno
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Publication number: 20130062883Abstract: A boiler system including an electric power generation system having a boiler, a steam turbine for generating electric power by steams which received heat at a boiler, a condenser provided at the downstream thereof for condensing the steams, and a heater for heating condensed water by steams extracted from the steam turbine and, further, a CO2 capture system of sorbing and capturing a CO2 gas in an exhausted gas exhausted from the boiler by using a solid CO2 sorbent, and a chimney of exhausting an exhaust gas in the CO2 capture system after recovery of CO2 or an exhaust gas exhausted from the boiler, in which the temperature of a fluid concerned with the boiler system is increased by using the exhaust gas exhausted from the CO2 capture system.Type: ApplicationFiled: August 21, 2012Publication date: March 14, 2013Applicant: Hitachi, Ltd.Inventors: Masato Kaneeda, Hiroki Sato, Kohei Yoshikawa, Shuichi Kanno, Hisayuki Orita
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Patent number: 8375562Abstract: A manufacturing method of a rotating electric machine includes the steps of: preparing a plurality of split stator cores annularly arranged at intervals in a circumferential direction so that their inner end portions are aligned with an imaginary circle and a support member positioned inside the imaginary circle in a radial direction to support the inner end portions of split stator cores; mounting a fastening member on outer peripheries of split stator cores to press respective split stator cores inward in the radial direction; and displacing split stator cores pressed by fastening member inward in the radial direction while the support member is supporting split stator cores.Type: GrantFiled: October 21, 2008Date of Patent: February 19, 2013Assignee: Toyota Jidosha Kabushiki KaishaInventors: Yasuhiro Endo, Eiji Yamada, Yasushi Nishikuma, Kohei Yoshikawa
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Publication number: 20100231086Abstract: A manufacturing method of a rotating electric machine includes the steps of: preparing a plurality of split stator cores annularly arranged at intervals in a circumferential direction so that their inner end portions are aligned with an imaginary circle and a support member positioned inside the imaginary circle in a radial direction to support the inner end portions of split stator cores; mounting a fastening member on outer peripheries of split stator cores to press respective split stator cores inward in the radial direction; and displacing split stator cores pressed by fastening member inward in the radial direction while the support member is supporting split stator cores.Type: ApplicationFiled: October 21, 2008Publication date: September 16, 2010Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Yasuhiro Endo, Eiji Yamada, Yasushi Nishikuma, Kohei Yoshikawa
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Publication number: 20040267805Abstract: A system, may include, at least one of audio, image, and a video comprising a plurality of frames. A usage preferences description, describing preferences of a user with respect to the use of at least one of the audio, image, and video, where the description normally includes multiple preferences. In one aspect, a protection attribute with respect to at least one of the preferences indicates whether one of the preferences is considered public or private. Other aspects of the user preferences description include other attributes, alone or in combination.Type: ApplicationFiled: July 19, 2004Publication date: December 30, 2004Inventors: Muhammed Ibrahim Sezan, Petrus Van Beek, Yoshiaki Tomioka, Tadahide Shibao, Kohei Yoshikawa
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Publication number: 20040268390Abstract: A system, may include, at least one of audio, image, and a video comprising a plurality of frames. A usage preferences description, describing preferences of a user with respect to the use of at least one of the audio, image, and video, where the description normally includes multiple preferences. In one aspect, a protection attribute with respect to at least one of the preferences indicates whether one of the preferences is considered public or private. Other aspects of the user preferences description include other attributes, alone or in combination.Type: ApplicationFiled: July 19, 2004Publication date: December 30, 2004Inventors: Muhammed Ibrahim Sezan, Petrus Van Beek, Yoshiaki Tomioka, Tadahide Shibao, Kohei Yoshikawa
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Publication number: 20040268383Abstract: A system, may include, at least one of audio, image, and a video comprising a plurality of frames. A usage preferences description, describing preferences of a user with respect to the use of at least one of the audio, image, and video, where the description normally includes multiple preferences. In one aspect, a protection attribute with respect to at least one of the preferences indicates whether one of the preferences is considered public or private. Other aspects of the user preferences description include other attributes, alone or in combination.Type: ApplicationFiled: July 19, 2004Publication date: December 30, 2004Inventors: Muhammed Ibrahim Sezan, Patrus Van Beek, Yoshiaki Tomioka, Tadahide Shibao, Kohei Yoshikawa
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Publication number: 20040268389Abstract: A system, may include, at least one of audio, image, and a video comprising a plurality of frames. A usage preferences description, describing preferences of a user with respect to the use of at least one of the audio, image, and video, where the description normally includes multiple preferences. In one aspect, a protection attribute with respect to at least one of the preferences indicates whether one of the preferences is considered public or private. Other aspects of the user preferences description include other attributes, alone or in combination.Type: ApplicationFiled: July 19, 2004Publication date: December 30, 2004Inventors: Muhammed Ibrahim Sezan, Petrus Van Beek, Yoshiaki Tomioka, Tadahide Shibao, Kohei Yoshikawa
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Publication number: 20040261095Abstract: A system, may include, at least one of audio, image, and a video comprising a plurality of frames. A usage preferences description, describing preferences of a user with respect to the use of at least one of the audio, image, and video, where the description normally includes multiple preferences. In one aspect, a protection attribute with respect to at least one of the preferences indicates whether one of the preferences is considered public or private. Other aspects of the user preferences description include other attributes, alone or in combination.Type: ApplicationFiled: July 19, 2004Publication date: December 23, 2004Inventors: Muhammed Ibrahim Sezan, Petrus Van Beek, Yoshiaki Tomioka, Tadahide Shibao, Kohei Yoshikawa
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Publication number: 20040255150Abstract: A system, may include, at least one of audio, image, and a video comprising a plurality of frames. A usage preferences description, describing preferences of a user with respect to the use of at least one of the audio, image, and video, where the description normally includes multiple preferences. In one aspect, a protection attribute with respect to at least one of the preferences indicates whether one of the preferences is considered public or private. Other aspects of the user preferences description include other attributes, alone or in combination.Type: ApplicationFiled: July 19, 2004Publication date: December 16, 2004Inventors: Muhammed Ibrahim Sezan, Petrus Van Beek, Yoshiaki Tomioka, Tadahide Shibao, Kohei Yoshikawa