Patents by Inventor Hisashi Sugime
Hisashi Sugime 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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Patent number: 11527378Abstract: It is a CNT device (1) (carbon-metal structure) equipped with a carbon nanotube layer (2) (CNT layer 2; same hereafter) on a metal pedestal (4). The metal pedestal (4) is brazed to the CNT layer (2) with a brazing material layer (3) interposed therebetween. When manufacturing the CNT device (1), firstly, the CNT layer (2) is formed on a heat-resistant textured substrate (6). Next, the metal pedestal (4) is brazed to the CNT layer (2) that is on the heat-resistant textured substrate (6) with the brazing material layer (3) interposed therebetween. Then, the metal pedestal (4) (and the CNT layer 2) is peeled off the heat-resistant textured substrate (6) to transfer the CNT layer (2) from the heat-resistant textured substrate (6) to the metal pedestal (4).Type: GrantFiled: October 21, 2019Date of Patent: December 13, 2022Assignees: WASEDA UNIVERSITY, MEIDENSHA CORPORATIONInventors: Suguru Noda, Sae Kitagawa, Kotaro Yasui, Hisashi Sugime, Daizo Takahashi, Yuichi Nishikiori, Hayato Ochi, Rena Takahashi, Toshimasa Fukai
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Publication number: 20220274836Abstract: Provided are a carbon nanotube production device and production method capable of realizing high-temperature heating of a catalyst raw material in a floating catalyst chemical vapor deposition (FCCVD) method, and improving the quality and yield of carbon nanotubes synthesized. A carbon nanotube production device 1 includes a synthesis furnace 2 for synthesizing carbon nanotubes; a catalyst raw material supplying nozzle 3 for supplying a catalyst raw material used to synthesize carbon nanotubes to the synthesis furnace 2; and a nozzle temperature adjusting unit 6 capable of setting a temperature of an inner portion 4 of the catalyst raw material supplying nozzle 3 higher than a temperature of a reaction field 5 of the synthesis furnace 2.Type: ApplicationFiled: July 27, 2020Publication date: September 1, 2022Applicants: WASEDA UNIVERSITY, MEIJO NANO CARBON CO., LTD.Inventors: Suguru NODA, Katsuya NAMIKI, Zihao ZHANG, Toshio OSAWA, Hisashi SUGIME
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Publication number: 20210375572Abstract: It is a CNT device (1) (carbon-metal structure) equipped with a carbon nanotube layer (2) (CNT layer 2; same hereafter) on a metal pedestal (4). The metal pedestal (4) is brazed to the CNT layer (2) with a brazing material layer (3) interposed therebetween. When manufacturing the CNT device (1), firstly, the CNT layer (2) is formed on a heat-resistant textured substrate (6). Next, the metal pedestal (4) is brazed to the CNT layer (2) that is on the heat-resistant textured substrate (6) with the brazing material layer (3) interposed therebetween. Then, the metal pedestal (4) (and the CNT layer 2) is peeled off the heat-resistant textured substrate (6) to transfer the CNT layer (2) from the heat-resistant textured substrate (6) to the metal pedestal (4).Type: ApplicationFiled: October 21, 2019Publication date: December 2, 2021Applicants: WASEDA UNIVERSITY, MEIDENSHA CORPORATIONInventors: Suguru NODA, Sae KITAGAWA, Kotaro YASUI, Hisashi SUGIME, Daizo TAKAHASHI, Yuichi NISHIKIORI, Hayato OCHI, Rena TAKAHASHI, Toshimasa FUKAI
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Patent number: 10633249Abstract: A method for simultaneously producing carbon nanotubes and hydrogen according to the present invention is a method for simultaneously producing carbon nanotubes and hydrogen, in which using a carbon source containing carbon atoms and hydrogen atoms and being decomposed in a heated state, and a catalyst for producing carbon nanotubes and H2 from the carbon source, the above carbon nanotubes are synthesized on a support in a heated state, placed in a reactor, and simultaneously, the above H2 is synthesized from the above carbon source, the method comprising a synthesis step of flowing a source gas comprising the above carbon source over the above support, on which the above catalyst is supported, to synthesize the above carbon nanotubes on the above support and simultaneously synthesize the above H2 in a gas flow.Type: GrantFiled: June 19, 2015Date of Patent: April 28, 2020Assignees: The University of Tokyo, Hitachi Chemical Company, Ltd.Inventors: Suguru Noda, Dong Young Kim, Toshio Osawa, Hisashi Sugime, Kei Hasegawa, Eisuke Haba
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Publication number: 20160002033Abstract: A method for simultaneously producing carbon nanotubes and hydrogen according to the present invention is a method for simultaneously producing carbon nanotubes and hydrogen, in which using a carbon source containing carbon atoms and hydrogen atoms and being decomposed in a heated state, and a catalyst for producing carbon nanotubes and H2 from the carbon source, the above carbon nanotubes are synthesized on a support in a heated state, placed in a reactor, and simultaneously, the above H2 is synthesized from the above carbon source, the method comprising a synthesis step of flowing a source gas comprising the above carbon source over the above support, on which the above catalyst is supported, to synthesize the above carbon nanotubes on the above support and simultaneously synthesize the above H2 in a gas flow.Type: ApplicationFiled: June 19, 2015Publication date: January 7, 2016Inventors: Suguru Noda, Dong Young Kim, Toshio Osawa, Hisashi Sugime, Kei Hasegawa, Eisuke Haba
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Patent number: 9073045Abstract: The method for producing carbon nanotubes employs a carbon source that contains carbon and is decomposed when heated and a catalyst on a support that serves as a catalyst for production of carbon nanotubes from the carbon source. The method includes a catalyst loading step in which the catalyst starting material is distributed over the support to load the catalyst onto the support, a synthesis step in which the carbon nanotubes are synthesized on the support, and a separating step in which a separating gas stream is distributed over the support to separate the carbon nanotubes from the support, wherein the catalyst loading step, the synthesis step and the separating step are carried out while keeping the support in a heated state and switching supply of the catalyst starting material, the carbon source and the separating gas stream.Type: GrantFiled: March 6, 2009Date of Patent: July 7, 2015Assignee: Hitachi Chemical Company, Ltd.Inventors: Suguru Noda, Hisashi Sugime, Yukio Yamaguchi, Toshio Osawa, Kazunori Kakehi, Kei Hasegawa, Dong Young Kim
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Patent number: 9061909Abstract: A method for simultaneously producing carbon nanotubes and hydrogen according to the present invention is a method for simultaneously producing carbon nanotubes and hydrogen, in which using a carbon source containing carbon atoms and hydrogen atoms and being decomposed in a heated state, and a catalyst for producing carbon nanotubes and H2 from the carbon source, the above carbon nanotubes are synthesized on a support in a heated state, placed in a reactor, and simultaneously, the above H2 is synthesized from the above carbon source, the method comprising a synthesis step of flowing a source gas comprising the above carbon source over the above support, on which the above catalyst is supported, to synthesize the above carbon nanotubes on the above support and simultaneously synthesize the above H2 in a gas flow.Type: GrantFiled: September 9, 2010Date of Patent: June 23, 2015Assignees: The University of Tokyo, Hitachi Chemical Company, Ltd.Inventors: Suguru Noda, Dong Young Kim, Toshio Osawa, Hisashi Sugime, Kei Hasegawa, Eisuke Haba
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Patent number: 8518363Abstract: [Problems to be Solved]There is provided a method for production of a carbon nanotube, which allows for production of the carbon nanotube in a large scale and at a low cost. [Solution] The temperature of a catalyst loaded on a support is raised by heating the support and a raw material gas containing a carbon source is supplied on the catalyst to synthesize the carbon nanotube. The synthesized carbon nanotube is recovered, and after the recovery, the catalyst is subjected to a regeneration treatment to repeatedly utilize the support. Since the catalyst deteriorates, the catalyst is regenerated periodically or nonperiodically during the production. The regeneration treatment of the catalyst involves an oxidation treatment of the catalyst. Further, after the oxidation treatment, a reducing gas is fed to and brought into contact with the catalyst surface to reduce the catalyst. As the support, a honeycomb is used.Type: GrantFiled: September 7, 2007Date of Patent: August 27, 2013Assignee: Hitachi Chemical Company, Ltd.Inventors: Suguru Noda, Hisashi Sugime, Yukio Yamaguchi
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Publication number: 20120219490Abstract: A method for simultaneously producing carbon nanotubes and hydrogen according to the present invention is a method for simultaneously producing carbon nanotubes and hydrogen, in which using a carbon source containing carbon atoms and hydrogen atoms and being decomposed in a heated state, and a catalyst for producing carbon nanotubes and H2 from the carbon source, the above carbon nanotubes are synthesized on a support in a heated state, placed in a reactor, and simultaneously, the above H2 is synthesized from the above carbon source, the method comprising a synthesis step of flowing a source gas comprising the above carbon source over the above support, on which the above catalyst is supported, to synthesize the above carbon nanotubes on the above support and simultaneously synthesize the above H2 in a gas flow.Type: ApplicationFiled: September 9, 2010Publication date: August 30, 2012Inventors: Suguru Noda, Dong Young Kim, Toshio Osawa, Hisashi Sugime, Kei Hasegawa, Eisuke Haba
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Publication number: 20110085961Abstract: The method for producing carbon nanotubes of the invention employs a carbon source that contains carbon and is decomposed when heated and a catalyst that serves as a catalyst for production of carbon nanotubes from the carbon source, to synthesize the carbon nanotubes on a heated support placed in a reactor, the method comprising a catalyst loading step in which the catalyst starting material, as the starting material for the catalyst, is distributed over the support to load the catalyst onto the support, a synthesis step in which the carbon source is distributed over the support to synthesize the carbon nanotubes on the support, and a separating step in which a separating gas stream is distributed over the support to separate the carbon nanotubes from the support, wherein the catalyst loading step, the synthesis step and the separating step are carried out while keeping the support in a heated state and switching supply of the catalyst starting material, the carbon source and the separating gas stream.Type: ApplicationFiled: March 6, 2009Publication date: April 14, 2011Inventors: Suguru Noda, Hisashi Sugime, Yukio Yamaguchi, Toshio Osawa, Kazunori Kakehi, Kei Hasegawa, Dong Young Kim
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Publication number: 20100247421Abstract: [Problems to be Solved] There is provided a method for production of a carbon nanotube, which allows for production of the carbon nanotube in a large scale and at a low cost. [Solution] The temperature of a catalyst loaded on a support is raised by heating the support and a raw material gas containing a carbon source is supplied on the catalyst to synthesize the carbon nanotube. The synthesized carbon nanotube is recovered, and after the recovery, the catalyst is subjected to a regeneration treatment to repeatedly utilize the support. Since the catalyst deteriorates, the catalyst is regenerated periodically or nonperiodically during the production. The regeneration treatment of the catalyst involves an oxidation treatment of the catalyst. Further, after the oxidation treatment, a reducing gas is fed to and brought into contact with the catalyst surface to reduce the catalyst. As the support, a honeycomb is used.Type: ApplicationFiled: September 7, 2007Publication date: September 30, 2010Inventors: Suguru Noda, Hisashi Sugime, Yukio Yamaguchi