Patents by Inventor Arisa Yamada
Arisa Yamada 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: 11605807Abstract: According to one embodiment, an electrode group is provided. The electrode group includes a positive electrode that includes a lithium composite oxide LiMxMn2-xO4 (0<x?0.5, M is at least one selected from a group consisting of Ni, Cr, Fe, Cu, Co, Mg, and Mo) as a positive electrode active material, a negative electrode that includes a negative electrode active material, a composite electrolyte layer that includes at least one of a solid electrolyte and an inorganic compound containing alumina, and a separator. The composite electrolyte layer and the separator are arranged between the positive electrode and the negative electrode. A density of the composite electrolyte layer is in the range of 1.0 g/cc and 2.2 g/cc.Type: GrantFiled: February 28, 2020Date of Patent: March 14, 2023Assignee: KABUSHIKI KAISHA TOSHIBAInventors: Arisa Yamada, Yasunobu Yamashita, Shinsuke Matsuno
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Publication number: 20220344655Abstract: According to one embodiment, a method of producing a secondary battery is provided. The method includes preparing a battery architecture including a positive electrode, a negative electrode, and an electrolyte; adjusting a positive electrode potential to a range of 3.4 V to 3.9 V and a negative electrode potential to a range of 1.5 V to 2.0 V based on an oxidation-reduction potential of lithium, thereby providing a potential adjusted state; and holding the battery architecture in the potential adjusted state at a holding temperature of 50° C. to 90° C. The positive electrode includes a lithium-nickel-cobalt-manganese composite oxide. The negative electrode includes a niobium-titanium composite oxide. The electrolyte includes one or more first organic solvent having a viscosity of 1 cP or less.Type: ApplicationFiled: February 10, 2022Publication date: October 27, 2022Applicant: KABUSHIKI KAISHA TOSHIBAInventors: Arisa YAMADA, Tomoe KUSAMA, Tomoko SUGIZAKI, Yuta KANAI, Hirofumi YASUMIISHI, Tetsuya SASAKAWA, Yasuhiro HARADA
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Publication number: 20210091370Abstract: According to one embodiment, an electrode group is provided. The electrode group includes a positive electrode that includes a lithium composite oxide LiMxMn2-xO4 (0<x?0.5, M is at least one selected from a group consisting of Ni, Cr, Fe, Cu, Co, Mg, and Mo) as a positive electrode active material, a negative electrode that includes a negative electrode active material, a composite electrolyte layer that includes at least one of a solid electrolyte and an inorganic compound containing alumina, and a separator. The composite electrolyte layer and the separator are arranged between the positive electrode and the negative electrode. A density of the composite electrolyte layer is in the range of 1.0 g/cc and 2.2 g/cc.Type: ApplicationFiled: February 28, 2020Publication date: March 25, 2021Applicant: KABUSHIKI KAISHA TOSHIBAInventors: Arisa YAMADA, Yasunobu YAMASHITA, Shinsuke MATSUNO
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Patent number: 10612146Abstract: An electrochemical reaction device, includes: an electrolytic solution tank including a first storage part to store a first electrolytic solution containing carbon dioxide, and a second storage part to store a second electrolytic solution containing Water: a reduction electrode disposed in the first storing part; an oxidation electrode disposed in the second storing part; a porous both disposed in the first storing part; and a flow path connecting the porous body and an outside of the electrolytic solution tank to supply gas containing carbon dioxide to the porous body.Type: GrantFiled: October 24, 2018Date of Patent: April 7, 2020Assignee: Kabushiki Kaisha ToshibaInventors: Akihiko Ono, Satoshi Mikoshiba, Ryota Kitagawa, Jun Tamura, Yoshitsune Sugano, Arisa Yamada, Yuki Kudo
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Patent number: 10550488Abstract: The present embodiments provide: a reduction catalyst having high reaction efficiency, a reduction reactor including the same and a reduction method using the same. This catalyst includes a conductor and an organic layer comprises organic modifying groups capable of binding to the surface of the conductor, wherein the organic modifying groups contain a nitrogen-containing heterocycle.Type: GrantFiled: February 28, 2017Date of Patent: February 4, 2020Assignee: KABUSHIKI KAISHA TOSHIBAInventors: Arisa Yamada, Satoshi Mikoshiba, Akihiko Ono, Yuki Kudo, Jun Tamura, Ryota Kitagawa, Eishi Tsutsumi, Masakazu Yamagiwa, Yoshitsune Sugano, Asahi Motoshige, Tomohito Ide
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Patent number: 10458024Abstract: An electrochemical reaction device in an embodiment includes: a reaction vessel including a first accommodating part to accommodate a first electrolytic solution containing carbon dioxide, and a second accommodating part to accommodate a second electrolytic solution containing water; a reduction electrode disposed in the first accommodating part; an oxidation electrode disposed in the second accommodating part; a power supply electrode connected to the reduction electrode and the oxidation electrode; and a third accommodating part to mix a first gas component produced in the first accommodating part with the first electrolytic solution after the first gas component is produced.Type: GrantFiled: September 13, 2017Date of Patent: October 29, 2019Assignee: KABUSHIKI KAISHA TOSHIBAInventors: Ryoto Kitagawa, Satoshi Mikoshiba, Akihiko Ono, Yuki Kudo, Jun Tamura, Eishi Tsutsumi, Yoshitsune Sugano, Asahi Motoshige, Masakazu Yamagiwa, Arisa Yamada
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Patent number: 10344388Abstract: According to one embodiment of a CO2 reduction catalyst of the present invention, a conductive material is immersed in an aqueous solution containing a gold source, and a current or a potential is applied, whereby a highly active CO2 reduction catalyst can be formed in a wide range portion on a surface of the conductive material. According to one embodiment of a CO2 reduction catalyst of the present invention, in a CO2 reduction reaction apparatus including a CO2 reduction electrode having the CO2 reduction catalyst, CO2 is reduced.Type: GrantFiled: September 12, 2016Date of Patent: July 9, 2019Assignee: KABUSHIKI KAISHA TOSHIBAInventors: Yoshitsune Sugano, Ryota Kitagawa, Akihiko Ono, Jun Tamura, Yuki Kudo, Masakazu Yamagiwa, Eishi Tsutsumi, Satoshi Mikoshiba, Asahi Motoshige, Arisa Yamada
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Publication number: 20190062935Abstract: An electrochemical reaction device, includes: an electrolytic solution tank including a first storage part to store a first electrolytic solution containing carbon dioxide, and a second storage part to store a second electrolytic solution containing Water: a reduction electrode disposed in the first storing part; an oxidation electrode disposed in the second storing part; a porous both disposed in the first storing part; and a flow path connecting the porous body and an outside of the electrolytic solution tank to supply gas containing carbon dioxide to the porous body.Type: ApplicationFiled: October 24, 2018Publication date: February 28, 2019Applicant: Kabushiki Kaisha ToshibaInventors: Akihiko ONO, Satoshi MIKOSHIBA, Ryota KITAGAWA, Jun TAMURA, Yoshitsune SUGANO, Arisa YAMADA, Yuki KUDO
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Publication number: 20180119294Abstract: An electrochemical reaction device in an embodiment includes: a reaction vessel including a first accommodating part to accommodate a first electrolytic solution containing carbon dioxide, and a second accommodating part to accommodate a second electrolytic solution containing water; a reduction electrode disposed in the first accommodating part; an oxidation electrode disposed in the second accommodating part; a power supply electrode connected to the reduction electrode and the oxidation electrode; and a third accommodating part to mix a first gas component produced in the first accommodating part with the first electrolytic solution after the first gas component is produced.Type: ApplicationFiled: September 13, 2017Publication date: May 3, 2018Applicant: KABUSHIKI KAISHA TOSHIBAInventors: Ryota Kitagawa, Satoshi Mikoshiba, Akihiko Ono, Yuki Kudo, Jun Tamura, Eishi Tsutsumi, Yoshitsune Sugano, Asahi Motoshige, Masakazu Yamagiwa, Arisa Yamada
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Publication number: 20180073154Abstract: The present embodiments provide: a reduction catalyst having high reaction efficiency, a reduction reactor including the same and a reduction method using the same. This catalyst includes a conductor and an organic layer comprises organic modifying groups capable of binding to the surface of the conductor, wherein the organic modifying groups contain a nitrogen-containing heterocycle.Type: ApplicationFiled: February 28, 2017Publication date: March 15, 2018Applicant: KABUSHIKI KAISHA TOSHIBAInventors: Arisa YAMADA, Satoshi MIKOSHIBA, Akihiko ONO, Yuki KUDO, Jun TAMURA, Ryota KITAGAWA, Eishi TSUTSUMI, Masakazu YAMAGIWA, Yoshitsune SUGANO, Asahi MOTOSHIGE, Tomohito IDE
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Publication number: 20180073153Abstract: The present embodiments provide: a catalyst having excellent optical transparency, catalytic activity and durability; and a method of producing the same. This catalyst comprises a graphene oxide layer and a nickel-iron layered double hydroxide layer supported on the surface of the graphene oxide layer. The graphene oxide layer has an average thickness of 0.33 to 4 nm. The catalyst can be produced by arranging graphene oxide on a substrate by a coating method and then allowing NiFe-LDH to be supported thereon.Type: ApplicationFiled: March 3, 2017Publication date: March 15, 2018Applicant: KABUSHIKI KAISHA TOSHIBAInventors: Arisa YAMADA, Satoshi MIKOSHIBA, Akihiko ONO, Yuki KUDO, Jun TAMURA, Ryota KITAGAWA, Eishi TSUTSUMI, Masakazu YAMAGIWA, Yoshitsune SUGANO, Asahi MOTOSHIGE
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Publication number: 20180066370Abstract: The present embodiments provide a CO2 reduction catalyst which is used for a reduction reaction of carbon dioxide and shows a high efficiency in water, and a CO2 reduction electrode and a CO2 reduction device, which contain the CO2 reduction catalyst. This catalyst contains a conductive material and a porphyrin complex which has a specific structure and is insoluble in water. The porphyrin complex is insoluble in water because it contains only a small number of hydrophilic groups in its structure. The CO2 reduction electrode and the CO2 reduction device contain this catalyst.Type: ApplicationFiled: March 8, 2017Publication date: March 8, 2018Applicant: KABUSHIKI KAISHA TOSHIBAInventors: Arisa YAMADA, Satoshi MIKOSHIBA, Akihiko ONO, Yuki KUDO, Jun TAMURA, Yoshitsune SUGANO, Asahi MOTOSHIGE
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Publication number: 20170268118Abstract: An electrochemical reaction device, includes: an electrolytic solution tank including a first storage part to store a first electrolytic solution containing carbon dioxide, and a second storage part to store a second electrolytic solution containing water; a reduction electrode disposed in the first storing part; an oxidation electrode disposed in the second storing part; a porous body disposed in the first storing part; and a flow path connecting the porous body and an outside of the electrolytic solution tank to supply gas containing carbon dioxide to the porous body.Type: ApplicationFiled: September 8, 2016Publication date: September 21, 2017Applicant: Kabushiki Kaisha ToshibaInventors: Akihiko ONO, Satoshi MIKOSHIBA, Ryota KITAGAWA, Jun TAMURA, Yoshitsune SUGANO, Arisa YAMADA, Yuki KUDO
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Publication number: 20170247802Abstract: An electrochemical reaction device includes: an electrolytic solution tank including a first storage part to store a first electrolytic solution, and a second storage part to store a second electrolytic solution; a reduction electrode disposed in the first storage part and having a first surface; an oxidation electrode disposed in the second storage part and having a second surface; and a generator connected to the reduction and oxidation electrodes. A region in the first storage part between the first surface and an inner wall of the first storage part is an electrolytic solution flow path. The electrolytic solution flow path has a maximum part and a minimum part.Type: ApplicationFiled: September 8, 2016Publication date: August 31, 2017Applicant: Kabushiki Kaisha ToshibaInventors: Eishi Tsutsumi, Ryota Kitagawa, Akihiko Ono, Yuki Kudo, Jun Tamura, Yoshitsune Sugano, Masakazu Yamagiwa, Arisa Yamada, Asahi Motoshige, Satoshi Mikoshiba
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Publication number: 20170247804Abstract: A electrochemical reaction device of an embodiment includes: an electrolytic tank storing an electrolytic solution containing water; a fine bubble supply part which supplies fine bubbles containing carbon dioxide into the electrolytic solution; a reduction electrode which is immersed in the electrolytic solution and reduces the carbon dioxide to generate a carbon compound; an oxidation electrode which is immersed in the electrolytic solution and oxidizes the water to generate oxygen; and a photoelectric conversion body electrically connected to the reduction electrode and the oxidation electrode. The fine bubbles have a floating velocity of 10 mm/s or less in the electrolytic solution under an atmospheric pressure and 20° C. condition.Type: ApplicationFiled: September 13, 2016Publication date: August 31, 2017Applicant: Kabushiki Kaisha ToshibaInventors: Arisa YAMADA, Satoshi Mikoshiba, Akihiko Ono, Yuki Kudo, Jun Tamura, Ryota Kitagawa, Eishi Tsutsumi, Masakazu Yamagiwa, Yoshitsune Sugano, Asahi Motoshige
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Publication number: 20170073825Abstract: According to one embodiment of a CO2 reduction catalyst of the present invention, a conductive material is immersed in an aqueous solution containing a gold source, and a current or a potential is applied, whereby a highly active CO2 reduction catalyst can be formed in a wide range portion on a surface of the conductive material. According to one embodiment of a CO2 reduction catalyst of the present invention, in a CO2 reduction reaction apparatus including a CO2 reduction electrode having the CO2 reduction catalyst, CO2 is reduced.Type: ApplicationFiled: September 12, 2016Publication date: March 16, 2017Applicant: Kabushiki Kaisha ToshibaInventors: Yoshitsune SUGANO, Ryota KITAGAWA, Akihiko ONO, Jun TAMURA, Yuki KUDO, Masakazu YAMAGIWA, Eishi TSUTSUMI, Satoshi MIKOSHIBA, Asahi MOTOSHIGE, Arisa YAMADA
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Patent number: 9149786Abstract: An iodine adsorbent of an embodiment includes: a carrier modified with a functional group represented by a formula (1); and a silver ion supported on the carrier, where R1 is a polyol group.Type: GrantFiled: November 14, 2012Date of Patent: October 6, 2015Assignee: Kabushiki Kaisha ToshibaInventors: Arisa Yamada, Yumiko Sekiguchi, Hideyuki Tsuji
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Publication number: 20150266752Abstract: An iodine adsorbent includes a carrier that is a compound containing silicon, an organic group bonded to the carrier, and silver. The organic group has, at the terminal, a functional group represented by S? or SR. The silver is bonded to sulfur in S? or SR. The R is a hydrogen atom or a substituent containing a hydrocarbon. Where the element ratio of sulfur in the adsorbent to silicon in the adsorbent is MS/MSi, MS/(MSi·A), a value obtained by dividing the element ratio by a specific surface area A (m2/g) of the carrier, is 2.4×10?4 g/m2?MS/(MSi·A)?2.7×10?4 g/m2.Type: ApplicationFiled: February 26, 2015Publication date: September 24, 2015Inventors: YUMIKO SEKIGUCHI, TOMOHITO IDE, ARISA YAMADA, TOSHIHIRO IMADA
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Publication number: 20150239750Abstract: An iodine adsorbent of an embodiment includes a support, an organic group bonded to the support, silver, and chloride ions, bromide ions, or both of chloride ions and bromide ions. The organic group has, at the terminal, a functional group represented by S? or SR. The silver is bonded to S? or sulfur in SR. The R is a hydrogen atom or a substituent containing a hydrocarbon.Type: ApplicationFiled: February 25, 2015Publication date: August 27, 2015Inventors: Tomohito IDE, Yumiko Sekiguchi, Arisa Yamada, Toshihiro Imada
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Publication number: 20150239754Abstract: A treatment system of the embodiment includes an osmotic pressure treatment unit having: a first tank which holds a treatment target solution, a second tank which holds a draw solution containing an osmotic pressure inducer and a solvent, and a semipermeable membrane which is interposed between the first tank and the second tank. The osmotic pressure inducer is prepared by chemically modifying a support with a polymer having an upper critical solution temperature or a lower critical solution temperature.Type: ApplicationFiled: February 25, 2015Publication date: August 27, 2015Inventors: Arisa YAMADA, Kenji SANO, Toshihiro IMADA