Patents by Inventor Nagahisa SATO
Nagahisa SATO 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: 20220305445Abstract: A to-be-treated liquid containing oil that is obtained from oil-containing discharged water is treated with an oil-resistant separation membrane to remove the oil.Type: ApplicationFiled: July 20, 2021Publication date: September 29, 2022Inventor: Nagahisa SATO
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Patent number: 11077419Abstract: Described is an adsorbent, a vacuum heat insulating material having the same and a refrigerator, which are capable of adsorbing a target material in a reduced pressure environment. A refrigerator includes an outer casing forming an exterior, an inner casing provided inside the outer casing and forming a storage chamber and a vacuum heat insulating material positioned between the outer casing and the inner casing, and including an adsorbent that adsorbs a heat transfer medium. The adsorbent includes a first adsorption component provided to adsorb oxygen, and including a transition metal oxide having an oxygen deficiency structure, and a second adsorption component provided to adsorb moisture.Type: GrantFiled: December 22, 2015Date of Patent: August 3, 2021Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Nagahisa Sato, Ryo Iwamuro, Tomokazu Fukuzaki, Kenichi Nagayama, Ryosuke Kamitani, Kenji Takeuchi
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Publication number: 20210197137Abstract: The present invention relates to a composite semipermeable membrane including: a porous layer; a membrane separation layer provided on the porous layer; and the porous layer contains a crystalline polymer, wherein a crystallinity of the crystalline polymer is 30% or more and 50% or less.Type: ApplicationFiled: December 22, 2020Publication date: July 1, 2021Inventors: Nagahisa SATO, Masashi ECHIZEN
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Publication number: 20210197138Abstract: The present invention relates to a composite semipermeable membrane including: a porous layer; a membrane separation layer provided on the porous layer; and the porous layer contains a polymer, the polymer containing one of either a fluoropolymer or an imide group-containing polymer, wherein a compression ratio of a portion including the porous layer and the membrane separation layer when subjected to a pressure of 5.5 MPa is 60% or less.Type: ApplicationFiled: December 22, 2020Publication date: July 1, 2021Inventors: Nagahisa SATO, Masashi ECHIZEN, Yasuyuki SAKAKIBARA
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Patent number: 10875009Abstract: Example embodiments relate to a gas-adsorbing material capable of reducing the generation amount of combustible gas without deteriorating gas-adsorbing performance, and a vacuum insulation material including the gas-adsorbing material. The gas-adsorbing material may include a metal selected from at least one of Li, V, Zr, or an alloy including the same, which adsorbs a nitrogen gas and is inactivated by moisture as a nitrogen adsorbing agent, and an additive added to the metal. The metal is attached on the particle surface of the additive. The metal may be an alloy including Li and an alkaline-earth metal, for example, Ba—Li alloy. The additive absorbs moisture, and is selected from at least one of an inorganic oxide, a transition metal, an oxide of a transition metal, an alloy including a transition metal, and a mixture including a transition metal.Type: GrantFiled: August 6, 2019Date of Patent: December 29, 2020Assignee: Samsung Electronics Co., Ltd.Inventors: Nagahisa Sato, Ryosuke Kamitani, Kenichi Nagayama, Tomokazu Fukuzaki
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Publication number: 20190366301Abstract: Example embodiments relate to a gas-adsorbing material capable of reducing the generation amount of combustible gas without deteriorating gas-adsorbing performance, and a vacuum insulation material including the gas-adsorbing material. The gas-adsorbing material may include a metal selected from at least one of Li, V, Zr, or an alloy including the same, which adsorbs a nitrogen gas and is inactivated by moisture as a nitrogen adsorbing agent, and an additive added to the metal. The metal is attached on the particle surface of the additive. The metal may be an alloy including Li and an alkaline-earth metal, for example, Ba—Li alloy. The additive absorbs moisture, and is selected from at least one of an inorganic oxide, a transition metal, an oxide of a transition metal, an alloy including a transition metal, and a mixture including a transition metal.Type: ApplicationFiled: August 6, 2019Publication date: December 5, 2019Applicant: Samsung Electronics Co., Ltd.Inventors: Nagahisa SATO, Ryosuke Kamitani, Kenichi Nagayama, Tomokazu Fukuzaki
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Patent number: 10421059Abstract: Example embodiments relate to a gas-adsorbing material capable of reducing the generation amount of combustible gas without deteriorating gas-adsorbing performance, and a vacuum insulation material including the gas-adsorbing material. The gas-adsorbing material may include a metal selected from at least one of Li, V, Zr, or an alloy including the same, which adsorbs a nitrogen gas and is inactivated by moisture as a nitrogen adsorbing agent, and an additive added to the metal. The metal is attached on the particle surface of the additive. The metal may be an alloy including Li and an alkaline-earth metal, for example, Ba—Li alloy. The additive absorbs moisture, and is selected from at least one of an inorganic oxide, a transition metal, an oxide of a transition metal, an alloy including a transition metal, and a mixture including a transition metal.Type: GrantFiled: October 22, 2015Date of Patent: September 24, 2019Assignee: Samsung Electronics Co., Ltd.Inventors: Nagahisa Sato, Ryosuke Kamitani, Kenichi Nagayama, Tomokazu Fukuzaki
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Patent number: 9901900Abstract: A gas-adsorbing material may increase gas barrier properties for a target gas by reducing a gas-adsorption rate while maintaining gas-adsorption performance. A vacuum insulation material may use the gas-adsorbing material. The gas-adsorbing material may include a gas-adsorbing composition including a copper ion exchanged ZSM-5-type zeolite having a silica to alumina ratio ranging from about 10 to 50 in a framework of zeolite. A ratio of dealuminization of the ZSM-5-type zeolite is at least about 15%, and the gas-adsorbing material is capable of adsorbing at least nitrogen. Furthermore, the gas-adsorbing material may include a calcinated body of a compressed article comprising a gas-adsorbing composition including a copper ion exchanged ZSM-5-type zeolite having a silica to alumina ratio ranging from about 10 to 50 in a framework of zeolite (where a ratio of dealuminization of the ZSM-5-type zeolite is at least about 15%) and a moisture-absorbing material.Type: GrantFiled: November 12, 2015Date of Patent: February 27, 2018Assignee: Samsung Electronics Co., Ltd.Inventors: Nagahisa Sato, Ryosuke Kamitani, Kenichi Nagayama
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Publication number: 20170368530Abstract: Described is an adsorbent, a vacuum heat insulating material having the same and a refrigerator, which are capable of adsorbing a target material in a reduced pressure environment. A refrigerator includes an outer casing forming an exterior, an inner casing provided inside the outer casing and forming a storage chamber and a vacuum heat insulating material positioned between the outer casing and the inner casing, and including an adsorbent that adsorbs a heat transfer medium. The adsorbent includes a first adsorption component provided to adsorb oxygen, and including a transition metal oxide having an oxygen deficiency structure, and a second adsorption component provided to adsorb moisture.Type: ApplicationFiled: December 22, 2015Publication date: December 28, 2017Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventors: Nagahisa SATO, Ryo IWAMURO, Tomokazu FUKUZAKI, Kenichi NAGAYAMA, Ryosuke KAMITANI, Kenji TAKEUCHI
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Publication number: 20160136612Abstract: A gas-adsorbing material may increase gas barrier properties for a target gas by reducing a gas-adsorption rate while maintaining gas-adsorption performance. A vacuum insulation material may use the gas-adsorbing material. The gas-adsorbing material may include a gas-adsorbing composition including a copper ion exchanged ZSM-5-type zeolite having a silica to alumina ratio ranging from about 10 to 50 in a framework of zeolite. A ratio of dealuminization of the ZSM-5-type zeolite is at least about 15%, and the gas-adsorbing material is capable of adsorbing at least nitrogen. Furthermore, the gas-adsorbing material may include a calcinated body of a compressed article comprising a gas-adsorbing composition including a copper ion exchanged ZSM-5-type zeolite having a silica to alumina ratio ranging from about 10 to 50 in a framework of zeolite (where a ratio of dealuminization of the ZSM-5-type zeolite is at least about 15%) and a moisture-absorbing material.Type: ApplicationFiled: November 12, 2015Publication date: May 19, 2016Inventors: Nagahisa SATO, Ryosuke KAMITANI, Kenichi NAGAYAMA
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Publication number: 20160114310Abstract: Example embodiments relate to a gas-adsorbing material capable of reducing the generation amount of combustible gas without deteriorating gas-adsorbing performance, and a vacuum insulation material including the gas-adsorbing material. The gas-adsorbing material may include a metal selected from at least one of Li, V, Zr, or an alloy including the same, which adsorbs a nitrogen gas and is inactivated by moisture as a nitrogen adsorbing agent, and an additive added to the metal. The metal is attached on the particle surface of the additive. The metal may be an alloy including Li and an alkaline-earth metal, for example, Ba—Li alloy. The additive absorbs moisture, and is selected from at least one of an inorganic oxide, a transition metal, an oxide of a transition metal, an alloy including a transition metal, and a mixture including a transition metal.Type: ApplicationFiled: October 22, 2015Publication date: April 28, 2016Inventors: Nagahisa SATO, Ryosuke KAMITANI, Kenichi NAGAYAMA, Tomokazu FUKUZAKI
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Publication number: 20140158622Abstract: The present disclosure relates to a water recovery method and an FO draw solution that reduce the energy consumption required for water recovery, increase the osmotic pressure of a draw solution, recover the water from a DS mixed solution relatively easily, and reduce a solute that remains in the water, and simultaneously reduce fouling of the FO membrane. The water recovery method may include inflowing water into a draw solution by partitioning a feed solution including water and a draw solution, including a basic temperature-sensitive polymer and an acidic gas dissolved therein and having higher osmotic pressure than the feed solution, with a forward osmosis membrane.Type: ApplicationFiled: December 9, 2013Publication date: June 12, 2014Applicant: Samsung Electronics Co., Ltd.Inventors: Satoshi YANASE, Kenji KONO, Nagahisa SATO