Patents by Inventor Katsuya Ueno
Katsuya Ueno 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: 20240145646Abstract: The light emitting device has a substrate, a light emitting element arranged on the top surface of the substrate, a frame body arranged on the top surface of the substrate so as to surround the light emitting element and reflecting light from the light emitting body, and a sealing material arranged inside the frame body and sealing the light emitting element, and the frame body has a first frame portion having a first inner circumferential curved surface protruding to the side of the light emitting element and a second frame portion having a second inner circumferential curved surface, and a connection portion of the first frame portion and the second frame portion is arranged so as to have the same height as that of the top surface of the light emitting element.Type: ApplicationFiled: January 4, 2024Publication date: May 2, 2024Inventors: Kiyokazu WATANABE, Yoshihito KITTA, Yuichiro ANDO, Katsuya AOSHIMA, Ryo MATSUURA, Kohki UENO
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Patent number: 11827831Abstract: To provide a fluid composition and a refrigerant composition having flammability suppressed; and an air conditioner in which restrictions in order to inhibit combustion of the refrigerant composition are reduced and it is thereby possible to omit or simplify measures for inhibiting combustion of the refrigerant composition. The fluid composition is either a composition (I) comprising at least one component (A) selected from the group consisting of alkanes, halogenated alkanes and alkenes and at least one component (B) selected from halogenated alkenes, or a composition (II) (excluding the composition (I)) comprising two or more ingredients (B) selected from halogenated alkenes. The fluid composition has a combustion inhibiting effect as defined by ?100×{(measured maximum burning velocity)?(estimated maximum burning velocity)}/(estimated maximum burning velocity), of at least 10%.Type: GrantFiled: November 14, 2019Date of Patent: November 28, 2023Assignees: AGC Inc., NATIONAL INSTITUTE OF ADVANCED INDUSTRIAL SCIENCE AND TECHNOLOGYInventors: Hidekazu Okamoto, Hiroki Hayamizu, Katsuya Ueno, Hirokazu Takagi, Masato Fukushima, Kenji Takizawa
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Patent number: 11686506Abstract: An object of the present invention is to provide, as a working fluid to be used for a heat cycle system, a working fluid for heat cycle that has cycle performance replaceable with that of R410A, and at the same time, has a small burden on an apparatus, low flammability, suppressed self-decomposition, and less effect on global warming, and therefore, is usable stably even if leaked, a composition for heat cycle system containing the same, and a heat cycle system using the composition. The working fluid for heat cycle contains trifluoroethylene, difluoromethane, and at least one selected from 1,1-difluoroethane, fluoroethane, propane, propylene, carbon dioxide, 2,3,3,3-tetrafluoropropene, and (E)-1,3,3,3-tetrafluoropropene at mass ratios satisfying predetermined expressions and at a ratio of the total content to be 90 to 100 mass % relative to the total amount of the working fluid and has a temperature glide of 10° C. or less.Type: GrantFiled: April 26, 2021Date of Patent: June 27, 2023Assignee: AGC Inc.Inventors: Hikaru Ono, Katsuya Ueno, Tetsuo Otsuka
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Publication number: 20220177761Abstract: A working fluid for a heat cycle, contains: trifluoroethylene; and a first component consisting of at least one of substance selected from carbon dioxide, fluoromethane, trifluoroiodomethane, methane, ethane, propane, helium, neon, argon, krypton, xenon, nitrogen and ammonia.Type: ApplicationFiled: February 28, 2022Publication date: June 9, 2022Applicant: AGC Inc.Inventors: Katsuya UENO, Hikaru ONO, Toshiyuki TANAKA, Hidekazu OKAMOTO, Hiroki HAYAMIZU, Masato FUKUSHIMA, Mai TASAKA
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Publication number: 20210262700Abstract: An object of the present invention is to provide, as a working fluid to be used for a heat cycle system, a working fluid for heat cycle that has cycle performance replaceable with that of R410A, and at the same time, has a small burden on an apparatus, low flammability, suppressed self-decomposition, and less effect on global warming, and therefore, is usable stably even if leaked, a composition for heat cycle system containing the same, and a heat cycle system using the composition. The working fluid for heat cycle contains trifluoroethylene, difluoromethane, and at least one selected from 1,1-difluoroethane, fluoroethane, propane, propylene, carbon dioxide, 2,3,3,3-tetrafluoropropene, and (E)-1,3,3,3-tetrafluoropropene at mass ratios satisfying predetermined expressions and at a ratio of the total content to be 90 to 100 mass % relative to the total amount of the working fluid and has a temperature glide of 10° C. or less.Type: ApplicationFiled: April 26, 2021Publication date: August 26, 2021Applicant: AGC Inc.Inventors: Hikaru ONO, Katsuya Ueno, Tetsuo Otsuka
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Patent number: 11015840Abstract: An object of the present invention is to provide, as a working fluid to be used for a heat cycle system, a working fluid for heat cycle that has cycle performance replaceable with that of R410A, and at the same time, has a small burden on an apparatus, low flammability, suppressed self-decomposition, and less effect on global warming, and therefore, is usable stably even if leaked, a composition for heat cycle system containing the same, and a heat cycle system using the composition. The working fluid for heat cycle contains trifluoroethylene, difluoromethane, and at least one selected from 1,1-difluoroethane, fluoroethane, propane, propylene, carbon dioxide, 2,3,3,3-tetrafluoropropene, and (E)-1,3,3,3-tetrafluoropropene at mass ratios satisfying predetermined expressions and at a ratio of the total content to be 90 to 100 mass % relative to the total amount of the working fluid and has a temperature glide of 10° C. or less.Type: GrantFiled: March 5, 2019Date of Patent: May 25, 2021Assignee: AGC Inc.Inventors: Hikaru Ono, Katsuya Ueno, Tetsuo Otsuka
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Patent number: 10830518Abstract: A heat cycle system with high durability, which employs a working fluid for heat cycle containing trifluoroethylene having a low global warming potential. A heat cycle system, having a circulation path in which a working fluid for heat cycle containing trifluoroethylene is circulated from a compressor via a condenser, an expansion valve and an evaporator to the compressor, wherein the compressor has in its electrical circuit a current-limiting apparatus capable of limiting the current within 6 milliseconds after the heat cycle system enters into an abnormal operation state.Type: GrantFiled: September 12, 2019Date of Patent: November 10, 2020Assignee: AGC Inc.Inventors: Katsuya Ueno, Hidekazu Okamoto, Shigeo Kajitani, Tetsuo Otsuka, Masamichi Ipponmatsu
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Patent number: 10787597Abstract: A working fluid for heat cycle, wherein the global warming potential is less than 300; the product of the relative coefficient of performance and the relative refrigerating capacity is at least 0.820 relative to R410A in a standard refrigerating cycle under conditions of an evaporation temperature of 0° C., a condensing temperature of 40° C., a supercoiling degree of 5° C. and a degree of superheat of 5° C.; the relative compressor discharge gas pressure is at most 1.100; the lower limit of the combustion range by method A in High Pressure Gas Safety Act is at least 5 vol %; and the pressure will not exceed 2.00 MPaG in a combustion test by method A in High Pressure Gas Safety act under 0.98 MPaG at 250° C.Type: GrantFiled: October 5, 2018Date of Patent: September 29, 2020Assignee: AGC Inc.Inventors: Masato Fukushima, Hiroaki Mitsuoka, Mai Tasaka, Satoshi Kawaguchi, Katsuya Ueno, Toshiyuki Tanaka, Hidekazu Okamoto, Tetsuo Otsuka, Yoshinobu Kadowaki, Tatsuhiro Nogami, Daisuke Shirakawa, Hirokazu Takagi, Takeaki Arai
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Publication number: 20200079985Abstract: To provide a fluid composition and a refrigerant composition having flammability suppressed; and an air conditioner in which restrictions in order to inhibit combustion of the refrigerant composition are reduced and it is thereby possible to omit or simplify measures for inhibiting combustion of the refrigerant composition. The fluid composition is either a composition (I) comprising at least one component (A) selected from the group consisting of alkanes, halogenated alkanes and alkenes and at least one component (B) selected from halogenated alkenes, or a composition (II) (excluding the composition (I)) comprising two or more ingredients (B) selected from halogenated alkenes. The fluid composition has a combustion inhibiting effect as defined by ?100×{(measured maximum burning velocity)?(estimated maximum burning velocity)}/(estimated maximum burning velocity), of at least 10%.Type: ApplicationFiled: November 14, 2019Publication date: March 12, 2020Applicants: AGC Inc., NATIONAL INSTITUTE OF ADVANCED INDUSTRIAL SCIENCE AND TECHNOLOGYInventors: Hidekazu OKAMOTO, Hiroki HAYAMIZU, Katsuya UENO, Hirokazu TAKAGI, Masato FUKUSHIMA, Kenji TAKIZAWA
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Publication number: 20200003469Abstract: To provide a heat cycle system with high durability, which employs a working fluid for heat cycle containing trifluoroethylene having a low global warming potential. A heat cycle system 10, comprising a circulation path in which a working fluid for heat cycle containing trifluoroethylene is circulated from a compressor 11 via a condenser 12, an expansion valve 13 and an evaporator 14 to the compressor 11, wherein the compressor has in its electrical circuit a current-limiting apparatus capable of limiting the current within 6 milliseconds after the heat cycle system enters into an abnormal operation state.Type: ApplicationFiled: September 12, 2019Publication date: January 2, 2020Applicant: AGC Inc.Inventors: Katsuya UENO, Hidekazu OKAMOTO, Shigeo KAJITANI, Tetsuo OTSUKA, Masamichi IPPONMATSU
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Publication number: 20190257553Abstract: An object of the present invention is to provide, as a working fluid to be used for a heat cycle system, a working fluid for heat cycle that has cycle performance replaceable with that of R410A, and at the same time, has a small burden on an apparatus, low flammability, suppressed self-decomposition, and less effect on global warming, and therefore, is usable stably even if leaked, a composition for heat cycle system containing the same, and a heat cycle system using the composition. The working fluid for heat cycle contains trifluoroethylene, difluoromethane, and at least one selected from 1,1-difluoroethane, fluoroethane, propane, propylene, carbon dioxide, 2,3,3,3-tetrafluoropropene, and (E)-1,3,3,3-tetrafluoropropene at mass ratios satisfying predetermined expressions and at a ratio of the total content to be 90 to 100 mass % relative to the total amount of the working fluid and has a temperature glide of 10° C. or less.Type: ApplicationFiled: March 5, 2019Publication date: August 22, 2019Applicant: AGC Inc.Inventors: Hikaru ONO, Katsuya Ueno, Tetsuo Otsuka
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Patent number: 10377934Abstract: There are provided an air-conditioner working fluid for electric vehicle providing sufficient cycle performance in practical use in an electric vehicle, in particular, sufficient cycle performance also in the heating time, while suppressing influence on global warming, and usable without greatly changing an air-conditioner device for a conventional working fluid, for example, HFC-134a or HFO-1234yf, and an air-conditioner working fluid composition for electric vehicle containing the same. The air-conditioner working fluid for electric vehicle contains trifluoroethylene, difluoromethane and 1,3,3,3-tetrafluoropropene, wherein a percentage of a total amount of trifluoroethylene, difluoromethane and 1,3,3,3-tetrafluoropropene with respect to a total amount of the working fluid is more than 90 mass % and 100 mass % or less.Type: GrantFiled: August 8, 2017Date of Patent: August 13, 2019Assignees: AGC Inc., DENSO CORPORATIONInventors: Masato Fukushima, Satoshi Kawaguchi, Katsuya Ueno, Shin Nishida
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Patent number: 10246604Abstract: To provide a method for producing an aqueous liquid containing a vinyl polymer, of which the production efficiency is high, without lowering the yield of the vinyl polymer. When removing a hydrophilic organic solvent from a mixed liquid comprising a vinyl polymer, the hydrophilic organic solvent and water to produce an aqueous liquid containing the vinyl polymer, a liquid phase and a gas phase are formed in a closed container, a part of the liquid of the liquid phase is formed into small droplets and brought into contact with the gas phase to vaporize the hydrophilic organic solvent, and the vaporized hydrophilic organic solvent is removed from the closed container.Type: GrantFiled: July 31, 2017Date of Patent: April 2, 2019Assignee: AGC Inc.Inventors: Shintaro Fukunaga, Katsuya Ueno, Akio Ogawa, Yutaka Ohyama, Teruhiko Yasuda
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Patent number: 10196552Abstract: To provide a composition for a heat cycle system having less influence over the ozone layer, having a low global warming potential and having excellent durability, and a heat cycle system. A composition for a heat cycle system comprising a working fluid containing trifluoroethylene and difluoromethane, and a lubricating oil, wherein the interaction distance (Ra1123) between trifluoroethylene and the lubricating oil as determined from the Hansen solubility parameters is shorter than the interaction distance (Ra32) between difluoromethane and the lubricating oil.Type: GrantFiled: July 29, 2016Date of Patent: February 5, 2019Assignee: AGC Inc.Inventors: Katsuya Fujii, Hiroshi Yamamoto, Katsuya Ueno, Hidekazu Okamoto, Masato Fukushima, Hiroaki Mitsuoka, Mai Tasaka
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Publication number: 20190031934Abstract: A working fluid for heat cycle, wherein the global warming potential is less than 300; the product of the relative coefficient of performance and the relative refrigerating capacity is at least 0.820 relative to R410A in a standard refrigerating cycle under conditions of an evaporation temperature of 0° C., a condensing temperature of 40° C., a supercoiling degree of 5° C. and a degree of superheat of 5° C.; the relative compressor discharge gas pressure is at most 1.100; the lower limit of the combustion range by method A in High Pressure Gas Safety Act is at least 5 vol %; and the pressure will not exceed 2.00 MPaG in a combustion test by method A in High Pressure Gas Safety act under 0.98 MPaG at 250° C.Type: ApplicationFiled: October 5, 2018Publication date: January 31, 2019Applicant: AGC Inc.Inventors: Masato FUKUSHIMA, Hiroaki MITSUOKA, Mai TASAKA, Satoshi KAWAGUCHI, Katsuya UENO, Toshiyuki TANAKA, Hidekazu OKAMOTO, Tetsuo OTSUKA, Yoshinobu KADOWAKI, Tatsuhiro NOGAMI, Daisuke SHIRAKAWA, Hirokazu TAKAGI, Takeaki ARAI
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Patent number: 10174971Abstract: To provide a heat cycle system with high durability, which employs a working fluid for heat cycle containing trifluoroethylene having a low global warming potential. A heat cycle system 10 which has a circulation path in which a working fluid for heat cycle containing trifluoroethylene is circulated from a compressor 11 via a condenser 12, an expansion valve 13 and an evaporator 14 to the compressor 11, wherein a conductor wire provided in the circulation path is covered with a heat resistant material having a heat resistance of at least 300° C.Type: GrantFiled: January 30, 2017Date of Patent: January 8, 2019Assignee: AGC Inc.Inventors: Katsuya Ueno, Hiroki Hayamizu, Hidekazu Okamoto, Masamichi Ippommatsu
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Patent number: 10144856Abstract: A working fluid for heat cycle contains trifluoroethylene and 2,3,3,3-tetrafluoropropene. The proportion of the total amount of trifluoroethylene and 2,3,3,3-tetrafluoropropene based on the entire amount of the working fluid is higher than 90 mass % and at most 100 mass %. The proportion of trifluoroethylene based on the total amount of trifluoroethylene and 2,3,3,3-tetrafluoropropene is at least 21 mass % and at most 39 mass %. The working fluid has a low global warming potential and suppressed self-decomposition property. A composition for a heat cycle system contains the working fluid and a heat cycle system employs the composition.Type: GrantFiled: August 31, 2016Date of Patent: December 4, 2018Assignee: AGC Inc.Inventors: Masato Fukushima, Satoshi Kawaguchi, Katsuya Ueno, Toshiyuki Tanaka, Hidekazu Okamoto, Tetsuo Otsuka, Yoshinobu Kadowaki, Tatsuhiro Nogami
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Patent number: 10131827Abstract: To provide a working fluid which has cycle performance sufficient as an alternative to R410A while the influence over global warming is sufficiently suppressed, which does not significantly increase the load to an apparatus as compared with a case where R410A is used, and which can be stably used continuously without any special measures, a composition for a heat cycle system contains the working fluid, and a heat cycle system employs the composition. A working fluid for heat cycle, wherein the global warming potential is less than 300; the product of the relative coefficient of performance and the relative refrigerating capacity is at least 0.820 relative to R410A in a standard refrigerating cycle under conditions of an evaporation temperature of 0° C., a condensing temperature of 40° C., a supercoiling degree of 5° C. and a degree of superheat of 5° C.; the relative compressor discharge gas pressure is at most 1.Type: GrantFiled: July 27, 2016Date of Patent: November 20, 2018Assignee: AGC INC.Inventors: Masato Fukushima, Hiroaki Mitsuoka, Mai Tasaka, Satoshi Kawaguchi, Katsuya Ueno, Toshiyuki Tanaka, Hidekazu Okamoto, Tetsuo Otsuka, Yoshinobu Kadowaki, Tatsuhiro Nogami, Daisuke Shirakawa, Hirokazu Takagi, Takeaki Arai
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Patent number: 10131828Abstract: To provide a working fluid for heat cycle which has a small temperature glide, a sufficiently low discharge temperature, high durability and less influence over global warming, and with which a heat cycle system excellent in the system maintenance properties and the cycle performance (capacity) is achieved, a composition for a heat cycle system, and a heat cycle system. A working fluid for heat cycle, which contains trifluoroethylene and difluoromethane, wherein the proportion of the total amount of trifluoroethylene and difluoromethane based on the entire amount of the working fluid for heat cycle is higher than 90 mass % and at most 100 mass %, and the mass ratio represented by trifluoroethylene/difluoromethane in the working fluid for heat cycle is from 41/59 to 59/41, a composition for a heat cycle system, and a heat cycle system employing the composition.Type: GrantFiled: August 9, 2016Date of Patent: November 20, 2018Assignee: AGC Inc.Inventors: Hidekazu Okamoto, Masato Fukushima, Satoshi Kawaguchi, Yoshinobu Kadowaki, Tetsuo Otsuka, Katsuya Ueno, Kazuyoshi Kurashima
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Patent number: 9969917Abstract: To provide a method for stably and efficiently producing a working fluid which has less influence over global warming and which can be stably used by a usual operation even though it contains trifluoroethylene (HFO-1123) excellent in the cycle performance. A method for producing a working fluid containing HFO-1123 in a proportion of at most 70 mol %, which comprises mixing a first component containing HFO-1123 in a proportion of higher than 70 mol % stored in a first container, and a second component having no self-decomposition property stored in a second container, by supplying the first component to the second container, by supplying the second component to the first container, or by supplying both the first component and the second component to a separate third container, respectively under the predetermined conditions.Type: GrantFiled: July 27, 2016Date of Patent: May 15, 2018Assignee: ASAHI GLASS COMPANY, LIMITEDInventors: Masato Fukushima, Satoshi Kawaguchi, Mai Tasaka, Katsuya Ueno