Patents by Inventor Akira Tada
Akira Tada 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: 20240002714Abstract: A cooling liquid composition including: a hydrocarbon fluid having a mass-based average carbon number of 13 or more and 16 or less in which a total amount of a hydrocarbon having 13 or more and 15 or less carbon atoms is 50% by mass or more relative to an entire amount of the hydrocarbon fluid.Type: ApplicationFiled: August 31, 2021Publication date: January 4, 2024Applicant: ENEOS CORPORATIONInventors: Akira TADA, Yasushi ONUMATA, Noriko AYAME, Yohei SUSUKIDA
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Patent number: 11645089Abstract: A network system includes at least one transmission path and a plurality of terminal devices each connected to the transmission path. Each of the terminal devices includes a transceiver, a startup processing unit, and a switching unit. The transceiver is configured to operate either one of a first standby unit and a second standby unit according to a switching instruction. The switching unit is configured to output the switching instruction to the transceiver to operate the second standby unit when a transmission path empty period lasts for a predetermined preparation time or more after a non-designation period has lasted for a predetermined operation determination time or more.Type: GrantFiled: November 30, 2021Date of Patent: May 9, 2023Assignee: DENSO CORPORATIONInventors: Akira Tada, Tomohisa Kishigami
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Patent number: 11555159Abstract: A lubricating oil composition including: a lubricant base oil; (A) a triazole metal deactivator in an amount of 0.005 to 0.03 mass % in terms of nitrogen on the basis of the total mass of the composition; and (B1) a succinimide compound represented by the following general formula (1) in an amount of 0.0005 to 0.02 mass % in terms of nitrogen on the basis of the total mass of the composition: wherein in the general formula (1), R1 and R2 each independently represent a hydrogen atom or a C1-36 linear or branched chain alkyl or alkenyl group, and at least one of R1 and R2 is a C8-36 linear or branched chain alkyl or alkenyl group, and n represents an integer of 1 to 10.Type: GrantFiled: November 6, 2019Date of Patent: January 17, 2023Assignee: ENEOS CORPORATIONInventors: Yohei Susukida, Yasushi Onumata, Akira Tada, Noriko Ayame
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Patent number: 11505760Abstract: The present invention provides a refrigerating machine oil comprising a hydrocarbon-based base oil having a viscosity index of 120 or less, and the refrigerating machine oil being used with a 1-chloro-2,3,3,3-tetrafluoropropene refrigerant.Type: GrantFiled: February 15, 2017Date of Patent: November 22, 2022Assignee: ENEOS CORPORATIONInventors: Yohei Shono, Akira Tada, Yuya Mizutani, Takeshi Okido, Hidetoshi Ogata, Tatsuki Nakajima
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Publication number: 20220179663Abstract: A network system includes at least one transmission path and a plurality of terminal devices each connected to the transmission path. Each of the terminal devices includes a transceiver, a startup processing unit, and a switching unit. The transceiver is configured to operate either one of a first standby unit and a second standby unit according to a switching instruction. The switching unit is configured to output the switching instruction to the transceiver to operate the second standby unit when a transmission path empty period lasts for a predetermined preparation time or more after a non-designation period has lasted for a predetermined operation determination time or more.Type: ApplicationFiled: November 30, 2021Publication date: June 9, 2022Inventors: Akira TADA, Tomohisa KISHIGAMI
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Publication number: 20220002631Abstract: A lubricating oil composition including: a lubricant base oil; (A) a triazole metal deactivator in an amount of 0.005 to 0.03 mass % in terms of nitrogen on the basis of the total mass of the composition; and (B1) a succinimide compound represented by the following general formula (1) in an amount of 0.0005 to 0.02 mass % in terms of nitrogen on the basis of the total mass of the composition: wherein in the general formula (1), R1 and R2 each independently represent a hydrogen atom or a C1-36 linear or branched chain alkyl or alkenyl group, and at least one of R1 and R2 is a C8-36 linear or branched chain alkyl or alkenyl group, and n represents an integer of 1 to 10.Type: ApplicationFiled: November 6, 2019Publication date: January 6, 2022Applicant: ENEOS CorporationInventors: Yohei SUSUKIDA, Yasushi ONUMATA, Akira TADA, Noriko AYAME
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Patent number: 11208608Abstract: In an aspect, the present invention provides a refrigerating machine oil comprising a poly(meth)acrylate as a base oil, wherein the poly(meth)acrylate comprises a hydrogenated poly(meth)acrylate, a content of a unit having a carbon-carbon double bond present at a terminal in the poly(meth)acrylate is 6% by mole or less relative to total units constituting the poly(meth)acrylate, and a kinematic viscosity at 40° C. of the hydrogenated poly(meth)acrylate is 1 to 1000 mm2/s, the refrigerating machine oil being used with a refrigerant comprising a refrigerant selected from difluoromethane, a mixture of difluoromethane and pentafluoroethane, a mixture of difluoromethane, pentafluoroethane, and 1, 1, 1, 2-tetrafluoroethane, a mixture of pentafluoroethane, 1, 1, 1, 2-tetrafluoroethane, and 1, 1, 1-trifluoroethane, an unsaturated hydrofluorocarbon, a hydrocarbon, and carbon dioxide.Type: GrantFiled: October 20, 2017Date of Patent: December 28, 2021Assignee: ENEOS CORPORATIONInventors: Kentaro Yamaguchi, Akira Tada, Tatsuki Nakajima, Takeshi Okido, Hidetoshi Ogata
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Publication number: 20210395634Abstract: A lubricating oil composition including: a lubricant base oil; (A) a calcium salicylate detergent in an amount of 0.005 to 0.03 mass % in terms of calcium on the basis of the total mass of the composition; (B) a succinimide ashless dispersant in an amount of 0.005 to 0.25 mass % in terms of nitrogen on the basis of the total mass of the composition; (C) a nitrogen-containing antioxidant in an amount of 0.005 to 0.15 mass % in terms of nitrogen on the basis of the total mass of the composition; and optionally (D) a nitrogen-containing friction modifier in an amount of no more than 0.03 mass % in terms of nitrogen on the basis of the total mass of the composition, wherein a total content of any metallic detergent is 0.005 to 0.03 mass % in terms of metal on the basis of the total mass of the composition.Type: ApplicationFiled: November 6, 2019Publication date: December 23, 2021Applicant: ENEOS CorporationInventors: Yohei SUSUKIDA, Yasushi ONUMATA, Akira TADA, Noriko AYAME
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Publication number: 20210395635Abstract: A lubricating oil composition including: a lubricant base oil; (A) a calcium salicylate detergent in an amount of 0.005 to 0.03 mass % in terms of calcium on the basis of the total mass of the composition; and (B) a phosphite ester compound represented by the following general formula (1) in an amount of 0.01 to 0.06 mass % in terms of phosphorus on the basis of the total mass of the composition: wherein in the general formula (1), R1 and R2 are each independently a C5-20 group represented by the following general formula (2): wherein in the general formula (2), R3 is a C2-17 linear chain hydrocarbon group, and R4 is a C3-17 linear chain hydrocarbon group, and X1 is an oxygen atom or a sulfur atom.Type: ApplicationFiled: November 6, 2019Publication date: December 23, 2021Applicant: ENEOS CorporationInventors: Yohei SUSUKIDA, Yasushi ONUMATA, Akira TADA
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Publication number: 20210243046Abstract: A vehicle relay device includes a plurality of physical (PHY) modules and a PHY manager. The plurality of PHY modules are configured to communicate in accordance with an Ethernet standard. The PHY manager is connected to the plurality of PHY modules. The PHY manager changes an operation setting of each of the plurality of PHY modules and monitors an operation state of each of the plurality of PHY modules.Type: ApplicationFiled: April 20, 2021Publication date: August 5, 2021Inventor: Akira TADA
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Publication number: 20210216931Abstract: The time required to modify order allocation rules is shortened in a production planning system. A performance rule is generated, in which a manufacturing condition is set as the input and a manufacturing facility is set as the output, based on allocation performance data representing a performance of allocating the manufacturing facility for the manufacturing condition. A comparison table is generated representing a difference between the performance rule and an existing rule in which the manufacturing condition is set as the input and the manufacturing facility is set as the output. A modification rule is generated in which the existing rule is modified according to a user operation on the comparison table; and an evaluation index is calculated for production plan data corresponding to each of the existing rule and the modification rule. The rule modification unit generates the comparison table including a modification plan for the existing rule.Type: ApplicationFiled: November 6, 2020Publication date: July 15, 2021Inventors: Shintaro URABE, Yuuichi SUGINISHI, Akira TADA, Satoshi FUKUDA
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Publication number: 20210054301Abstract: The present invention provides a refrigerating machine oil comprising a hydrocarbon-based base oil having a viscosity index of 120 or less, and the refrigerating machine oil being used with a 1-chloro-2,3,3,3-tetrafluoropropene refrigerant.Type: ApplicationFiled: February 15, 2017Publication date: February 25, 2021Applicants: JXTG NIPPON OIL & ENERGY CORPORATION, JXTG NIPPON OIL & ENERGY CORPORATIONInventors: Yohei SHONO, Akira TADA, Yuya MIZUTANI, Takeshi OKIDO, Hidetoshi OGATA, Tatsuki NAKAJIMA
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Patent number: 10759982Abstract: The present invention provides a refrigerating machine oil comprising, as a base oil, at least one oxygen-containing oil having a carbon/oxygen molar ratio of 2.5 or more and 7.5 or less, and the refrigerating machine oil being used with a 1-chloro-2,3,3,3-tetrafluoropropene refrigerant.Type: GrantFiled: February 15, 2017Date of Patent: September 1, 2020Assignee: JXTG NIPPON OIL & ENERGY CORPORATIONInventors: Yohei Shono, Akira Tada, Yuya Mizutani, Takeshi Okido, Hidetoshi Ogata
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Publication number: 20200199476Abstract: In an aspect, the present invention provides a refrigerating machine oil comprising a poly(meth)acrylate as a base oil, wherein the poly(meth)acrylate comprises a hydrogenated poly(meth)acrylate, a content of a unit having a carbon-carbon double bond present at a terminal in the poly(meth)acrylate is 6% by mole or less relative to total units constituting the poly(meth)acrylate, and a kinematic viscosity at 40° C. of the hydrogenated poly(meth)acrylate is 1 to 1000 mm2/s, the refrigerating machine oil being used with a refrigerant comprising a refrigerant selected from difluoromethane, a mixture of difluoromethane and pentafluoroethane, a mixture of difluoromethane, pentafluoroethane, and 1,1,1,2-tetrafluoroethane, a mixture of pentafluoroethane, 1,1,1,2-tetrafluoroethane, and 1,1,1-trifluoroethane, an unsaturated hydrofluorocarbon, a hydrocarbon, and carbon dioxide.Type: ApplicationFiled: October 20, 2017Publication date: June 25, 2020Applicant: JXTG NIPPON OIL & ENERGY CORPORATIONInventors: Kentaro YAMAGUCHI, Akira TADA, Tatsuki NAKAJIMA, Takeshi OKIDO, Hidetoshi OGATA
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Patent number: 10611984Abstract: The refrigerating machine oil according to the present invention comprises a polyalkylene glycol represented by the following formula (1): R1—(OR3)n—OR2??(1) [R1 and R2 may be the same or different from each other and each represent a hydrogen atom, an alkyl group having from 1 to 5 carbon atoms, or an acyl group having from 2 to 5 carbon atoms, R3 represents an alkylene group having from 2 to 4 carbon atoms, n represents an integer such that a number average molecular weight of the polyalkylene glycol represented by the formula (1) is from 1000 to 2500] the polyalkylene glycol having a ratio of the weight average molecular weight Mw to the number average molecular weight Mn, Mw/Mn, of from 1.00 to 1.15, the refrigerating machine oil being used with a mildly flammable hydrofluorocarbon refrigerant.Type: GrantFiled: May 21, 2018Date of Patent: April 7, 2020Assignee: JXTG Nippon Oil & Energy CorporationInventors: Hitoshi Takahashi, Ken Sawada, Akira Tada, Souichirou Konno
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Patent number: 10550351Abstract: The present invention provides a refrigerating machine oil comprising at least one oxygen-containing oil having a carbon/oxygen molar ratio of 2.5 or more and 5.8 or less as a base oil, and the refrigerating machine oil being used with a trifluoroethylene refrigerant.Type: GrantFiled: February 27, 2015Date of Patent: February 4, 2020Assignees: JX NIPPON OIL & ENERGY CORPORATION, AGC INC.Inventors: Hitoshi Takahashi, Tsutomu Takahashi, Akira Tada, Souichirou Konno
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Patent number: 10494585Abstract: The present invention provides a refrigerating machine oil comprising: an ester of a polyhydric alcohol and a fatty acid as a base oil; and an ether compound of a polyhydric alcohol, the refrigerating machine oil being used with an unsaturated hydrofluorocarbon refrigerant.Type: GrantFiled: February 12, 2016Date of Patent: December 3, 2019Assignee: JXTG Nippon Oil & Energy CorporationInventors: Akira Tada, Ken Sawada
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Publication number: 20190161701Abstract: The present invention provides a refrigerating machine oil including a lubricating base oil and a compound represented by the following formula (A): wherein Ra and Rb each independently represent a monovalent hydrocarbon group, Rc represents a divalent hydrocarbon group, X represents a polar group, and Za and Zb each independently represent oxygen atom or sulfur atom.Type: ApplicationFiled: July 28, 2017Publication date: May 30, 2019Applicant: JXTG NIPPON OIL & ENERGY CORPORATIONInventors: Yohei SHONO, Yuya MIZUTANI, Kentaro YAMAGUCHI, Akira TADA, Hidetoshi OGATA
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Publication number: 20190078005Abstract: The present invention provides a refrigerating machine oil comprising, as a base oil, at least one oxygen-containing oil having a carbon/oxygen molar ratio of 2.5 or more and 7.5 or less, and the refrigerating machine oil being used with a 1-chloro-2,3,3,3-tetrafluoropropene refrigerant.Type: ApplicationFiled: February 15, 2017Publication date: March 14, 2019Applicant: JXTG NIPPON OIL & ENERGY CORPORATIONInventors: Yohei SHONO, Akira TADA, Yuya MIZUTANI, Takeshi OKIDO, Hidetoshi OGATA
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Publication number: 20180265801Abstract: The refrigerating machine oil according to the present invention comprises a polyalkylene glycol represented by the following formula (1): R1—(OR3)n—OR2??(1) [R1 and R2 may be the same or different from each other and each represent a hydrogen atom, an alkyl group having from 1 to 5 carbon atoms, or an acyl group having from 2 to 5 carbon atoms, R3 represents an alkylene group having from 2 to 4 carbon atoms, n represents an integer such that a number average molecular weight of the polyalkylene glycol represented by the formula (1) is from 1000 to 2500] the polyalkylene glycol having a ratio of the weight average molecular weight Mw to the number average molecular weight Mn, Mw/Mn, of from 1.00 to 1.15, the refrigerating machine oil being used with a mildly flammable hydrofluorocarbon refrigerant.Type: ApplicationFiled: May 21, 2018Publication date: September 20, 2018Applicant: JXTG Nippon Oil & Energy CorporationInventors: Hitoshi Takahashi, Ken Sawada, Akira Tada, Souichirou Konno