Patents by Inventor Yohei SUSUKIDA
Yohei SUSUKIDA 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: 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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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: 11214755Abstract: A lubricating oil composition including: a lubricating base oil; (A) a poly(meth)acrylate having a weight average molecular weight of no more than 50,000, in an amount of 2 to 10 mass %; (B) a phosphite ester of the general formula (1) in an amount of 0.01 to 0.06 mass % in terms of P; (C) a thiadiazole compound in an amount of 0.01 to 0.2 mass %; and (D) a Ca salicylate detergent in an amount of 0.005 to 0.03 mass % in terms of Ca, wherein the lubricating oil composition has a kinematic viscosity at 40° C. of 4.0 to 20.0 mm2/s, and a kinematic viscosity at 100° C. of 1.8 to 5.2 mm2/s; and has a ratio [S]/[P] of 2.2 to 4.0, wherein the [S] represents a sulfur content, and the [P] represents a phosphorus content: wherein R1 and R2 are each independently a group having 5 to 20 carbons represented by the general formula (2); and wherein R3 is a C2-17 linear chain hydrocarbon group, and R4 is a C2-17 linear chain hydrocarbon group.Type: GrantFiled: April 7, 2020Date of Patent: January 4, 2022Assignees: ENEOS CORPORATION, TOYOTA JIDOSHA KABUSHIKIKAISHAInventors: Yohei Susukida, Takahiro Fukumizu, Takatoshi Shinyoshi, Daisuke Tokozakura
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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: 20200332218Abstract: A lubricating oil composition including: a lubricating base oil; (A) a poly(meth)acrylate having a weight average molecular weight of no more than 50,000, in an amount of 2 to 10 mass %; (B) a phosphite ester of the general formula (1) in an amount of 0.01 to 0.06 mass % in terms of P; (C) a thiadiazole compound in an amount of 0.01 to 0.2 mass %; and (D) a Ca salicylate detergent in an amount of 0.005 to 0.03 mass % in terms of Ca, wherein the lubricating oil composition has a kinematic viscosity at 40° C. of 4.0 to 20.0 mm2/s, and a kinematic viscosity at 100° C. of 1.8 to 5.2 mm2/s; and has a ratio [S]/[P] of 2.2 to 4.0, wherein the [S] represents a sulfur content, and the [P] represents a phosphorus content: wherein R1 and R2 are each independently a group having 5 to 20 carbons represented by the general formula (2); and wherein R3 is a C2-17 linear chain hydrocarbon group, and R4 is a C2-17 linear chain hydrocarbon group.Type: ApplicationFiled: April 7, 2020Publication date: October 22, 2020Applicants: JXTG NIPPON OIL & ENERGY CORPORATION, TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Yohei SUSUKIDA, Takahiro FUKUMIZU, Takatoshi SHINYOSHI, Daisuke TOKOZAKURA