Patents by Inventor Taro SUMI
Taro SUMI 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: 12006485Abstract: The present invention provides a lubricating oil additive, including: a molybdenum compound (A) represented by the following general formula (1); and a sulfur-based composition (B) containing a sulfur-based compound (b-1) represented by the following general formula (2) and at least one kind of sulfur-based compound (b-2) represented by the following general formula (3) or (4), and a lubricating oil composition containing the additive. In the formula (1), R1 to R4 each represent alkyl groups having 6 to 18 carbon atoms, the groups being identical to or different from each other, and X1 to X4 each independently represent an oxygen atom or a sulfur atom. In the formula (2), R5 and R6 each represent alkyl groups having 3 to 24 carbon atoms, the groups being identical to or different from each other, and “a” and “b” each represent a number from 1 to 5.Type: GrantFiled: July 14, 2020Date of Patent: June 11, 2024Assignees: ADEKA CORPORATION, DIC CORPORATIONInventors: Shinji Iino, Eiji Katsuno, Taro Sumi, Hironobu Matsueda, Hiroshi Sakata
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Publication number: 20220259515Abstract: The present invention provides a lubricating oil additive, including: a molybdenum compound (A) represented by the following general formula (1); and a sulfur-based composition (B) containing a sulfur-based compound (b-1) represented by the following general formula (2) and at least one kind of sulfur-based compound (b-2) represented by the following general formula (3) or (4), and a lubricating oil composition containing the additive. In the formula (1), R1 to R4 each represent alkyl groups having 6 to 18 carbon atoms, the groups being identical to or different from each other, and X1 to X4 each independently represent an oxygen atom or a sulfur atom. In the formula (2), R5 and R6 each represent alkyl groups having 3 to 24 carbon atoms, the groups being identical to or different from each other, and “a” and “b” each represent a number from 1 to 5.Type: ApplicationFiled: July 14, 2020Publication date: August 18, 2022Applicants: ADEKA CORPORATION, DIC CORPORATIONInventors: Shinji IINO, Eiji KATSUNO, Taro SUMI, Hironobu MATSUEDA, Hiroshi SAKATA
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Publication number: 20220195321Abstract: The present invention provides a fuel oil composition, including: a fuel oil base oil having a sulfur element content of from 0.01 mass % to 0.50 mass %; and a calcium salicylate having a total base number of from 100 mgKOH/g to 1,200 mgKOH/g.Type: ApplicationFiled: March 23, 2020Publication date: June 23, 2022Applicant: ADEKA CORPORATIONInventors: Keiichi ODAGIRI, Taro SUMI, Eiji KATSUNO, Ryou HANAMURA
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Patent number: 11248187Abstract: A lubricating composition including: a base oil, a lubricant additive composition including, as a component (A), an organic molybdenum compound of the formula (1) described in the specification, and as a component (B), an amine compound of the formula (2) described in the specification, and a specific metal-based cleaner, wherein a content of the component (B) is 2.9 to 18.6 parts by mass relative to 100 parts by mass of molybdenum atoms of the component (A), and a content of the metal-based cleaner is 0.1% to 10% by mass relative to a total amount of the lubricating composition, wherein the lubricating composition does not include tetraalkyl thiuram disulphide, and wherein the component (A) in terms of the amount of molybdenum atoms is 400 to 1200 ppm by mass relative to a total amount of the lubricating composition.Type: GrantFiled: March 24, 2021Date of Patent: February 15, 2022Assignee: ADEKA CORPORATIONInventors: Shinji Iino, Eiji Katsuno, Taro Sumi
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Patent number: 11118128Abstract: A fuel-saving-type engine oil composition is provided that exhibits a satisfactory friction-reducing effect in a low-viscosity engine oil without being constrained by, for example, high temperatures, low temperatures, low loads, or high loads. The engine oil composition includes: an engine oil having a low-temperature viscosity of from 0 to 10 in SAE viscosity grades and a high-temperature viscosity of from 4 to 20 in the SAE viscosity grades; and a molybdenum compound (A) represented by the following general formula (1): where R1 to R4 each independently represent a hydrocarbon group having 4 to 18 carbon atoms, and not all of R1 to R4 represent the same group, and when R1 and R2 represent the same group, R3 and R4 do not represent the same group, and X1 to X4 each independently represent a sulfur atom or an oxygen atom.Type: GrantFiled: January 22, 2018Date of Patent: September 14, 2021Assignee: ADEKA CORPORATIONInventors: Taro Sumi, Shinji Iino
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Publication number: 20210253973Abstract: A lubricating composition including: a base oil, a lubricant additive composition including, as a component (A), an organic molybdenum compound of the formula (1) described in the specification, and as a component (B), an amine compound of the formula (2) described in the specification, and a specific metal-based cleaner, wherein a content of the component (B) is 2.9 to 18.6 parts by mass relative to 100 parts by mass of molybdenum atoms of the component (A), and a content of the metal-based cleaner is 0.1% to 10% by mass relative to a total amount of the lubricating composition, wherein the lubricating composition does not include tetraalkyl thiuram disulphide, and wherein the component (A) in terms of the amount of molybdenum atoms is 400 to 1200 ppm by mass relative to a total amount of the lubricating composition.Type: ApplicationFiled: March 24, 2021Publication date: August 19, 2021Applicant: ADEKA CORPORATIONInventors: Shinji IINO, Eiji KATSUNO, Taro SUMI
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Patent number: 10920167Abstract: A lubricant composition including a binuclear molybdenum compound (A) and a trinuclear molybdenum compound (B), wherein these compounds are included in a range represented by (molybdenum of the binuclear molybdenum compound (A)):(molybdenum of the trinuclear molybdenum compound (B))=99.98:0.02 to 95:5 as a mass ratio.Type: GrantFiled: June 26, 2017Date of Patent: February 16, 2021Assignee: ADEKA CORPORATIONInventors: Eiji Katsuno, Taro Sumi
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Patent number: 10913917Abstract: An internal combustion engine lubricating oil composition containing a base oil that is a hydrocarbon oil containing less than 1% by mass of aromatic components and having a sulphur content of less than 20 ppm by mass; a specific organic molybdenum compound as a component (A) at 300 to 1500 ppm by mass as molybdenum atoms; and a borate ester compound as a component (B) at 100 to 1000 ppm by mass as boron atoms.Type: GrantFiled: June 27, 2017Date of Patent: February 9, 2021Assignee: ADEKA CORPORATIONInventors: Taro Sumi, Shinji Iino
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Publication number: 20190330552Abstract: A fuel-saving-type engine oil composition is provided that exhibits a satisfactory friction-reducing effect in a low-viscosity engine oil without being constrained by, for example, high temperatures, low temperatures, low loads, or high loads. The engine oil composition includes: an engine oil having a low-temperature viscosity of from 0 to 10 in SAE viscosity grades and a high-temperature viscosity of from 4 to 20 in the SAE viscosity grades; and a molybdenum compound (A) represented by the following general formula (1): where R1 to R4 each independently represent a hydrocarbon group having 4 to 18 carbon atoms, and not all of R1 to R4 represent the same group, and when R1 and R2 represent the same group, R3 and R4 do not represent the same group, and X1 to X4 each independently represent a sulfur atom or an oxygen atom.Type: ApplicationFiled: January 22, 2018Publication date: October 31, 2019Applicant: ADEKA CORPORATIONInventors: Taro SUMI, Shinji IINO
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Publication number: 20190264125Abstract: A lubricant additive composition including, as a component (A), an organic molybdenum compound represented by general formula (1) described in the specification, and as a component (B), an amine compound represented by general formula (2) described in the specification, wherein content of the component (B) is 1 to 20 parts by mass relative to 100 parts by mass of molybdenum atoms of the component (A), and a lubricating composition containing same.Type: ApplicationFiled: June 27, 2017Publication date: August 29, 2019Applicant: ADEKA CORPORATIONInventors: Shinji IINO, Eiji KATSUNO, Taro SUMI
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Publication number: 20190203146Abstract: An internal combustion engine lubricating oil composition containing a base oil that is a hydrocarbon oil containing less than 1% by mass of aromatic components and having a sulphur content of less than 20 ppm by mass; a specific organic molybdenum compound as a component (A) at 300 to 1500 ppm by mass as molybdenum atoms; and a borate ester compound as a component (B) at 100 to 1000 ppm by mass as boron atoms.Type: ApplicationFiled: June 27, 2017Publication date: July 4, 2019Applicant: ADEKA CORPORATIONInventors: Taro SUMI, Shinji IINO
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Publication number: 20190169527Abstract: A lubricant composition including a binuclear molybdenum compound (A) and a trinuclear molybdenum compound (B), wherein these compounds are included in a range represented by (molybdenum of the binuclear molybdenum compound (A)):(molybdenum of the trinuclear molybdenum compound (B))=99.98:0.02 to 95:5 as a mass ratio.Type: ApplicationFiled: June 26, 2017Publication date: June 6, 2019Applicant: ADEKA CORPORATIONInventors: Eiji KATSUNO, Taro SUMI