公开(公告)号：US20210371766A1

公开(公告)日：2021-12-02

申请号：US17286644

申请日：2019-10-16

Applicant: Idemitsu Kosan Co., Ltd.

Inventor： Keiichi NARITA

IPC: C10M141/12 ,  C10M169/04 ,  C10M137/04 ,  C10M135/36 ,  C10M139/00

Abstract: A lubricating oil composition containing a lubricating base oil (A), a neutral phosphorus-based compound (B), an acidic phosphorus-based compound (C), a sulfur-based compound (D) and an organic molybdenum compound (E).

公开(公告)号：US20240384193A1

公开(公告)日：2024-11-21

申请号：US18696606

申请日：2022-09-16

Applicant: IDEMITSU KOSAN CO.,LTD.

Inventor： Keiichi NARITA

IPC: C10M101/02 ,  C10M107/02 ,  C10M107/32 ,  C10M137/04 ,  C10N20/02 ,  C10N20/04 ,  C10N30/06 ,  C10N40/04

Abstract: A lubricating oil composition that satisfies the fuel efficiency with a low viscosity and a low traction coefficient, the wear resistance, the usability with a high flash point, and the low temperature fluidity, at high levels, having a base oil having a kinematic viscosity at 40° C. of 3.000 mm2/s or more and 20.000 mm2/s or less as a component (A); and a base oil having a kinematic viscosity at 40°° C. of 100.000 mm2/s or more and 2000.000 mm2/s or less as a component (B), the component (A) having a flash point of 180° C. or more, the lubricating oil composition having a content of the component (B) of 0.01% by mass or more and 2.00% by mass or less based on the total amount of the lubricating oil composition, a lubricating method using the same, and a transmission including the same.

公开(公告)号：US20200172825A1

公开(公告)日：2020-06-04

申请号：US16631666

申请日：2019-01-09

Applicant: IDEMITSU KOSAN CO., LTD.

Inventor： Keiichi NARITA

IPC: C10M141/10 ,  C10M137/04 ,  C10M135/36 ,  C10M133/08

Abstract: Provided is a lubricant composition comprising a lubricant base oil (A), a neutral phosphorus compound (B), an acidic phosphorus compound (C), a sulfur compound (D), and a secondary amine compound (E), and having a flash point of 172° C. or higher.

公开(公告)号：US20190264124A1

公开(公告)日：2019-08-29

申请号：US16318443

申请日：2017-10-19

Applicant: IDEMITSU KOSAN CO., LTD.

Inventor： Keiichi NARITA

IPC: C10M141/06 ,  C10M133/16 ,  C10M133/08 ,  C10M133/44 ,  C10M169/04

Abstract: Provided are a lubricating oil composition containing a component (A): a succinimide having an alkenyl group or an alkyl group, a component (B): a primary amine having a hydrocarbon group having 12 or more and 24 or less carbon atoms, a component (C): a fatty acid amide compound, and a component (D): an amide compound having a specific structure, and capable of satisfying both a high clutch capacity and a long anti-shudder lifetime; and a lubrication method and a transmission using the composition.

公开(公告)号：US20190024016A1

公开(公告)日：2019-01-24

申请号：US16079941

申请日：2017-02-28

Applicant: IDEMITSU KOSAN CO., LTD.

Inventor： Keiichi NARITA

IPC: C10M169/04

Abstract: Provided are: a lubricating oil composition containing a mineral oil (A) having a kinematic viscosity at 40° C. of 5 to 15 mm2/s and a flash point of 180° C. or higher, a synthetic oil (B) having a kinematic viscosity at 40° C. of 5 to 15 mm2/s and a flash point of 190° C. or higher, an amide compound (C) and a polyol ester compound (D), which has a low viscosity and fuel saving performance, which can be used in high-temperature environments, and which has excellent gear anti-seizing property and anti-shudder performance; and a lubrication method and a transmission using the lubricating oil composition.

公开(公告)号：US20230272297A1

公开(公告)日：2023-08-31

申请号：US18005692

申请日：2021-08-23

Applicant: IDEMITSU KOSAN CO.,LTD.

Inventor： Akio KOJIMA ,  Yukio YOSHIDA ,  Kenichi OGATA ,  Shota KATO ,  Keiichi NARITA

IPC: C10M107/32 ,  C10M107/24

CPC classification number: C10M107/32 ,  C10M107/24 ,  C10N2030/02

Abstract: A lubricating oil composition may have a high flash point, a low pour point, and excellent electrical insulation, while having excellent cooling performance. Such a lubricating oil composition may include a base oil (A), wherein the base oil (A) includes at least one synthetic oil (A1) selected from a polyalkylene glycol having a specific degree of polymerization and a polyvinyl ether having a specific degree of polymerization.

公开(公告)号：US20170051228A1

公开(公告)日：2017-02-23

申请号：US15119568

申请日：2015-02-16

Applicant: IDEMITSU KOSAN CO., LTD.

Inventor： Keiichi NARITA ,  Atsushi NARA

IPC: C10M135/10 ,  C10M137/04 ,  C10M137/02 ,  C10M133/06

CPC classification number: C10M163/00 ,  C10M2203/1006 ,  C10M2203/1025 ,  C10M2207/027 ,  C10M2207/028 ,  C10M2207/144 ,  C10M2207/262 ,  C10M2209/084 ,  C10M2215/02 ,  C10M2215/04 ,  C10M2219/044 ,  C10M2219/046 ,  C10M2219/106 ,  C10M2223/04 ,  C10M2223/041 ,  C10M2223/047 ,  C10M2223/049 ,  C10M2229/02 ,  C10N2210/02 ,  C10N2230/02 ,  C10N2230/06 ,  C10N2230/18 ,  C10N2230/52 ,  C10N2240/04 ,  C10N2240/045

Abstract: A lubricating oil composition includes: a lubricating base oil; a component (A) that is a metal detergent having a base value of less than 100 mgKOH/g; a component (B) that is a metal detergent having a base value of 100 mgKOH/g or more; a component (C) that is a tertiary amine represented by a formula (1) below, in which R1 is a hydrocarbon group having 4 carbon atoms or more, and R2 and R3 each are a hydrocarbon group having 4 carbon atoms or less; and a component (D) that is at least one of acid phosphate and acid phosphite.

Abstract translation: 其中R1是具有4个或更多个碳原子的烃基，R2和R3各自是具有4个碳原子或更少的烃基; 和作为酸式磷酸酯和酸式亚磷酸酯中的至少一种的成分（D）。

公开(公告)号：US20160186091A1

公开(公告)日：2016-06-30

申请号：US15060084

申请日：2016-03-03

Applicant: IDEMITSU KOSAN CO., LTD.

Inventor： Keiichi NARITA

IPC: C10M169/04 ,  C10M161/00 ,  C10M135/36 ,  C10M101/02 ,  C10M145/14

CPC classification number: C10M169/044 ,  C10M101/02 ,  C10M135/36 ,  C10M145/14 ,  C10M161/00 ,  C10M169/04 ,  C10M2203/1006 ,  C10M2209/084 ,  C10M2219/104 ,  C10M2219/106 ,  C10N2220/022 ,  C10N2230/02 ,  C10N2230/06 ,  C10N2230/68 ,  C10N2240/042 ,  C10N2220/021

Abstract: A lubricating oil composition contains: a first base oil with a kinematic viscosity at 100 degrees C. in a range from 1.5 mm2/s to 3.5 mm2/s; a second base oil with a kinematic viscosity at 100 degrees C. in a range more than 3.5 mm2/s but not more than 100 mm2/s; polymethacrylate with a mass average molecular weight in a range from 1×104 to 4×104; and a sulfur compound. The lubricating oil composition has a kinematic viscosity at 100 degrees C. in a range from 5 mm2/s to 6 mm2/s and a viscosity index of 200 or more.

Abstract translation: 润滑油组合物含有：在100℃下的运动粘度在1.5mm 2 / s至3.5mm 2 / s的范围内的第一基础油; 在100℃下的运动粘度在大于3.5mm 2 / s但不大于100mm 2 / s的范围内的第二基础油; 质量平均分子量在1×10 4至4×10 4范围内的聚甲基丙烯酸酯; 和硫化合物。 该润滑油组合物在100℃下的运动粘度为5mm 2 / s〜6mm 2 / s，粘度指数为200以上。

公开(公告)号：US20230265353A1

公开(公告)日：2023-08-24

申请号：US18005206

申请日：2021-07-21

Applicant: IDEMITSU KOSAN CO.,LTD.

Inventor： Shota KATO ,  Keiichi NARITA ,  Hiroaki KOSHIMA ,  Kenichi OGATA

IPC: C10M111/02 ,  C10M101/00 ,  C10M105/36 ,  C10M105/34

CPC classification number: C10M111/02 ,  C10M101/00 ,  C10M105/36 ,  C10M105/34 ,  C10M2203/1006 ,  C10M2207/2825 ,  C10M2207/2815 ,  C10N2030/02

Abstract: A lubricating oil composition may be superior in cooling performance, ensure electrical insulation, and have a high flash point. Such a lubricating oil composition may include a base oil (A) including an ester-based synthetic oil (A1), the content of the ester-based synthetic oil (A1) is 30% by mass to 100% by mass based on the total amount of the base oil (A), the ester-based synthetic oil (A1) is one or more of an ester (A1-1) of a monohydric alcohol and a monobasic acid and an ester (A1-2) of a monohydric alcohol and a polybasic acid, and the base oil (A) satisfies requirements (1) to (3): Requirement (1): the kinematic viscosity at 40° C. is 2.00 mm2/s to 4.00 mm2/s. Requirement (2): the specific heat at 20° C. is 1.75 kJ/(kg·K) or less. Requirement (3): the density at 20° C. is 0.850 g/cm3 or more.

公开(公告)号：US20230039111A1

公开(公告)日：2023-02-09

申请号：US17792362

申请日：2021-01-15

Applicant: Idemitsu Kosan Co.,Ltd.

Inventor： Yasuhito NAKAHARA ,  Hiroyuki TATSUMI ,  Keiichi NARITA ,  Koki ITO

IPC: C10M131/04 ,  C10M101/02 ,  C10M169/04

Abstract: A lubricating oil composition which contains a base oil and a fluorine compound and may have improved cooling performance. The base oil may contain a mineral oil. The base oil may have a kinematic viscosity in a range of from 1 to 25 mm2/s at 40° C. The content of the fluorine compound may be in a range of from 3 to 30% by weight based on the total amount of the composition.