公开(公告)号：US20180119049A1

公开(公告)日：2018-05-03

申请号：US15561813

申请日：2016-03-29

申请人： IDEMITSU KOSAN CO., LTD.

发明人： Masato YOKOMIZO ,  Keiichi NARITA

IPC分类号： C10M169/04 ,  C10M101/00 ,  C10M133/06 ,  C10M139/00 ,  C10M137/02 ,  C10M137/04 ,  C10M141/12

CPC分类号： C10M169/04 ,  C10M101/00 ,  C10M133/06 ,  C10M137/02 ,  C10M137/04 ,  C10M139/00 ,  C10M141/12 ,  C10M163/00 ,  C10M2203/003 ,  C10M2203/1006 ,  C10M2205/0285 ,  C10M2207/028 ,  C10M2207/262 ,  C10M2207/289 ,  C10M2209/084 ,  C10M2215/04 ,  C10M2215/26 ,  C10M2215/28 ,  C10M2219/046 ,  C10M2219/106 ,  C10M2223/04 ,  C10M2223/041 ,  C10M2223/049 ,  C10M2227/06 ,  C10N2220/021 ,  C10N2230/02 ,  C10N2230/04 ,  C10N2230/06 ,  C10N2230/08 ,  C10N2230/42 ,  C10N2230/76 ,  C10N2240/045 ,  C10N2210/02

摘要： The present invention relates to a lubricating oil composition prepared by blending (A) a tertiary amine having a specific structure, (B) a metal-based detergent having a total base number according to a perchloric acid method of 50 mgKOH/g or less, (C) a metal-based detergent having a total base number according to a perchloric acid method of 150 mgKOH/g or more, (D) at least one selected from an acidic phosphate and an acidic phosphite, and (E) a lubricating base oil, which satisfies a requirement (X): the mass ratio of the metal fraction derived from the component (B) to the metal fraction derived from the component (C) (B/C) is 0.60 or less.

公开(公告)号：US20230074611A1

公开(公告)日：2023-03-09

申请号：US17904439

申请日：2020-12-18

申请人： Idemitsu Kosan Co.,Ltd.

发明人： Masato YOKOMIZO ,  Koki ITO ,  Hidenori TORII ,  Shota KATO ,  Genki OKUYAMA

IPC分类号： C10M171/00 ,  G01N21/64 ,  C10M127/04 ,  C10M133/12

摘要： A lubricating oil composition having a fluorescent compound that emits a fluorescent light. The fluorescent compound has a property of deteriorating with relevance to a deterioration of the lubricating oil composition. A deterioration measurement device having a light emitter that emits an irradiation light toward a measurement target object including a fluorescent compound, a light receiver, and a sensor. A deterioration measurement system having a lubricating oil composition and a deterioration measurement device.

公开(公告)号：US20190292482A1

公开(公告)日：2019-09-26

申请号：US16317074

申请日：2017-10-27

申请人： IDEMITSU KOSAN CO., LTD

发明人： Yasuhito NAKAHARA ,  Masato YOKOMIZO ,  Hideki KAMANO

IPC分类号： C10M169/04 ,  C10M101/00 ,  C10M137/10 ,  C10M137/04 ,  C10M137/08 ,  C10M135/22 ,  C10M133/44 ,  C10M141/10

摘要： Provided are a lubricating oil composition excellent in anti-seizing properties and ant-wear properties, containing a base oil containing at least a mineral oil and a sulfur- and phosphorus-containing anti-wear agent, a mass ratio (S/P ratio) of a sulfur atom and a phosphorus atom contained in the composition being 7.5 or more and 16 or less; and a lubrication method and a gear each using the same.