公开(公告)号：US12077721B2

公开(公告)日：2024-09-03

申请号：US17762140

申请日：2020-10-16

申请人： Kyodo Yushi Co., Ltd.

发明人： Satoshi Yamazaki ,  Yoshiyuki Nagasawa ,  Daisuke Tsutsui ,  Osamu Nakamura ,  Hiroyuki Yoshida ,  Tsubasa Ishizeki

IPC分类号： C10M169/02 ,  C10M101/02 ,  C10M107/02 ,  C10M111/04 ,  C10M115/08 ,  C10N20/02 ,  C10N40/00 ,  C10N50/10

CPC分类号： C10M169/02 ,  C10M101/02 ,  C10M107/02 ,  C10M111/04 ,  C10M115/08 ,  C10M2203/1006 ,  C10M2205/0206 ,  C10M2215/1026 ,  C10N2020/02 ,  C10N2040/40 ,  C10N2050/10

摘要： The invention provides a grease composition for a speed reducer part of an on-vehicle electric component, the grease composition containing a base oil and a thickener, wherein



the base oil is poly-α-olefin or a mixed oil of poly-α-olefin and mineral oil having a kinematic viscosity of 4 to 19 mm2/s at 100° C. and a pour point of −30° C. or lower,
the thickener is a mixture of a diurea compound expressed by formula (1) and a diurea compound expressed by formula (2)

R1—NHCONH—R2—NHCONH—R1  (1)

R3—NHCONH—R2—NHCONH—R3  (2)

wherein R1 is a straight-chain alkyl group having 8 or 18 carbon atoms, R2 is a divalent aromatic hydrocarbon group having 6 to 15 carbon atoms, and R3 is an aryl group having 6 to 7 carbon atoms, and

a penetration of the grease composition is 220 to 280.

公开(公告)号：US20230304632A1

公开(公告)日：2023-09-28

申请号：US18001332

申请日：2021-03-30

申请人： TOYOTA JIDOSHA KABUSHIKI KAISHA ,  KYODO YUSHI CO., LTD.

发明人： Junichi SUDO ,  Youji KANEHARA ,  Koushi YAMADA ,  Kenichiro SAKURAI ,  Toshio TANAHASHI ,  Ko TANIMURA ,  Tomonobu KOMORIYA

IPC分类号： F16N39/00

CPC分类号： F16N39/00

摘要： In a vehicle having a microscopic dynamics friction mechanism formed of at least two parts and charged to a positive potential due to traveling, a lubricant in which first additive fine particles made of a resin that generates a negative potential are uniformly mixed with an electrically insulating base oil is disposed in a clearance between members of the friction mechanism. While the first additive fine particles are in frictional contact with the member, neutralization and elimination of the positive potential of the member are started. The first additive fine particles are attracted by a Coulomb force to the positive potential of the surface of the member other than a frictional contact part of the member when floating in the electrically insulating base oil and moving and circulating. The neutralization and elimination of the positive potential of the member are continued.

公开(公告)号：US20230272299A1

公开(公告)日：2023-08-31

申请号：US18014651

申请日：2021-07-05

申请人： JTEKT CORPORATION ,  KYODO YUSHI CO., LTD.

发明人： Kanako NIIYA ,  Kazunori MIYAKE ,  Masayuki MURAKAMI ,  Shota AKIMOTO ,  Takahiro MAEDA ,  Kaname NISHI ,  Michitaka YOSHIHARA ,  Kazuki ISA ,  Koki ANDO

IPC分类号： C10M137/10 ,  C10M125/22 ,  C10M129/26 ,  C10M169/06 ,  C10M133/12

CPC分类号： C10M137/10 ,  C10M125/22 ,  C10M129/26 ,  C10M169/06 ,  C10M133/12 ,  C10N2040/02

摘要： The present invention relates to a grease composition including: a base oil; a thickener; a rust inhibitor; and an extreme pressure agent, in which the rust inhibitor includes, with respect to a total mass of the grease composition: 0.10 mass % to 10.00 mass % of a calcium sulfonate; 0.20 mass % to 10.00 mass % of a zinc sulfonate; and 0.10 mass % to 10.00 mass % of a zinc carboxylate, and the extreme pressure agent includes, with respect to the total mass of the grease composition, 2.00 mass % to 14.00 mass % of a zinc dialkyldithiophosphate.

公开(公告)号：US20220112440A1

公开(公告)日：2022-04-14

申请号：US17425141

申请日：2020-01-21

申请人： TOYOTA JIDOSHA KABUSHIKI KAISHA ,  KYODO YUSHI CO., LTD.

发明人： Junichi SUDO ,  Hiroyuki ARAI ,  Youji KANEHARA ,  Koushi YAMADA ,  Ko TANIMURA ,  Tomonobu KOMORIYA

IPC分类号： C10M169/00 ,  C10M115/08 ,  C10M125/02 ,  C10M147/00 ,  C10M161/00 ,  F16C33/66

摘要： A lubricant that enables to improve control stability of an automobile or the like having a vehicle body charged by driving. A lubricant for improving control stability of an automobile includes a base oil and an additive containing a carbon black. A kit for improving control stability of an automobile includes a discharging member including a protrusion that performs a self-discharging by air-ionizing and the lubricant. A method also improves control stability of an automobile.

公开(公告)号：US20210324294A1

公开(公告)日：2021-10-21

申请号：US17230482

申请日：2021-04-14

申请人： KYODO YUSHI CO., LTD. ,  DENSO CORPORATION

发明人： Takahiro NIHIRA ,  Chiemi NAKAYAMA ,  Daisuke TSUTSUI ,  Shozo IKEJIMA ,  Ryuji AOKI ,  Takahiro NOZU

IPC分类号： C10M169/06 ,  C10M107/10 ,  C10M119/06 ,  C10M135/20

摘要： The present invention provides a grease composition for electrical contacts, including: a thickener; a base oil; and an organic sulfur compound, wherein the organic sulfur compound is a compound having no heterocycle containing nitrogen in a molecule thereof.

公开(公告)号：US10947477B2

公开(公告)日：2021-03-16

申请号：US16078992

申请日：2017-03-08

申请人： KYODO YUSHI CO., LTD.

发明人： Terasu Yoshinari ,  Tomonobu Komoriya ,  Yuki Takeyama

IPC分类号： C10M169/02 ,  C10M105/18 ,  C10M115/08 ,  C10M169/06 ,  C10N30/06 ,  C10N50/10 ,  C10N30/08 ,  C10N30/10 ,  C10N40/02

摘要： Provided is a grease composition including a thickener and a base oil, in which the thickener is a urea compound represented by formula (1) R1-NHCONH—R2-NHCONH—R3  (1) wherein R2 represents a divalent C6-15 aromatic hydrocarbon group, and R1 and R3 may be the same or different and each represent an C8-22 alkyl group, a cyclohexyl group, or an C6-12 aryl group, and as the base oil, one or more types of a compound represented by formula (2) are contained at 40% by mass or more relative to a total mass of the base oil, wherein R4 and R5 may be the same or different and each represent a linear or branched C10-26 alkyl group, where m and n are real numbers being 0 or more which satisfy m+n=2.

公开(公告)号：US20200048575A1

公开(公告)日：2020-02-13

申请号：US16489486

申请日：2018-03-30

申请人： Kyodo Yushi Co., Ltd.

发明人： Takafumi SHIMIZU ,  Takahiro NIHIRA

IPC分类号： C10M169/04 ,  C10M107/10 ,  C10M135/18 ,  C10M105/24

摘要： The present invention provides a lubricating oil composition not containing ZnDTP but comprising: (a) a base oil; (b) molybdenum dialkyldithiocarbamate; and (c) an organic acid metal salt compound having a metal of Group 8 of a short periodic table, copper, or bismuth as a central metal.

公开(公告)号：US20170275558A1

公开(公告)日：2017-09-28

申请号：US15505382

申请日：2015-08-31

申请人： KYODO YUSHI CO., LTD.

发明人： Ryosuke SAITO ,  Yuta SATO

IPC分类号： C10M169/06 ,  C10M143/02 ,  C10M115/08 ,  C10M143/18 ,  C10M133/56 ,  C10M159/06 ,  C10M143/04

摘要： The invention provides a grease composition used for lubricating a mechanical part having a steel portion to be lubricated which performs a rolling motion and a rolling and sliding motion, containing a base oil, a thickener and an additive, wherein the additive includes at least one compound selected from the group consisting of polyethylene wax, oxidized polyethylene wax, polypropylene wax, montan wax and amide wax.

公开(公告)号：US20170175025A1

公开(公告)日：2017-06-22

申请号：US15386839

申请日：2016-12-21

申请人： KYODO YUSHI CO., LTD.

发明人： Takashi HANZAWA

IPC分类号： C10M133/42 ,  C23C14/24 ,  C23C14/12 ,  C09D5/00

CPC分类号： C10M133/42 ,  C09D5/00 ,  C10M105/70 ,  C10M2215/222 ,  C10M2215/2225 ,  C10N2230/06 ,  C10N2240/02 ,  C10N2240/04 ,  C10N2240/06 ,  C10N2240/20 ,  C10N2250/08 ,  C10N2250/10 ,  C10N2270/00 ,  C23C14/12 ,  C23C14/24

摘要： The invention provides a solid lubricant in the form of film containing a triazine compound or the salt thereof, such as melamine cyanurate or the like.

公开(公告)号：US20170074326A1

公开(公告)日：2017-03-16

申请号：US15125439

申请日：2015-03-12

申请人： Kyodo Yushi Co., Ltd. ,  NTN Corporation

发明人： Yuta Sato ,  Daisuke Tsutsui ,  Junichi Imai ,  Shinsuke Hirano

IPC分类号： F16C33/66 ,  C10M105/04 ,  C10M115/08 ,  F16C19/18 ,  C10M135/18 ,  C10M137/08 ,  C10M133/04 ,  C10M101/02 ,  C10M135/10

CPC分类号： F16C33/6633 ,  C10M101/02 ,  C10M105/04 ,  C10M115/08 ,  C10M133/04 ,  C10M135/10 ,  C10M135/18 ,  C10M137/08 ,  C10M169/06 ,  C10M2203/003 ,  C10M2203/1006 ,  C10M2205/0206 ,  C10M2205/0285 ,  C10M2215/02 ,  C10M2215/064 ,  C10M2215/1026 ,  C10M2219/044 ,  C10M2219/068 ,  C10M2223/043 ,  C10N2220/022 ,  C10N2230/02 ,  C10N2230/06 ,  C10N2230/10 ,  C10N2230/12 ,  C10N2250/10 ,  F16C19/186 ,  F16C2326/02 ,  C10N2210/02

摘要： Provided is a grease composition for a wheel bearing, containing (a) a base oil consisting of a mineral oil and a synthetic hydrocarbon oil, wherein the ratio of the synthetic hydrocarbon oil to the total amount of the mineral oil and the synthetic hydrocarbon oil is 40 to 60 mass %, and the base oil has a kinematic viscosity at 40° C. of 40 to 65 mm2/s; (b) a thickener of formula (A) wherein R2 is diphenylmethane, and R1 and R3, which may be the same or different from each other, each represent cyclohexyl group or a straight-chain or branched alkyl group having 16 to 20 carbon atoms, with a molar ratio of the cyclohexyl group to the total number of moles of the cyclohexyl group and the alkyl group being 50 to 90 mol %; (c) an amine type antioxidant; and (d) an amine phosphate type antiwear agent.

摘要翻译： 本发明提供了一种用于车轮轴承的润滑脂组合物，其包含（a）由矿物油和合成烃油组成的基础油，其中合成烃油与矿物油和合成烃油的总量的比例 为40〜60质量％，基础油在40℃下的运动粘度为40〜65mm 2 / s; （b）式（A）的增稠剂，其中R 2为二苯基甲烷，R 1和R 3可以相同或不同，分别表示环己基或直链或支链烷基，具有16〜 20个碳原子，环己基与环己基和烷基的总摩尔数的摩尔比由[（（环己基数）/（环己基数+烷基数 基团））×100]为50〜90摩尔％。 （c）胺型抗氧化剂; 和（d）磷酸胺型抗磨剂。