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公开(公告)号：US11932823B2
公开(公告)日：2024-03-19
申请号：US17601828
申请日：2020-04-10
申请人： KYB Corporation
发明人： Shinji Kato
IPC分类号： C10M137/10 , C07F9/165 , C10M169/04 , F16F9/32 , C10N40/08
CPC分类号： C10M137/10 , C07F9/1658 , C10M169/04 , F16F9/3278 , B60G2202/24 , B60G2206/70 , C10M2203/003 , C10M2223/045 , C10N2040/08 , F16F2222/12 , F16F2224/04 , F16F2230/04
摘要： To provide a lubricant composition for shock absorbers, a friction adjusting additive for a lubricant for shock absorbers, and a lubricant additive, each capable of satisfying both operational stability and ride comfort and improving the ride comfort further. The lubricant composition for shock absorbers contains a base oil and a friction adjusting agent and the friction adjusting agent contains a first zinc dithiophosphate represented by the following formula 1:
[in the formula 1, R11 to R14 are alkyl groups in which one or more and three or less is/are a primary alkyl group and the other(s) is/are a secondary alkyl group].-
公开(公告)号：US12085139B2
公开(公告)日：2024-09-10
申请号：US17766508
申请日：2020-07-03
申请人： KYB Corporation
发明人： Shinji Kato
IPC分类号： F16F9/32 , C10M125/24 , C10M129/74
CPC分类号： F16F9/3278 , C10M125/24 , C10M129/74 , C10M2201/085 , C10M2207/282 , F16F2230/04
摘要： To provide a lubricant composition for shock absorbers, a shock absorber, and a method for adjusting the friction of a lubricant composition for shock absorbers, each capable of satisfying both operational stability and ride comfort particularly at the time of a minute amplitude. The lubricant composition for shock absorbers contains a base oil and a friction adjusting agent, wherein the friction adjusting agent contains a pentaerythritol ester, the pentaerythritol ester contains a pentaerythritol tetraester at the highest proportion or in an amount of 50 mass % or more, and the pentaerythritol ester content is 0.5 mass % or more.
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公开(公告)号：US12054687B2
公开(公告)日：2024-08-06
申请号：US17919810
申请日：2021-03-16
申请人： KYB Corporation
发明人： Shinji Kato
IPC分类号： C10M129/74 , B60G13/08 , C10M129/76 , C10M169/04 , F16F9/32 , C10N40/08
CPC分类号： C10M129/74 , B60G13/08 , C10M129/76 , C10M169/04 , F16F9/3278 , B60G2202/24 , B60G2800/162 , C10M2203/003 , C10M2207/283 , C10M2207/289 , C10N2040/08 , F16F2222/04 , F16F2230/04
摘要： Provided are a lubricant composition for shock absorbers, a lubricant additive, and a method of adjusting friction characteristics of a lubricant composition for shock absorbers, each capable of satisfying both the operational stability and ride comfort. The lubricant composition for shock absorbers contains a base oil and a friction adjusting agent, the friction adjusting agent contains pentaerythritol esters, and the pentaerythritol esters contain a pentaerythritol tetraester and a pentaerythritol ester other than the pentaerythritol tetraester.
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公开(公告)号：US20220204882A1
公开(公告)日：2022-06-30
申请号：US17601828
申请日：2020-04-10
申请人： KYB Corporation
发明人： Shinji Kato
IPC分类号： C10M137/10 , C10M169/04 , C07F9/165 , F16F9/32
摘要： To provide a lubricant composition for shock absorbers, a friction adjusting additive for a lubricant for shock absorbers, and a lubricant additive, each capable of satisfying both operational stability and ride comfort and improving the ride comfort further. The lubricant composition for shock absorbers contains a base oil and a friction adjusting agent and the friction adjusting agent contains a first zinc dithiophosphate represented by the following formula 1: [in the formula 1, R11 to R14 are alkyl groups in which one or more and three or less is/are a primary alkyl group and the other(s) is/are a secondary alkyl group].
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公开(公告)号：US20180017160A1
公开(公告)日：2018-01-18
申请号：US15546718
申请日：2016-02-03
申请人： KYB Corporation
CPC分类号： F16J9/26 , C08J5/04 , C08J5/042 , F15B15/1428 , F15B15/1452 , F16J9/28 , F16J15/166 , F16J15/3284
摘要： Problem: Provided is a sealing device which has reduced wear of a metallic member in sliding portions having electric-resistance welded carbon steel and a fiber reinforced resin member. Means for resolution: A sealing device having a mechanism in which a metallic member and a resin member relatively slide, wherein the metallic member is formed from electric-resistance welded carbon steel, and the resin member is formed from a carbon-fiber reinforced synthetic resin.
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公开(公告)号：US20210380897A1
公开(公告)日：2021-12-09
申请号：US17285175
申请日：2019-12-24
申请人： KYB Corporation
发明人： Shinji Kato
IPC分类号： C10M137/10 , C10M169/04 , C10M129/08
摘要： To provide a lubricating oil composition for a shock absorber, an additive for friction adjustment, a lubricating oil additive, a shock absorber, and a method for adjusting friction of a shock absorber lubricating oil, capable of achieving both operation stability and riding comfort. A lubricating oil composition for a shock absorber contains a base oil and a friction adjusting agent, in which the friction adjusting agent contains zinc dithiophosphate and pentaerythritol.
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公开(公告)号：US11993757B2
公开(公告)日：2024-05-28
申请号：US17285175
申请日：2019-12-24
申请人： KYB Corporation
发明人： Shinji Kato
IPC分类号： C10M141/10 , C10M169/04 , C10N10/04 , C10N30/06 , C10N40/08
CPC分类号： C10M141/10 , C10M169/04 , C10M2207/022 , C10M2207/283 , C10M2223/045 , C10N2010/04 , C10N2030/06 , C10N2040/08 , C10M2223/045 , C10N2010/04
摘要： To provide a lubricating oil composition for a shock absorber, an additive for friction adjustment, a lubricating oil additive, a shock absorber, and a method for adjusting friction of a shock absorber lubricating oil, capable of achieving both operation stability and riding comfort. A lubricating oil composition for a shock absorber contains a base oil and a friction adjusting agent, in which the friction adjusting agent contains zinc dithiophosphate and pentaerythritol.
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8.发明公开公开(公告)号：US20240084869A1
公开(公告)日：2024-03-14
申请号：US17766508
申请日：2020-07-03
申请人： KYB Corporation
发明人： Shinji Kato
IPC分类号： F16F9/32 , C10M125/24 , C10M129/74
CPC分类号： F16F9/3278 , C10M125/24 , C10M129/74 , C10M2201/085 , C10M2207/282 , F16F2230/04
摘要： To provide a lubricant composition for shock absorbers, a shock absorber, and a method for adjusting the friction of a lubricant composition for shock absorbers, each capable of satisfying both operational stability and ride comfort particularly at the time of a minute amplitude. The lubricant composition for shock absorbers contains a base oil and a friction adjusting agent, wherein the friction adjusting agent contains a pentaerythritol ester, the pentaerythritol ester contains a pentaerythritol tetraester at the highest proportion or in an amount of 50 mass % or more, and the pentaerythritol ester content is 0.5 mass % or more.
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9.发明公开公开(公告)号：US20230313064A1
公开(公告)日：2023-10-05
申请号：US18010601
申请日：2021-06-15
申请人： KYB Corporation
发明人： Shinji Kato
IPC分类号： C10M129/74 , C10M169/04 , C10M129/76
CPC分类号： C10M129/74 , C10M129/76 , C10M169/04 , C10M2203/003 , C10M2207/2835 , C10N2040/08
摘要： Provided are a lubricant composition for shock absorbers, a lubricant additive, and a method of adjusting frictional property of a lubricant composition for shock absorbers, each capable of satisfying both the steering stability and ride comfort. The lubricant composition for shock absorbers contains a base oil and pentaerythritol esters and having frictional property represented by the following formula (1):
RI
>
1
.75
×
F
ave
-
0
.05
(1)
supposing that a ratio ({Fsa - Fave} / Fave) of a difference, at the time of minute amplitude, between a peak frictional force Fsa in transition from a stationary state to a sliding state and an average frictional force Fave to the average frictional force Fave at the time of minute amplitude is responsiveness RI.-
10.发明公开公开(公告)号：US20230159845A1
公开(公告)日：2023-05-25
申请号：US17919810
申请日：2021-03-16
申请人： KYB Corporation
发明人： Shinji Kato
IPC分类号： C10M129/74 , C10M169/04 , C10M129/76 , B60G13/08 , F16F9/32
CPC分类号： C10M129/74 , C10M169/04 , C10M129/76 , B60G13/08 , F16F9/3278 , C10M2203/003 , C10M2207/283 , C10M2207/289 , C10N2040/08
摘要： Provided are a lubricant composition for shock absorbers, a lubricant additive, and a method of adjusting friction characteristics of a lubricant composition for shock absorbers, each capable of satisfying both the operational stability and ride comfort. The lubricant composition for shock absorbers contains a base oil and a friction adjusting agent, the friction adjusting agent contains pentaerythritol esters, and the pentaerythritol esters contain a pentaerythritol tetraester and a pentaerythritol ester other than the pentaerythritol tetraester.
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