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1. 发明申请

US20230140565A1 RUBBER-METAL LAMINATE AND GASKET 有权
公开(公告)号：US20230140565A1
公开(公告)日：2023-05-04
申请号：US17912322
申请日：2021-02-24
申请人： NOK CORPORATION
发明人： Isao WATANABE , Ryota SHIMURA , Daiki TAKEKAWA
IPC分类号： B32B15/06 , B32B7/12 , B32B25/14
摘要： A rubber-metal laminate that includes a metal member; and a rubber layer provided on the metal member, wherein the rubber layer has a 100%-modulus value in accordance with JIS K6251 of 8.5 MPa or more and a thickness of 80 μm or more. A gasket that includes the rubber-metal laminate.

2. 发明申请

US20230097137A1 ACRYLIC RUBBER COMPOSITION 有权
公开(公告)号：US20230097137A1
公开(公告)日：2023-03-30
申请号：US17794711
申请日：2020-12-23
申请人： NOK CORPORATION
发明人： Keita OTANI , Takahiro ANZAI
IPC分类号： C08F220/10 , C08K5/10 , C08L33/14
摘要： An acrylic rubber composition comprising 5 to 15 parts by weight of a plasticizer having a solubility parameter SP value (by Small's method) of 8.5 to 10.5 based on 100 parts by weight of super cold resistant grade acrylic rubber having a glass transition point Tg of −42° C. or less, wherein the acrylic rubber composition can give a vulcanizate with the TR10 value, which is an index of cold resistance, of −42° C. or less both initially and after oil dipping. In the acrylic rubber composition, first, the ratio of an acrylate monomer that constitutes acrylic rubber is adjusted, thereby the low temperature characteristics can be maintained even in an oil contact environment. This intentionally reduces the oil resistance of the vulcanized rubber molded product, thereby increasing the amount of oil swelling into the vulcanized rubber molded product and improving the flexibility in a low temperature environment.

3. 发明授权

US11614169B2 Seal ring 有权
公开(公告)号：US11614169B2
公开(公告)日：2023-03-28
申请号：US16965162
申请日：2019-08-09
申请人： NOK CORPORATION
发明人： Yusuke Yoshida
IPC分类号： F16J15/32 , F16J15/3272 , F16J15/3204 , F16J15/44 , F16J15/3216
摘要： A seal ring has, on an outer peripheral surface side thereof, a pair of recessed parts 140 extending in a circumferential direction on both sides in a width direction thereof to form a projection part 120 between the pair of recessed parts 140, and has a plurality of ribs 130 connected to the projection part 120 and extending to lateral surfaces of the seal ring at intervals in the circumferential direction inside the pair of recessed parts 140, and a plurality of ribs 130 arranged on a sealed region side among the plurality of ribs 130 have lateral-wall surfaces on an upstream side in a relative rotation direction of a housing with respect to a shaft, each of the lateral-wall surfaces having inclined surfaces inclined from the upstream side to a downstream side in the relative rotation direction of the housing from the projection part 120 toward the lateral surfaces of the seal ring.

4. 发明申请

US20230089005A1 SEALING DEVICE AND GEAR REDUCER 有权
公开(公告)号：US20230089005A1
公开(公告)日：2023-03-23
申请号：US17908085
申请日：2021-02-18
申请人： NOK CORPORATION
发明人： Saki ITO
IPC分类号： F16J15/18 , F16J15/3232
摘要： A sealing device acts to seal a gap between a housing of a gear reducer and a rotational shaft that bi-directionally rotates, and separates an internal space of the housing in which a grease is stored from an atmosphere side. The sealing device includes a main seal lip protruding radially inward from an inner peripheral surface of an inner cylindrical portion. The main seal lip has an internal-side inclined surface disposed on a side of the internal space and an atmosphere-side inclined surface disposed on the atmosphere side. An auxiliary seal lip protrudes radially inward and toward the internal space from the internal-side inclined surface of the main seal lip. Multiple first spiral structures and multiple second spiral structures are formed on at least one of the atmosphere-side inclined surface of the main seal lip and an inner peripheral surface of the auxiliary seal lip.

5. 发明申请

US20230086938A1 FLAME-RETARDANT RUBBER COMPOSITION 有权
公开(公告)号：US20230086938A1
公开(公告)日：2023-03-23
申请号：US17795183
申请日：2021-01-13
申请人： NOK CORPORATION
发明人： Akihiro SUZUKI , Makoto NOGUCHI
IPC分类号： C08F210/18 , C08F210/06 , C08F210/08 , C08K3/22 , C08K9/06 , C08K5/14 , C08K5/5425
摘要： A flame-retardant rubber composition is provided which is excellent in flame retardancy and rubber properties and reduces environmental load. The flame-retardant rubber composition comprises an ethylene/α-olefin/non-conjugated diene copolymer, a hydrated metal oxide, a silane coupling agent, a plasticizer, and a cross-linking agent, wherein a carbon number of the α-olefin of the ethylene/α-olefin/non-conjugated diene copolymer is three and more, and 180 to 350 parts by mass of the hydrated metal oxide and 10 to 60 parts by mass of the plasticizer are included per 100 parts by mass of the ethylene/α-olefin/non-conjugated diene copolymer.

6. 发明申请

US20230074523A1 PARTICLE ANALYSIS DEVICE 有权
公开(公告)号：US20230074523A1
公开(公告)日：2023-03-09
申请号：US17798187
申请日：2021-02-02
申请人： NOK CORPORATION
发明人： Takumi YOSHITOMI , Yuki MUROTA , Naohiro FUJISAWA , Kosuke SATO , Yuto TOKI
IPC分类号： G01N27/447 , G01N15/10 , B01L3/00
摘要： A particle analysis device includes multiple stacked plates joined together; an upper liquid space adapted to store a first liquid; a lower liquid space adapted to store a second liquid; a connection pore connecting the upper liquid space to the lower liquid space; a first hole extending from the top surface to the upper liquid space, the first liquid flowing through the first hole; and a second hole extending from the top surface to the lower liquid space, the second liquid flowing through the second hole. A first electrode and a second electrode that are sheets are pinched between two of the plates. The first electrode applies an electric potential to the first liquid in the upper liquid space through the first hole, whereas the second electrode applies an electric potential to the second liquid in the lower liquid space through the second hole. The particle analysis device further includes a first electrode-rod-insertion hole extending from the top surface to the first electrode, and a second electrode-rod-insertion hole extending from the top surface to the second electrode. The first electrode and the second electrode are not exposed at any side surface of the particle analysis device.

7. 发明申请

US20230073538A1 GASKET 有权
公开(公告)号：US20230073538A1
公开(公告)日：2023-03-09
申请号：US17799015
申请日：2021-02-03
申请人： NOK CORPORATION
发明人： Isao WATANABE , Ryota SHIMURA , Daiki TAKEKAWA
IPC分类号： F16J15/12 , F16F15/08
摘要： A gasket includes an elastic part containing a rubber having a dynamic spring constant of 1.5 g/μm or lower as measured under conditions of 23±2° C., 100 Hz, and a strain amplitude of 0.1% according to JIS K6394:2007.

8. 发明授权

US11598366B2 Dust cover and sealing structure 有权
公开(公告)号：US11598366B2
公开(公告)日：2023-03-07
申请号：US15776288
申请日：2016-11-01
申请人： NOK CORPORATION
发明人： Takuma Hirota
IPC分类号： F16C11/06 , F16J3/04 , F16J15/3204 , F16J15/52
摘要： A dust cover and a sealing structure for improving sealing performance by stabilizing a posture of a seal section. A seal section 130 includes: an inner peripheral seal part 131 which is slidable with respect to an outer peripheral surface of a shaft part 310; a dust lip part 132 which is slidable with respect to an end surface of a first flange part 340; and an auxiliary dust lip part 133 provided on an radially inner side of the dust lip part 132, and the auxiliary dust lip part 133 is configured to be slidable with respect to a curved surface 310a which connects the shaft part 310 and the first flange part 340 to each other.

9. 发明申请

US20230069007A1 BIOLOGICAL ELECTRODE 有权
公开(公告)号：US20230069007A1
公开(公告)日：2023-03-02
申请号：US17796944
申请日：2021-01-12
申请人： NOK CORPORATION
发明人： Masayuki KUBO , Ryo FUTASHIMA
IPC分类号： A61B5/268 , A61B5/274
摘要： A biological electrode that includes an electrode member made of a conductive rubber having a plurality of electrode portions in contact with a body of a subject. The plurality of electrode portions are protrusively formed on an electrode portion forming surface of the electrode member and arranged circularly or concentrically on the electrode portion forming surface. Further, each of the plurality of electrode portions is formed so that a cross-sectional area thereof gradually decreases from a proximal end portion thereof toward a distal end portion thereof and a center of a cross section of the distal end portion is positioned radially outward of a center of a cross section of the proximal end portion as viewed from an arrangement center of the plurality of electrode portions.

10. 发明申请

US20230049995A1 VIBRATION-PROOF BUSH 有权
公开(公告)号：US20230049995A1
公开(公告)日：2023-02-16
申请号：US17790185
申请日：2021-03-17
申请人： NOK CORPORATION
发明人： Yoshihisa RYU
IPC分类号： B60K17/24 , F16F15/124 , F16F15/121
摘要： A vibration-proof bush capable of suppressing incomplete fitting of an upper bush and a lower bush. The vibration-proof bush includes an upper bush configured to be mounted on a vehicle body side and a lower bush configured to be fitted to the upper bush are provided, wherein the vibration-proof bush includes interference portions configured to interfere with each other in a process of fitting the lower bush to the upper bush, and the interference portions form a fitting-sound generation structure in which a sound is generated, when the lower bush is fitted to the upper bush during temporary assembling.

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