Patents Assigned to NOK
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Patent number: 10359114Abstract: A sealing device includes a seal ring 200 made of resin which is in close contact with a side wall surface on a low pressure side of an annular groove 410, and slides against an inner peripheral surface of a shaft hole in a housing 500 through which a shaft 400 is inserted. A metal spring 300 presses the seal ring 200 toward an outer peripheral surface side, wherein a concave portion 220 is formed on an outer peripheral surface of the seal ring 200 which extends from an end portion on a high pressure side of the outer peripheral surface to a position which does not reach an end portion on a low pressure side of the outer peripheral surface, and introduces a fluid from the high pressure side.Type: GrantFiled: August 17, 2017Date of Patent: July 23, 2019Assignee: NOK CORPORATIONInventors: Kazunari Seki, Koji Watanabe
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Patent number: 10352451Abstract: A sealing structure with a torsional damper and an oil seal includes a damper pulley serving as a torsional damper and an oil seal. The damper pulley has an annular hub pocket that is recessed in the outer side direction and extends in the circumferential direction along a boss part of a hub. The oil seal includes a side lip that extends toward the outer side. An outer circumferential surface of the hub pocket increases in a diameter toward the outer side, the side lip of the oil seal does not enter inside the hub pocket, and an annular gap is formed between an outer side end of the side lip and an inner side end of the outer circumferential surface of the hub pocket.Type: GrantFiled: May 30, 2017Date of Patent: July 16, 2019Assignee: NOK CORPORATIONInventors: Yusuke Kamiya, Hiroki Matsui, Shinya Omoto, Toru Nakashima, Hirotaka Mizuta
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Patent number: 10350799Abstract: The purpose of this invention is to make it easy to handle all-rubber gaskets. To achieve this purpose, a gasket is characterized in that a gasket body of only rubber is combined with a carrier film that is made from a resin film to hold the gasket body in a non-adhesive state. A three-dimensional portion having a shape that is deformed along the external shape of the gasket body is provided at a position where the gasket body and a plane of the carrier film overlap, and a portion of the gasket body is contained in the three-dimensional section. The gasket body is used as a gasket for fuel cells incorporated into a fuel cell stack.Type: GrantFiled: February 17, 2016Date of Patent: July 16, 2019Assignee: NOK CorporationInventors: Hidetoshi Saso, Yoshihiro Kurano, Takayuki Horimoto, Tetsuya Urakawa, Kenichi Oba, Takuro Nishimura, Hajime Yui, Takahiro Hayashi
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Patent number: 10352450Abstract: The invention provides a sealing device sealing so as to prevent a sealed fluid in a machine inner side from leaking to a machine outer side between a housing and a rotating shaft which is inserted to a shaft hole provided in the housing. The sealing device has a seal flange which is installed to an outer periphery of the rotating shaft, and a seal lip which is installed to an inner periphery of the shaft hole of the housing and slidably comes into contact with the seal flange over an entire periphery. The sealing device includes a thread groove which exerts a fluid pumping action when the rotating shaft rotates. The thread groove is provided at a position which does not intersect a contact area where the seal lip slidably comes into contact with the seal flange over the entire periphery, thereby suppressing generation of static leakage.Type: GrantFiled: June 9, 2015Date of Patent: July 16, 2019Assignee: NOK CorporationInventors: Satoshi Yamanaka, Norimasa Hosonuma, Maiko Kawamoto, Fangman Xu
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Patent number: 10344865Abstract: A sealing device has a seal ring, a first backup ring and a second backup ring. The first backup ring is formed into a triangular cross section while having an axially vertical end surface portion, a cylindrical peripheral surface portion, and an inclined surface portion intersecting the end surface portion and the peripheral surface portion. The second backup ring is formed into a triangular cross section while having an axially vertical end surface portion, a cylindrical peripheral surface portion, and an inclined surface portion in correspondence to the inclined surface portion of the first backup ring. A cut portion is provided in a corner portion where the end surface portion and the inclined surface portion in the first backup ring intersect, and a corner portion where the peripheral surface portion and the inclined surface portion in the second backup ring intersect.Type: GrantFiled: March 6, 2015Date of Patent: July 9, 2019Assignee: NOK CorporationInventors: Kota Henmi, Makoto Hatano, Shuji Yoshitsune
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Patent number: 10330202Abstract: A sealing device has a main lip sealing sealed fluid in a machine inside and a sub lip preventing intrusion of foreign materials in a machine outside, and structured such that both of the lips slidably come into contact with a peripheral surface of a shaft, wherein the sub lip is formed into a shape which is vertical to an axial direction or a shape which is directed to the main lip side, and a stepped shape is provided in the sub lip, the stepped shape unevenly distributing a generation position of a contact pressure peak in relation to the shaft in the sub lip. The sealing device can achieve both the shaft inserting property and the sealing performance in a sealing device having a main lip which seals sealed fluid in a machine inside, and a sub lip which seals foreign materials in a machine outside.Type: GrantFiled: February 26, 2016Date of Patent: June 25, 2019Assignee: NOK CORPORATIONInventor: Yuichi Tarukawa
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Patent number: 10326761Abstract: A system, apparatus, method, and machine readable medium are described for performing user authentication.Type: GrantFiled: May 15, 2017Date of Patent: June 18, 2019Assignee: Nok Nok Labs, Inc.Inventor: Ka Yang
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Patent number: 10309476Abstract: An object of the present invention is to provide an SBR composition for a torsional damper in which the SBR composition has a good physical property balance of high load-bearing properties, low CS properties, and the kneadability and roll processability of a rubber material, and to provide a torsional damper. The object is achieved in such a manner that the SBR composition for the torsional damper comprises at least: (a) an SBR polymer having a combined styrene content of 10 wt % to 50 wt %; (b) carbon black comprising FEF grade carbon black and HAF grade carbon black blended at a ratio of FEF:HAF=1:3 to 3:1; (c) a crosslinking system including sulfur, a sulfur-donating compound, and an organic peroxide compound; and (d) a co-crosslinking agent, wherein 60 parts by weight to 100 parts by weight of the carbon black as total parts by weight of the FEF grade carbon black and the HAF grade carbon black is blended based on 100 parts by weight of the SBR polymer, 0.4 part by weight to 2.Type: GrantFiled: October 27, 2015Date of Patent: June 4, 2019Assignee: NOK CORPORATIONInventor: Tetsuro Negami
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Patent number: 10293531Abstract: The object of the present invention is to effectively prevent the rust generation on a flange portion and to prevent the deformation of the flange portion due to the filling pressure of a molding material in the manufacture of a sealing device whereby a seal main body comprising a rubber-like elastic material and having a portion that covers both surfaces of the flange portion of a metal reinforcing ring is integrally formed on the reinforcing ring by means of a metal mold. To this end, the flange portion of the reinforcing ring is formed in advance with a shape which is distributed unevenly in the direction opposite the direction in which the flange portion is deformed from its original shape by the filling pressure of the molding material.Type: GrantFiled: June 24, 2014Date of Patent: May 21, 2019Assignee: NOK CorporationInventors: Takuya Kato, Go Kanzaki, Kei Sasaki, Naoto Kobayashi
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Patent number: 10294345Abstract: An object of the present invention is to provide an ethylene-acrylic rubber composition that is excellent in the compression set and also in the crosslinking bonding even when no secondary crosslinking is caused therein, an ethylene-acrylic rubber produced by causing primary crosslinking in the composition, a rubber metal composite formed by bonding the ethylene-acrylic rubber and a metal with each other, and a bonded piston sealing including the rubber metal composite.Type: GrantFiled: April 30, 2015Date of Patent: May 21, 2019Assignee: NOK CorporationInventor: Tomonori Furukawa
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Publication number: 20190145519Abstract: In a dust seal, reinforcing rings held in a housing are provided with a seal lip, a tip of which is brought into a close and slidable contact with the outer peripheral surface of a shaft inserted through a shaft hole in the housing so as to be movable back and forth in the axial direction and a plate spring biasing the seal lip toward the outer peripheral surface of the shaft to compensate for the tension force of the seal lip. In the dust seal, in order to prevent plastic deformation of the plate spring caused by axial eccentricity and secure excellent sealability, a guide ring supported by the reinforcing rings is disposed on the axial outside of the seal lip and the shaft inserted through the inner periphery is held concentrically with the reinforcing rings.Type: ApplicationFiled: April 20, 2017Publication date: May 16, 2019Applicant: NOK CORPORATIONInventor: Nobuyuki EGUCHI
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Patent number: 10288006Abstract: Provided is a metal gasket, which is capable of limiting localized decreases in contact pressure of the seal bead and of securing superior sealing over long periods. In order to achieve said purpose, the invention is a metal gasket, in which an opening that is open in the shape of the opening of the space to be sealed and a seal bead that extends along the perimeter of the opening are formed in a metal plate. The seal bead is one in which two or more portions from among half bead portions, fold-up bead portions and full bead portions are continuous with each other.Type: GrantFiled: April 15, 2013Date of Patent: May 14, 2019Assignee: NOK CorporationInventors: Yuji Nakamura, Nobutake Matsuki
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Patent number: 10280977Abstract: In an embodiment, a slide component includes a circular ring-shaped stationary-side seal ring 5 fixed to a stationary side and a circular ring-shaped rotating-side seal ring 3 rotating with a rotating shaft 1, and relatively rotates respective opposed sliding faces S of the stationary-side seal ring 5 and the rotating-side seal ring 3, thereby sealing a sealed fluid present on one side in a radial direction of the sliding face relatively rotating and sliding, wherein the sealed fluid is a silicate containing fluid; and on at least either one sliding face of the stationary-side seal ring 5 and the rotating-side seal ring 3, an amorphous carbon film 10 formed by using hydrocarbon gas not containing organosilicon compound gas in a plasma CVD method is laminated. The slide component can seal a silicate containing sealed fluid to which silicate is added.Type: GrantFiled: April 7, 2016Date of Patent: May 7, 2019Assignees: EAGLE INDUSTRY CO., LTD, NOK CORPORATIONInventors: Masatoshi Itadani, Kazumasa Sunagawa, Tetsuzo Okada, Keiichi Chiba, Kenji Kiryu, Akiko Koga
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Patent number: 10279518Abstract: A method for manufacturing a sealing device to improve the positioning accuracy of a parting operation while also improving manufacturing efficiency. The method includes molding an elastomeric cylindrical molded body (100a) with a plurality of cylindrical surface portions (130) and a plurality of annular outer peripheral convex portions (110) arranged alternately on an outer peripheral side thereof, and further provided with a plurality of cylindrical surface portions and a plurality of annular inner peripheral convex portions arranged alternately on an inner peripheral side thereof. The cylindrical surface portions on the outer peripheral side and the cylindrical surface portions on the inner peripheral side, as well as the outer peripheral convex portions and the inner peripheral convex portions are provided so as to be at the same positions in the axial direction.Type: GrantFiled: January 31, 2013Date of Patent: May 7, 2019Assignee: NOK CORPORATIONInventors: Hiroaki Sato, Akira Morio, Daihachi Shojima
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Patent number: 10282533Abstract: A system, apparatus, method, and machine readable medium are described for performing eye tracking during authentication. For example, one embodiment of a method comprises: receiving a request to authenticate a user; presenting one or more screen layouts to the user; capturing a sequence of images which include the user's eyes as the one or more screen layouts are displayed; and (a) performing eye movement detection across the sequence of images to identify a correlation between motion of the user's eyes as the one or more screen layouts are presented and an expected motion of the user's eyes as the one or more screen layouts are presented and/or (b) measuring the eye's pupil size to identify a correlation between the effective light intensity of the screen and its effect on the user's eye pupil size.Type: GrantFiled: February 20, 2018Date of Patent: May 7, 2019Assignee: Nok Nok Labs, Inc.Inventor: Rolf Lindemann
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Patent number: 10280869Abstract: A rubber-metal laminated gasket material comprising a metal plate, a surface treating agent layer, an adhesive layer, and a rubber layer, the layers being sequentially laminated on the metal plate; wherein the surface treating agent layer is formed by applying a surface treating agent so that the coating amount on one surface is 30 to 1,000 mg/m2, and the surface treating agent is free from chromium, has a mixing ratio of 20 to 90 wt. % of a fluorine-free titanium compound and 10 to 80 wt. % of alumina, and has a metal titanium content of 1 to 20 wt. %. The rubber-metal laminated gasket material has excellent LLC resistance under high temperature conditions.Type: GrantFiled: January 24, 2014Date of Patent: May 7, 2019Assignee: NOK CorporationInventors: Nobuaki Tanaka, Takeshi Sato, Katsumi Abe
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Publication number: 20190128423Abstract: A gasket is provided which is configured so that a gasket body is easily separated from a carrier film and the positional shift of the gasket body in stacking can be prevented. The gasket has a combination of a gasket body which contains only a rubber-like elastic body and which, in order to seal a gap between one member and the other member, is mounted in the other member and a carrier film separably stuck to one surface side in the thickness direction of the gasket body, in which an engagement portion is formed in the other surface in the thickness direction of the gasket body at a position corresponding to a portion to be engaged formed in the other member, and the gasket body is mounted in the other member by engagement of the engagement portion and the portion to be engaged.Type: ApplicationFiled: March 30, 2017Publication date: May 2, 2019Applicant: NOK CORPORATIONInventors: Hajime YUI, Kenichi OBA, Takuro NISHIMURA
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Patent number: 10274890Abstract: Provided is a cleaning blade having an elastic body that is a molding of a rubber substrate and having at least a surface-treatment layer at a position that contacts a contact-receiving site on the elastic body. The surface-treatment layer contains a cured product from an isocyanate group reaction product of a difunctional isocyanate compound with a difunctional polyol and a trifunctional polyol wherein the molar ratio of the difunctional polyol to the trifunctional polyol (difunctional/trifunctional) is 50/50 to 95/5. The cured product reacts via the isocyanate group with the polymer forming the elastic body, and the surface-treatment layer has a thickness of at least 10 ?m and not more than 100 ?m.Type: GrantFiled: December 22, 2016Date of Patent: April 30, 2019Assignee: NOK CORPORATIONInventors: Natsumi Kimura, Katsumi Abe
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Patent number: 10270748Abstract: A system, apparatus, method, and machine readable medium are described for performing advanced authentication techniques and associated applications. For example, one embodiment of a method comprises: receiving a policy identifying a set of acceptable authentication capabilities; determining a set of client authentication capabilities; and filtering the set of acceptable authentication capabilities based on the determined set of client authentication capabilities to arrive at a filtered set of one or more authentication capabilities for authenticating a user of the client.Type: GrantFiled: March 18, 2014Date of Patent: April 23, 2019Assignee: Nok Nok Labs, Inc.Inventors: Marc Briceno, Brendon Wilson, Ramesh Kesanupalli, Davit Baghdasaryan, Rajiv Dholakia, William J. Blanke, Rolf Lindemann, Igor Polivanyi, Avinash Umap
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Patent number: 10267378Abstract: A sealing structure allows for formation of a labyrinth structure between an oil seal and a torsional vibration damper even when the oil seal does not include a side lip. The oil seal 100 includes an oil lip 121 provided such as to be slidable on an outer circumferential surface of a tubular part 210, and a dust lip 122 provided further on an air side (A) than the oil lip 121 and slidable on the outer circumferential surface of the tubular part 210. An annular member 250 is further provided, which is fixed to the outer circumferential surface of the tubular part 210 further on the air side (A) than the dust lip 122 and covering an outer circumferential surface of the dust lip 122 such that there is a gap between the annular member 250 itself and the outer circumferential surface of the dust lip 122.Type: GrantFiled: August 7, 2015Date of Patent: April 23, 2019Assignee: NOK CORPORATIONInventors: Yusuke Kamiya, Hiroki Matsui, Shinya Omoto, Toru Nakashima