Patents Assigned to NOK Klueber Co., Ltd.
  • Publication number: 20230250355
    Abstract: A lubricant composition containing a base oil, an alkyl benzene sulfonate metal salt, and an alkyl naphthalene sulfonate metal salt, wherein a total content of the alkyl benzene sulfonate metal salt and the alkyl naphthalene sulfonate metal salt is 1 to 2.2% by mass, and a mass fraction of the alkyl benzene sulfonate metal salt to a total mass of the alkyl benzene sulfonate metal salt and the alkyl naphthalene sulfonate metal salt is 0.3 or more.
    Type: Application
    Filed: June 3, 2021
    Publication date: August 10, 2023
    Applicant: NOK KLUEBER CO., LTD.
    Inventors: Akihiko SHIMURA, Toshio NITTA, Keita NAKASHI
  • Patent number: 11718808
    Abstract: A lubricant composition for a resin-resin sliding portion or a resin-metal sliding portion that contains a base oil containing a perfluoropolyether oil including a side chain, and a polytetrafluoroethylene having a primary particle diameter of 1 ?m or larger and a melamine cyanurate as thickeners.
    Type: Grant
    Filed: June 17, 2020
    Date of Patent: August 8, 2023
    Assignee: NOK KLUEBER CO., LTD.
    Inventor: Ayumi Sakai
  • Publication number: 20220356411
    Abstract: A lubricant composition for a resin-resin sliding portion or a resin-metal sliding portion that contains a base oil containing a perfluoropolyether oil including a side chain, and a polytetrafluoroethylene having a primary particle diameter of 1 ?m or larger and a melamine cyanurate as thickeners.
    Type: Application
    Filed: June 17, 2020
    Publication date: November 10, 2022
    Applicant: NOK KLUEBER CO., LTD.
    Inventor: Ayumi SAKAI
  • Patent number: 11414616
    Abstract: A lubricating grease composition containing a base oil having a kinematic viscosity of 10 mm2/s or more and 60 mm2/s or less at 40° C.; a thickener containing at least one soap selected from a metal soap and a metal complex soap; and a solid lubricant containing porous polyamide particles. An amount of the porous polyamide particles blended is 1% by mass or more and 20% by mass or less based on a total mass of the lubricating grease composition.
    Type: Grant
    Filed: December 2, 2019
    Date of Patent: August 16, 2022
    Assignee: NOK KLUEBER CO., LTD.
    Inventor: Wataru Sawaguchi
  • Publication number: 20210403752
    Abstract: A sliding member includes a substrate, a first coating film layer which is provided on the substrate, and a second coating film layer which is provided on the first coating film layer. The first coating film layer including a coating film including a composition for a sliding member. The composition for a sliding member contains a binder resin, a solid lubricant, and at least one type of resin beads selected from the group consisting of amino resin beads and urethane resin beads. The second coating film layer includes the binder resin and the solid lubricant.
    Type: Application
    Filed: December 4, 2019
    Publication date: December 30, 2021
    Applicant: NOK KLUEBER CO., LTD.
    Inventor: Yujiro YAMASAKI
  • Publication number: 20210323378
    Abstract: A heat management system includes an outdoor heat exchanger that exchanges heat between a heat medium and outdoor air, a compressor that compresses the heat medium heat-exchanged by the outdoor heat exchanger, an indoor heat exchanger that exchanges heat between the heat medium compressed by the compressor and the indoor air, and an external device heat exchanger provided between the outdoor heat exchanger and the compressor, that exchanges heat between the heat generated by an external device and the heat medium.
    Type: Application
    Filed: November 12, 2019
    Publication date: October 21, 2021
    Applicants: NOK CORPORATION, NOK KLUEBER CO., LTD.
    Inventors: Atsushi KAJIYA, Kenji MINOSHIMA, Shoichi MAMIYA, Shinji ONISHI, Noriyuki OGAWA, Nobuaki YANAGISAWA
  • Patent number: 10907113
    Abstract: A lubricating grease composition includes a base oil, a thickener, and a solid lubricant, wherein the base oil is a synthetic hydrocarbon oil with a kinematic viscosity of 600 to 2000 mm2/s at 40° C., the thickener is a barium complex soap, and the solid lubricant is an inorganic fine particle with Mohs hardness of 3 to 6 and an average particle size of 10 to 40 ?m.
    Type: Grant
    Filed: February 4, 2019
    Date of Patent: February 2, 2021
    Assignees: NOK KLUEBER CO., LTD., DENSO CORPORATION
    Inventors: Wataru Sawaguchi, Yuta Miyagawa, Ryousuke Oguri
  • Patent number: 10899990
    Abstract: The present disclosure is related to provide a lubricating grease composition having a high static friction coefficient while maintaining excellent low-temperature torque characteristics, high-temperature shear stability, and high-temperature oil separation characteristics. A lubricating grease composition of the present disclosure contains a base oil, a thickener, and a solid lubricant, wherein the solid lubricant is calcium carbonate, the amount of the calcium carbonate blended is 1 to 60% by weight based on the total weight of the lubricating grease composition, the calcium carbonate has an average particle diameter of 0.1 to 30 ?m, the base oil has a kinematic viscosity of 18 to 300 mm2/s at 40° C., and the lubricating grease composition has a worked penetration of 240 to 320.
    Type: Grant
    Filed: February 7, 2019
    Date of Patent: January 26, 2021
    Assignee: NOK KLUEBER CO., LTD.
    Inventors: Wataru Sawaguchi, Kohei Matsumoto
  • Publication number: 20200332215
    Abstract: A lubricating grease composition containing a base oil having a kinematic viscosity of 10 mm2/s or more and 60 mm2/s or less at 40° C.; a thickener containing at least one soap selected from a metal soap and a metal complex soap; and a solid lubricant containing porous polyamide particles. An amount of the porous polyamide particles blended is 1% by mass or more and 20% by mass or less based on a total mass of the lubricating grease composition.
    Type: Application
    Filed: December 2, 2019
    Publication date: October 22, 2020
    Applicant: NOK KLUEBER CO., LTD.
    Inventor: Wataru SAWAGUCHI
  • Patent number: 10760027
    Abstract: A sliding member having a coating film and a method for forming a coating film, which can realize both of improvement in lubricity of the coating film by using a solid lubricant and improvement in adhesiveness of the coating film to a ground, and a method for forming a coating film.
    Type: Grant
    Filed: April 30, 2015
    Date of Patent: September 1, 2020
    Assignee: NOK KLUEBER CO., LTD.
    Inventor: Yujiro Yamasaki
  • Patent number: 10633612
    Abstract: A lubricant composition includes a base oil and melamine cyanurate. The base oil includes a perfluoropolyether oil having a straight chain structure. The lubricant composition is for one of a resin-resin sliding section and a resin-metal sliding section. A melamine cyanurate content is within a range of 1-20% by mass with respect to a sum of the base oil and melamine cyanurate.
    Type: Grant
    Filed: May 4, 2016
    Date of Patent: April 28, 2020
    Assignee: NOK Klueber Co., Ltd.
    Inventors: Akihiko Shimura, Yoshihito Tani, Toshio Nitta
  • Patent number: 10633608
    Abstract: A lubricant composition includes a perfluoropolyether as a base oil, a fluororesin as a thickener, and a polyol ester, a urea grease and a zinc dialkyldithiophosphate as additives, wherein a mass ratio of content of the perfluoropolyether to total content of the polyol ester and the urea grease ranges from 78/22 to 95/5, a mass ratio of content of the perfluoropolyether to content of the polyol ester ranges from 90/10 to 96.5/3.5, a mass ratio of content of the polyol ester to content of the urea grease ranges from 40/60 to 65/35, content of the fluororesin ranges from 15 mass % to 24 mass % based on a total amount of the lubricant composition, and content of the zinc dialkyldithiophosphate ranges from 0.5 mass % to 4 mass % based on the total amount of the lubricant composition.
    Type: Grant
    Filed: June 1, 2018
    Date of Patent: April 28, 2020
    Assignees: NOK KLUEBER CO., LTD., NSK LTD.
    Inventors: Takeshi Hishinuma, Keita Nakashi, Nobuaki Izawa, Miwa Komatsu
  • Patent number: 10479955
    Abstract: A lubricating grease composition for a resin member is used to be supplied as a lubricant on a surface of at least a sliding portion of a resin member including the sliding portion with an other member. The lubricating grease composition for a resin member contains a base oil which is a mixed oil of a poly-?-olefin having a kinetic viscosity at 40° C. of 18 to 50 mm2/s and an ethylene-?-olefin copolymer having a number average molecular weight of 40,000 to 200,000, a lithium-based complex soap as a thickener and a polytetrafluoroethylene resin as a solid lubricant having a mixing ratio of 4 to 12 mass % to the entire lubricating grease composition, wherein the base oil has a kinetic viscosity at 40° C. of 80 to 200 mm2/s and a worked penetration of the lubricating grease composition ranges from 265 to 340.
    Type: Grant
    Filed: September 21, 2017
    Date of Patent: November 19, 2019
    Assignee: Nok Klueber Co., Ltd.
    Inventors: Wataru Sawaguchi, Motoyuki Inai, Akira Shinozaki
  • Patent number: 10268133
    Abstract: This conductive roll includes: at least one elastic layer 12 including primarily a conductive rubber body and provided along the outer periphery of a core 11; and a coating layer 14 provided along the outer periphery of the elastic layer 12. The conductive roll satisfies the following expressions: circumference Sm1?135 ?m and circumference Sm1<circumference Sm2 wherein circumference Sm1 represents an average interval Sm of irregularities along the circumferential direction of the elastic layer 12, and circumference Sm2 represents an average interval Sm of irregularities along the circumferential direction of the coating layer 14.
    Type: Grant
    Filed: August 1, 2017
    Date of Patent: April 23, 2019
    Assignees: NOK CORPORATION, SYNZTEC CO., LTD., NOK KLUEBER CO., LTD.
    Inventors: Kousuke Oura, Hiroshi Ogura, Masaki Tahara
  • Publication number: 20190025727
    Abstract: This conductive roll includes: at least one elastic layer 12 including primarily a conductive rubber body and provided along the outer periphery of a core 11; and a coating layer 14 provided along the outer periphery of the elastic layer 12. The conductive roll satisfies the following expressions: circumference Sm1?135 ?m and circumference Sm1<circumference Sm2 wherein circumference Sm1 represents an average interval Sm of irregularities along the circumferential direction of the elastic layer 12, and circumference Sm2 represents an average interval Sm of irregularities along the circumferential direction of the coating layer 14.
    Type: Application
    Filed: August 1, 2017
    Publication date: January 24, 2019
    Applicants: NOK CORPORATION, SYNZTEC CO., LTD., NOK KLUEBER CO., LTD.
    Inventors: Kousuke OURA, Hiroshi OGURA, Masaki TAHARA
  • Patent number: 9777241
    Abstract: A composition for sliding member includes a binder resin, a solid lubricant, and an epoxy modified silicone oil having an epoxy group at both ends or at one end thereof. A weight ratio of the binder resin and the epoxy modified silicone oil is 97:3 to 75:25.
    Type: Grant
    Filed: March 1, 2013
    Date of Patent: October 3, 2017
    Assignee: NOK KLUEBER CO., LTD.
    Inventors: Yujiro Yamasaki, Masaki Tahara
  • Publication number: 20170211006
    Abstract: A sliding member having a coating film and a method for forming a coating film, which can realize both of improvement in lubricity of the coating film by using a solid lubricant and improvement in adhesiveness of the coating film to a ground, and a method for forming a coating film.
    Type: Application
    Filed: April 30, 2015
    Publication date: July 27, 2017
    Applicant: NOK Klueber Co., Ltd.
    Inventor: Yujiro YAMASAKI
  • Patent number: 9238784
    Abstract: A slide electricity structure according to the present invention uses grease for electrical contacts wherein contact resistance does not gradually increase even when exposed to sliding and lifetime is long, and has a silver-plated spring contact that contacts or separates by way of sliding and grease for electrical contacts that has been applied to the spring contact and contains perfluoropolyether oil having an average molecular weight between 2600 and 12500 as a base oil and PTFE having a primary particle diameter of 1 ?m or less as a thickener.
    Type: Grant
    Filed: April 26, 2012
    Date of Patent: January 19, 2016
    Assignees: Hitachi, Ltd., NOK Klueber Co., Ltd.
    Inventors: Takashi Sato, Kazuhiro Sato, Ayumu Morita, Kenji Tsuchiya, Takao Kanno, Toshio Nitta
  • Patent number: 8985279
    Abstract: Disclosed is a method for feeding a grease composition for grease-feeding to bearing units comprising 35 to 85 wt. % of fluorine-based grease and 65 to 15 wt. % of fluorine-based organic solvent; the method comprising jetting the grease composition into an inner portion of a bearing unit, such as a bearing for a conveyor chain having a grease-feeding hole, so as to feed the fluorine-based grease in an amount accounting for 10 to 45 volume % of the space volume in the bearing. According to the grease-feeding method, the grease composition for grease-feeding can be effectively applied to a bearing unit having a grease-feeding hole (nipple), thereby can be sufficiently supplied to a lubrication part, and allows grease-feeding without leakage from the bearing unit.
    Type: Grant
    Filed: March 7, 2011
    Date of Patent: March 24, 2015
    Assignee: NOK Klueber Co., Ltd.
    Inventors: Hidenori Wakamatsu, Yuki Ariga
  • Publication number: 20140086652
    Abstract: The present invention provides a fixation member which exhibits enhanced wear resistance and sliding property between the peripheral surface of the fixation member and a pressure member, which can reduce driving torque at a fixation unit, and which does not cause stick slipping even in a high-load operational mode, and a fixation apparatus having the fixation member. The fixation member employed in a fixation unit of the fixation apparatus has a metallic substrate having at least one layer of an electrocast seamless belt, and a slide layer disposed on the inner peripheral surface of the metallic substrate, wherein the slide layer is formed of at least one species of the group consisting of a polyamide-imide resin and a polyimide resin, and a fluororesin; the slide layer has a fluororesin content of 27.5 mass % to 50 mass %; and the slide layer has a surface roughness Ra of 0.4 ?m or less.
    Type: Application
    Filed: September 11, 2013
    Publication date: March 27, 2014
    Applicants: NOK CORPORATION, SYNZTEC CO., LTD., NOK KLUEBER CO., LTD.
    Inventors: Shingo SUGIYAMA, Masaya SUZUKI, Akira NISHIDA, Hitoshi OKABE, Tetsuhiro KITAHARA, Yujiro YAMASAKI