Patents by Inventor Jiro Yurimoto
Jiro Yurimoto has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
-
Patent number: 8492320Abstract: A lubricant composition which is suitable as a fluorine oil, fluorine grease, and which is excellent in stabilizability, as well as a lubricant composition which is suitable as a fluorine oil, fluorine grease, and which has excellent rust prevention properties while keeping a heat resistance.Type: GrantFiled: June 28, 2012Date of Patent: July 23, 2013Assignee: NOK Klueber Co., Ltd.Inventors: Tetsuhiro Miyamoto, Akihiko Shimura, Toshio Nitta, Jiro Yurimoto
-
Publication number: 20120264663Abstract: A lubricant composition which is suitable as a fluorine oil, fluorine grease, and which is excellent in stabilizability, as well as a lubricant composition which is suitable as a fluorine oil, fluorine grease, and which has excellent rust prevention properties while keeping a heat resistance.Type: ApplicationFiled: June 28, 2012Publication date: October 18, 2012Inventors: Tetsuhiro MIYAMOTO, Akihiko Shimura, Toshio Nitta, Jiro Yurimoto
-
Patent number: 8044003Abstract: A grease composition, which comprises (A) a perfluoropolyether base oil, (B) a thickener, and (C) barium sulfate and/or antimony oxide, where 0.1-50% by weight of the component (B) and 1-25% by weight of the component (C) are contained, has a distinguished effect on improvements of abrasion resistance, friction characteristics, load durability, high-temperature durability and corrosion resistance without any deterioration of heat resistance by adding at least one of barium sulfate and antimony oxide, each having an average primary particle size of 0.1-20 ?m, as component (C).Type: GrantFiled: October 26, 2006Date of Patent: October 25, 2011Assignee: NOK Kluber Co., Ltd.Inventors: Tetsuhiro Miyamoto, Akihiko Shimura, Tetsuhiro Kitahara, Jiro Yurimoto
-
Publication number: 20100305012Abstract: A lubricant composition which is suitable as a fluorine oil, fluorine grease, and which is excellent in stabilizability, as well as a lubricant composition which is suitable as a fluorine oil, fluorine grease, and which has an excellent rust prevention property while keeping a heat resistance.Type: ApplicationFiled: January 30, 2009Publication date: December 2, 2010Applicant: NOK Klueber Co., Ltd.Inventors: Tetsuhiro Miyamoto, Akihiko Shimura, Toshio Nitta, Jiro Yurimoto
-
Publication number: 20100256027Abstract: A grease composition, which comprises (A) a perfluoropolyether base oil, (B) a thickener, and (C) barium sulfate and/or antimony oxide, where 0.1-50% by weight of the component (B) and 1-25% by weight of the component (C) are contained, has a distinguished effect on improvements of abrasion resistance, friction characteristics, load durability, high-temperature durability and corrosion resistance without any deterioration of heat resistance by adding at least one of barium sulfate and antimony oxide, each having an average primary particle size of 0.1-20 ?m, as component (C).Type: ApplicationFiled: October 26, 2006Publication date: October 7, 2010Applicant: NOK KLUBER CO., LTD.Inventors: Tetsuhiro Miyamoto, Akihiko Shimura, Tetsuhiro Kitahara, Jiro Yurimoto
-
Publication number: 20100240557Abstract: A perfluoropolyether oil composition, which comprises a perfluoro-polyether base oil, preferably a thickener-containing perfluoropolyether base oil, and a fluorine-containing di- or mono-amide-based compound having a perfluoropolyether group, where 0.01 to 50% by weight of the amide-based compound, based on total weight of the base oil and the amide-based compound, is contained when the perfluoropolyether oil composition is used as a lubricating oil composition, particularly grease, and 0.01 to 90% by weight thereof is contained, when the perfluoropolyether oil composition is used as an electrode-coating agent for a cell. The perfluoropolyether oil composition shows a metal surface protective action against corrosive gases such as sulfide gases, etc. without deteriorating the abrasion resistance, and also shows a distinguished high temperature durability even in the presence of graphite or molybdenum disulfide.Type: ApplicationFiled: March 25, 2010Publication date: September 23, 2010Applicant: NOK KLUBER CO., LTD.Inventors: Yuji WATANABE, Yasumichi KIDO, You DOI, Miyuki HASHIDA, Toshio NITTA, Tatsuya HASHIMOTO, Akira OTANI, Jiro YURIMOTO
-
Publication number: 20080167208Abstract: A lubricant in the form of lubricating oil or grease, for use in contact with graphite or molybdenum disulfide or in contact with aluminum materials, which comprises a perfluoropolyether oil free from (CF2O)n groups as a repeat unit of polymer and having a kinetic viscosity at 40° C. of 50-1,500 mm2/sec., as a base oil, where F(CF2CF2CF2O)mC2F5 or RfO[CF(CF3)CF2O]p(CF2CF2O)qRf? s used as the perfluoropolyether base oil. The lubricant undergoes no considerable deterioration of high-temperature characteristics (high-temperature durability), even if used in various uses as mentioned above, and also has distinguished low-temperature characteristics when the base oil has a kinetic viscosity of 50-250 mm2/sec.Type: ApplicationFiled: February 17, 2006Publication date: July 10, 2008Inventors: Miyuki Hashida, Wataru Sawaguchi, Toshio Nitta, Tatsuya Hashimoto, Akihiko Shimura, Jiro Yurimoto
-
Publication number: 20080032904Abstract: A perfluoropolyether oil composition, which comprises a perfluoropolyether base oil, preferably a thickener-containing perfluoropolyether base oil, and a fluorine-containing di- or mono-amide-based compound having a perfluoropolyether group, where 0.01 to 50% by weight of the amide-based compound, based on total weight of the base oil and the amide-based compound, is contained when the perfluoropolyether oil composition is used as a lubricating oil composition, particularly grease, and 0.01 to 90% by weight thereof is contained, when the perfluoropolyether oil composition is used as an electrode-coating agent for a cell. The perfluoropolyether oil composition shows a metal surface protective action against corrosive gases such as sulfide gases, etc. without deteriorating the abrasion resistance, and also shows a distinguished high temperature durability even in the presence of graphite or molybdenum disulfide.Type: ApplicationFiled: August 30, 2005Publication date: February 7, 2008Inventors: Yuji Watanabe, Yasumichi Kido, You Doi, Miyuki Hashida, Toshio Nitta, Tatsuya Hashimoto, Akira Otani, Jiro Yurimoto
-
Patent number: 6905248Abstract: An electroconductive grease-filled bearing is a rolling bearing comprising an inner race 11 and an outer race 12, both of the races being coaxially provided, a plurality of steel balls 13 radially being retained between track surfaces of the races, the bearing rotatably supporting the edge of heating roll 6a in the fixing section of an electrostatic transfer copying machine, fixed to the inner periphery of inner race 11, an electroconductive grease to be filled between the track surfaces comprising a fluorocarbon oil as a base oil and graphite (or together with polytetrafluoroethylene) as a thickening agent. The electroconductive grease has a distinguished electroconductance so as to effectively discharge the static electricity, and has a distinguished heat-resistant durability even at elevated temperatures, and also prevents revolution failure due to the increased torque caused by an excessive lowering in the grease consistency, while maintaining the good electroconductance.Type: GrantFiled: October 17, 2003Date of Patent: June 14, 2005Assignee: NTN CorporationInventors: Chikara Katagiri, Kenichiro Naito, Atsushi Morooka, Hidenori Wakamatsu, Yasumichi Kido, You Doi, Jiro Yurimoto
-
Publication number: 20040081380Abstract: An electroconductive grease-filled bearing is a rolling bearing comprising an inner race 11 and an outer race 12, both of the races being coaxially provided, a plurality of steel balls 13 radially being retained between track surfaces of the races, the bearing rotatably supporting the edge of heating roll 6a in the fixing section of an electrostatic transfer copying machine, fixed to the inner periphery of inner race 11, an electroconductive grease to be filled between the track surfaces comprising a fluorocarbon oil as a base oil and graphite (or together with polytetrafluoroethylene) as a thickening agent. The electroconductive grease has a distinguished electroconductance so as to effectively discharge the static electricity, and has a distinguished heat-resistant durability even at elevated temperatures, and also prevents revolution failure due to the increased torque caused by an excessive lowering in the grease consistency, while maintaining the good electroconductance.Type: ApplicationFiled: October 17, 2003Publication date: April 29, 2004Inventors: Chikara Katagiri, Kenichiro Naito, Atsushi Morooka, Hidenori Wakamatsu, Yasumichi Kido, You Doi, Jiro Yurimoto