Patents by Inventor Yuji Shitara
Yuji Shitara 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).
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Patent number: 11702608Abstract: A lubrication method including lubricating a sliding member which contains at least one selected from the group consisting of a liquid crystal polymer and polyetheretherketone by using a lubricating oil composition which contains an ester as a lubricating base oil.Type: GrantFiled: July 30, 2019Date of Patent: July 18, 2023Assignee: ENEOS CORPORATIONInventors: Yuji Shitara, Yohei Shono, Hidetoshi Ogata, Kazushi Kodama, Hiroshi Matsuura, Satoshi Masuyama
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Patent number: 11326118Abstract: A lubrication method including lubricating a sliding member which contains at least one selected from the group consisting of a liquid crystal polymer and polyetheretherketone by using a lubricating oil composition which contains at least one selected from the group consisting of a mineral oil and alkyl benzene as a lubricating base oil.Type: GrantFiled: July 30, 2019Date of Patent: May 10, 2022Assignee: ENEOS CORPORATIONInventors: Yuji Shitara, Yohei Shono, Hidetoshi Ogata, Kazushi Kodama, Hiroshi Matsuura, Satoshi Masuyama
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Publication number: 20210269731Abstract: A lubrication method including lubricating a sliding member which contains at least one selected from the group consisting of a liquid crystal polymer and polyetheretherketone by using a lubricating oil composition which contains an ester as a lubricating base oil.Type: ApplicationFiled: July 30, 2019Publication date: September 2, 2021Applicant: ENEOS CorporationInventors: Yuji SHITARA, Yohei SHONO, Hidetoshi OGATA, Kazushi KODAMA, Hiroshi MATSUURA, Satoshi MASUYAMA
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Publication number: 20210269730Abstract: A lubrication method including lubricating a sliding member which contains at least one selected from the group consisting of a liquid crystal polymer and polyetheretherketone by using a lubricating oil composition which contains at least one selected from the group consisting of a mineral oil and alkyl benzene as a lubricating base oil.Type: ApplicationFiled: July 30, 2019Publication date: September 2, 2021Applicant: ENEOS CorporationInventors: Yuji SHITARA, Yohei SHONO, Hidetoshi OGATA, Kazushi KODAMA, Hiroshi MATSUURA, Satoshi MASUYAMA
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Patent number: 10870812Abstract: A surface protection composition which is hard to deform or flow even placed under environments of a large temperature change with an external physical load such as pressure, and which stably protects a metal surface. A terminal fitted electric wire coated with the composition. The surface protection composition contains a high-consistency material (A) containing a lubricant base oil and an amide compound, and a phosphorus composition (B). The phosphorus composition (B) contains a composition (b1) containing one or more compounds represented by the general formulae (1) and (2) and one or more metals and/or one or more amines. The phosphorus composition (B) also contains one or more compounds (b2) represented by the general formula (3).Type: GrantFiled: March 8, 2017Date of Patent: December 22, 2020Assignees: AUTONETWORKS TECHNOLOGIES, LTD., SUMITOMO WIRING SYSTEMS, LTD., SUMITOMO ELECTRIC INDUSTRIES, LTD., KYUSHU UNIVERSITY, ENEOS CORPORATIONInventors: Naoyuki Oshiumi, Takehiro Hosokawa, Kohei Kobayashi, Tetsuya Nakamura, Tatsuya Hase, Yutaka Takata, Makoto Mizoguchi, Koichi Yoshida, Kenichi Komiya, Yuji Shitara, Kazuhiro Yagishita
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Patent number: 10858609Abstract: An anticorrosive agent including: a high-consistency material having a lubricant base oil and an amide compound, a composition of a phosphorus compound comprising one or more compounds represented by the general formulae (1) and (2) and a metal, and at least one kind of resin selected from a rosin-based resin, a terpene resin, a terpene phenol resin, a phenol resin, a coumarone-indene resin, and a petroleum resin, wherein a mass ratio of the high-consistency material and the composition is within a range of 50:50 to 98:2, and a content of resin is 2 to 20 parts by mass with respect to 100 parts by mass of the total of the high-consistency material and the composition.Type: GrantFiled: December 21, 2016Date of Patent: December 8, 2020Assignees: AUTONETWORKS TECHNOLOGIES, LTD., SUMITOMO WIRING SYSTEMS, LTD., SUMITOMO ELECTRIC INDUSTRIES, LTD., KYUSHU UNIVERSITY, ENEOS CORPORATIONInventors: Yutaka Takata, Takehiro Hosokawa, Tatsuya Hase, Naoyuki Oshiumi, Takuya Yamashita, Makoto Mizoguchi, Koichi Yoshida, Kenichi Komiya, Takashi Arai, Yuji Shitara, Kazuhiro Yagishita
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Publication number: 20190106652Abstract: A surface protection composition stably protecting a metal surface even at a high temperature, and a terminal-fitted electric wire improved in anticorrosion property by using the composition. The surface protection composition contains a high-consistency material (A) containing a lubricant base oil and an amide compound, and a composition (B) containing a phosphorus compound containing one or more compounds represented by the general formulae (1) and (2) and a metal. The mass ratio (A):(B) of the high-consistency material (A) to the composition (B) is within a range of 50:50 to 98:2. The lubricant base oil has a kinematic viscosity of 10 mm2/s or higher at 100° C.Type: ApplicationFiled: March 8, 2017Publication date: April 11, 2019Applicants: AUTONETWORKS TECHNOLOGIES, LTD., SUMITOMO WIRING SYSTEMS, LTD., SUMITOMO ELECTRIC INDUSTRIES, LTD., KYUSHU UNIVERSITY, JXTG NIPPON OIL & ENERGY CORPORATIONInventors: Yutaka TAKATA, Takehiro HOSOKAWA, Tatsuya HASE, Naoyuki OSHIUMI, Takuya YAMASHITA, Makoto MIZOGUCHI, Koichi YOSHIDA, Kenichi KOMIYA, Yuji SHITARA, Kazuhiro YAGISHITA
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Publication number: 20190093042Abstract: A surface protection composition which is hard to deform or flow even placed under environments of a large temperature change with an external physical load such as pressure, and which stably protects a metal surface. A terminal fitted electric wire coated with the composition. The surface protection composition contains a high-consistency material (A) containing a lubricant base oil and an amide compound, and a phosphorus composition (B). The phosphorus composition (B) contains a composition (b1) containing one or more compounds represented by the general formulae (1) and (2) and one or more metals and/or one or more amines. The phosphorus composition (B) also contains one or more compounds (b2) represented by the general formula (3).Type: ApplicationFiled: March 8, 2017Publication date: March 28, 2019Applicants: AUTONETWORKS TECHNOLOGIES, LTD., SUMITOMO WIRING SYSTEMS, LTD., SUMITOMO ELECTRIC INDUSTRIES, LTD., KYUSHU UNIVERSITY, JXTG NIPPON OIL & ENERGY CORPORATIONInventors: Naoyuki OSHIUMI, Takehiro HOSOKAWA, Kohei KOBAYASHI, Tetsuya NAKAMURA, Tatsuya HASE, Yutaka TAKATA, Makoto MIZOGUCHI, Koichi YOSHIDA, Kenichi KOMIYA, Yuji SHITARA, Kazuhiro YAGISHITA
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Publication number: 20190048283Abstract: An anticorrosive agent stably protecting a metal surface with maintaining an anticorrosion property at a high temperature, and a terminal-fitted electric wire improved in anticorrosion property by using the agent. The anticorrosive agent contains a high-consistency material (A) containing a lubricant base oil and an amide compound, a composition (B) of a phosphorus compound containing one or more compounds represented by the general formulae (1) and (2) and a metal, and an azole (C). The mass ratio (A):(B) of the high-consistency material (A) and the composition (B) is within a range of 50:50 to 98:2. The content of the azole (C) is 0.5 to 20 parts by mass with respect to 100 parts by mass of the total of (A) and (B).Type: ApplicationFiled: September 14, 2016Publication date: February 14, 2019Inventors: Yutaka TAKATA, Takehiro HOSOKAWA, Tatsuya HASE, Naoyuki OSHIUMI, Makoto MIZOGUCHI, Koichi YOSHIDA, Kenichi KOMIYA, Takashi ARAI, Yuji SHITARA, Kazuhiro YAGISHITA
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Patent number: 10196529Abstract: A metal surface coating composition including a high-consistency material containing a lubricant base oil and an amide compound, and a composition of a phosphorus compound containing one or more compounds represented by the below formulae and a metal, wherein the ratio (a/b) of the number of amide groups (a) and the number of acidic groups (b) is within a range of 1.1 to 6.0: where X1 to X7 represent an oxygen atom or a sulfur atom, R11 to R13 represent a hydrogen atom or a hydrocarbon group having 1 to 30 carbon atoms, wherein at least one of them is a hydrocarbon group having 1 to 30 carbon atoms, and R14 to R16 represent a hydrogen atom or a hydrocarbon group having 1 to 30 carbon atoms wherein at least one of them is a hydrocarbon group having 1 to 30 carbon atoms.Type: GrantFiled: May 23, 2016Date of Patent: February 5, 2019Assignees: AutoNetworks Technologies, Ltd., Sumitomo Wiring Systems, Ltd., SUMITOMO ELECTRIC INDUSTRIES, LTD., KYUSHU UNIVERSITY, JXTG Nippon Oil & Energy CorporationInventors: Kazuo Nakashima, Takehiro Hosokawa, Tatsuya Hase, Hiroki Hirai, Junichi Ono, Takuji Ootsuka, Hideki Nomura, Kazuhiro Goto, Makoto Mizoguchi, Koichi Yoshida, Kenichi Komiya, Takashi Arai, Yuji Shitara, Kazuhiro Yagishita
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Patent number: 10174207Abstract: A metal surface coating composition and a terminal-fitted electric wire which is anti-corrosion treated with the composition are provided. The composition includes a high-consistency material containing a lubricant base oil and an amide compound, a composition of a phosphorus compound containing one or more compounds represented by the below formulae and a metal, and a nucleating agent: where X1 to X7 each represent an oxygen atom or a sulfur atom, R11 to R13 each represent a hydrogen atom or a hydrocarbon group having 1 to 30 carbon atoms, among which at least one is a hydrocarbon group having 1 to 30 carbon atoms, and R14 to R16 each represent a hydrogen atom or a hydrocarbon group having 1 to 30 carbon atoms among which at least one is a hydrocarbon group having 1 to 30 carbon atoms.Type: GrantFiled: May 23, 2016Date of Patent: January 8, 2019Assignees: AUTONETWORKS TECHNOLOGIES, LTD., SUMITOMO WIRING SYSTEMS, LTD., SUMITOMO ELECTRIC INDUSTRIES, LTD., KYUSHU UNIVERSITY, JXTG NIPPON OIL & ENERGY CORPORATIONInventors: Kazuo Nakashima, Takehiro Hosokawa, Tatsuya Hase, Hiroki Hirai, Junichi Ono, Takuji Ootsuka, Hideki Nomura, Kazuhiro Goto, Makoto Mizoguchi, Koichi Yoshida, Kenichi Komiya, Takashi Arai, Yuji Shitara, Kazuhiro Yagishita
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Publication number: 20180362876Abstract: An anticorrosive agent including: a high-consistency material having a lubricant base oil and an amide compound, a composition of a phosphorus compound comprising one or more compounds represented by the general formulae (1) and (2) and a metal, and at least one kind of resin selected from a rosin-based resin, a terpene resin, a terpene phenol resin, a phenol resin, a coumarone-indene resin, and a petroleum resin, wherein a mass ratio of the high-consistency material and the composition is within a range of 50:50 to 98:2, and a content of resin is 2 to 20 parts by mass with respect to 100 parts by mass of the total of the high-consistency material and the composition.Type: ApplicationFiled: December 21, 2016Publication date: December 20, 2018Applicants: AUTONETWORKS TECHNOLOGIES, LTD., SUMITOMO WIRING SYSTEMS, LTD., SUMITOMO ELECTRIC INDUSTRIES, LTD., KYUSHU UNIVERSITY, JXTG NIPPON OIL & ENERGY CORPORATIONInventors: Yutaka TAKATA, Takehiro HOSOKAWA, Tatsuya HASE, Naoyuki OSHIUMI, Takuya YAMASHITA, Makoto MIZOGUCHI, Koichi YOSHIDA, Kenichi KOMIYA, Takashi ARAI, Yuji SHITARA, Kazuhiro YAGISHITA
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Publication number: 20180179400Abstract: A metal surface coating composition including a high-consistency material containing a lubricant base oil and an amide compound, and a composition of a phosphorus compound containing one or more compounds represented by the below formulae and a metal, wherein the ratio (a/b) of the number of amide groups (a) and the number of acidic groups (b) is within a range of 1.1 to 6.0: where X1 to X7 represent an oxygen atom or a sulfur atom, R11 to R13 represent a hydrogen atom or a hydrocarbon group having 1 to 30 carbon atoms, wherein at least one of them is a hydrocarbon group having 1 to 30 carbon atoms, and R14 to R16 represent a hydrogen atom or a hydrocarbon group having 1 to 30 carbon atoms wherein at least one of them is a hydrocarbon group having 1 to 30 carbon atoms.Type: ApplicationFiled: May 23, 2016Publication date: June 28, 2018Inventors: Kazuo NAKASHIMA, Takehiro HOSOKAWA, Tatsuya HASE, Hiroki HIRAI, Junichi ONO, Takuji OOTSUKA, Hideki NOMURA, Kazuhiro GOTO, Makoto MIZOGUCHI, Koichi YOSHIDA, Kenichi KOMIYA, Takashi ARAI, Yuji SHITARA, Kazuhiro YAGISHITA
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Publication number: 20180163058Abstract: A metal surface coating composition and a terminal-fitted electric wire which is anti-corrosion treated with the composition are provided. The composition includes a high-consistency material containing a lubricant base oil and an amide compound, a composition of a phosphorus compound containing one or more compounds represented by the below formulae and a metal, and a nucleating agent: where X1 to X7 each represent an oxygen atom or a sulfur atom, R11 to R13 each represent a hydrogen atom or a hydrocarbon group having 1 to 30 carbon atoms, among which at least one is a hydrocarbon group having 1 to 30 carbon atoms, and R14 to R16 each represent a hydrogen atom or a hydrocarbon group having 1 to 30 carbon atoms among which at least one is a hydrocarbon group having 1 to 30 carbon atoms.Type: ApplicationFiled: May 23, 2016Publication date: June 14, 2018Inventors: Kazuo NAKASHIMA, Takehiro HOSOKAWA, Tatsuya HASE, Hiroki HIRAI, Junichi ONO, Takuji OOTSUKA, Hideki NOMURA, Kazuhiro GOTO, Makoto MIZOGUCHI, Koichi YOSHIDA, Kenichi KOMIYA, Takashi ARAI, Yuji SHITARA, Kazuhiro YAGISHITA
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Patent number: 9873851Abstract: Provided are both a grease composition for an electric power steering device and an electric power steering device. The grease composition can keep a sufficiently low coefficient of friction in a sliding area between a steel and a resin over a long period, is less susceptible to being removed from the sliding area, does not cause break down of an oil film, and thus can minimize the occurrence of stick-slips. A grease composition for an electric power steering device, containing a synthetic hydrocarbon oil which exhibits a density of 0.75 to 0.95 g/cm3 at 15° C., a saturated aliphatic amide compound, boron nitride, a glycerin fatty acid partial ester, and a metal soap-based thickener; and an electric power steering device using the grease composition.Type: GrantFiled: August 29, 2013Date of Patent: January 23, 2018Assignees: JX NIPPON OIL & ENERGY CORPORATION, HITACHI AUTOMOTIVE SYSTEMS STEERING, LTD.Inventors: Takashi Arai, Kazumi Sakai, Yuji Shitara, Satoshi Taniuchi, Kohtaro Shiino, Tatsuro Suzuki
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Publication number: 20170117650Abstract: To provide a surface protective agent composition that suppresses corrosion of members of different kinds of metals close to each other due to corrosion current between the metals of the members, and to provide an electric connection structure and a method for producing an electric connection structure using the same. The surface protective agent composition contains (a) a lubricant base oil; (b) a prescribed amount of at least one compound selected from the group consisting of particular phosphorus compounds and a metal salt or an amine salt thereof; and (c) a prescribed amount of an amide compound, and in the case where the component (b) does not contain the metal salt of the phosphorus compound, the surface protective agent composition further contains (d) a prescribed amount of a salicylate of a particular metal and/or a basic (or perbasic) salt thereof, and the electric connection structure containing a surface protective layer consisting of the surface protective agent composition.Type: ApplicationFiled: March 24, 2015Publication date: April 27, 2017Applicants: JX Nippon Oil & Energy Corporation, Sumitomo Electric Industries, Ltd., Sumitomo Wiring Systems, Ltd., Autonetworks Technologies, Ltd., Kyushu University, National University CorporationInventors: Koichi Yoshida, Takashi Arai, Yuji Shitara, Kenichi Komiya, Makoto Mizoguchi, Hideki Nomura, Takuji Otsuka, Junichi Ono, Hiroki Hirai, Kazuo Nakashima, Tatsuya Hase, Takehiro Hosokawa, Kazuhiro Goto
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Publication number: 20150232778Abstract: Provided are both a grease composition for an electric power steering device and an electric power steering device. The grease composition can keep a sufficiently low coefficient of friction in a sliding area between a steel and a resin over a long period, is less susceptible to being removed from the sliding area, does not cause break down of an oil film, and thus can minimize the occurrence of stick-slips. A grease composition for an electric power steering device, containing a synthetic hydrocarbon oil which exhibits a density of 0.75 to 0.95 g/cm3 at 15° C., a saturated aliphatic amide compound, boron nitride, a glycerin fatty acid partial ester, and a metal soap-based thickener; and an electric power steering device using the grease composition.Type: ApplicationFiled: August 29, 2013Publication date: August 20, 2015Applicants: JX NIPPON OIL & ENERGY CORPORATION, HITACHI AUTOMOTIVE SYSTEMS STEERING, LTD.Inventors: Takashi Arai, Kazumi Sakai, Yuji Shitara, Satoshi Taniuchi, Kohtaro Shiino, Tatsuro Suzuki
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Publication number: 20150133353Abstract: The grease composition of the present invention comprises at least one base oil selected from a mineral oil and a synthetic oil, and based on the total amount of the grease composition, 2 to 35% by mass of a thickener, 0.05 to 5% by mass of an epoxy compound and 0.1 to 20% by mass of an antiwear additive. The grease of the present invention is good in stability, lubricity and friction characteristics and excellent in long-term reliability even under severe use conditions as compared with conventional grease.Type: ApplicationFiled: June 5, 2013Publication date: May 14, 2015Applicant: JX NIPPON OIL & ENERGY CORPORATIONInventors: Takashi Arai, Yusuke Ayame, Yuji Shitara
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Publication number: 20150024981Abstract: Provided is a grease composition that has high lubricity, particularly excellent wear resistance, and shows only a small extent of deterioration in wear resistance with long-term use under high temperatures. The grease composition comprises at least one base oil selected from a mineral oil-based lubricant base oil and a synthetic lubricant base oil, an amide compound, a solid lubricant, and a urea-based thickener, wherein the amide compound is heated and melted at least once with the base oil.Type: ApplicationFiled: March 1, 2013Publication date: January 22, 2015Inventors: Yusuke Ayame, Kazumi Sakai, Yuji Shitara
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Publication number: 20150024980Abstract: Provided is a grease composition that improves the dispersibility of a solid lubricant, that provides a sufficiently low friction coefficient in steel-resin sliding parts, and that prevents a stick-slip phenomenon. The grease composition comprising a lubricant base oil having a density of 0.75 to 0.95 g/cm3 at 15° C., an amide compound, a solid lubricant, and a metal soap-based thickener, wherein the solid lubricant is preferably a layered compound or a fluororesin, and wherein the amide compound is preferably a monoamide or a bisamide.Type: ApplicationFiled: March 1, 2013Publication date: January 22, 2015Applicant: JX Nippon Oil & Energy CorporationInventors: Takashi Arai, Kazumi Sakai, Yuji Shitara