Patents by Inventor Kazuhiro Teshima
Kazuhiro Teshima 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: 9023190Abstract: A lubricating oil composition for an internal combustion engine contains: a base oil including a component (A) of a polyalphaolefin having a kinematic viscosity at 100 degrees C. of 5.5 mm2/s or less, a CCS viscosity at ?35 degrees C. of 3000 mPa·s or less and a NOACK of 12 mass % or less and a component (B) of a mineral oil having a viscosity index of 120 or more; and polyisobutylene having a mass average molecular weight of 500,000 or more. A content of the composition (A) is 25 mass % or more of a total amount of a lubricating oil.Type: GrantFiled: March 31, 2011Date of Patent: May 5, 2015Assignee: Idemitsu Kosan Co., Ltd.Inventors: Kazuhiro Teshima, Motoharu Ishikawa
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Patent number: 9023191Abstract: A lubricating oil composition for an internal combustion engine contains a component (A) of a polyalphaolefin having a kinematic viscosity at 100 degrees C. of 5.5 mm2/s or less, a CCS viscosity at ?35 degrees C. of 3000 mPA·s or less and a NOACK of 12 mass % or less, and a component (B) of a mineral oil having a viscosity index of 120 or more. The component (A) is contained at a content of 10 mass % or more of a total amount of the composition.Type: GrantFiled: March 31, 2011Date of Patent: May 5, 2015Assignee: Idemitsu Kosan Co., Ltd.Inventors: Kazuhiro Teshima, Motoharu Ishikawa
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Patent number: 8992762Abstract: A lubricating oil composition for an internal combustion engine contains: a base oil including a component (A) of a polyalphaolefin having a kinematic viscosity at 100 degrees C. of 5.5 mm2/s or less, a CCS viscosity at ?35 degrees C. of 3000 mPa·s or less and a NOACK of 12 mass % or less and a component (B) of a mineral oil having a viscosity index of 120 or more; and polyisobutylene having a mass average molecular weight of 500,000 or more. A content of the composition (A) is 25 mass % or more of a total amount of a lubricating oil.Type: GrantFiled: March 31, 2011Date of Patent: March 31, 2015Assignee: Idemitsu Kosan Co., Ltd.Inventors: Kazuhiro Teshima, Motoharu Ishikawa
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Patent number: 8992763Abstract: A lubricating oil composition for an internal combustion engine contains a component (A) of a polyalphaolefin having a kinematic viscosity at 100 degrees C. of 5.5 mm2/s or less, a CCS viscosity at ?35 degrees C. of 3000 mPA·s or less and a NOACK of 12 mass % or less, and a component (B) of a mineral oil having a viscosity index of 120 or more. The component (A) is contained at a content of 10 mass % or more of a total amount of the composition.Type: GrantFiled: March 31, 2011Date of Patent: March 31, 2015Assignee: Idemitsu Kosan Co., Ltd.Inventors: Kazuhiro Teshima, Motoharu Ishikawa
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Patent number: 8758595Abstract: The present invention is related to a process oil using as a raw material a deasphalted oil obtained by deasphalting a vacuum residual oil of a crude oil and a manufacturing method of the process oil, the process oil having properties of: (a) a polycyclic aromatics (PCA) content of less than 3 mass %; (b) a viscosity (100° C.) of 40 to 70 mm2/s; (c) an aniline point of 85 to 100° C.; (d) a flash point of 250° C. or higher; (e) an aromatic hydrocarbon content of 40 to 55 mass %; and (f) a polar substance content of 10 to 15 mass %. The present invention is also related to a process oil and a manufacturing method of the process oil, the process oil obtained by mixing: an extract obtained by deasphalting and solvent-extracting a vacuum residual oil of a crude oil; and a lubricant base oil having a polycyclic aromatics (PCA) content of less than 3 mass %, and having properties of: (a) a polycyclic aromatics (PCA) content of less than 3 mass %; (i) a viscosity (100° C.Type: GrantFiled: April 28, 2011Date of Patent: June 24, 2014Assignee: Idemitsu Kosan Co., Ltd.Inventors: Meishi Tanaka, Masashi Nakamura, Kazuhiro Teshima, Akihito Abe, Masami Takasaki
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Publication number: 20130030226Abstract: A lubricating oil composition for an internal combustion engine contains: a base oil including a component (A) of a polyalphaolefin having a kinematic viscosity at 100 degrees C. of 5.5 mm2/s or less, a CCS viscosity at +35 degrees C. of 3000 mPa·s or less and a NOACK of 12 mass % or less and a component (B) of a mineral oil having a viscosity index of 120 or more; and polyisobutylene having a mass average molecular weight of 500,000 or more. A content of the composition (A) is 25 mass % or more of a total amount of a lubricating oil.Type: ApplicationFiled: March 31, 2011Publication date: January 31, 2013Applicant: IDEMITSU KOSAN CO., LTD.Inventors: Kazuhiro Teshima, Motoharu Ishikawa
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Publication number: 20130023456Abstract: A lubricating oil composition for an internal combustion engine contains a component (A) of a polyalphaolefin having a kinematic viscosity at 100 degrees C. of 5.5 mm2/s or less, a CCS viscosity at ?35 degrees C. of 3000 mPA·s or less and a NOACK of 12 mass % or less, and a component (B) of a mineral oil having a viscosity index of 120 or more. The component (A) is contained at a content of 25 mass % or more of a total amount of the composition.Type: ApplicationFiled: March 31, 2011Publication date: January 24, 2013Applicant: Idemitsu Kosan Co., Ltd.Inventors: Kazuhiro Teshima, Motoharu Ishikawa
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Publication number: 20130023705Abstract: A lubricating oil composition for an internal combustion engine contains a component (A) of a polyalphaolefin having a kinematic viscosity at 100 degrees C. of 5.5 mm2/s or less, a CCS viscosity at ?35 degrees C. of 3000 mPA·s or less and a NOACK of 12 mass % or less, and a component (B) of a mineral oil having a viscosity index of 120 or more. The component (A) is contained at a content of 10 mass % or more of a total amount of the composition.Type: ApplicationFiled: March 31, 2011Publication date: January 24, 2013Applicant: IDEMITSU KOSAN CO., LTD.Inventors: Kazuhiro Teshima, Motoharu Ishikawa
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Patent number: 8349775Abstract: A lubricating oil composition used in an internal combustion engine is provided. The internal combusting engine uses a fuel that contains at least one fat and oil selected from a group consisting of natural fat and oil, hydrotreated natural fat and oil, transesterified natural fat, and oil and hydrotreated transesterified natural fat and oil. The lubricating oil composition includes: base oil of lubricating oil; a component (A) containing a boron derivative of an alkyl or alkenyl-substituted succinimide compound having a number average molecular weight of 200 to 5000; and a component (B) containing an alkaline earth metal-based detergent. The component (A) is contained by 0.01 to 0.2 mass % in terms of boron of a total amount of the composition while the component (B) is contained by 0.35 mass % or less in terms of the alkaline earth metal of the total amount of the composition.Type: GrantFiled: December 22, 2011Date of Patent: January 8, 2013Assignee: Idemitsu Kosan Co., Ltd.Inventors: Kazuhiro Teshima, Hideki Kamano
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Publication number: 20120090568Abstract: A lubricating oil composition used in an internal combustion engine is provided. The internal combusting engine uses a fuel that contains at least one fat and oil selected from a group consisting of natural fat and oil, hydrotreated natural fat and oil, transesterified natural fat, and oil and hydrotreated transesterified natural fat and oil. The lubricating oil composition includes: base oil of lubricating oil; a component (A) containing a boron derivative of an alkyl or alkenyl-substituted succinimide compound having a number average molecular weight of 200 to 5000; and a component (B) containing an alkaline earth metal-based detergent. The component (A) is contained by 0.01 to 0.2 mass % in terms of boron of a total amount of the composition while the component (B) is contained by 0.35 mass % or less in terms of the alkaline earth metal of the total amount of the composition.Type: ApplicationFiled: December 22, 2011Publication date: April 19, 2012Applicant: IDEMITSU KOSAN CO.,LTD.Inventors: Kazuhiro TESHIMA, Hideki KAMANO
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Patent number: 8071515Abstract: Provided is a lubricating oil composition comprising a base oil for a lubricating oil, (A) a fatty acid partial ester compound, 0.5 to 1.5% by mass of (B) (b1) an aliphatic amine compound and/or (b2) an acid amide compound, 0.01 to 0.1% by mass of (C) a specific benzotriazole derivative and a specific amount of (D) a specific succinimide compound. It is a lubricating oil composition of an environmental regulation compliant type which is used for internal combustion engines such as gasoline engines, diesel engines, engines using dimethyl ether for fuel, gas engines and the like, which does not contain Mo base friction reducing agents and is reduced in ash, phosphorus and sulfur and in which a friction reducing effect, an oxidation stability and a corrosion inhibiting effect are enhanced.Type: GrantFiled: September 27, 2007Date of Patent: December 6, 2011Assignee: Idemitsu Kosan Co., Ltd.Inventors: Hideki Kamano, Kazuhiro Teshima
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Publication number: 20110198264Abstract: The present invention is related to a process oil using as a raw material a deasphalted oil obtained by deasphalting a vacuum residual oil of a crude oil and a manufacturing method of the process oil, the process oil having properties of: (a) a polycyclic aromatics (PCA) content of less than 3 mass %; (b) a viscosity (100° C.) of 40 to 70 mm2/s; (c) an aniline point of 85 to 100° C.; (d) a flash point of 250° C. or higher; (e) an aromatic hydrocarbon content of 40 to 55 mass %; and (f) a polar substance content of 10 to 15 mass %. The present invention is also related to a process oil and a manufacturing method of the process oil, the process oil obtained by mixing: an extract obtained by deasphalting and solvent-extracting a vacuum residual oil of a crude oil; and a lubricant base oil having a polycyclic aromatics (PCA) content of less than 3 mass %, and having properties of: (a) a polycyclic aromatics (PCA) content of less than 3 mass %; (i) a viscosity (100° C.Type: ApplicationFiled: April 28, 2011Publication date: August 18, 2011Applicant: IDEMITSU KOSAN CO., LTD.Inventors: Meishi TANAKA, Masashi NAKAMURA, Kazuhiro TESHIMA, Akihito ABE, Masami TAKASAKI
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Patent number: 7972496Abstract: The present invention is related to a process oil using as a raw material a deasphalted oil obtained by deasphalting a vacuum residual oil of a crude oil and a manufacturing method of the process oil, the process oil having properties of: (a) a polycyclic aromatics (PCA) content of less than 3 mass %; (b) a viscosity (100° C.) of 40 to 70 mm2/s; (c) an aniline point of 85 to 100° C.; (d) a flash point of 250° C. or higher; (e) an aromatic hydrocarbon content of 40 to 55 mass %; and (f) a polar substance content of 10 to 15 mass %. The present invention is also related to a process oil and a manufacturing method of the process oil, the process oil obtained by mixing: an extract obtained by deasphalting and solvent-extracting a vacuum residual oil of a crude oil; and a lubricant base oil having a polycyclic aromatics (PCA) content of less than 3 mass %, and having properties of: (a) a polycyclic aromatics (PCA) content of less than 3 mass %; (i) a viscosity (100° C.Type: GrantFiled: May 29, 2006Date of Patent: July 5, 2011Assignee: Idemitsu Kosan Co., Ltd.Inventors: Meishi Tanaka, Masashi Nakamura, Kazuhiro Teshima, Akihito Abe, Masami Takasaki
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Patent number: 7960318Abstract: The present invention provides a lubricating oil composition comprising a lube base oil comprising a mineral oil and/or a synthetic oil; (A) an alkenylsuccinimide or an alkylsuccinimide and/or a boron-containing derivative thereof in an amount of 0.01 to 0.14% by mass based on the composition in terms of the nitrogen content as an ashless dispersant, wherein an alkenylsuccic acid monoimide or an alkylsuccinic acid monoimide and/or a boron-containing derivative thereof in the ashless dispersant is 0.05% by mass or less in terms of nitrogen content; and (B) a dialkyldiphenylamine compound in an amount of 0.3 to 5.0% by mass and a hindered phenol compound in an amount of 0 to 2.5% by mass based on the composition as an antioxidant, and (C) a sulfated ash of the lubricating oil composition is 1.2% by mass or less.Type: GrantFiled: December 21, 2005Date of Patent: June 14, 2011Assignee: Idemitsu Kosan Co., Ltd.Inventors: Hideki Kamano, Motoharu Ishikawa, Kazuhiro Teshima
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Publication number: 20110003723Abstract: A lubricating oil composition is used in an internal combustion engine that uses a fuel containing at least one fat and oil of natural fat and oil, hydrotreated natural fat and oil, transesterified natural fat and oil and hydrotreated transesterified natural fat and oil. A sulfur compound containing at least one —C—S—C-bond is added to base oil. A content of sulfur contained in the —C—S—C-bond is 0.3 mass % or less based on a total amount of the compound.Type: ApplicationFiled: February 10, 2009Publication date: January 6, 2011Applicant: Idemitsu Kosan Co., Ltd.Inventors: Kazuhiro Teshima, Motoharu Ishikawa
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Publication number: 20100218740Abstract: A lubricating oil composition is used in an internal combustion engine that uses a fuel containing at least one fat and oil selected from a group consisting of natural fat and oil, hydrotreated natural fat and oil, transesterified natural fat and oil and hydrotreated transesterified natural fat and oil. A polyol ester having a kinematic viscosity in the range of 3 to 8 mm2/s at 100 degrees C and/or a polybasic acid ester having a kinematic viscosity in the range of 3 to 8 mm2/s at 100 degrees C is mixed in an amount in the range of 5 to 30 mass % of a total amount of the lubricating oil composition as a base oil of lubricating oil.Type: ApplicationFiled: October 17, 2008Publication date: September 2, 2010Applicant: IDEMITSU KOSAN CO., LTD.Inventors: Kazuhiro Teshima, Motoharu Ishikawa
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Publication number: 20100113313Abstract: A lubricating oil composition used in an internal combustion engine is provided. The internal combusting engine uses a fuel that contains at least one fat and oil selected from a group consisting of natural fat and oil, hydrotreated natural fat and oil, transesterified natural fat, and oil and hydrotreated transesterified natural fat and oil. The lubricating oil composition includes: base oil of lubricating oil; a component (A) containing a boron derivative of an alkyl or alkenyl-substituted succinimide compound having a number average molecular weight of 200 to 5000; and a component (B) containing an alkaline earth metal-based detergent. The component (A) is contained by 0.01 to 0.2 mass % in terms of boron of a total amount of the composition while the component (B) is contained by 0.35 mass % or less in terms of the alkaline earth metal of the total amount of the composition.Type: ApplicationFiled: March 24, 2008Publication date: May 6, 2010Applicant: IDEMITSU KOSAN CO., LTD.Inventors: Kazuhiro Teshima, Hideki Kamano
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Publication number: 20100009876Abstract: Provided is a lubricating oil composition comprising a base oil for a lubricating oil, (A) a fatty acid partial ester compound, 0.5 to 1.5% by mass of (B) (b1) an aliphatic amine compound and/or (b2) an acid amide compound, 0.01 to 0.1% by mass of (C) a specific benzotriazole derivative and a specific amount of (D) a specific succinimide compound. It is a lubricating oil composition of an environmental regulation compliant type which is used for internal combustion engines such as gasoline engines, diesel engines, engines using dimethyl ether for fuel, gas engines and the like, which does not contain Mo base friction reducing agents and is reduced in ash, phosphorus and sulfur and in which a friction reducing effect, an oxidation stability and a corrosion inhibiting effect are enhanced.Type: ApplicationFiled: September 27, 2007Publication date: January 14, 2010Applicant: IDEMITSU KOSAN CO., LTDInventors: Hideki Kamano, Kazuhiro Teshima
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Publication number: 20090207847Abstract: A relay device includes response frame transmitting technique for transmitting a response frame with the result of the inquiry to the effect that the source address coincident with the destination address to be inquired has been registered in the learning table to the relay device from which the inquiry frame was transmitted in the case that the registration judging technique has judged that the source address coincident with the destination address to be inquired has been registered in the learning table, and frame relaying technique for relaying the received frame whose relay has been temporarily postponed via the receiving port for the response frame in the case that the response frame was received.Type: ApplicationFiled: February 18, 2009Publication date: August 20, 2009Applicant: FUJITSU LIMITEDInventors: Kazuhiro TESHIMA, Masamichi Kasa
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Publication number: 20090020453Abstract: The present invention is related to a process oil using as a raw material a deasphalted oil obtained by deasphalting a vacuum residual oil of a crude oil and a manufacturing method of the process oil, the process oil having properties of: (a) a polycyclic aromatics (PCA) content of less than 3 mass %; (b) a viscosity (100° C.) of 40 to 70 mm2/s; (c) an aniline point of 85 to 100° C.; (d) a flash point of 250° C. or higher; (e) an aromatic hydrocarbon content of 40 to 55 mass %; and (f) a polar substance content of 10 to 15 mass %. The present invention is also related to a process oil and a manufacturing method of the process oil, the process oil obtained by mixing: an extract obtained by deasphalting and solvent-extracting a vacuum residual oil of a crude oil; and a lubricant base oil having a polycyclic aromatics (PCA) content of less than 3 mass %, and having properties of: (a) a polycyclic aromatics (PCA) content of less than 3 mass %; (i) a viscosity (100° C.Type: ApplicationFiled: May 29, 2006Publication date: January 22, 2009Applicant: IDEMITSU KOSAN CO., LTD.Inventors: Meishi Tanaka, Masashi Nakamura, Kazuhiro Teshima, Akihito Abe, Masami Takasaki