Patents by Inventor Ken Sawada
Ken Sawada 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: 10053647Abstract: The present invention provides a working fluid composition for a refrigerating machine, comprising a refrigerating machine oil that comprises an ester of a polyhydric alcohol and a fatty acid, an epoxy compound, and a phosphorus compound, and a fluoropropene refrigerant, wherein the polyhydric alcohol constituting the ester comprises pentaerythritol and dipentaerythritol, the fatty acid constituting the ester comprises at least one selected from fatty acids having 4 to 9 carbon atoms, and the epoxy compound and the phosphorus compound satisfy a condition represented by the following formula (1). [ Formula ? ? 1 ] ? 0.10 ? ( N E M E · W E ) ( N P M P · W P ) ? 1.Type: GrantFiled: December 22, 2014Date of Patent: August 21, 2018Assignees: Denso Corporation, Kabushki Kaisha Toyota Jidoshokki, JX Nippon Oil & Energy CorporationInventors: Masataka Muto, Hajime Mukawa, Takekazu Kano, Genki Hayashi, Kazuki Yamamoto, Takahiro Hoshida, Hitoshi Takahashi, Ken Sawada, Akira Tada, Souichirou Konno
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Patent number: 10023823Abstract: The present invention provides a refrigerating machine oil comprising, as a base oil, at least one oxygen-containing oil having a carbon/oxygen molar ratio of 2.5 or more and 5.8 or less, wherein the refrigerating machine oil is used with a refrigerant comprising 15% by mass or more of difluoromethane, 15% by mass or more of pentafluoroethane, 15% by mass or more of 2,3,3,3-tetrafluoropropene and 15% by mass or more of 1,1,1,2-tetrafluoroethane based on the total amount of the refrigerant.Type: GrantFiled: September 24, 2015Date of Patent: July 17, 2018Assignee: JXTG NIPPON OIL & ENERGY CORPORATIONInventors: Hitoshi Takahashi, Hiroko Shimpo, Souichirou Konno, Ken Sawada, Kentaro Yamaguchi
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Patent number: 10005981Abstract: The refrigerating machine oil according to the present invention comprises a polyalkylene glycol represented by the following formula (1): R1—(OR3)n—OR2??(1) [R1 and R2 may be the same or different from each other and each represent a hydrogen atom, an alkyl group having from 1 to 5 carbon atoms, or an acyl group having from 2 to 5 carbon atoms, R3 represents an alkylene group having from 2 to 4 carbon atoms, n represents an integer such that a number average molecular weight of the polyalkylene glycol represented by the formula (1) is from 1000 to 2500] the polyalkylene glycol having a ratio of the weight average molecular weight Mw to the number average molecular weight Mn, Mw/Mn, of from 1.00 to 1.15, the refrigerating machine oil being used with a mildly flammable hydrofluorocarbon refrigerant.Type: GrantFiled: September 30, 2014Date of Patent: June 26, 2018Assignee: JXTG Nippon Oil & Energy CorporationInventors: Hitoshi Takahashi, Ken Sawada, Akira Tada, Souichirou Konno
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Publication number: 20180044607Abstract: The present invention provides a refrigerating machine oil comprising: an ester of a polyhydric alcohol and a fatty acid as a base oil; and an ether compound of a polyhydric alcohol, the refrigerating machine oil being used with an unsaturated hydrofluorocarbon refrigerant.Type: ApplicationFiled: February 12, 2016Publication date: February 15, 2018Applicant: JXTG Nippon Oil & Energy CorporationInventors: Akira Tada, Ken Sawada
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Patent number: 9834737Abstract: The present invention provides a refrigerating machine oil composition comprising an ester-based base oil, an epoxy compound, and a carbodiimide compound, the refrigerating machine oil composition being used with a refrigerant containing a fluoropropene in a refrigerating machine comprising a member containing polyethylene terephthalate and/or a member containing hydrogenated acrylonitrile butadiene rubber.Type: GrantFiled: September 30, 2014Date of Patent: December 5, 2017Assignee: JX NIPPON OIL & ENERGY CORPORATIONInventors: Hitoshi Takahashi, Ken Sawada, Akira Tada, Souichirou Konno
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Publication number: 20170327759Abstract: The present invention provides a refrigerating machine oil comprising, as a base oil, at least one oxygen-containing oil having a carbon/oxygen molar ratio of 2.5 or more and 5.8 or less, wherein the refrigerating machine oil is used with a refrigerant comprising 15% by mass or more of difluoromethane, 15% by mass or more of pentafluoroethane, 15% by mass or more of 2,3,3,3-tetrafluoropropene and 15% by mass or more of 1,1,1,2-tetrafluoroethane based on the total amount of the refrigerant.Type: ApplicationFiled: September 24, 2015Publication date: November 16, 2017Applicant: JX NIPPON OIL & ENERGY CORPORATIONInventors: Hitoshi TAKAHASHI, Hiroko SHIMPO, Souichirou KONNO, Ken SAWADA, Kentaro YAMAGUCHI
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Publication number: 20170327765Abstract: The present invention provides a refrigerating machine oil containing an ester base oil obtained from pentaerythritol and mixed fatty acids of a fatty acid having 8 carbon atoms and a fatty acid having 9 carbon atoms, wherein a ratio of a weight average molecular weight Mw to a number average molecular weight Mn, Mw/Mn, of the ester base oil is 1.06 to 1.20, and used with a mildly flammable hydrofluorocarbon refrigerant.Type: ApplicationFiled: October 22, 2015Publication date: November 16, 2017Applicant: JXTG Nippon Oil & Energy CorporationInventors: Hitoshi TAKAHASHI, Hiroko SHIMPO, Souichirou KONNO, Ken SAWADA, Kentaro YAMAGUCHI
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Publication number: 20170267483Abstract: A sheet processing apparatus that forms a folding line on a sheet includes first and second folding rollers that form a folding line on the sheet by rotating a bent sheet while pinching from sheet surfaces and a first pressing unit that presses the second folding roller against the first folding roller in an arbitrary portion in a rotating shaft direction of the second folding roller.Type: ApplicationFiled: June 5, 2017Publication date: September 21, 2017Applicant: Ricoh Company, Ltd.Inventors: Ken SAWADA, Shigeru MIZUNO, Hiroyuki KUNO, Takuya FUKUHARA
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Patent number: 9752091Abstract: The lubricating base oil of the present invention comprises an ester synthesized from: a first component that is at least one selected from polyhydric alcohols having 2 to 4 hydroxyl groups; a second component that is at least one selected from polybasic acids having 6 to 12 carbon atoms; and a third component that is at least one selected from monohydric alcohols having 4 to 18 carbon atoms and monocarboxylic acids having 2 to 12 carbon atoms. In addition, the refrigerating machine oil and the working fluid composition for a refrigerating machine of the present invention each comprise the above lubricating base oil.Type: GrantFiled: July 25, 2013Date of Patent: September 5, 2017Assignee: JX NIPPON OIL & ENERGY CORPORATIONInventors: Masanori Saito, Ken Sawada, Takeshi Okido, Kuniko Adegawa
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Patent number: 9688502Abstract: A sheet processing apparatus that forms a folding line on a sheet includes first and second folding rollers that form a folding line on the sheet by rotating a bent sheet while pinching from sheet surfaces and a first pressing unit that presses the second folding roller against the first folding roller in an arbitrary portion in a rotating shaft direction of the second folding roller.Type: GrantFiled: May 7, 2015Date of Patent: June 27, 2017Assignee: RICOH COMPANY, LIMITEDInventors: Ken Sawada, Shigeru Mizuno, Hiroyuki Kuno, Takuya Fukuhara
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Patent number: 9587196Abstract: Disclosed is a working fluid composition for a refrigerating machine, comprising a refrigerating machine oil comprising an ester of a polyhydric alcohol and a fatty acid, a carbodiimide compound, and a phosphorous compound, and at least one refrigerant selected from 1, 1, 1,2-tetrafluoroethane and 2,3,3,3-tetrafluoropropene, the fatty acid comprises at least one selected from fatty acids having 4 to 9 carbon atoms, and the carbodiimide compound and the phosphorus compound satisfy the conditions represented by the formula (1): 0.11 ? ( N C M C · W C ) ( N P M P · W P ) ? 4.Type: GrantFiled: January 19, 2015Date of Patent: March 7, 2017Assignee: JX Nippon Oil & Energy CorporationInventors: Hitoshi Takahashi, Ken Sawada, Akira Tada, Souichirou Konno
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Publication number: 20170037337Abstract: The present invention provides a working fluid composition for a refrigerating machine, comprising a refrigerating machine oil that comprises an ester of a polyhydric alcohol and a fatty acid, an epoxy compound, and a phosphorus compound, and a fluoropropene refrigerant, wherein the polyhydric alcohol constituting the ester comprises pentaerythritol and dipentaerythritol, the fatty acid constituting the ester comprises at least one selected from fatty acids having 4 to 9 carbon atoms, and the epoxy compound and the phosphorus compound satisfy a condition represented by the following formula (1). [ Formula ? ? 1 ] ? 0.10 ? ( N E M E · W E ) ( N P M P · W P ) ? 1.Type: ApplicationFiled: December 22, 2014Publication date: February 9, 2017Applicants: Denso Corporation, Kabushki Kaisha Toyota Jidoshokki, JX Nippon Oil & Energy CorporationInventors: Masataka MUTO, Hajime MUKAWA, Takekazu KANO, Genki HAYASHI, Kazuki YAMAMOTO, Takahiro HOSHIDA, Hitoshi TAKAHASHI, Ken SAWADA, Akira TADA, Souichirou KONNO
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Patent number: 9546337Abstract: The present invention provides a lubricating oil composition comprising a lubricating base oil, and at least one ester additive selected from a first ester that is a fatty acid 3,4-epoxycyclohexyl alkyl ester and a second ester that is a 3,4-epoxycyclohexyl carboxylic acid alkyl ester, wherein a content of the ester additive is 0.01 to 5.0% by mass based on the total mass of the lubricating oil composition.Type: GrantFiled: August 23, 2013Date of Patent: January 17, 2017Assignee: JX NIPPON OIL & ENERGY CORPORATIONInventors: Masanori Saito, Ken Sawada, Kuniko Adegawa
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Publication number: 20170009170Abstract: Disclosed is a working fluid composition for a refrigerating machine, comprising a refrigerating machine oil comprising an ester of a polyhydric alcohol and a fatty acid, a carbodiimide compound, and a phosphorous compound, and at least one refrigerant selected from 1, 1, 1,2-tetrafluoroethane and 2,3,3,3-tetrafluoropropene, the fatty acid comprises at least one selected from fatty acids having 4 to 9 carbon atoms, and the carbodiimide compound and the phosphorus compound satisfy the conditions represented by the formula (1): 0.11 ? ( N C M C · W C ) ( N P M P · W P ) ? 4.Type: ApplicationFiled: January 19, 2015Publication date: January 12, 2017Applicant: JX Nippon Oil & Energy CorporationInventors: Hitoshi Takahashi, Ken Sawada, Akira Tada, Souichirou Konno
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Patent number: 9469801Abstract: A working fluid composition for a refrigerating machine of the present invention comprises: a refrigerating machine oil comprising a complex ester as a base oil; and a hydrocarbon refrigerant having 2 to 4 carbon atoms, the complex ester being obtainable by further esterifying, with at least one selected from a monohydric alcohol having 1 to 20 carbon atoms and a fatty acid having 2 to 20 carbon atoms, an ester intermediate obtained by reacting a neopentyl polyol with a dibasic acid, and having an acid value of 0.5 mgKOH/g or less, the refrigerating machine oil having a kinematic viscosity at 100° C. of 2 to 50 mm2/s.Type: GrantFiled: February 28, 2013Date of Patent: October 18, 2016Assignee: JX NIPPON OIL & ENERGY CORPORATIONInventors: Masanori Saito, Takeshi Okido, Ken Sawada, Kuniko Adegawa
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Publication number: 20160244691Abstract: The refrigerating machine oil according to the present invention comprises a polyalkylene glycol represented by the following formula (1): R1—(OR3)n—OR2??(1) [R1 and R2 may be the same or different from each other and each represent a hydrogen atom, an alkyl group having from 1 to 5 carbon atoms, or an acyl group having from 2 to 5 carbon atoms, R3 represents an alkylene group having from 2 to 4 carbon atoms, n represents an integer such that a number average molecular weight of the polyalkylene glycol represented by the formula (1) is from 1000 to 2500] the polyalkylene glycol having a ratio of the weight average molecular weight Mw to the number average molecular weight Mn, Mw/Mn, of from 1.00 to 1.15, the refrigerating machine oil being used with a mildly flammable hydrofluorocarbon refrigerant.Type: ApplicationFiled: September 30, 2014Publication date: August 25, 2016Applicant: JX Nippon Oil & Energy CorporationInventors: Hitoshi Takahashi, Ken Sawada, Akira Tada, Souichirou Konno
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Publication number: 20160244692Abstract: The present invention provides a refrigerating machine oil composition comprising an ester-based base oil, an epoxy compound, and a carbodiimide compound, the refrigerating machine oil composition being used with a refrigerant containing a fluoropropene in a refrigerating machine comprising a member containing polyethylene terephthalate and/or a member containing hydrogenated acrylonitrile butadiene rubber.Type: ApplicationFiled: September 30, 2014Publication date: August 25, 2016Applicant: JX NIPPON OIL & ENERGY CORPORATIONInventors: Hitoshi TAKAHASHI, Ken SAWADA, Akira TADA, Souichirou KONNO
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Patent number: 9411000Abstract: Methods and systems for measuring capacitance difference are disclosed. In one aspect, first and second capacitive elements are connected between voltage receiving nodes for receiving first and second DC voltages and nodes connectable to a third DC voltage via a first, resp. second switch. Further, in a first phase, a voltage difference is applied to charge the capacitive elements and the switches are alternately closed. First resulting currents are measured. Further, in a second phase, the first and second DC voltages are applied alternatingly and the switches are alternately closed. Second resulting currents are measured. The capacitance difference can be determined from the first and second resulting currents.Type: GrantFiled: June 20, 2014Date of Patent: August 9, 2016Assignees: IMEC, Sony CorporationInventors: Geert Van der Plas, Ken Sawada, Yuichi Miyamori, Ankur Anchlia, Abdelkarim Mercha
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Patent number: 9343410Abstract: A semiconductor device includes a first semiconductor substrate and a second semiconductor substrate laminated with an insulating layer, a first transmission line formed on the first semiconductor substrate, the first transmission line including a signal line and a ground, a second transmission line formed on the second semiconductor substrate, the second transmission line including a signal line and a ground, a first via layer for the signal lines, the first via layer for the signal lines being formed of a conductor layer formed within a via hole, a first via layer for the grounds, the first via layer for the grounds being formed of a conductor layer formed within a via hole, and a second via layer for the grounds, the second via layer for the grounds being formed of a conductor layer formed within a via hole.Type: GrantFiled: May 27, 2014Date of Patent: May 17, 2016Assignee: Sony CorporationInventor: Ken Sawada
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Publication number: 20150336765Abstract: A sheet processing apparatus that forms a folding line on a sheet includes first and second folding rollers that form a folding line on the sheet by rotating a bent sheet while pinching from sheet surfaces and a first pressing unit that presses the second folding roller against the first folding roller in an arbitrary portion in a rotating shaft direction of the second folding roller.Type: ApplicationFiled: May 7, 2015Publication date: November 26, 2015Applicant: Ricoh Company, LimitedInventors: Ken SAWADA, Shigeru MIZUNO, Hiroyuki KUNO, Takuya FUKUHARA