Patents by Inventor Satoshi Hiyoshi
Satoshi Hiyoshi 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: 10266788Abstract: The present invention provides a refrigerating-machine oil composition which comprises the following ester additive (a) and the following ester base oil (b), the content of the ester additive (a) being 5-45 mass % with respect to the total amount of the refrigerating-machine oil composition. Ester additive (a): At least one ester of isotridecanoic acid with pentaerythritol Ester base oil (b): Polyhydric-alcohol esters comprising esters of two or more aliphatic monocarboxylic acids selected from among C4-9 aliphatic monocarboxylic acids with pentaerythritol.Type: GrantFiled: February 6, 2015Date of Patent: April 23, 2019Assignee: KH NEOCHEM CO., LTD.Inventors: Satoshi Hiyoshi, Junya Kishi, Masato Kujime
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Publication number: 20170198236Abstract: The present invention provides a refrigerating-machine oil composition which comprises the following ester additive (a) and the following ester base oil (b), the content of the ester additive (a) being 5-45 mass % with respect to the total amount of the refrigerating-machine oil composition. Ester additive (a): At least one ester of isotridecanoic acid with pentaerythritol Ester base oil (b): Polyhydric-alcohol esters comprising esters of two or more aliphatic monocarboxylic acids selected from among C4-9 aliphatic monocarboxylic acids with pentaerythritol.Type: ApplicationFiled: February 6, 2015Publication date: July 13, 2017Inventors: Satoshi Hiyoshi, Junya Kishi, Masato Kujime
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Patent number: 8772531Abstract: A neopentyl glycol diester which is a mixed ester of neopentyl glycol and carboxylic acids is provided, wherein the carboxylic acids consisting of isobutyric acid as well as 2-ethylhexanoic acid and/or 3,5,5-trimethylhexanoic acid. The neopentyl glycol diester may be used in a refrigerant oil or the like which exhibits excellent miscibility with a difluoromethane refrigerant among other properties.Type: GrantFiled: June 30, 2011Date of Patent: July 8, 2014Assignee: KH Neochem Co., Ltd.Inventors: Toshihiro Inayama, Satoshi Hiyoshi, Junya Kishi, Masato Kujime
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Patent number: 8772530Abstract: A pentaerythritol tetraester which is a mixed ester of pentaerythritol and carboxylic acids is provided, wherein the carboxylic acids consist of isobutyric acid and 3,5,5-trimethylhexanoic acid and the molar ratio of isobutyric acid to 3,5,5-trimethylhexanoic acid in the carboxylic acids is 36/64 to 80/20. The pentaerythritol tetraester may be used in a refrigerant oil or the like which exhibits excellent miscibility with a difluoromethane refrigerant among other properties.Type: GrantFiled: June 30, 2011Date of Patent: July 8, 2014Assignee: KH Neochem Co., Ltd.Inventors: Toshihiro Inayama, Satoshi Hiyoshi, Nobuhito Amemiya, Shigehisa Kishimoto
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Patent number: 8664430Abstract: A pentaerythritol tetraester which is a mixed ester of pentaerythritol and carboxylic acids is provided, wherein the carboxylic acids comprise isobutyric acid and 2-ethylhexanoic acid and the molar ratio of isobutyric acid to 2-ethylhexanoic acid in the carboxylic acids is 36/64 to 83/17. The pentaerythritol tetraester may be used in a refrigerant oil or the like which exhibits excellent miscibility with a difluoromethane refrigerant among other properties.Type: GrantFiled: June 30, 2011Date of Patent: March 4, 2014Assignee: KH Neochem Co., Ltd.Inventors: Toshihiro Inayama, Satoshi Hiyoshi, Nobuhito Amemiya, Shigehisa Kishimoto
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Publication number: 20130231498Abstract: A neopentyl glycol diester which is a mixed ester of neopentyl glycol and carboxylic acids is provided, wherein the carboxylic acids comprising isobutyric acid as well as 2-ethylhexanoic acid and/or 3,5,5-trimethylhexanoic acid. The neopentyl glycol diester may be used in a refrigerant oil or the like which exhibits excellent miscibility with a difluoromethane refrigerant among other properties.Type: ApplicationFiled: June 30, 2011Publication date: September 5, 2013Applicant: KH NEOCHEM CO., LTD.Inventors: Toshihiro Inayama, Satoshi Hiyoshi, Junya Kishi, Masato Kujime
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Patent number: 8455413Abstract: An additive for oils that is capable of imparting oils such as lubricant base oils with superior wear resistance properties or friction resistance properties, and a lubricant. An additive for oils that includes a compound represented by formula (I) is used. A and B each represents a single bond or hydrocarbylene or the like, X and Y each represents a sulfur atom or single bond, and W and Z each represents a hydrogen atom or —NR1R2 or the like, provided that W and Z are not both hydrogen atoms. R1 and R2 each represents a hydrogen atom, a hydrocarbyl or a hydrocarbylcarbonyl or the like, and n and m each represents an integer of 0 to 5.Type: GrantFiled: May 7, 2008Date of Patent: June 4, 2013Assignee: KH Neochem Co., Ltd.Inventors: Satoshi Hiyoshi, Shingo Nakayama, Nobuhito Amemiya, Shigeaki Kato, Toshihiro Inayama, Yukihiro Isogai, Ichiro Minami, Shigeyuki Mori
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Publication number: 20130131373Abstract: A pentaerythritol tetraester which is a mixed ester of pentaerythritol and carboxylic acids is provided, wherein the carboxylic acids comprise isobutyric acid and 2-ethylhexanoic acid and the molar ratio of isobutyric acid to 2-ethylhexanoic acid in the carboxylic acids is 36/64 to 83/17. The pentaerythritol tetraester may be used in a refrigerant oil or the like which exhibits excellent miscibility with a difluoromethane refrigerant among other properties.Type: ApplicationFiled: June 30, 2011Publication date: May 23, 2013Applicant: KH NEOCHEM CO., LTD.Inventors: Toshihiro Inayama, Satoshi Hiyoshi, Nobuhito Amemiya, Shigehisa Kishimoto
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Publication number: 20130131374Abstract: A pentaerythritol tetraester which is a mixed ester of pentaerythritol and carboxylic acids is provided, wherein the carboxylic acids consist of isobutyric acid and 3,5,5-trimethylhexanoic acid and the molar ratio of isobutyric acid to 3,5,5-trimethylhexanoic acid in the carboxylic acids is 36/64 to 80/20. The pentaerythritol tetraester may be used in a refrigerant oil or the like which exhibits excellent miscibility with a difluoromethane refrigerant among other properties.Type: ApplicationFiled: June 30, 2011Publication date: May 23, 2013Applicant: KH NEOCHEM CO., LTD.Inventors: Toshihiro Inayama, Satoshi Hiyoshi, Nobuhito Amemiya, Shigehisa Kishimoto
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Patent number: 7902406Abstract: The present invention provides a lubricating oil comprising an alicyclic compound represented by a general formula (I): wherein n is an integer of 0 or 1; one of R1 and R2 represents —CH2OR4 (wherein R4 represents a carboxylic acid residue) while the other one represents alkyl, lower alkyl-substituted or unsubstituted cycloalkyl, aryl, or aralkyl; and R3 represents —CH2OR5 (wherein R5 represents a carboxylic residue) and the like. The lubricating oil of the present invention has an excellent traction coefficient, excellent heat resistance, or the like. For the lubricating oil of the present invention, the alicyclic compound represented by the general formula (I) can be directly used as it is, and other base oils such as ester oil, poly-?-olefin, mineral oil, or silicone oil may be included therein, if necessary.Type: GrantFiled: September 13, 2006Date of Patent: March 8, 2011Assignee: Kyowa Hakko Chemical Co., Ltd.Inventors: Suguru Ohara, Satoshi Hiyoshi, Yukihiro Isogai, Makoto Goto
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Publication number: 20100298183Abstract: An additive for oils that is capable of imparting oils such as lubricant base oils with superior wear resistance properties or friction resistance properties, and a lubricant. An additive for oils that includes a compound represented by formula (I) is used. A and B each represents a single bond or hydrocarbylene or the like, X and Y each represents a sulfur atom or single bond, and W and Z each represents a hydrogen atom or —NR1R2 or the like, provided that W and Z are not both hydrogen atoms. R1 and R2 each represents a hydrogen atom, a hydrocarbyl or a hydrocarbylcarbonyl or the like, and n and m each represents an integer of 0 to 5.Type: ApplicationFiled: May 7, 2008Publication date: November 25, 2010Applicant: KYOWA HAKKO CHEMICAL CO., LTD.Inventors: Satoshi Hiyoshi, Shingo Nakayama, Nobuhito Amemiya, Shigeaki Kato, Toshihiro Inayama, Yukihiro Isogai, Ichiro Minami, Shigeyuki Mori
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Publication number: 20100286008Abstract: An additive for oils that is capable of imparting oils such as lubricant base oils or fuel oils with superior wear resistance properties or superior friction resistance properties and the like are provided. The additive for oils comprising a compound represented by formula (I): [Chemical Formula 1] (A)m-W—(B)n ??(I) wherein m represents an integer of 0 to 4, n represents an integer of 2 to 6, A represents hydroxy or amino, W represents hydrocarbon or the like, and B represents formula (II): wherein a represents 0 or 1, X represents an oxygen atom or NH, Y represents OR1 or NHR2 (wherein R1 and R2 each represent alkyl optionally having one or more substituents or the like), and Z1 and Z2 each represent a hydrogen atom, NR3R4 (wherein R3 and R4 each represent alkyl optionally having one or more substituents or the like) or the like, and the like are provided.Type: ApplicationFiled: May 9, 2008Publication date: November 11, 2010Applicant: KYOWA HAKKO CHEMICAL CO., LTD.Inventors: Satoshi Hiyoshi, Junya Kishi, Shingo Nakayama, Suguru Ohara, Yukihiro Isogai
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Publication number: 20090156856Abstract: The present invention provides a lubricating oil comprising an alicyclic compound represented by a general formula (I): wherein n is an integer of 0 or 1; one of R1 and R2 represents —CH2OR4 (wherein R4 represents a carboxylic acid residue) while the other one represents alkyl, lower alkyl-substituted or unsubstituted cycloalkyl, aryl, or aralkyl; and R3 represents —CH2OR5 (wherein R5 represents a carboxylic residue) and the like. The lubricating oil of the present invention has an excellent traction coefficient, excellent heat resistance, or the like. For the lubricating oil of the present invention, the alicyclic compound represented by the general formula (I) can be directly used as it is, and other base oils such as ester oil, poly-?-olefin, mineral oil, or silicone oil may be included therein, if necessary.Type: ApplicationFiled: September 13, 2006Publication date: June 18, 2009Applicant: KYOWA HAKKO CHEMICAL CO., LTD.Inventors: Suguru Ohara, Satoshi Hiyoshi, Yukihiro Isogai, Makoto Goto
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Patent number: 6958366Abstract: An antifouling coating composition having an excellent coating film strength and also has markedly superior antifouling properties, and a novel resin which is useful as a matrix resin for the composition are provided. The antifouling coating composition comprises a vinyl polymer (A) having, as a repeating unit, a structural unit (a) represented by the following formula (1): (in the formula (1), X1 and X2 each independently represents an ester bond or a carbonyl group; R1 represents an ethylene structure which forms a covalent bond with the carbonyl carbon atom and X1 in the formula (1) at the same or adjacent carbon atom; R2 represents a gem-alkylene group, a vic-alkylene group, an arylmethylidene group or an arylethylene group; and R3 and R4 represent an alkyl group or an aryl group, or a hydrocarbon group having a carbonyl group, an ether bond or an ester bond) and an antifouling agent (B).Type: GrantFiled: April 12, 2001Date of Patent: October 25, 2005Assignee: Dainippon Ink and Chemicals, Inc.Inventors: Koji Tokunaga, Masataka Ooka, Hiroo Tanaka, Asako Oda, Hiroshi Matsuzawa, Makoto Tsuboi, Eiichi Yoshikawa, Yasuhiro Yuki, Satoshi Hiyoshi
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Patent number: 6828030Abstract: A (poly)oxyalkylene block silyl ester copolymer comprising silyl ester copolymer block units (A) and block units (B), the block units (a) comprising (a) component units derived from a polymerizable unsaturated carboxylic acid silyl ester, and (b) polymerizable unsaturated monomer units other than the component units (a), the block units (B) derived from particular mercapto compounds, and an antifouling paint comprising the (poly)oxyalkylene block silyl ester copolymer. The copolymer enables the formation of an antifouling coating film which exhibits less cracking tendency, excellent adherence, less peeling tendency and controlled hydrolysis rate resulting in excellent antifouling performance and properties.Type: GrantFiled: October 23, 2001Date of Patent: December 7, 2004Assignee: Chugoku Marine Paints, Ltd.Inventors: Hidetaka Arimura, Satoshi Hiyoshi, Naoya Nakamura, Makoto Tsuboi
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Publication number: 20030118544Abstract: An antifouling coating composition having an excellent coating film strength and also has markedly superior antifouling properties, and a novel resin which is useful as a matrix resin for the composition are provided.Type: ApplicationFiled: October 11, 2002Publication date: June 26, 2003Inventors: Koji Tokunaga, Masataka Ooka, Hiroo Tanaka, Asako Oda, Hiroshi Matsuzawa, Makoto Tsuboi, Eiichi Yoshikawa, Yasuhiro Yuki, Satoshi Hiyoshi
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Publication number: 20020156224Abstract: A (poly)oxyalkylene block silyl ester copolymer comprising silyl ester copolymer block units (A) and block units (B), the silyl ester copolymer block units (A) comprising (a) component units derived from a polymerizable unsaturated carboxylic acid silyl ester, and (b) polymerizable unsaturated monomer units other than the component units (a), the block units (B) derived from a mercapto compound represented by the following formula (1) or (2), and further an antifouling paint comprising the (poly)oxyalkylene block silyl ester copolymer.Type: ApplicationFiled: October 23, 2001Publication date: October 24, 2002Applicant: CHUGOKU MARINE PAINTS, LTD.Inventors: Hidetaka Arimura, Satoshi Hiyoshi, Naoya Nakamura, Makoto Tsuboi
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Patent number: 6458878Abstract: Disclosed is a silyl (meth)acrylate copolymer which comprises 20 to 80% by weight of (a) silyl (meth)acrylate constituent units (I), 0.01 to 40% by weight of (b) acrylic unsaturated monomer constituent units (II) and 5 to 79.9% by weight of Ĉ unsaturated monomer constituent units other than the constituent units (a) and (b). Also disclosed is a process for preparing the silyl (meth)acrylate copolymer, an antifouling paint composition comprising the copolymer, a coating film formed from the paint composition, a hull with the coating film and an antifouling method using the paint composition.Type: GrantFiled: December 27, 1999Date of Patent: October 1, 2002Assignee: Chuogoku Marine Paints, Ltd.Inventors: Makoto Tsuboi, Eiichi Yoshikawa, Hidetaka Arimura, Fumio Hamazu, Naoya Nakamura, Yasuto Hikiji, Masaaki Oya, Satoshi Hiyoshi, Yukio Kozono