Patents by Inventor Masayuki Kishimoto
Masayuki Kishimoto 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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Publication number: 20240018081Abstract: An object of the present disclosure is to provide a method for producing a fluorinated organic compound, the method being capable of removing a sulfur-containing substance to a high degree, or provide a composition containing a fluorinated organic compound with a low content of a sulfur-containing substance. The present disclosure relates to a method for producing a fluorinated organic compound (pf), the method comprising: [A] reaction step A of fluorinating an organic sulfur compound (ss) with a fluorinating agent to obtain a composition (?) containing a fluorinated organic compound (pf); and [B] post-treatment step B of reacting the composition (?) with a nucleophile at a temperature of 40° C. or higher.Type: ApplicationFiled: September 25, 2023Publication date: January 18, 2024Applicant: DAIKIN INDUSTRIES, LTD.Inventors: Atsushi SHIRAI, Yoshichika KUROKI, Yuusuke ETOU, Masayuki KISHIMOTO, Takashi NAMIKAWA, Sumi ISHIHARA, Makoto SUYAMA, Kenji ADACHI, Yosuke KISHIKAWA
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Patent number: 10407368Abstract: The present invention provides a method for producing a fluorine-containing haloolefin compound, the method easily inhibiting catalyst deactivation, and the method being capable of inhibiting a decrease in conversion and selectivity in the reaction, even when the reaction is continued for a long period of time. The present invention is a method for producing a fluorine-containing haloolefin compound via a step of fluorinating a C3 halogenated hydrocarbon. The method comprises a step of removing a stabilizer contained in the C3 halogenated hydrocarbon before the fluorination step.Type: GrantFiled: October 8, 2015Date of Patent: September 10, 2019Assignee: DAIKIN INDUSTRIES, LTD.Inventors: Daisuke Karube, Masayuki Kishimoto, Yuzo Komatsu
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Patent number: 10301238Abstract: This invention provides a process for producing 2-chloro-3,3,3-trifluoropropene, comprising: reacting anhydrous hydrogen fluoride with at least one chlorine-containing compound selected from the group consisting of chloropropanes and chloropropenes represented by specific formulas in a gas phase in the presence of a chromium atom-containing fluorination catalyst while heating, the reaction being carried out in the presence of molecular chlorine or with a water content in the reaction system of 300 ppm or less. This invention enables suppression of catalyst deterioration and efficient production of 2-chloro-3,3,3-trifluoropropene in a simple and economically advantageous manner on an industrial scale.Type: GrantFiled: June 9, 2017Date of Patent: May 28, 2019Assignee: DAIKIN INDUSTRIES, LTD.Inventors: Yuzo Komatsu, Masayuki Kishimoto
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Patent number: 10266464Abstract: This invention provides a process for producing 2-chloro-3,3,3-trifluoropropene, comprising: reacting anhydrous hydrogen fluoride with at least one chlorine-containing compound selected from the group consisting of chloropropanes and chloropropenes represented by specific formulas in a gas phase in the presence of a chromium atom-containing fluorination catalyst while heating, the reaction being carried out in the presence of molecular chlorine or with a water content in the reaction system of 300 ppm or less. This invention enables suppression of catalyst deterioration and efficient production of 2-chloro-3,3,3-trifluoropropene in a simple and economically advantageous manner on an industrial scale.Type: GrantFiled: October 23, 2012Date of Patent: April 23, 2019Assignee: DAIKIN INDUSTRIES, LTD.Inventors: Yuzo Komatsu, Masayuki Kishimoto
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Patent number: 10173952Abstract: This invention provides a method for stably producing 2,3,3,3-tetrafluoropropene for a long period of time wherein unreacted materials are reused after distillation without liquid-liquid separation to suppress catalyst deactivation.Type: GrantFiled: June 16, 2015Date of Patent: January 8, 2019Assignee: DAIKIN INDUSTRIES, LTD.Inventors: Tatsuya Takakuwa, Kazuhiro Takahashi, Daisuke Karube, Takehiro Chaki, Masayuki Kishimoto, Yuzo Komatsu
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Publication number: 20180370877Abstract: This invention provides a method for stably producing 2,3,3,3-tetrafluoropropene for a long period of time while suppressing catalyst deactivation. This invention provides a method for producing 2,3,3,3-tetrafluoropropene, the method comprising: (d) reacting 2-chloro-3,3,3-trifluoropropene with hydrogen fluoride in the presence of a catalyst; (e) subjecting the reaction mixture obtained in step (d) to distillation to separate the mixture into a first stream comprising 2,3,3,3-tetrafluoropropene as a main component and a second stream comprising unreacted hydrogen fluoride and organic matter containing unreacted 2-chloro-3,3,3-trifluoropropene as main components; and (f) recycling the second stream separated in step (e) above to the reaction of step (d), wherein the distillation of step (e) is performed under conditions that satisfy the relationship of a specific equation.Type: ApplicationFiled: December 19, 2016Publication date: December 27, 2018Applicant: DAIKIN INDUSTRIES, LTD.Inventors: Tatsuya TAKAKUWA, Kazuhiro TAKAHASHI, Daisuke KARUBE, Takehiro CHAKI, Masayuki KISHIMOTO, Yuzo KOMATSU
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Publication number: 20180237365Abstract: The present invention provides a method for producing a fluorine-containing haloolefin compound, the method easily inhibiting catalyst deactivation, and the method being capable of inhibiting a decrease in conversion and selectivity in the reaction, even when the reaction is continued for a long period of time. The present invention is a method for producing a fluorine-containing haloolefin compound via a step of fluorinating a C3 halogenated hydrocarbon. The method comprises a step of removing a stabilizer contained in the C3 halogenated hydrocarbon before the fluorination step.Type: ApplicationFiled: October 8, 2015Publication date: August 23, 2018Applicant: DAIKIN INDUSTRIES, LTD.Inventors: Daisuke KARUBE, Masayuki KISHIMOTO, Yuzo KOMATSU
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Patent number: 10053405Abstract: The present invention provides a method for producing a fluorine-containing haloolefin compound, said method being able to reduce the generation of overly fluorinated compounds as by-products in the production of the fluorine-containing haloolefin compound and produce the target product of high purity at a high yield. The invention also provides a halogenated hydrocarbon composition. The method for producing a haloolefin compound through the step of fluorinating a starting material containing at least one of a pentachloropropane or a tetrachloropropene in the presence of a fluorinating agent in a reactor, according to the present invention, includes the step of adding hydrogen chloride to the reactor. The composition according to the present invention contains: at least one member selected from the group consisting of a pentachloropropane and a tetrachloropropene; and hydrogen chloride.Type: GrantFiled: October 7, 2015Date of Patent: August 21, 2018Assignee: DAIKIN INDUSTRIES, LTD.Inventors: Daisuke Karube, Masayuki Kishimoto, Yuzo Komatsu, Takehiro Chaki
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Publication number: 20170275220Abstract: This invention provides a process for producing 2-chloro-3,3,3-trifluoropropene, comprising: reacting anhydrous hydrogen fluoride with at least one chlorine-containing compound selected from the group consisting of chloropropanes and chloropropenes represented by specific formulas in a gas phase in the presence of a chromium atom-containing fluorination catalyst while heating, the reaction being carried out in the presence of molecular chlorine or with a water content in the reaction system of 300 ppm or less. This invention enables suppression of catalyst deterioration and efficient production of 2-chloro-3,3,3-trifluoropropene in a simple and economically advantageous manner on an industrial scale.Type: ApplicationFiled: June 9, 2017Publication date: September 28, 2017Applicant: DAIKIN INDUSTRIES, LTD.Inventors: Yuzo KOMATSU, Masayuki KISHIMOTO
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Publication number: 20170217860Abstract: The present invention provides a method for producing a fluorine-containing haloolefin compound, said method being able to reduce the generation of overly fluorinated compounds as by-products in the production of the fluorine-containing haloolefin compound and produce the target product of high purity at a high yield. The invention also provides a halogenated hydrocarbon composition. The method for producing a haloolefin compound through the step of fluorinating a starting material containing at least one of a pentachloropropane or a tetrachloropropene in the presence of a fluorinating agent in a reactor, according to the present invention, includes the step of adding hydrogen chloride to the reactor. The composition according to the present invention contains: at least one member selected from the group consisting of a pentachloropropane and a tetrachloropropene; and hydrogen chloride.Type: ApplicationFiled: October 7, 2015Publication date: August 3, 2017Applicant: DAIKIN INDUSTRIES, LTD.Inventors: Daisuke KARUBE, Masayuki KISHIMOTO, Yuzo KOMATSU, Takehiro CHAKI
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Publication number: 20170217859Abstract: This invention provides a method for stably producing 2,3,3,3-tetrafluoropropene for a long period of time wherein unreacted materials are reused after distillation without liquid-liquid separation to suppress catalyst deactivation.Type: ApplicationFiled: June 16, 2015Publication date: August 3, 2017Applicant: DAIKIN INDUSTRIES, LTD.Inventors: Tatsuya TAKAKUWA, Kazuhiro TAKAHASHI, Daisuke KARUBE, Takehiro CHAKI, Masayuki KISHIMOTO, Yuzo KOMATSU
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Patent number: 9422211Abstract: The present invention provides a process for producing 2,3,3,3-tetrafluoropropene, comprising the steps of producing 2-chloro-3,3,3-trifluoropropene by reacting anhydrous hydrogen fluoride with a specific chlorine-containing compound in a gas phase in the presence of a fluorination catalyst while heating; and producing 2,3,3,3-tetrafluoropropene by reacting 2-chloro-3,3,3-trifluoropropene with anhydrous hydrogen fluoride in a gas phase in the presence of a fluorination catalyst while heating, the step of producing 2-chloro-3,3,3-trifluoropropene being performed after the step of producing 2,3,3,3-tetrafluoropropene. According to the process, 2,3,3,3-tetrafluoropropene can be produced with reduced energy and equipment costs in an economically advantageous manner.Type: GrantFiled: August 7, 2013Date of Patent: August 23, 2016Assignee: DAIKIN INDUSTRIES, LTD.Inventors: Kazuhiro Takahashi, Hitoshi Motoyama, Takehiro Chaki, Daisuke Karube, Masayuki Kishimoto
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Patent number: 9162945Abstract: Provided is a process for preparing 2-chloro-3,3,3-trifluoropropene, wherein at least one chlorine-containing compound selected from the group consisting of chloropropane represented by formula (1): CX3CHClCH2Cl, wherein each X is the same or different and each represents Cl or F, chloropropene represented by formula (2): CClY2CCl?CH2, wherein each Y is the same or different and each represents Cl or F, and chloropropene represented by formula (3): CZ2?CClCH2Cl, wherein each Z is the same or different and each represents Cl or F, is used as a starting compound, and said at least one chlorine-containing compound is reacted with hydrogen fluoride while being heated in a gaseous state in the presence of 50 ppm or more of water relative to the chlorine-containing compound. The process of the present invention makes it possible to produce 2-chloro-3,3,3-trifluoropropene (HCFO-1233xf) in a manner that is easily conducted, economically advantageous, and suitable for industrial scale production.Type: GrantFiled: March 21, 2013Date of Patent: October 20, 2015Assignee: DAIKIN INDUSTRIES, LTD.Inventors: Masayuki Kishimoto, Yuzo Komatsu
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Publication number: 20150203421Abstract: The present invention provides a process for producing 2,3,3,3-tetrafluoropropene, comprising the steps of producing 2-chloro-3,3,3-trifluoropropene by reacting anhydrous hydrogen fluoride with a specific chlorine-containing compound in a gas phase in the presence of a fluorination catalyst while heating; and producing 2,3,3,3-tetrafluoropropene by reacting 2-chloro-3,3,3-trifluoropropene with anhydrous hydrogen fluoride in a gas phase in the presence of a fluorination catalyst while heating, the step of producing 2-chloro-3,3,3-trifluoropropene being performed after the step of producing 2,3,3,3-tetrafluoropropene. According to the process, 2,3,3,3-tetrafluoropropene can be produced with reduced energy and equipment costs in an economically advantageous manner.Type: ApplicationFiled: August 7, 2013Publication date: July 23, 2015Inventors: Kazuhiro Takahashi, Hitoshi Motoyama, Takehiro Chaki, Daisuke Karube, Masayuki Kishimoto
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Publication number: 20150057473Abstract: Provided is a process for preparing 2-chloro-3,3,3-trifluoropropene, wherein at least one chlorine-containing compound selected from the group consisting of chloropropane represented by formula (1): CX3CHClCH2Cl, wherein each X is the same or different and each represents Cl or F, chloropropene represented by formula (2): CClY2CCl?CH2, wherein each Y is the same or different and each represents Cl or F, and chloropropene represented by formula (3): CZ2?CClCH2Cl, wherein each Z is the same or different and each represents Cl or F, is used as a starting compound, and said at least one chlorine-containing compound is reacted with hydrogen fluoride while being heated in a gaseous state in the presence of 50 ppm or more of water relative to the chlorine-containing compound. The process of the present invention makes it possible to produce 2-chloro-3,3,3-trifluoropropene (HCFO-1233xf) in a manner that is easily conducted, economically advantageous, and suitable for industrial scale production.Type: ApplicationFiled: March 21, 2013Publication date: February 26, 2015Applicant: DAIKIN INDUSTRIES, LTD.Inventors: Masayuki Kishimoto, Yuzo Komatsu
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Patent number: 8927273Abstract: The present invention provides a method for preparing a cytotoxic lymphocyte characterized in that the method comprises the step of carrying out at least one step selected from induction, maintenance and expansion of a cytotoxic lymphocyte using a medium containing serum and plasma at a total concentration of 0% by volume or more and less than 5% by volume, in the presence of fibronectin, a fragment thereof or a mixture thereof.Type: GrantFiled: August 19, 2004Date of Patent: January 6, 2015Assignee: Takara Bio Inc.Inventors: Mitsuko Ideno, Nobuko Muraki, Kinuko Ogawa, Masayuki Kishimoto, Tatsuji Enoki, Hiroaki Sagawa, Ikunoshin Kato
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Publication number: 20140249336Abstract: This invention provides a process for producing 2-chloro-3,3,3-trifluoropropene, comprising: reacting anhydrous hydrogen fluoride with at least one chlorine-containing compound selected from the group consisting of chloropropanes and chloropropenes represented by specific formulas in a gas phase in the presence of a chromium atom-containing fluorination catalyst while heating, the reaction being carried out in the presence of molecular chlorine or with a water content in the reaction system of 300 ppm or less. This invention enables suppression of catalyst deterioration and efficient production of 2-chloro-3,3,3-trifluoropropene in a simple and economically advantageous manner on an industrial scale.Type: ApplicationFiled: October 23, 2012Publication date: September 4, 2014Inventors: Yuzo Komatsu, Masayuki Kishimoto
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Patent number: 7959161Abstract: In order to make it possible to previously specify which of two members the rubber-like elastic part pinched between the two members attaches to, and to improve workability of rework or the like, an attachment member specifying structure is provided in the rubber-like elastic part so that the rubber-like elastic part is surely detached from one member and attached to the other member at a time of moving the two members apart from each other, preferably by forming a contact area with one member in the rubber-like elastic part smaller than a contact area with the other member, by forming a surface treated portion by matte finishing or the like in a contact area with one member in the rubber-like elastic part, or by forming a projection-like spring portion elastically pressed to one member so as to achieve a spring effect.Type: GrantFiled: June 20, 2003Date of Patent: June 14, 2011Assignee: NOK CorporationInventors: Shota Seki, Masayuki Kishimoto
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Patent number: 7654538Abstract: A high-performance gasket (1) capable of coping with a reduction in size and developing a sealing property without producing a squeeze-out at the time of attachment and using a material having a hardness range of 30 to 80 degrees (JIS durometer type A), wherein the requirement of W1/W0<0.9 is satisfied where the bonding width of a base part (1a) is (W0) and the width thereof at a position half a height from the bonding part of the base part (1a) to the tip end of a main bead part (2) is (W1), the requirement of 1.15<H/W0<1.80 is satisfied where the height from the bonding part of the base part (1a) to the tip end of the main bead part (2) is (H), the requirement of L/W0>=3 is satisfied where the length of the non-bonded portion of the base part (1a) around the cross-section thereof excluding the bonded portion is (L), and the compressibility of the gasket when compressed is 13.5% or higher.Type: GrantFiled: August 29, 2003Date of Patent: February 2, 2010Assignee: NOK CorporationInventors: Nobuyuki Oka, Yoshifumi Kojima, Atsushi Koga, Kenichi Fujimoto, Kazuhisa Senda, Masayuki Kishimoto, Shunji Ueda, Nobuyuki Shintaku
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Publication number: 20090221077Abstract: The present invention provides a method for preparing a cytotoxic lymphocyte characterized in that the method comprises the step of carrying out at least one step selected from induction, maintenance and expansion of a cytotoxic lymphocyte using a medium containing serum and plasma at a total concentration of 0% by volume or more and less than 5% by volume, in the presence of fibronectin, a fragment thereof or a mixture thereof.Type: ApplicationFiled: August 19, 2004Publication date: September 3, 2009Inventors: Mitsuko Ideno, Nobuko Muraki, Kinuko Ogawa, Masayuki Kishimoto, Tatsuji Enoki, Hiroaki Sagawa, Ikunoshin Kato