Patents by Inventor Kazuya Oharu

Kazuya Oharu 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).

  • Patent number: 9617379
    Abstract: The present invention relates to a method for producing a carbonate compound and methacrylic acid or an ester thereof, containing a step (a1) of obtaining hexachloroacetone and hydrogen chloride from acetone and chlorine molecule, a step (a2) of obtaining a dialkyl carbonate and chloroform from hexachloroacetone and an alkyl alcohol, a step (b1) of obtaining 1,1,1-trichloro-2-methyl-2-propanol from chloroform and acetone, a step (b2+b3 or b4) of obtaining methacrylic acid or an ester thereof and hydrogen chloride from 1,1,1-trichloro-2-methyl-2-propanol and water or an alcohol, and a step (c1 or c2) of obtaining chlorine molecule by reacting hydrogen chloride with oxygen molecule.
    Type: Grant
    Filed: August 11, 2016
    Date of Patent: April 11, 2017
    Assignee: ASAHI GLASS COMPANY, LIMITED
    Inventors: Takashi Okazoe, Masayuki Miyazaki, Kazuya Oharu, Tomoyuki Fujita, Shinji Wada, Koichi Murata, Naoko Shirota
  • Publication number: 20160347905
    Abstract: The present invention relates to a method for producing a carbonate compound and methacrylic acid or an ester thereof, containing a step (a1) of obtaining hexachloroacetone and hydrogen chloride from acetone and chlorine molecule, a step (a2) of obtaining a dialkyl carbonate and chloroform from hexachloroacetone and an alkyl alcohol, a step (b1) of obtaining 1,1,1-trichloro-2-methyl-2-propanol from chloroform and acetone, a step (b2+b3 or b4) of obtaining methacrylic acid or an ester thereof and hydrogen chloride from 1,1,1-trichloro-2-methyl-2-propanol and water or an alcohol, and a step (c1 or c2) of obtaining chlorine molecule by reacting hydrogen chloride with oxygen molecule.
    Type: Application
    Filed: August 11, 2016
    Publication date: December 1, 2016
    Applicant: Asahi Glass Company, Limited
    Inventors: Takashi OKAZOE, Masayuki MIYAZAKI, Kazuya OHARU, Tomoyuki FUJITA, Shinji WADA, Koichi MURATA, Naoko SHIROTA
  • Patent number: 8067585
    Abstract: The present invention relates to producing a disulfonyl fluoride compound easily and efficiently by utilizing coupling reaction where a compound (2) is obtained by subjecting a compound (1) wherein Y is a fluorine atom to photocoupling reaction, or subjecting a compound (1) wherein Y is a hydroxyl group, —OMa wherein Ma is an alkali metal atom, or —O(Mb)1/2 wherein Mb is an alkaline earth metal atom to electrolytic coupling reaction, and derivatives such as the following compound (7A) are obtained from the compound (2): FSO2-E-CX2—COY??(1) FSO2-E-CX2—CX2-E-SO2F??(2) wherein E is a single bond, —O—, a C1-20 alkylene group which may contain an etheric oxygen atom, or the like, X is a fluorine atom or the like, and Y is a fluorine atom, a hydroxyl group, or the like.
    Type: Grant
    Filed: October 1, 2007
    Date of Patent: November 29, 2011
    Assignee: Asahi Glass Company, Limited
    Inventors: Masao Iwaya, Kazuya Oharu, Hidekazu Okamoto
  • Patent number: 8053538
    Abstract: To provide an ether composition containing no —OCF2O— structure, having a low viscosity and being excellent in chemical stability in a wide temperature range. An ether composition comprising a polyether compound (A) containing at least two —(OCF2CF2)— units, containing no —OCF2O— structure and having an average molecular weight of higher than 2,000 and at most 20,000, and an ether compound (B) containing at least one —(OCF2CF2)— unit and having an average molecular weight of at most 2,000.
    Type: Grant
    Filed: January 25, 2008
    Date of Patent: November 8, 2011
    Assignee: Asahi Glass Company, Limited
    Inventors: Daisuke Shirakawa, Kazuya Oharu
  • Patent number: 7812086
    Abstract: The current invention relates to a fluorinated elastomer latex containing an aqueous medium, a fluorinated elastomer dispersed in the aqueous medium in an amount of from 10 to 60 mass % and a fluorinated emulsifier represented by the formula (1): C2F5O(CF2CF2O)mCF2COOA (wherein A is a hydrogen atom, an alkali metal or NH4, and m is an integer of from 1 to 3), which employs no perfluorooctanoate emulsifier and which is excellent in dispersion stability of the fluorinated elastomer.
    Type: Grant
    Filed: December 2, 2005
    Date of Patent: October 12, 2010
    Assignee: Asahi Glass Company, Limited
    Inventors: Hiroshi Funaki, Ryuji Seki, Kazuya Oharu, Hiroki Kamiya
  • Patent number: 7795375
    Abstract: It is to provide a compound which has a low vapor pressure and low viscosity, which is less problematic in deterioration during its use and which is useful as e.g. a lubricant, a surface modifier or a surfactant. A fluoropolyether compound represented by the formula (X—)xY(—Z)z, wherein X is a group represented by the formula HO—(CH2CH2O)a.(CH2CH(OH)CH2O)b—(CH2)c—CF2O(CF2CF2O)d— (wherein “a” is an integer of from 0 to 100, b is an integer of from 0 to 100, c is an integer of from 1 to 100, and d is an integer of from 1 to 200), Z is a group represented by the formula RFO(CF2CF2O)g— (wherein RF is e.g. a C1-20 perfluoroalkyl group having an etheric oxygen atom inserted between carbon-carbon atoms, and g is an integer of from 3 to 200), Y is e.g. a (x+z) valent perfluorinated saturated hydrocarbon group, x is an integer of at least 2, z is an integer of at least 0, and (x+z) is an integer of from 3 to 20.
    Type: Grant
    Filed: July 11, 2006
    Date of Patent: September 14, 2010
    Assignee: Asahi Glass Company, Limited
    Inventors: Daisuke Shirakawa, Kazuya Oharu, Takashi Okazoe
  • Patent number: 7649065
    Abstract: To provide a novel fluoroadamantane derivative, a novel polymerizable fluoroadamantane derivative and a novel fluoropolymer, and processes for production thereof. To provide the following compound (3), the following compound (4), a polymer obtained by polymerizing the compound (4) and processes for production thereof: provided that Q represents —CHF— or —CF2— (provided that six Qs may be the same or different), Z represents —H, —F or —CH2OH (provided that three Zs may be the same or different), W represents —H or a C1-10 hydrocarbon group, R represents —H, —F, —CH3 or —CF3, and J represents —H, —F, —CHWOH or —CHWOCOCR?CH2 (provided that three Js may be the same or different).
    Type: Grant
    Filed: October 25, 2006
    Date of Patent: January 19, 2010
    Assignee: Asahi Glass Company, Limited
    Inventors: Shu-zhong Wang, Koichi Murata, Kazuya Oharu, Yoshitomi Morizawa, Osamu Yokokoji, Naoko Shirota
  • Publication number: 20090176954
    Abstract: To provide a novel fluoroadamantane derivative, a novel polymerizable fluoroadamantane derivativeand a novel fluoropolymer, and processes for production thereof. To provide the following compound (3), the following compound (4), a polymer obtained by polymerizing the compound (4) and processes for production thereof: provided that Q represents —CHF— or —CF2— (provided that six Qs may be the same or different), Z represents —H, —F or —CH2OH (provided that three Zs may be the same or different), W represents —H or a C1-10 hydrocarbon group, R represents —H, —F, —CH3 or —CF3, and J represents —H, —F, —CHWOH or —CHWOCOCR?CH2 (provided that three Js may be the same or different).
    Type: Application
    Filed: October 25, 2006
    Publication date: July 9, 2009
    Applicant: ASAHI GLASS COMPANY, LLIMITED
    Inventors: Shu-zhong Wang, Koichi Murata, Kazuya Oharu, Yoshitomi Morizawa, Osamu Yokokoji, Naoko Shirota
  • Patent number: 7557227
    Abstract: A process for producing hexafluoropropylene oxide, which comprises contacting a reaction product containing hexafluoropropylene oxide obtained by reacting hexafluoropropylene with oxygen, with at least one adsorbent selected from activated carbon and the following metal oxides, wherein the metal oxides are oxides of at least one metal selected from Groups 1 and 2 of the Periodic Table, Zr and Si.
    Type: Grant
    Filed: February 12, 2004
    Date of Patent: July 7, 2009
    Assignee: Asahi Glass Company, Limited
    Inventors: Hirokazu Takagi, Kazuya Oharu, Keiichi Ohnishi
  • Patent number: 7501540
    Abstract: The present invention provides a process for producing compounds useful as raw materials for various fluororesins in high yields in few steps from inexpensive and readily available starting materials. The following compound (1) and the following compound (2) are reacted to form the following compound (3), then the compound (3) is fluorinated in a liquid phase to form the following compound (4), and the ester bonds in the compound (4) are dissociated to form the compound (5), or the compound (5) and the compound (6). HOCH2-Q-O—(CH2)3—OH??(1), CRBCOX??(2), RBCOOCH2-Q-O—(CH2)3—OCORB??(3), RBFCOOCF2-QF-O—(CF2)3—OCORBF??(4), FCO-QF-O—(CF2)2—COF??(5), RBFCOF??(6).
    Type: Grant
    Filed: June 29, 2007
    Date of Patent: March 10, 2009
    Assignee: Asahi Glass Company, Limited
    Inventors: Shu-zhong Wang, Takashi Okazoe, Eisuke Murotani, Kunio Watanabe, Daisuke Shirakawa, Kazuya Oharu
  • Patent number: 7488847
    Abstract: The present invention provides a process A1 for producing a compound (5A), which comprises fluorinating a compound (3A-1) by liquid phase fluorination to a compound (4A-1), followed by a decomposition reaction of an ester bond; a process A2 for producing a compound (5A), which comprises fluorinating a compound (3A-2) by liquid phase fluorination to a compound (4A-2), followed by a decomposition reaction of an ester bond; and a process B for producing a compound (5B), which comprises fluorinating a compound (3B) by liquid phase fluorination to a compound (4B), followed by hydrolysis or alcoholysis. Further, the present invention provides a compound (5A) wherein n is 2 to 4, and a compound (5B) wherein n is 3 or 4.
    Type: Grant
    Filed: June 16, 2005
    Date of Patent: February 10, 2009
    Assignee: Asahi Glass Company, Limited
    Inventors: Takashi Okazoe, Kunio Watanabe, Masahiro Ito, Eisuke Murotani, Kazuya Oharu, Shu-zhong Wang, Taiki Hoshino, Kimiaki Kashiwagi
  • Patent number: 7442815
    Abstract: A pellicle which is excellent in transmittance and durability against short wavelength light, and which can be used for photolithography by using e.g. a KrF excimer laser, is provided. A pellicle for exposure to a light having a wavelength of at most 200 nm, which comprises a frame and a pellicle membrane bonded to the frame by means of an adhesive, wherein the pellicle membrane and/or the adhesive comprises a polymer containing repeating units represented by the following formula (1): wherein Q represents a C1-3 polyfluoroalkylene group having a linear structure, or a group having at least one atom selected from hydrogen atoms and fluorine atoms in such a polyfluoroalkylene group substituted by a substituent comprising a polyfluoroalkyl group which may contain an ethereal oxygen atom, or the like, and X represents a hydrogen atom, a fluorine atom or a C1-3 polyfluoroalkyl group which may contain an ethereal oxygen atom.
    Type: Grant
    Filed: February 22, 2005
    Date of Patent: October 28, 2008
    Assignee: Asahi Glass Company, Limited
    Inventors: Ikuo Matsukura, Hidekazu Okamoto, Eisuke Murotani, Kazuya Oharu
  • Patent number: 7425646
    Abstract: A compound represented by the formula AF(—COF)n, provided that AF and n have the following meanings. AF: a fluorinated adamantane residue which is an n-valent group having an n number of hydrogen atoms removed from adamantane (provided that when n is at least 2, the removed hydrogen atoms are hydrogen atoms bonded to different carbon atoms), wherein at least one of the remaining hydrogen atoms is substituted by a fluorine atom, and the remaining hydrogen atoms may be substituted by a C1-6 alkyl group or fluoroalkyl group, and n: an integer of from 1 to 4, provided the when n is 1, AF has at least one hydrogen atom.
    Type: Grant
    Filed: December 15, 2006
    Date of Patent: September 16, 2008
    Assignee: Asahi Glass Company, Limited
    Inventors: Kazuya Oharu, Takashi Okazoe, Eisuke Murotani, Kunio Watanabe, Masahiro Ito
  • Patent number: 7408019
    Abstract: A novel fluorinated ether compound useful as an inert medium is provided. The compound is represented by the following formula (1) such as the compound represented by the following formula (1a) or the compound represented by the following formula (1b): RF1OCFRF2CFRF2ORF1 ??(1) F(CF2)4OCF(CF3)CF(CF3)O(CF2)4F ??(1a) F(CF2)6OCF(CF3)CF(CF3)O(CF2)6F ??(1b) wherein the symbols have the following meanings: RF1 is a C4-7 linear perfluoroalkyl group; and RF2 is a fluorine atom or a trifluoromethyl group.
    Type: Grant
    Filed: April 26, 2006
    Date of Patent: August 5, 2008
    Assignee: Asahi Glass Company, Limited
    Inventors: Masao Iwaya, Kazuya Oharu, Hirokazu Takagi, Hidekazu Okamoto
  • Patent number: 7388114
    Abstract: A novel perfluoropolyether derivative which is less likely to undergo decomposition, which is free from a problem of deterioration during its use, and which is useful as a lubricating oil or a coating agent, is provided. A compound represented by the following formula (1): HO—(CH2CH2O)r. (CH2CH(OH)CH2O)p—CH2CF2O(CF2CF2O)mCF2CH2O——(CH2CH(OH)CH2O)q. (CH2CH2O)s—H ??Formula (1) wherein m represents an integer of from 3 to 200, and each of p, q, r and s which are independent of one another, represents an integer of from 0 to 100, provided that when each of p, q, r and s which are independent of one another, is an integer of at least 1, the arrangement of —(CH2CH2O)— and —(CH2CH(OH)CH2O)— units is not particularly limited, and when one of r and p is an integer of at least 2 and the other is an integer of at least 1, or when one of q and s is an integer of at least 2 and the other is an integer of at least 1, these units may be arranged in a block form or at random.
    Type: Grant
    Filed: May 1, 2007
    Date of Patent: June 17, 2008
    Assignee: Asahi Glass Company, Limited
    Inventors: Daisuke Shirakawa, Takashi Okazoe, Kazuya Oharu, Shu-zhong Wang, Koichi Murata, Kengo Kawahara
  • Publication number: 20080132664
    Abstract: To provide an ether composition containing no —OCF2O— structure, having a low viscosity and being excellent in chemical stability in a wide temperature range. An ether composition comprising a polyether compound (A) containing at least two —(OCF2CF2)— units, containing no —OCF2O— structure and having an average molecular weight of higher than 2,000 and at most 20,000, and an ether compound (B) containing at least one —(OCF2CF2)— unit and having an average molecular weight of at most 2,000.
    Type: Application
    Filed: January 25, 2008
    Publication date: June 5, 2008
    Applicant: Asahi Glass Company, Limited
    Inventors: Daisuke SHIRAKAWA, Kazuya OHARU
  • Publication number: 20080097125
    Abstract: To provide a method for producing a fluorinated compound having a fluorosulfonyl group by coupling reaction. A method for producing a compound represented by the formula [(FSO2-)a(Z-)3-aC—]nR(—COY)b-n, which comprises subjecting a compound represented by the formula (FSO2-)a(Z-)3-aC(—COX) and a compound represented by the formula R(—COY)b to photocoupling reaction when X and Y are a fluorine atom or to electrolytic coupling reaction when X and Y are each independently a hydroxyl group or a group represented by the formula —OM, provided that X and Y are a fluorine atom, a hydroxyl group or a group represented by the formula —OM, Z is a hydrogen atom, a fluorine atom, a chlorine atom or a monovalent organic group, R is a b-valent organic group, M is an alkali metal atom, “a” is an integer of from 1 to 3, and “b” and “n” are each independently an integer of from 1 to 4, provided that b?n.
    Type: Application
    Filed: October 18, 2007
    Publication date: April 24, 2008
    Applicant: ASAHI GLASS CO., LTD.
    Inventors: Masao Iwaya, Kazuya Oharu, Hidekazu Okamoto
  • Publication number: 20080091009
    Abstract: To produce a disulfonyl fluoride compound easily and efficiently by utilizing coupling reaction. Further, to produce useful compounds by converting the above compound. A compound (2) is obtained by subjecting a compound (1) in which Y is a fluorine atom to photocoupling reaction or the compound wherein Y is a hydroxyl group, —OMa (wherein Ma is an alkali metal atom) or —O(Mb)1/2 wherein Mb is an alkaline earth metal atom) to electrolytic coupling reaction. Further, derivatives such as the following compound (7A) obtainable from the compound (2) are provided. FSO2-E-CX2—COY??(1) FSO2-E-CX2—CX2-E-SO2F??(2) wherein E is a single bond, —O—, a C1-20 alkylene group which may contain an etheric oxygen atom, or the like, X is a fluorine atom or the like, and Y is a fluorine atom, a hydroxyl group, or the like.
    Type: Application
    Filed: October 1, 2007
    Publication date: April 17, 2008
    Applicant: ASAHI GLASS COMPANY, LIMITED
    Inventors: Masao IWAYA, Kazuya Oharu, Hidekazu Okamoto
  • Publication number: 20070287856
    Abstract: The present invention provides a process for producing compounds useful as raw materials for various fluororesins in high yields in few steps from inexpensive and readily available starting materials. The following compound (1) and the following compound (2) are reacted to form the following compound (3), then the compound (3) is fluorinated in a liquid phase to form the following compound (4), and the ester bonds in the compound (4) are dissociated to form the compound (5), or the compound (5) and the compound (6). HOCH2-Q-O—(CH2)3—OH??(1), CRBCOX??(2), RBCOOCH2-Q-O—(CH2)3—OCORB??(3), RBCOOCF2-Q-O—(CF2)3—OCORBF??(4), FCO-QF-O—(CF2)2—COF??(5), RBFCOF??(6).
    Type: Application
    Filed: June 29, 2007
    Publication date: December 13, 2007
    Applicant: Asahi Glass Company, Limited
    Inventors: Shu-zhong WANG, Takashi Okazoe, Eisuke Murotani, Kunio Watanabe, Daisuke Shirakawa, Kazuya Oharu
  • Patent number: 7301052
    Abstract: The present invention provides a process for producing compounds useful as raw materials for various fluororesins in high yields in few steps from inexpensive and readily available starting materials. The following compound (1) and the following compound (2) are reacted to form the following compound (3), then the compound (3) is fluorinated in a liquid phase to form the following compound (4), and the ester bonds in the compound (4) are dissociated to form the compound (5), or the compound (5) and the compound (6). HOCH2-Q-O—(CH2)3—OH,??(1) CRBCOX,??(2) RBCOOCH2-Q-O—(CH2)3—OCORB,??(3) RBFCOOCF2-QF-O—(CF2)3—OCORBF,??(4) FCO-QF-O—(CF2)2—COF,??(5) RBFCOF.
    Type: Grant
    Filed: August 19, 2005
    Date of Patent: November 27, 2007
    Assignee: Asahi Glass Company, Linited
    Inventors: Shu-zhong Wang, Takashi Okazoe, Eisuke Murotani, Kunio Watanabe, Daisuke Shirakawa, Kazuya Oharu