Patents by Inventor Daisuke Shirakawa
Daisuke Shirakawa 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: 20090061360Abstract: To provide a resist protective film material for immersion lithography. An alkali soluble resist protective film material for immersion lithography, which comprises a polymer (F) containing repeating units (FU) formed by polymerizing a polymerizable compound (fm) having a fluorine-containing bridged cyclic structure. For example, repeating units (FU) are repeating units formed by polymerizing a compound (f) selected from the group consisting of the following formulae (f1) to (f4) (RF represents H, F, a C1-3 alkyl group or a C1-3 fluoroalkyl group, and XF represents F, OH or CH2OH.Type: ApplicationFiled: October 20, 2008Publication date: March 5, 2009Applicant: Asahi Glass Company, LimitedInventors: Yoko Takebe, Shu-zhong Wang, Osamu Yokokoji, Naoko Shirota, Yasuhisa Matsukawa, Daisuke Shirakawa
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Patent number: 7441745Abstract: A mold and a process for producing a base material having a transferred micropattem, wherein the mold comprises a transparent substrate having chemical bonds resulting from functional groups (x) on a surface on which an interlayer (A) is formed, the interlayer (A) present between the surface of the transparent substrate and a surface layer (B) which has a micropattem for molding a photocurable resin, wherein interlayer (A) is a layer made of a fluoropolymer (1) which is a fluoropolymer having a fluorinated alicyclic structure in its main chain and which has reactive groups (y) reactive with functional groups (x), and surface layer (B) is a layer made of a fluoropolymer (2) which is a fluoropolymer having a fluorinated alicyclic structure in its main chain and which has substantially no reactive groups (y).Type: GrantFiled: May 29, 2007Date of Patent: October 28, 2008Assignee: Asahi Glass Company, LimitedInventors: Yasuhide Kawaguchi, Yoshihiko Sakane, Daisuke Shirakawa
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Patent number: 7439279Abstract: To provide a coating composition which forms a coating film having excellent fingerprint removability and having favorable abrasion resistance and transparency, and a molded product having a coating film made of a cured product of the composition. An active energy ray curable coating composition comprising an active energy ray curable polymerizable monomer (A), a water and oil repellency-imparting agent (B) and an active energy ray polymerization initiator (C), wherein the water and oil repellency-imparting agent (B) contains a water and oil repellency-imparting agent (B-T) having a moiety (b-1) exerting water and oil repellency, an active energy ray curable functional group (b-2) and a moiety (b-3) excellent in compatibility with the polymerizable monomer (A) and a molded product having a coating film made of a cured product of the composition.Type: GrantFiled: May 13, 2005Date of Patent: October 21, 2008Assignee: Asahi Glass Company, LimitedInventors: Satoshi Kondo, Daisuke Shirakawa, Toshihiko Higuchi, Hirotsugu Yamamoto
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Patent number: 7388114Abstract: 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: GrantFiled: May 1, 2007Date of Patent: June 17, 2008Assignee: Asahi Glass Company, LimitedInventors: Daisuke Shirakawa, Takashi Okazoe, Kazuya Oharu, Shu-zhong Wang, Koichi Murata, Kengo Kawahara
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Publication number: 20080132664Abstract: 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: ApplicationFiled: January 25, 2008Publication date: June 5, 2008Applicant: Asahi Glass Company, LimitedInventors: Daisuke SHIRAKAWA, Kazuya OHARU
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Publication number: 20070287856Abstract: 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: ApplicationFiled: June 29, 2007Publication date: December 13, 2007Applicant: Asahi Glass Company, LimitedInventors: Shu-zhong WANG, Takashi Okazoe, Eisuke Murotani, Kunio Watanabe, Daisuke Shirakawa, Kazuya Oharu
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Patent number: 7301052Abstract: 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: GrantFiled: August 19, 2005Date of Patent: November 27, 2007Assignee: Asahi Glass Company, LinitedInventors: Shu-zhong Wang, Takashi Okazoe, Eisuke Murotani, Kunio Watanabe, Daisuke Shirakawa, Kazuya Oharu
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Publication number: 20070228619Abstract: A mold and a process for producing a base material having a transferred micropattern are provided. A mold having a micropattern for molding a photocurable resin, which comprises a transparent substrate having chemical bonds resulting from functional groups (x) on a surface on which the following interlayer (A) is formed; the interlayer (A) present between said surface of the transparent substrate and the following surface layer (B); and the following surface layer (B) having a micropattern: Interlayer (A): a layer made of a fluoropolymer (1) which is a fluoropolymer having a fluorinated alicyclic structure in its main chain and which has reactive groups (y) reactive with said functional groups (x) Surface layer (B): a layer made of a fluoropolymer (2) which is a fluoropolymer having a fluorinated alicyclic structure in its main chain and which has substantially no reactive groups (y).Type: ApplicationFiled: May 29, 2007Publication date: October 4, 2007Applicant: Asahi Glass Company, LimitedInventors: Yasuhide Kawaguchi, Yoshihiko Sakane, Daisuke Shirakawa
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Publication number: 20070203366Abstract: 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: ApplicationFiled: May 1, 2007Publication date: August 30, 2007Applicant: ASAHI GLASS COMPANY LIMITEDInventors: Daisuke SHIRAKAWA, Takashi Okazoe, Kazuya Oharu, Shu-zhong Wang, Koichi Murata, Kengo Kawahara
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Patent number: 7230140Abstract: 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: GrantFiled: April 18, 2005Date of Patent: June 12, 2007Assignee: Asahi Glass Company, LimitedInventors: Daisuke Shirakawa, Takashi Okazoe, Kazuya Oharu, Shu-zhong Wang, Koichi Murata, Kengo Kawahara
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Publication number: 20070116990Abstract: To present a lubricant solution for magnetic recording media, which comprises a lubricant excellent in chemical stability and capable of imparting excellent lubricity, and a solvent having a suitable dissolving power for the lubricant and being excellent in drying properties and not influential over the ozone layer. A lubricant solution comprising a lubricant and a fluorinated alkyl ether. For example, as the lubricant, a compound of the formula (HO—CH2—CF2(OCF2CF2)dO—)3Y wherein Y is a trivalent perfluorohydrocarbon group, is used, and as the fluorinated alkyl ether, 1,1,2,2-tetrafluoroethyl-2,2,2-trifluoroethyl ether is used.Type: ApplicationFiled: January 24, 2007Publication date: May 24, 2007Applicant: ASAHI GLASS CO., LTD.Inventors: Daisuke SHIRAKAWA, Hidekazu OKAMOTO
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Patent number: 7161025Abstract: The present invention provides a method for producing industrially useful fluorine-containing compounds such as a fluorinated ester compound and an acid fluoride compound. Namely, the present invention resides in a method for producing a fluorinated ester compound, which comprises fluorinating an ester compound which is an ester of a compound having hydroxyl group(s) with a compound having acyl fluoride group(s) and which has a structure which can be fluorinated, in a liquid phase to produce a fluorinated ester compound, wherein the fluorination is carried out in the form of a liquid mixture of the ester compound and the compound having acyl fluoride group(s).Type: GrantFiled: April 14, 2005Date of Patent: January 9, 2007Assignee: Asahi Glass Company, LimitedInventors: Takashi Okazoe, Kunio Watanabe, Shin Tatematsu, Koichi Yanase, Yasuhiro Suzuki, Daisuke Shirakawa
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Publication number: 20060252910Abstract: 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 C120 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: ApplicationFiled: July 11, 2006Publication date: November 9, 2006Applicant: ASAHI GLASS COMPANY, LIMITEDInventors: Daisuke Shirakawa, Kazuya Oharu, Takashi Okazoe
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Patent number: 7105697Abstract: The present invention provides a process whereby fluorine atom-containing sulfonyl fluoride compound(s) useful as e.g. materials for ion-exchange membranes, can be produced efficiently and at low cost without structural limitations while solving the difficulties in production. Namely, the present invention provides a process which comprises reacting XSO2RA-E1 (1) with RB-E2 (2) to form XSO2RA-E-RB (3), then reacting (3) with fluorine in a liquid phase to form FSO2RAF-EF-RBF (4), and further, decomposing the compound to obtain FSO2RAF-EF1 (5), wherein RA is a bivalent organic group, E1 is a monovalent reactive group, RB is a monovalent organic group, E2 is a monovalent reactive group which is reactive with E1, E is a bivalent connecting group formed by the reaction of E1 with E2, RAF is a bivalent organic group formed by the fluorination of RA, etc., RBF is the same group as RB, etc., EF is a bivalent connecting group formed by the fluorination of E, etc.Type: GrantFiled: March 25, 2004Date of Patent: September 12, 2006Assignee: Asahi Glass Company, LimitedInventors: Masahiro Ito, Kunio Watanabe, Takashi Okazoe, Isamu Kaneko, Daisuke Shirakawa
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Patent number: 7053238Abstract: A fluorinated polyvalent carbonyl compound is produced by an economically advantageous method from inexpensive materials without requiring a complicated synthetic process step. Namely, the present invention comprises reacting a polyvalent alcohol having at least two kinds of alcohol skeletons selected among a primary alcohol, a secondary alcohol and a tertiary alcohol, with an acid halide to obtain a polyvalent ester compound, fluorinating it in a liquid phase to obtain a perfluorinated polyvalent ester compound, and cleaving the ester bonds derived from primary and secondary alcohols in the perfluoropolyvalent ester compound to obtain a fluorinated polyvalent carbonyl compound.Type: GrantFiled: July 15, 2004Date of Patent: May 30, 2006Assignee: Asahi Glass Company, LimitedInventors: Takashi Okazoe, Kunio Watanabe, Daisuke Shirakawa, Masahiro Ito, Shin Tatematsu
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Patent number: 7034179Abstract: The present invention provides a method for producing industrially useful fluorine-containing compounds such as a fluorinated ester compound and an acid fluoride compound. Namely, the present invention resides in a method for producing a fluorinated ester compound, which comprises fluorinating an ester compound which is an ester of a compound having hydroxyl group(s) with a compound having acyl fluoride group(s) and which has a structure which can be fluorinated, in a liquid phase to produce a fluorinated ester compound, wherein the fluorination is carried out in the form of a liquid mixture of the ester compound and the compound having acyl fluoride group(s).Type: GrantFiled: March 27, 2003Date of Patent: April 25, 2006Assignee: Asahi Glass Company, LimitedInventors: Takashi Okazoe, Kunio Watanabe, Shin Tatematsu, Koichi Yanase, Yasuhiro Suzuki, Daisuke Shirakawa
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Publication number: 20060030733Abstract: 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: ApplicationFiled: August 19, 2005Publication date: February 9, 2006Applicant: ASAHI GLASS COMPANY, LIMITEDInventors: Shu-Zhong Wang, Takashi Okazoe, Eisuke Murotani, Kunio Watanabe, Daisuke Shirakawa, Kazuya Oharu
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Publication number: 20050288385Abstract: To provide a coating composition which forms a coating film having excellent fingerprint removability and having favorable abrasion resistance and transparency, and a molded product having a coating film made of a cured product of the composition. An active energy ray curable coating composition comprising an active energy ray curable polymerizable monomer (A), a water and oil repellency-imparting agent (B) and an active energy ray polymerization initiator (C), wherein the water and oil repellency-imparting agent (B) contains a water and oil repellency-imparting agent (B-T) having a moiety (b-1) exerting water and oil repellency, an active energy ray curable functional group (b-2) and a moiety (b-3) excellent in compatibility with the polymerizable monomer (A) and a molded product having a coating film made of a cured product of the composition.Type: ApplicationFiled: May 13, 2005Publication date: December 29, 2005Applicant: ASAHI GLASS COMPANY LIMITEDInventors: Satoshi Kondo, Daisuke Shirakawa, Toshihiko Higuchi, Hirotsugu Yamamoto
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Patent number: 6969776Abstract: The present invention provides a process whereby fluorinated ketones of various structures can be produced by short process steps and which is useful as an industrial production process.Type: GrantFiled: June 17, 2004Date of Patent: November 29, 2005Assignee: Asahi Glass Company, LimitedInventors: Takashi Okazoe, Kunio Watanabe, Masahiro Ito, Daisuke Shirakawa, Shin Tatematsu, Hirokazu Takagi
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Patent number: 6956138Abstract: The present invention provides a method for obtaining a compound useful as a raw material for various fluororesins in high yield by a short process by using a starting material which is inexpensive and readily available.Type: GrantFiled: April 28, 2004Date of Patent: October 18, 2005Assignee: Asahi Glass Company, LimitedInventors: Takashi Okazoe, Kunio Watanabe, Shin Tatematsu, Masahiro Ito, Daisuke Shirakawa, Masao Iwaya, Hidekazu Okamoto