Patents by Inventor Yasuhide Kawaguchi
Yasuhide Kawaguchi 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: 20150014893Abstract: To provide a process for producing an article having a fine pattern on its surface, by which peeling of a cured resin layer having a fine pattern is suppressed, and a defect of the cured resin layer by repelling when a photocurable resin composition is applied is suppressed.Type: ApplicationFiled: September 25, 2014Publication date: January 15, 2015Applicant: ASAHI GLASS COMPANY, LIMITEDInventors: Kosuke TAKAYAMA, Hiroshi SAKAMOTO, Yuriko KAIDA, Shinji OKADA, Yasuhide KAWAGUCHI
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Photocurable composition and process for producing molded product having fine pattern on its surface
Patent number: 8703837Abstract: To provide a photocurable composition whereby it is possible to obtain a cured product having both a release property and flexibility, and a process whereby it is possible to produce a flexible molded product having on its surface a fine pattern having a reverse pattern of a mold precisely transferred. A photocurable composition comprising a compound (A) having at least two urethane bonds and at least two (meth)acryloyloxy groups and having a mass average molecular weight of less than 2,000, a compound (B) having a fluorine atom and at least one carbon-carbon unsaturated double bond, a compound (C) having one (meth)acryloyloxy group, a photopolymerization initiator (D), and a fluorinated surfactant (E), wherein in the total (100 mass %) of (A) to (E), (A) is from 10 to 50 mass %, (B) is from 5 to 35 mass %, (C) is from 15 to 75 mass %, (D) is from 1 to 12 mass %, and (E) is from 0.1 to 5 mass %, is used.Type: GrantFiled: June 2, 2011Date of Patent: April 22, 2014Assignee: Asahi Glass Company, LimitedInventor: Yasuhide Kawaguchi -
Patent number: 8540925Abstract: A photocurable composition capable of producing a micropattern-formed product efficiently, which is excellent in physical properties such as heat resistance, chemical resistance, releasability and optical characteristics (transmittance and low refractive index), and a process for producing a micropattern-formed product, capable of highly precisely transferring a micropattern of a mold to its surface are provided. A photocurable composition which comprises from 50 to 98 mass % of a monomer containing no fluorine atom and having a viscosity at 25° C. of from 0.1 to 100 mPa·s, from 0.1 to 45 mass % of a fluoromonomer, from more than 0.1 to 20 mass % of a fluorinated surfactant and/or a fluoropolymer and from 1 to 10 mass % of a photopolymerization initiator, and contains substantially no solvent.Type: GrantFiled: October 22, 2007Date of Patent: September 24, 2013Assignee: Asahi Glass Company, LimitedInventors: Yasuhide Kawaguchi, Akihiko Asakawa
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Photocurable composition and process for producing molded product having fine pattern on its surface
Patent number: 8258201Abstract: To provide a photocurable composition whereby it is possible to obtain a cured product provided with both release property and high refractive index, and a process whereby it is possible to produce a molded product having a high refractive index and having on its surface a fine pattern having a reverse pattern of a mold precisely transferred. The photocurable composition comprising from 61 to 90 mass % of a compound (A) having a refractive index of at least 1.55 at a wavelength of 589 nm before curing and having at least two (meth)acryloyloxy groups, from 2 to 15 mass % of a compound (B) having fluorine atoms and at least one carbon-carbon unsaturated double bond (provided that compound (A) is excluded), from 5 to 35 mass % of a compound (C) having one (meth)acryloyloxy group (provided that compound (B) is excluded), and from 1 to 12 mass % of a photopolymerization initiator (D) (provided (A)+(B)+(C)+(D)=100 mass %).Type: GrantFiled: September 23, 2010Date of Patent: September 4, 2012Assignee: Asahi Glass Company, LimitedInventor: Yasuhide Kawaguchi -
Publication number: 20120175821Abstract: To provide a photocurable composition from which a cured product excellent in mold release characteristics and mechanical strength can be obtained, and a method for producing a molded product excellent in durability, with a fine pattern having a reverse pattern of a mold precisely transferred on its surface. A photocurable composition 20 comprising from 15 to 60 mass % of a compound (A) which is an aromatic compound having at least two rings or an alicyclic compound having at least two rings and which has two (meth)acryloyloxy groups, from 5 to 40 mass % of a compound (B) having a fluorine atom and having at least one carbon-carbon unsaturated double bond (excluding the compound (A)), from 10 to 55 mass % of a compound (C) having one (meth)acryloyloxy group (excluding the compound (B)) and from 1 to 12 mass % of a photopolymerization initiator (D) (provided that (A)+(B)+(C)+(D)=100 mass %) is used.Type: ApplicationFiled: March 20, 2012Publication date: July 12, 2012Applicant: ASAHI GLASS COMPANY, LIMITEDInventors: Yasuhide KAWAGUCHI, Kentaro Tsunozaki
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Patent number: 8207242Abstract: To provide a photocurable material which can form a cured product having a high transparency and a high refractive index, a process for producing the material easily, and an article having a high transparency and a high refractive index.Type: GrantFiled: June 3, 2011Date of Patent: June 26, 2012Assignee: Asahi Glass Company, LimitedInventors: Hideo Nomoto, Yasuhide Kawaguchi, Hideshi Sasakura
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Patent number: 8163813Abstract: To provide a photocurable composition from which a cured product excellent in mold release characteristics and mechanical strength can be obtained, and a method for producing a molded product excellent in durability, with a fine pattern having a reverse pattern of a mold precisely transferred on its surface. A photocurable composition 20 comprising from 15 to 60 mass % of a compound (A) which is an aromatic compound having at least two rings or an alicyclic compound having at least two rings and which has two (meth)acryloyloxy groups, from 5 to 40 mass % of a compound (B) having a fluorine atom and having at least one carbon-carbon unsaturated double bond (excluding the compound (A)), from 10 to 55 mass % of a compound (C) having one (meth)acryloyloxy group (excluding the compound (B)) and from 1 to 12 mass % of a photopolymerization initiator (D) (provided that (A)+(B)+(C)+(D)=100 mass %) is used.Type: GrantFiled: August 17, 2009Date of Patent: April 24, 2012Assignee: Asahi Glass Company, LimitedInventors: Yasuhide Kawaguchi, Kentaro Tsunozaki
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Publication number: 20110237703Abstract: To provide a photocurable material which can form a cured product having a high transparency and a high refractive index, a process for producing the material easily, and an article having a high transparency and a high refractive index.Type: ApplicationFiled: June 3, 2011Publication date: September 29, 2011Applicant: ASAHI GLASS COMPANY, LIMITEDInventors: Hideo NOMOTO, Yasuhide Kawaguchi, Hideshi Sasakura
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PHOTOCURABLE COMPOSITION AND PROCESS FOR PRODUCING MOLDED PRODUCT HAVING FINE PATTERN ON ITS SURFACE
Publication number: 20110227257Abstract: To provide a photocurable composition whereby it is possible to obtain a cured product having both a release property and flexibility, and a process whereby it is possible to produce a flexible molded product having on its surface a fine pattern having a reverse pattern of a mold precisely transferred. A photocurable composition 20 comprising a compound (A) having at least two urethane bonds and at least two (meth)acryloyloxy groups and having a mass average molecular weight of less than 2,000, a compound (B) having a fluorine atom and at least one carbon-carbon unsaturated double bond, a compound (C) having one (meth)acryloyloxy group, a photopolymerization initiator (D), and a fluorinated surfactant (E), wherein in the total (100 mass %) of (A) to (E), (A) is from 10 to 50 mass %, (B) is from 5 to 35 mass %, (C) is from 15 to 75 mass %, (D) is from 1 to 12 mass %, and (E) is from 0.1 to 5 mass %, is used.Type: ApplicationFiled: June 2, 2011Publication date: September 22, 2011Applicant: ASAHI GLASS COMPANY, LIMITEDInventor: Yasuhide KAWAGUCHI -
PHOTOCURABLE COMPOSITION AND PROCESS FOR PRODUCING MOLDED PRODUCT HAVING FINE PATTERN ON ITS SURFACE
Publication number: 20110020617Abstract: To provide a photocurable composition whereby it is possible to obtain a cured product provided with both release property and high refractive index, and a process whereby it is possible to produce a molded product having a high refractive index and having on its surface a fine pattern having a reverse pattern of a mold precisely transferred. A photocurable composition comprising from 61 to 90 mass % of a compound (A) having a refractive index of at least 1.55 at a wavelength of 589 nm before curing and having at least two (meth)acryloyloxy groups, from 2 to 15 mass % of a compound (B) having fluorine atoms and at least one carbon-carbon unsaturated double bond (provided that the compound (A) is excluded), from 5 to 35 mass % of a compound (C) having one (meth)acryloyloxy group (provided that the compound (B) is excluded), and from 1 to 12 mass % of a photopolymerization initiator (D) (provided (A)+(B)+(C)+(D)=100 mass %).Type: ApplicationFiled: September 23, 2010Publication date: January 27, 2011Applicant: ASAHI GLASS COMPANY, LIMITEDInventor: Yasuhide KAWAGUCHI -
Patent number: 7767309Abstract: To provide an imprinting mold, of which a coating layer formed on its surface is hardly susceptible to peeling, and a process for its production. An imprinting mold comprising a mold body and a coating layer made of a release agent, formed on the surface of the mold body, wherein the release agent contains a compound of the following formula (1), and a process for its production: wherein R is Rf—X—, both R are the same group, Rf is a perfluoroalkyl group, X is at least one member selected from —(OC3F6)—, —(OC2F4)— and —(OCF2)—, provided that the sum of such units is at least 1, Y is an organic group, is an average of n is from 2 to 10, Z is —Si(R1)m(R2)3-m, R1 is a hydroxyl group or a hydrolysable group, R2 is a hydrogen atom or a hydrocarbon group, and m is from 1 to 3.Type: GrantFiled: July 29, 2009Date of Patent: August 3, 2010Assignee: Asahi Glass Company, LimitedInventors: Katsuya Ueno, Yasuhide Kawaguchi
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Publication number: 20100038831Abstract: To provide a photocurable composition from which a cured product excellent in mold release characteristics and mechanical strength can be obtained, and a method for producing a molded product excellent in durability, with a fine pattern having a reverse pattern of a mold precisely transferred on its surface. A photocurable composition 20 comprising from 15 to 60 mass % of a compound (A) which is an aromatic compound having at least two rings or an alicyclic compound having at least two rings and which has two (meth)acryloyloxy groups, from 5 to 40 mass % of a compound (B) having a fluorine atom and having at least one carbon-carbon unsaturated double bond (excluding the compound (A)), from 10 to 55 mass % of a compound (C) having one (meth)acryloyloxy group (excluding the compound (B)) and from 1 to 12 mass % of a photopolymerization initiator (D) (provided that (A)+(B)+(C)+(D)=100 mass %) is used.Type: ApplicationFiled: August 17, 2009Publication date: February 18, 2010Applicant: ASAHI GLASS COMPANY, LIMITEDInventors: Yasuhide Kawaguchi, Kentaro Tsunozaki
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Publication number: 20090302507Abstract: To provide a mold having optical transparency, release properties, mechanical strength, dimension stability and a highly precise micropattern, and having less deformation of the micropattern; and a process for producing a base material with a transferred micropattern having less deformation of the transferred micropattern, capable of transferring highly precise micropattern of the mold. A mold 10 comprising a transparent substrate (A) 12 having chemical bonds based on the functional groups (x) on the surface having an interlayer (C) 14 formed, having a difference in linear expansion coefficient (absolute value) of less than 30 ppm/° C. from the linear expansion coefficient of the following fluoropolymer (I), and further having a heat distortion temperature of from 100 to 300° C.Type: ApplicationFiled: August 18, 2009Publication date: December 10, 2009Applicant: ASAHI GLASS COMPANY, LIMITEDInventors: Kentaro TSUNOZAKI, Yasuhide Kawaguchi, Yoshihiko Sakane, Shuichi Shoji, Jun Mizuno, Shingo Kataza
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Publication number: 20090285927Abstract: To provide an imprinting mold, of which a coating layer formed on its surface is hardly susceptible to peeling, and a process for its production. An imprinting mold comprising a mold body and a coating layer made of a release agent, formed on the surface of the mold body, wherein the release agent contains a compound of the following formula (1), and a process for its production: wherein R is Rf-X-, both R are the same group, Rf is a perfluoroalkyl group, X is at least one member selected from —(OC3F6)—, —(OC2F4)— and —(OCF2)—, provided that the sum of such units is at least 1, Y is an organic group, is an average of n is from 2 to 10, Z is —Si(R1)m(R2)3-m, R1 is a hydroxyl group or a hydrolysable group, R2 is a hydrogen atom or a hydrocarbon group, and m is from 1 to 3.Type: ApplicationFiled: July 29, 2009Publication date: November 19, 2009Applicant: ASAHI GLASS COMPANY LIMITEDInventors: Katsuya Ueno, Yasuhide Kawaguchi
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Publication number: 20090140468Abstract: To provide a process for producing a hollow cylindrical or solid cylindrical mold having a seamless patterned layer comprising a fluoropolymer. A process for producing a mold comprising a hollow cylindrical or solid cylindrical substrate 12 and a patterned layer comprising a fluoropolymer and having a pattern formed on its surface, which comprises a step of forming a film 32 comprising a fluoropolymer so as to cover the circumferential surface of the substrate 12 thereby to obtain a mold precursor 30; and a step of rolling the mold precursor 30 in such a state that the circumferential surface of the mold precursor 30 is pushed against a surface of a heated original mold 40 having a pattern reverse to the pattern of the patterned layer, to transfer the reversal pattern of the original mold 40 to the film 32 comprising a fluoropolymer to form the patterned layer.Type: ApplicationFiled: February 3, 2009Publication date: June 4, 2009Applicant: ASAHI GLASS COMPANY, LIMITEDInventors: Yasuhide KAWAGUCHI, Akihiko ASAKAWA, Fumiko NONAKA
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Publication number: 20090052030Abstract: The present invention provides a wire-grid polarizer showing high polarization separation ability in the visible light region and is excellent in heat resistance and durability; and a process for producing such a wire-grid polarizer with high productivity, which enables to produce a polarizer of large area. A process for producing a wire-grid polarizer, comprising a step of coating a supporting substrate with a photocurable composition, a step of pressing a mold having a plurality of parallel grooves at a constant pitch against the photocurable composition so that the grooves contact with the photocurable composition, a step of curing the photocurable composition in a state that the mold is pressed against the photocurable composition, to form a light-transmitting substrate having a plurality of ridges corresponding to the grooves of the mold, a step of separating the mold from the light-transmitting substrate, and a step of forming fine metalic wires on the ridges of the light-transmitting substrate.Type: ApplicationFiled: October 7, 2008Publication date: February 26, 2009Applicant: Asahi Glass Company, LimitedInventors: Yuriko KAIDA, Hiroshi Sakamoto, Hiromi Sakurai, Yasuhide Kawaguchi, Akihiko Asakawa, Kazuhiko Niwano
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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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Publication number: 20080107870Abstract: A photocurable composition capable of producing a micropattern-formed product efficiently, which is excellent in physical properties such as heat resistance, chemical resistance, releasability and optical characteristics (transmittance and low refractive index), and a process for producing a micropattern-formed product, capable of highly precisely transferring a micropattern of a mold to its surface are provided. A photocurable composition which comprises from 50 to 98 mass % of a monomer containing no fluorine atom and having a viscosity at 25° C. of from 0.1 to 100 mPa·s, from 0.1 to 45 mass % of a fluoromonomer, from more than 0.1 to 20 mass % of a fluorinated surfactant and/or a fluoropolymer and from 1 to 10 mass % of a photopolymerization initiator, and contains substantially no solvent.Type: ApplicationFiled: October 22, 2007Publication date: May 8, 2008Applicant: ASAHI GLASS CO., LTD.Inventors: Yasuhide KAWAGUCHI, Akihiko Asakawa
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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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Patent number: 7026416Abstract: To provide a fluoropolymer suitable for use as a base polymer for resist materials for excimer lasers having a wavelength of 250 nm or shorter. A fluoropolymer having a monomer unit formed by cyclopolymerization of a fluorinated diene compound represented by the following formula (3), CF2?CFCF2—C(CF3)(R5)—CH2CH?CH2??(3) wherein R5 is either a hydroxyl group blocked by —CHR7—O—R8 or an organic group having the hydroxyl group, and R8 is a cyclic saturated hydrocarbon such as a cycloalkyl group which may have a substituent, or an organic group having the cyclic saturated hydrocarbon.Type: GrantFiled: May 9, 2005Date of Patent: April 11, 2006Assignee: Asahi Glass Company, LimitedInventors: Yasuhide Kawaguchi, Shinji Okada, Yoko Takebe, Osamu Yokokoji, Isamu Kaneko