Patents by Inventor Zen Komiya
Zen Komiya 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: 20050256287Abstract: The present invention discusses a curable liquid resin composition comprising a urethane (meth)acrylate obtained by using as polyol components (i) a polyether polyol comprising a structure according to formula (1): —CH2CH(CH3)O—, (ii) a polyether polyol having a cyclic structure and optionally (iii) one or more other polyols. The present invention also discusses a curable liquid resin composition which produces a cured product having high elasticity and high elongation suitable as a secondary material, in particular, as a ribbon matrix material can be provided.Type: ApplicationFiled: February 17, 2003Publication date: November 17, 2005Inventors: Masanobu Sugimoto, Hideki Sugimoto, Zen Komiya, Takashi Ukachi
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Publication number: 20050244752Abstract: A radiation-curable resin composition for adhesives comprising (A) a bisphenol-type epoxy (meth)acrylate having a hydroxyl group, (B) a polyfunctional (meth)acrylate having an aliphatic cyclic structure or an aromatic cyclic structure other than the component (A), and (C) a photoinitiator, wherein the content of the component (A) and the content of the component (B) in the composition are respectively 30 wt % or more. The radiation-curable resin composition for adhesives of the present invention exhibits excellent adhesion to silver, silicon compound, and aluminum, superior moisture-heat resistance, and fast curability, especially at the edge of the disk, and therefore is very useful in the manufacture of optical disks in comparison with conventional adhesives.Type: ApplicationFiled: March 23, 2003Publication date: November 3, 2005Inventors: Junji Yoshizawa, Atsuya Takahashi, Masahito Mase, Zen Komiya
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Publication number: 20050228063Abstract: The present invention provides a curable composition, comprising: a (meth)acrylate urethane compound derived from a polypropylene glycol or a propyleneoxide ethyleneoxide copolymer glycol having a molecular weight between 1,000 and 13,000 and an amount of unsaturation less than 0.01 meq/g. The liquid curable resin composition of the present invention has improved liquid stability and can produce cured products having superior mechanical characteristics by polymerization. The composition further comprises preferably a primary or secondary amine. The liquid curable resin composition can be used as a coating material for optical fibers, adhesives, and the like. The composition is particularly suitable as a coating material for optical fibers for which long-term stability is required.Type: ApplicationFiled: January 21, 2005Publication date: October 13, 2005Applicants: DSM IP Assets B.V., JSR CorporationInventors: Zen Komiya, Adrianus Abel, Duurt Alkema, Masahito Mase, Takashi Ukachi
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Patent number: 6858657Abstract: The present invention provides a curable composition, comprising: a (meth)acrylate urethane compound derived from a polypropylene glycol or a propyleneoxide ethyleneoxide copolymer glycol having a molecular weight between 1,000 and 13,000 and an amount of unsaturation less than 0.01 meq/g. The liquid curable resin composition of the present invention has improved liquid stability and can produce cured products having superior mechanical characteristics by polymerization. The composition further comprises preferably a primary or secondary amine. The liquid curable resin composition can be used as a coating material for optical fibers, adhesives, and the like. The composition is particularly suitable as a coating material for optical fibers for which long-term stability is required.Type: GrantFiled: January 23, 2003Date of Patent: February 22, 2005Assignees: DSM IP Assets B.V., JSR CorporationInventors: Zen Komiya, Adrianus G. M. Abel, Duurt P. W. Alkema, Masahito Mase, Takashi Ukachi
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Publication number: 20040115436Abstract: The present invention relates to a multilayer coating in which a plurality of photocurable resin cured films are layered on a substrate, wherein at least two adjacent layers comprise the same hindered phenol-type antioxidant.Type: ApplicationFiled: January 28, 2004Publication date: June 17, 2004Inventors: Zen Komiya, Masahito Mase, Junji Yoshizawa, Takashi Ukachi
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Publication number: 20040044145Abstract: A liquid curable resin composition comprising: a) a urethane (meth)acrylate, obtained by the reaction of a diol compound represented by the following formula (1), wherein R1s individually represent a hydrogen atom or a methyl group, R2s individually represent a hydrogen atom, a methyl group, or a propyl group, and m and n individually is a number from 5 to 95, provided that the toal of m and n is 20-100, a diisocyanate compound, and a hydroxyl group-containing (meth)acrylate compound; b) a polysiloxyne having a number average molecular weight of 200-100,000; and c) a monomer polymerizable with the urethane (meth)acrylate (A). To provide a liquid curable resin composition which can produce transparent cured products with smooth surface which does not adhere to other cured surfaces.Type: ApplicationFiled: September 24, 2003Publication date: March 4, 2004Inventors: Masanobu Sugimoto, Yoshiharu Hashiguchi, Zen Komiya, Takashi Ukachi
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Publication number: 20040014835Abstract: The present invention provides a curable composition, comprising: a (meth)acrylate urethane compound derived from a polypropylene glycol or a propyleneoxide ethyleneoxide copolymer glycol having a molecular weight between 1,000 and 13,000 and an amount of unsaturation less than 0.01 meq/g. The liquid curable resin composition of the present invention has improved liquid stability and can produce cured products having superior mechanical characteristics by polymerization. The composition further comprises preferably a primary or secondary amine. The liquid curable resin composition can be used as a coating material for optical fibers, adhesives, and the like. The composition is particularly suitable as a coating material for optical fibers for which long-term stability is required.Type: ApplicationFiled: January 23, 2003Publication date: January 22, 2004Applicant: DSM N.V.Inventors: Zen Komiya, Adrianus G.M. Abel, Duurt P.W. Alkema, Masahito Mase
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Publication number: 20030195271Abstract: Provided is a radiation curable resin composition suitable for use as a primary coating material for optical fibers, which can form a cured coating with a low modulus of elasticity exhibiting a high breaking strength, and small light transmission loss; the coating composition comprises (A) a polymer containing polymerizable unsaturated groups in an average amount of 1.2 per molecule, a urethane bond in a molecular chain, and having a number average molecular weight from 3,000 to 30,000, (B) a poly-functional monomer having two or more polymerizable unsaturated groups, (C) a monomer having one polymerizable unsaturated group, and (D) a radiation active initiator. The secant modulus of the coating is less than 0.15 kg/mm2, the tensile strength is more than 0.15 kg/mm2.Type: ApplicationFiled: February 25, 2003Publication date: October 16, 2003Applicant: DSM N.V. and JSR CorporationInventors: Miyuki Ishikawa, Zen Komiya, Takashi Ukachi
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Publication number: 20030176522Abstract: The invention relates to a liquid curable resin composition capable of forming a ribbon matrix material which can be completely removed from a coloring layer when separating the optical fiber ribbon. A liquid curable resin composition comprising: (1) 30-80 wt. % of a urethane (meth)acrylate produced by reacting (A) a polyol compound, (B) a polyisocyanate compound, and (C) a (meth)acrylate compound containing a hydroxyl group, (2) 0.01-10 wt % of 2-methly-1-[4-(methylthio)phenyl]-2-morpholino-propan-1-one, and (3) 10-70 wt. % of a polymerizable diluent comprising a polymerizable monofunctional vinyl monomer which is copolymerizable with the component (1), wherein a two-layer film, which is obtained by applying the composition to a cured film of a UV-curable resin comprising the compound shown by the above formula (I) and curing the composition, has a T-peel strength of about 1.8 g/cm or less.Type: ApplicationFiled: May 14, 2003Publication date: September 18, 2003Inventors: Zen Komiya, Takashi Ukachi
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Patent number: 6579618Abstract: Provided is a radiation curable resin composition suitable for use as a primary coating material for optical fibers, which can form a cured coating with a low modulus of elasticity exhibiting a high breaking strength, and small light transmission loss; the coating composition comprises (A) a polymer containing polymerizable unsaturated groups in an average amount of 1.2 per molecule, a urethane bond in a molecular chain, and having a number average molecular weight from 3,000 to 30,000, (B) a poly-functional monomer having two or more polymerizable unsaturated groups, (C) a monomer having one polymerizable unsaturated group, and (D) a radiation active initiator. The secant modulus of the coating is less than 0.15 kg/mm2, the tensile strength is more than 0.15 kg/mm2.Type: GrantFiled: June 26, 2000Date of Patent: June 17, 2003Assignees: DSM N.V., JSR CorporationInventors: Miyuki Ishikawa, Zen Komiya, Takashi Ukachi
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Patent number: 6528553Abstract: The present invention provides a curable composition, comprising: a (meth)acrylate urethane compound derived from a polypropylene glycol or a propyleneoxide ethyleneoxide copolymer glycol having a molecular weight between 1,000 and 13,000 and an amount of unsaturation less than 0.01 meq/g. The liquid curable resin composition of the present invention has improved liquid stability and can produce cured products having superior mechanical characteristics by polymerization. The composition further comprises preferably a primary or secondary amine. The liquid curable resin composition can be used as a coating material for optical fibers, adhesives, and the like. The composition is particularly suitable as a coating material for optical fibers for which long-term stability is required.Type: GrantFiled: July 20, 2000Date of Patent: March 4, 2003Assignees: DSM N.V., JSR CorporationInventors: Zen Komiya, Adrianus G. M. Abel, Duurt P. W. Alkema, Masahito Mase, Takashi Ukachi
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Publication number: 20020132118Abstract: A photocurable resin composition with small water absorption, low viscosity, and high curing speed, which is suitable as a coating material for optical fibers. The photocurable resin composition comprising a urethane (meth)acrylate as a polymerizable component, wherein part or all of the urethane (meth)acrylate is produced from 12-hydroxystearic acid triglyceride.Type: ApplicationFiled: January 8, 2001Publication date: September 19, 2002Inventors: Tsuyoshi Hirai, Zen Komiya, Takashi Ukachi
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Publication number: 20020127400Abstract: A curable resin composition comprising an antioxidant, a UV absorber, and a (meth)acrylate oligomer comprising polyether units. Cured products made from the liquid curable resin composition of the present invention have excellent light stability. The resin composition is suitable as a coating material for optical fibers.Type: ApplicationFiled: October 23, 2001Publication date: September 12, 2002Inventors: Hirofumi Uchida, Zen Komiya, Takashi Ukachi
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Patent number: 6359025Abstract: A radiation-curable composition for optical fiber coatings comprising about 10 wt. % to about 90 wt. % of at least one radiation-curable oligomer (A), about 10 wt. % to about 90 wt. % of at least one radiation-curable monomer diluent (B), and an effective amount of at least one photoinitiator (C) represented by formula (1): wherein Ar1 to Ar3 are aromatic groups which may have one or more substitution groups.Type: GrantFiled: February 28, 2000Date of Patent: March 19, 2002Assignee: DSM N.V.Inventors: Paul Eugene Snowwhite, Timothy Edward Bishop, David Michael Szum, Zen Komiya, Miyuki Ishikawa, Takashi Ukachi
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Patent number: 6319603Abstract: A liquid curable resin composition comprising (1) a (meth)acrylate polymer having a weight average molecular weight relative to polystyrene standard of at least about 5,000, (2) a ring-opening polymerizable monomer containing at least one epoxy group, and (3) a cationic photopolymerization initiator is disclosed. The composition produces cured products which exhibit superior heat resistance, excellent mechanical strength, and superb adhesive characteristics, and is suitable for use as a photo-curable adhesive, a photo-curable sealing material, a resin for optical three-dimensional molding, and a coating material for optical fibers, and optical fiber ribbon matrix.Type: GrantFiled: March 2, 1999Date of Patent: November 20, 2001Assignees: DSM N.V., JSR Corporation, Japan Fine Coatings Co., Ltd.Inventors: Zen Komiya, Yoshikazu Yamaguchi, Tsuyoshi Watanabe, Takashi Ukachi
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Patent number: 6309747Abstract: A liquid curable resin composition for optical fibers comprising a polymer (a) having a number average molecular weight of 5,000 or more and containing at least two types of recurring ethylenic units, of which one type has a substituent group containing an ethylenically unsaturated group and the second type is substituted by a group —COOR3 (wherein R3 is a hydrogen atom or a hydrocarbon group having 1-30 carbon atoms), an aryl group, a cyano group, an alkyl group having 1-10 carbon atoms or by one or more halogen atoms.Type: GrantFiled: September 8, 1998Date of Patent: October 30, 2001Assignees: DSM N.V., Japan Synthetic Rubber Co., LTDInventors: Mitsuhito Suwa, Zen Komiya, Yuji Takasugi, Takashi Ukachi
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Publication number: 20010020049Abstract: A curable resin composition comprising a urethane (meth)acrylate having a molecular terminal represented by the following formula (3), 1Type: ApplicationFiled: January 5, 2001Publication date: September 6, 2001Inventors: Hideaki Takase, Zen Komiya, Takashi Ukachi
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Patent number: 6191187Abstract: An optical glass fiber coating composition comprising: (A) a urethane (meth)acrylate polymer, (B) a (meth)acrylate compound represented by the following formula (1), go wherein R1 is a hydrogen or a methyl group (C) a reaction diluent, and (D) a polymerization initiator. The composition has superior storage stability over a long period of time and, at a cured state, exhibits excellent UV resistance, heat resistance, yellowing resistance, and oil resistance.Type: GrantFiled: April 11, 1997Date of Patent: February 20, 2001Assignees: DSM N.V., JSR CorporationInventors: Tetsuya Yamamura, Masakatsu Ukon, Zen Komiya, Takashi Ukachi
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Patent number: 6180741Abstract: A liquid curable resin composition exhibiting superior storing stability and suitable for use as a material for optical fiber ribbon matrix, a bundling material, and a material for up-jacketing fibers. The composition contains a first polydimethylsiloxane compound which contains (i) at least two urethane bonds, (ii) an unreactive organic group attached to at least one end of the first polydimethyl-siloxane, and (iii) a (meth)acrylol group attached to at least one end of the first polydimethylsiloxane, and a second polydimethylsiloxane compound which contains (i) at least two urethane bonds and (ii) an unreactive organic group attached to at least one end of the second polydimethylsiloxane, and optionally a third polysiloxane compound which does not contain urethane bonds.Type: GrantFiled: October 7, 1999Date of Patent: January 30, 2001Assignees: DSM N.V., JSR CorporationInventors: Yoshikazu Yamaguchi, Zen Komiya, Takashi Ukachi
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Patent number: 6136880Abstract: A radiation-curable composition for optical fiber coatings comprising about 10 wt. % to about 90 wt. % of at least one radiation-curable oligomer (A), about 10 wt. % to about 90 wt. % of at least one radiation-curable monomer diluent (B), and an effective amount of at least one photoinitiator (C) represented by formula (1): ##STR1## wherein Ar.sup.1 to Ar.sup.3 are aromatic groups which may have one or more substitution groups.Type: GrantFiled: April 22, 1998Date of Patent: October 24, 2000Assignees: DSM N.V., JSR CorporationInventors: Paul Eugene Snowwhite, Timothy Edward Bishop, David Michael Szum, Zen Komiya, Miyuki Ishikawa, Takashi Ukachi