Patents by Inventor Kazuyuki Itano
Kazuyuki Itano 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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Patent number: 8735511Abstract: A curing resin composition that cures in two stages: photo cure and thermal cure, hardly contaminates a liquid or liquid crystals when in contact with, and provides high adhesive strength, particularly a curing composition that photocures sufficiently even when shadowed by TFT wires, a black matrix, etc. in photocuring; and a sealant, a sealant for ODF (one-drop-fill), and an LCD containing the curing resin composition.Type: GrantFiled: April 20, 2011Date of Patent: May 27, 2014Assignee: Adeka CorporationInventors: Hirokatsu Shinano, Hiroya Fukunaga, Kazuyuki Itano
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Patent number: 8410188Abstract: A sealant for a one drop fill process is characterized by curing through two steps consisting of photocure using visible light from which 400 nm or shorter wavelengths are cut off and thermal cure and, when in contact with a liquid crystal composition, is less contaminating to the liquid crystal composition with a photo radical initiator, and exhibits high adhesive strength to a substrate. The sealant contains (1) a titanocene photo radical initiator, (2) a photocuring resin, (3) a latent epoxy curing agent and, if necessary, (4) a monomer having at least two glycidyl ether groups per molecule as a thermosetting resin.Type: GrantFiled: June 24, 2010Date of Patent: April 2, 2013Assignee: Adeka CorporationInventors: Hirokatsu Shinano, Hiroya Fukunaga, Kazuyuki Itano
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Patent number: 8337965Abstract: A sealant for a one drop fill process of the invention contains the following components (1), (2), (3), and (4): (1) a curing agent composed of a reaction product produced by reacting an acid compound and a polyamine containing, within its molecule, at least one active hydrogen and at least two nitrogen atoms; (2) a heat-curable resin; (3) an acylphosphine-based photoinitiator; and (4) a photo-curable resin. A heat-curable resin containing a bisphenol A propylene oxide-modified epoxy resin is preferably used as the heat-curable resin (2), and a photo-curable resin containing a bisphenol A acrylate-modified resin is preferably used as the photo-curable resin (4).Type: GrantFiled: January 5, 2010Date of Patent: December 25, 2012Assignee: Adeka CorporationInventors: Kazuyuki Itano, Hiroya Fukunga, Hirokatsu Shinano, Rieko Hamada, Takahiro Otsuka
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Publication number: 20120115972Abstract: A curing resin composition that cures in two stages: photo cure and thermal cure, hardly contaminates a liquid or liquid crystals when in contact with, and provides high adhesive strength, particularly a curing composition that photocures sufficiently even when shadowed by TFT wires, a black matrix, etc. in photocuring; and a sealant, a sealant for ODF (one-drop-fill), and an LCD containing the curing resin composition. The curing resin composition contains (A) an oxime ester radical initiator represented by general formula (I), where symbols are as defined in the description, (B) a radical curing resin, (C) a latent epoxy curing agent, and (D) an epoxy resin.Type: ApplicationFiled: April 20, 2011Publication date: May 10, 2012Applicant: ADEKA CORPORATIONInventors: Hirokatsu Shinano, Hiroya Fukunaga, Kazuyuki Itano
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Patent number: 8057701Abstract: A trifunctional (meth)acrylate compound of general formula (I) is provided The compound is capable of retaining a liquid crystal phase at or below 30 ° C. Polymerizable compositions containing a compound of formula (I) are also provided.Type: GrantFiled: March 10, 2009Date of Patent: November 15, 2011Assignee: Adeka CorporationInventors: Hirokatsu Shinano, Satoshi Yanagisawa, Masatomi Irisawa, Kazuyuki Itano
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Publication number: 20110218267Abstract: A sealant for a one drop fill process is characterized by curing through two steps consisting of photocure using visible light from which 400 nm or shorter wavelengths are cut off and thermal cure and, when in contact with a liquid crystal composition, is less contaminating to the liquid crystal composition with a photo radical initiator, and exhibits high adhesive strength to a substrate. The sealant contains (1) a titanocene photo radical initiator, (2) a photocuring resin, (3) a latent epoxy curing agent and, if necessary, (4) a monomer having at least two glycidyl ether groups per molecule as a thermosetting resin.Type: ApplicationFiled: June 24, 2010Publication date: September 8, 2011Applicant: ADEKA CORPORATIONInventors: Hirokatsu Shinano, Hiroya Fukunaga, Kazuyuki Itano
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Patent number: 7919009Abstract: A polymerizable compound represented by general formula (1) of the invention has good solvent solubility and excellent alignment control properties and optical characteristics. In formula (1), M1 and M2 are each hydrogen or methyl; X1 and X2 are each a single bond, or an optionally branched C1-10 alkylene, alkyleneoxy or alkyleneoxycarbonyloxy; X3 is optionally branched C1-10 alkylene; Y1 and Y2 are each an ester linkage, etc.; and rings A, B, C, and D are each a cyclic structure, such as 2,6-naphthlene.Type: GrantFiled: December 18, 2007Date of Patent: April 5, 2011Assignee: Adeka CorporationInventors: Kazuyuki Itano, Hiroya Fukunaga, Masatomi Irisawa, Tatsunori Kobayashi, Mineki Hasegawa
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Publication number: 20110054061Abstract: A sealant for a one drop fill process of the invention contains the following components (1), (2), (3), and (4): (1) a curing agent composed of a reaction product produced by reacting an acid compound and a polyamine containing, within its molecule, at least one active hydrogen and at least two nitrogen atoms; (2) a heat-curable resin; (3) an acylphosphine-based photoinitiator; and (4) a photo-curable resin. A heat-curable resin containing a bisphenol A propylene oxide-modified epoxy resin is preferably used as the heat-curable resin (2), and a photo-curable resin containing a bisphenol A acrylate-modified resin is preferably used as the photo-curable resin (4).Type: ApplicationFiled: January 5, 2010Publication date: March 3, 2011Applicant: ADEKA CORPORATIONInventors: Kazuyuki Itano, Hiroya Fukunga, Hirokatsu Shinano, Rieko Hamada, Takahiro Otsuka
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Publication number: 20110037025Abstract: A trifunctional (meth)acrylate compound represented by the following general formula (I); and a polymerizable composition containing the compound. The compound preferably is a compound in which ring A1, ring A2, and ring A3 in general formula (I) each is a benzene ring or naphthalene ring and at least one of the ring A1, ring A2, and ring A3 is a naphthalene ring, or is a compound in which X1, X2, and X3 each is —COO— or —OCO—. More preferred is a compound in which ring A3 is a naphthalene ring. Even more preferred is the compound which by itself can retain a liquid-crystal phase at 30° C. and lower temperatures. (In the formula, M1, M2, and M3 each represents methyl, etc.; rings A1, A2, and A3 each represents a benzene ring, naphthalene ring, etc.; Z1, Z2, and Z3 each represents C1-6 alkyl, etc.; X1, X2, and X3 each represents —COO—, —OCO—, etc.; Y1 and Y2 each represents -L1-, and Y3 represents -L2-, etc.Type: ApplicationFiled: March 10, 2009Publication date: February 17, 2011Applicant: ADEKA CORPORATIONInventors: Hirokatsu Shinano, Satoshi Yanagisawa, Masatomi Irisawa, Kazuyuki Itano
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Publication number: 20100032621Abstract: A polymerizable compound represented by general formula (1) of the invention has good solvent solubility and excellent alignment control properties and optical characteristics. In formula (1), M1 and M2 are each hydrogen or methyl; X1 and are each a single bond, or an optionally branched C1-10 alkylene, alkyleneoxy or alkyleneoxycarbonyloxy; X3 is optionally branched C1-10 alkylene; Y1 and Y2 are each an ester linkage, etc.; and rings A, B, C, and D are each a cyclic structure, such as 2,6-naphthlene.Type: ApplicationFiled: December 18, 2007Publication date: February 11, 2010Applicant: Adeka CorporationInventors: Kazuyuki Itano, Hiroya Fukunaga, Masatomi Irisawa, Tatsunori Kobayashi, Mineki Hasegawa