Patents by Inventor Ryuichi Matsuoka
Ryuichi Matsuoka 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: 12110364Abstract: Provided is a poly(arylene ether ketone) resin which inhibits reactions such as molecular weight extension and crosslinking in a high-temperature molten state and which is excellent in melt viscosity stability and molding processability. The poly(arylene ether ketone) resin contains an alkylsulfonyl group represented by general formula (1). In the formula, R is an alkyl group containing one to four carbon atoms.Type: GrantFiled: December 5, 2019Date of Patent: October 8, 2024Assignee: DIC CorporationInventors: Ryuichi Matsuoka, Masaya Masumoto, Katsuya Maeyama
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Publication number: 20240317916Abstract: An object is to provide a curable resin composition that can provide its cured product with excellent heat resistance (a high glass transition temperature) and dielectric properties (low dielectric properties) and the cured product. Specifically, provided is a curable resin composition containing a curable resin (A) having a structure represented by General Formula (1) below and a curable resin (B1) having a structure represented by General Formula (2-1) below and/or a curable compound (B2) represented by General Formula (2-2) below: in General Formula (1) above, the details of the substituents and the number of the substituents are as described in the present specification. in General Formulae (2-1) and (2-2) above, the details of the substituents and the number of the substituents are as described in the present specification.Type: ApplicationFiled: June 30, 2022Publication date: September 26, 2024Applicant: DIC CorporationInventors: Ryuichi Matsuoka, Hiroyoshi Kannari, Lichen Yang
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Publication number: 20240052093Abstract: An object is to provide a cured product and the like with excellent fire retardancy, heat resistance, and dielectric properties by using a curable resin having a specific structure and a curable resin composition containing the curable resin, a radical polymerization initiator, and a fire retardant. Specifically provided are a curable resin represented by General Formula (1) and a curable resin composition containing the curable resin, a radical polymerization initiator (B), and a fire retardant (C): in the formula, Ra and Rb each independently represent an alkyl group, an aryl group, an aralkyl group, or a cycloalkyl group with a carbon number of 1 to 12; k indicates an integer of 0 to 3; X represents a hydrocarbon group; and Y represents General Formula (2) or (3) below: in the formula, Z represents an alicyclic group, an aromatic group, or a heterocyclic group.Type: ApplicationFiled: June 24, 2021Publication date: February 15, 2024Applicant: DIC CorporationInventors: Ryuichi MATSUOKA, Lichen YANG, Hiroyoshi KANNARI
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Publication number: 20230391905Abstract: An object is to provide a cured product superior in heat resistance (high glass transition temperature) and dielectric properties (low dielectric properties) by using a curable resin having a specific structure and superior in storage stability. Specifically, a curable resin represented by general formula (1) below and having a hydroxyl group concentration of 0.005 to 3800 mmol/kg is provided.Type: ApplicationFiled: November 18, 2021Publication date: December 7, 2023Applicant: DIC CorporationInventors: Ryuichi MATSUOKA, Lichen YANG, Hiroyoshi KANNARI
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Publication number: 20230272156Abstract: An object is to provide a cured product having excellent heat resistance and dielectric properties (low dielectric properties) and prepregs, circuit boards, build-up films, semiconductor sealing materials, and semiconductor devices having these pieces of performance by using a curable resin having a specific structure. Specifically, provided is a curable resin having a structural unit (1) represented by General Formula (1) below and a terminal structure (2) represented by General Formula (2) below. In Formulae (1) and (2) above, the details of R1, R2, R3, k, and X are as described herein.Type: ApplicationFiled: May 13, 2021Publication date: August 31, 2023Applicant: DIC CorporationInventors: Ryuichi MATSUOKA, Lichen YANG, Hiroyoshi KANNARI
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Publication number: 20230242691Abstract: An object is to provide a cured product, for example, that is made with a curable resin composition containing a curable resin having a particular structure, a radical polymerization initiator, and a flame retardant and therefore is superior in flame retardancy, heat resistance (high glass transition temperature), and dielectric properties (low dielectric properties). Specifically, there are provided a curable resin represented by general formula (1) below and a curable resin composition containing this curable resin, a radical polymerization initiator (B), and a flame retardant (C). (In general formula (1) above, Y is a substituent represented by general formula (2) below, and the details of the substituents and the numbers of substituents presented in general formulae (1) and (2) above are as described in the text.Type: ApplicationFiled: May 20, 2021Publication date: August 3, 2023Applicant: DIC CorporationInventors: Lichen YANG, Ryuichi MATSUOKA, Hiroyoshi KANNARI
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Publication number: 20230159695Abstract: Provided is a cured product having excellent heat resistance and dielectric properties (low dielectric properties) by using a curable resin characterized by having an indane skeleton. Specifically, provided are a curable resin having an indane skeleton represented by the following formula, a resin composition containing the same, and a cured product thereof. X is a (meth)acryloyl group; Ra and Rb are each an alkyl group, an aryl group, an aralkyl group, or a cycloalkyl group with a carbon atom number of 1 to 12; j is an integer of 1 to 3; k and 1 are each an integer of 0 to 4; n is an average number of repeating units, being 0.5 to 20; and m is an integer of 0 to 2.Type: ApplicationFiled: March 11, 2021Publication date: May 25, 2023Applicant: DIC CorporationInventors: Lichen YANG, Ryuichi MATSUOKA, Hiroyoshi KANNARI
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Publication number: 20220056210Abstract: Provided is a poly(arylene ether ketone) resin which inhibits reactions such as molecular weight extension and crosslinking in a high-temperature molten state and which is excellent in melt viscosity stability and molding processability. The poly(arylene ether ketone) resin contains an alkylsulfonyl group represented by general formula (1). In the formula, R is an alkyl group containing one to four carbon atoms.Type: ApplicationFiled: December 5, 2019Publication date: February 24, 2022Applicant: DIC CorporationInventors: Ryuichi Matsuoka, Masaya Masumoto, Katsuya Maeyama
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Publication number: 20210171710Abstract: A polyarylene ether ketone resin has a repeating unit (1-1) represented by general formula (1-1) below and a repeating unit (2-1) represented by general formula (2-1) below. In the formulae, R is a hydrogen atom or an alkyl group having 1 to 4 carbon atoms, Ar1 and Ar2 are each a divalent organic group (3-1) represented by general formula (3-1) below, and n is 0 or 1.Type: ApplicationFiled: January 22, 2019Publication date: June 10, 2021Inventors: Ryuichi Matsuoka, Shoko Nishida, Masaya Masumoto, Katsuya Maeyama
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Publication number: 20180162983Abstract: The present invention provides an aqueous urethane resin composition containing (A) a urethane resin, (B) an organic solvent having a boiling point of 150 to 350° C., and (C) an aqueous medium, the aqueous urethane resin composition being characterized in that the organic solvent (B) has a Hansen solubility parameter in which a dispersion member (?d) is 15.5 MPa0.5 or more and less than 20 MPa0.5, a polar member (?p) is 4.5 MPa0.5 or more and less than 12 MPa0.5, and a hydrogen-bonding member (?h) is 3 MPa0.5 or more and less than 10.5 MPa0.5. The aqueous urethane resin composition has excellent film formability, corrosion resistance, chemical resistance, and substrate adhesiveness, and is capable of forming a low-toxic coating film.Type: ApplicationFiled: May 10, 2016Publication date: June 14, 2018Inventors: Ryuichi MATSUOKA, Hiroyoshi KANNARI, Sadamu NAGAHAMA
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Patent number: 8729154Abstract: An object to be achieved by the present invention is to provide a binder for an ink-jet printing ink, the binder being capable of forming a printed image having excellent durability such as rubfastness and alkali resistance without impairing good ejection stability, storage stability, etc. of an ink, and an ink-jet printing ink containing the binder. The present invention relates to a binder for an ink-jet printing ink, the binder containing an aqueous medium (D); and a polyurethane (C) obtained by reacting a polyol (A) containing a vinyl polymer (a1) having two hydroxyl groups at one end and at least one polyol (a2) selected from the group consisting of polyether polyols, polyester polyols, polyester ether polyols, and polycarbonate polyols with a polyisocyanate (B), the polyurethane (C) having a structure derived from the vinyl polymer (a1) in a side chain thereof and being dispersed in the aqueous medium (D), and printed matter.Type: GrantFiled: August 29, 2011Date of Patent: May 20, 2014Assignee: DIC CorporationInventors: Ryuichi Matsuoka, Sadamu Nagahama, Mitsuru Kitada
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Patent number: 8669324Abstract: An object of the present invention is to provide a method for producing a binder for inks and for use in producing an inkjet printing ink that has both good ink dischargeability and blend stability. A method for producing a binder for inkjet printing inks, the binder containing a hydrophilic-group-containing urethane resin (A), an acetylene compound (B), and an aqueous medium (C), includes step (1) of allowing Ga polyol (a1) containing a hydrophilic-group-containing polyol to react with a polyisocyanate (a2) in an organic solvent or in the absence of a solvent and feeding the organic solvent as needed to prepare an organic solvent solution [I], step (2) of mixing the organic solvent solution [I] with the acetylene compound (B) and the aqueous medium (C) to prepare a mixture [II], and step (3) of removing the organic solvent contained in the mixture [II].Type: GrantFiled: March 28, 2011Date of Patent: March 11, 2014Assignee: DIC CorporationInventors: Sadamu Nagahama, Mitsuru Kitada, Chisato Kuriyama, Ryuichi Matsuoka
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Publication number: 20130266776Abstract: An object to be achieved by the present invention is to provide a binder for an ink-jet printing ink, the binder being capable of forming a printed image having excellent durability such as rubfastness and alkali resistance without impairing good ejection stability, storage stability, etc. of an ink, and an ink-jet printing ink containing the binder. The present invention relates to a binder for an ink-jet printing ink, the binder containing an aqueous medium (D); and a polyurethane (C) obtained by reacting a polyol (A) containing a vinyl polymer (a1) having two hydroxyl groups at one end and at least one polyol (a2) selected from the group consisting of polyether polyols, polyester polyols, polyester ether polyols, and polycarbonate polyols with a polyisocyanate (B), the polyurethane (C) having a structure derived from the vinyl polymer (a1) in a side chain thereof and being dispersed in the aqueous medium (D), and printed matter.Type: ApplicationFiled: August 29, 2011Publication date: October 10, 2013Applicant: DIC CORPORATIONInventors: Ryuichi Matsuoka, Sadamu Nagahama, Mitsuru Kitada
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Publication number: 20130245157Abstract: It is an object of the present invention to provide a binder for ink-jet printing ink that achieves excellent rubfastness, high durability such as alkali resistance, and good ink dischargeability and that can form a printed image with high gloss and an ink-jet printing ink containing the binder. The present invention relates to a binder for ink-jet printing ink in which a vinyl polymer (B) is dispersed in an aqueous medium (D) by a urethane resin (A) having a hydrophilic group.Type: ApplicationFiled: August 29, 2011Publication date: September 19, 2013Applicant: DIC CorporationInventors: Chisato Kuriyama, Mitsuru Kitada, Sadamu Nagahama, Ryuichi Matsuoka
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Publication number: 20120219769Abstract: An object of the present invention is to provide a method for producing a binder for inks and for use in producing an inkjet printing ink that has both good ink dischargeability and blend stability. A method for producing a binder for inkjet printing inks, the binder containing a hydrophilic-group-containing urethane resin (A), an acetylene compound (B), and an aqueous medium (C), includes step (1) of allowing Ga polyol (a1) containing a hydrophilic-group-containing polyol to react with a polyisocyanate (a2) in an organic solvent or in the absence of a solvent and feeding the organic solvent as needed to prepare an organic solvent solution [I], step (2) of mixing the organic solvent solution [I] with the acetylene compound (B) and the aqueous medium (C) to prepare a mixture [II], and step (3) of removing the organic solvent contained in the mixture [II].Type: ApplicationFiled: March 28, 2011Publication date: August 30, 2012Applicant: DIC CorporationInventors: Sadamu Nagahama, Mitsuru Kitada, Chisato Kuriyama, Ryuichi Matsuoka
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Publication number: 20110212332Abstract: The present invention relates to an aqueous hybrid resin composition containing: a hybrid resin (A) in which a hydrophilic group-containing polyurethane (a1) and a vinyl polymer (a2) are bound via a polysiloxane (a3); and an aqueous medium, wherein a weight ratio of a structure derived from the aforementioned polysiloxane (a3) with respect to the entire hybrid resin (A) ranges from 15% to 55% by weight, and also relates to a coating preparation for use in a metal substrate and a coating preparation for use in a plastic substrate, containing the aforementioned aqueous hybrid resin composition.Type: ApplicationFiled: April 8, 2009Publication date: September 1, 2011Applicant: DIC CorporationInventors: Hiroshi Matsuzawa, Ryuichi Matsuoka, Sadamu Nagahama, Jun Shirakami, Kazunori Tanaka
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Patent number: 5845032Abstract: An optical fiber cable comprises a slender base body having spiral grooves formed on the outer circumferential surface, and at least one optical fiber tape housed within each of said grooves, said tape including a plurality of insulated optical fibers and a resin coating layer covering said optical fibers. The base body is formed of a mixture of at least two materials differing from each other in the molecular weight distribution. The particular construction permits markedly suppressing an increase of transmission loss derived from micro-bend occurring in the optical fiber tape arranged within the base body, and also permits arranging optical fiber tapes within the base body at a higher density.Type: GrantFiled: September 2, 1997Date of Patent: December 1, 1998Assignee: The Furukawa Electric Co., Ltd.Inventors: Eiji Konda, Nobuhisa Ishii, Ryuichi Matsuoka
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Patent number: 5751881Abstract: An optical fiber cable comprises a slender base body having spiral grooves formed on the outer circumferential surface, and at least one optical fiber tape housed within each of said grooves, said tape including a plurality of insulated optical fibers and a resin coating layer covering said optical fibers. The base body is formed of a mixture of at least two materials differing from each other in the molecular weight distribution. The particular construction permits markedly suppressing an increase of transmission loss derived from micro-bend occurring in the optical fiber tape arranged within the base body, and also permits arranging optical fiber tapes within the base body at a higher density.Type: GrantFiled: January 27, 1997Date of Patent: May 12, 1998Assignee: Furukawa Electric Co., Ltd.Inventors: Eiji Konda, Nobuhisa Ishii, Ryuichi Matsuoka