Patents by Inventor Yusuke Hayata
Yusuke Hayata 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: 8466225Abstract: An aromatic polycarbonate resin composition including 100 parts by mass of a polycarbonate resin (A) containing an aromatic polycarbonate resin (a-1) and/or a silicone-copolymerized polycarbonate (a-2), and 0.01 to 30 parts by mass of a nanoporous carbon (B). A molded body of the resin composition is also provided. The aromatic polycarbonate resin composition has improved flame retardancy, moisture resistance and stability at a high temperature molding stage because of the addition of the nanoporous carbon to the polycarbonate resin containing an aromatic polycarbonate and/or a silicone-copolymerized polycarbonate, and is suitably used as, for example, a casing for OA appliances, electric and electronic appliances or communication appliances.Type: GrantFiled: March 26, 2009Date of Patent: June 18, 2013Assignee: Idemitsu Kosan Co., Ltd.Inventors: Yusuke Hayata, Akio Nodera, Naosuke Mukawa
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Patent number: 8410214Abstract: The present invention provides a thermoplastic resin composition comprising 100 mass parts of a polycarbonate resin composition comprising 50 to 95 mass % of (A) a polycarbonate resin and 50 to 5 mass % of (B) a polylactic acid based resin and 5 to 65 mass parts of (C) a vinyl based graft copolymer. The above thermoplastic resin composition comprising the polycarbonate resin and the lactic acid based resin and endowed with a mechanical characteristic of polycarbonate and an excellent fluidity of polylactic acid in combination is improved in a hydrolysis resistance and provides a molded article further improved in an impact resistance and a thin-walled falling weight impact strength.Type: GrantFiled: December 27, 2005Date of Patent: April 2, 2013Assignee: Idemitsu Kosan Co., Ltd.Inventors: Yusuke Hayata, Akio Nodera
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Patent number: 8198366Abstract: The present invention provides a thermoplastic resin composition containing (A) a resin mixture including (a-1) a polycarbonate resin in an amount of 45 to 97% by mass and (a-2) a fatty acid polyester in an amount of 55 to 3 % by mass, and (B) a rubber-like elastomer in an amount of 0.5 to 20 parts by mass per 100 parts by mass of the resin mixture, wherein component (B) is dispersed in an interface between ingredient (a-1) and ingredient (a-2) or in domains of ingredient (a-2). The composition has high impact characteristics and high fluidity and overcomes appearance defects such as pearl-like gloss and jetting marks.Type: GrantFiled: October 25, 2005Date of Patent: June 12, 2012Assignee: Idemitsu Kosan Co., Ltd.Inventors: Yusuke Hayata, Akio Nodera
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Patent number: 8030379Abstract: Provided is a polycarbonate resin composition having high rigidity, high flowability, high heat resistance, and excellent flame retardancy and molded articles with good appearance using the polycarbonate resin composition. The polycarbonate resin composition comprises 4 to 50 parts by mass of a nonmetallic inorganic filler (B) and 0.01 to 1 part by mass of a phosphate compound (C) relative to 100 parts by mass of a resin mixture (A) which is composed of 60 to 97% by mass of an aromatic polycarbonate resin (a-1) and 40 to 3% by mass of a fatty acid polyester (a-2).Type: GrantFiled: December 2, 2005Date of Patent: October 4, 2011Assignee: Idemitsu Kosan Co., Ltd.Inventors: Akio Nodera, Yusuke Hayata, Yutaka Tsubokura, Yoshiaki Miura
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Patent number: 8003735Abstract: Provided is a thermoplastic resin composition having high impact resistance at low temperature and molded articles with good appearance using the thermoplastic resin composition. The thermoplastic resin composition contains 0.5 to 20 parts by mass of a rubbery elastomer (B) relative to 100 parts by mass of a resin mixture (A) comprising 45 to 97% by mass of a polycarbonate resin (a-1) and 55 to 3% by mass of a fatty acid polyester (a-2), wherein the component (B) is dispersed in the component (a-1).Type: GrantFiled: December 2, 2005Date of Patent: August 23, 2011Assignee: Idemitsu Kosan Co., Ltd.Inventors: Yusuke Hayata, Akio Nodera
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Patent number: 7994239Abstract: Provided is an aromatic polycarbonate resin composition including a combination composed of 98 to 1 mass % of an aromatic polycarbonate (A), 1 to 98 mass % of an aliphatic polyester (B), and 1 to 80 mass % of an organic filler derived from a natural product (C), the aromatic polycarbonate resin composition being obtained by suppressing increase in density of an aromatic polycarbonate resin composition containing an aliphatic polyester, while improving rigidity and fluidity thereof and ameliorating poor external appearance such as pearly luster.Type: GrantFiled: October 10, 2008Date of Patent: August 9, 2011Assignee: Idemitsu Kosan Co., LtdInventors: Naosuke Mukawa, Yusuke Hayata, Akio Nodera, Hiroshi Yasuda, Keiichi Watanabe
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Patent number: 7981959Abstract: The present invention provides a resin composition including 100 parts by mass of a resin component containing 80 to 99 mass % of a thermoplastic resin (A) and 20 to 1 mass % of a side-chain crystalline polymer (B), and 0.1 to 30 parts by mass of carbon nanotube (C). The composition has a stabilized thermoplastic resin/side-chain crystalline polymer phase structure, is free from laminar peeling, and is excellent in conductive (antistatic) property, solvent resistance, flow characteristics, flame retardancy, impact resistance, molding appearance, etc.Type: GrantFiled: March 13, 2006Date of Patent: July 19, 2011Assignee: Idemitsu Kosan Co., Ltd.Inventors: Akio Nodera, Yusuke Hayata, Masanori Sera, Takenori Fujimura
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Publication number: 20110065835Abstract: An aromatic polycarbonate resin composition including 100 parts by mass of a polycarbonate resin (A) containing an aromatic polycarbonate resin (a-1) and/or a silicone-copolymerized polycarbonate (a-2), and 0.01 to 30 parts by mass of a nanoporous carbon (B). A molded body of the resin composition is also provided. The aromatic polycarbonate resin composition has improved flame retardancy, moisture resistance and stability at a high temperature molding stage because of the addition of the nanoporous carbon to the polycarbonate resin containing an aromatic polycarbonate and/or a silicone-copolymerized polycarbonate, and is suitably used as, for example, a casing for OA appliances, electric and electronic appliances or communication appliances.Type: ApplicationFiled: March 26, 2009Publication date: March 17, 2011Applicant: IDEMITSU KOSAN CO., LTD.Inventors: Yusuke Hayata, Akio Nodera, Naosuke Mukawa
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Publication number: 20110060089Abstract: Provided is a thermoplastic resin composition comprising a combination of 5 to 89.95 mass % of an aromatic polycarbonate resin (A), 5 to 60 mass % of an aliphatic polyester (B), 5 to 30 mass % of talc (C), 0.05 to 3 mass % of a functional group-containing silicone (D), and 0 to 2 mass % of polytetrafluoroethylene (E) at a total content of the components (A) to (E) of 100 mass %, in which a mass ratio of the component (D) to the component (B) is 0.003 to 0.6. The thermoplastic resin composition has remarkably improved flame retardancy and impact resistance, has excellent chemical resistance and heat resistance, and provides a molded article having an good external appearance. Also provided is a molded article obtained by using the thermoplastic resin composition.Type: ApplicationFiled: April 30, 2009Publication date: March 10, 2011Applicant: IDEMITSU KOSAN CO., LTD.Inventor: Yusuke Hayata
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Publication number: 20110060088Abstract: Provided is a thermoplastic resin composition, including: (A) a resin mixture including 95 to 5 mass % of (a-1) an aromatic polycarbonate resin and 5 to 95 mass % of (a-2) an aliphatic polyester; 5 to 30 parts by mass of (B) talc with respect to 100 parts by mass of the resin mixture; and 0.01 to 1 part by mass of (C) silica with respect to 100 parts by mass of the resin mixture, in which (C) the silica has an average particle diameter of 0.01 to 3 ?m and a specific surface area of 50 to 400 m2/g. The thermoplastic resin composition has remarkably improved flame retardancy and remarkably improved heat resistance without using any flame retardant agent, and is excellent in chemical resistance, impact resistance, and fluidity. Also provided is a molded article using the thermoplastic resin composition.Type: ApplicationFiled: April 30, 2009Publication date: March 10, 2011Applicant: IDEMITSU KOSAN CO., LTD.Inventor: Yusuke Hayata
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Publication number: 20110054107Abstract: A flame-retardant polycarbonate resin composition and molded articles thereof. The flame-retardant polycarbonate resin composition contains 100 parts by mass of an aromatic polycarbonate resin (A), 0.1 to 5 parts by mass of carbon nanotubes (B) and 0.1 to 10 parts by mass of a polyorganosiloxane-containing graft copolymer (C), capable of being made into thin molded articles which are highly flame retardant even at a thickness as thin as 0.5 mm or less and well balanced in the electroconductivity, impact resistance, and their appearance.Type: ApplicationFiled: July 3, 2008Publication date: March 3, 2011Applicant: IDEMITSU KOSAN CO., LTD.Inventors: Yusuke Hayata, Akio Nodera
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Patent number: 7888409Abstract: Provided is a polycarbonate resin composition which is excellent in flame retardancy and heat resistance, while being improved in fluidity and reduced in molding shrinkage rate. Specifically, provided is an aromatic polycarbonate resin composition containing 100 parts by mass of an aromatic polycarbonate resin (A) and 0.1 to 50 parts by mass of a cenosphere (B).Type: GrantFiled: March 28, 2007Date of Patent: February 15, 2011Assignee: Idemitsu Kosan Co., Ltd.Inventors: Yusuke Hayata, Akio Nodera
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Patent number: 7829617Abstract: There is provided an aromatic polycarbonate resin composition having excellent flame retardancy, mechanical properties and fluidity and affording a thin-walled molded article. The aromatic polycarbonate resin composition includes a resin component containing (A) 90 to 99.5% by mass of an aromatic polycarbonate resin and (B) 10 to 0.5% by mass of a polyorganosiloxane-containing graft copolymer, and, compounded in 100 parts by mass of the resin component, (C) 0.1 to 5 parts by mass of a bisphenol type epoxy compound and (D) 0.05 to 2 parts by mass of polytetrafluoroethylene capable of forming fibrils, wherein the polyorganosiloxane-containing graft copolymer in the resin composition has a dispersion average particle diameter of 0.1 to 1.0 ?m. The molded article has a section with a thickness of 1 mm or less and is obtainable by molding the aromatic polycarbonate resin composition.Type: GrantFiled: March 28, 2006Date of Patent: November 9, 2010Assignee: Idemitsu Kosan Co., Ltd.Inventors: Akio Nodera, Yusuke Hayata
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Publication number: 20100204390Abstract: Disclosed is a thermoplastic resin composition characterized by containing a combination of 95 to 5% by mass of a polycarbonate copolymer having a specific repeating unit in a specific amount and having a viscosity index of 30 to 71 (component A) and 5 to 95% by mass of a polyester resin (component B). Also disclosed is a molded body obtained from such a thermoplastic resin composition, which is improved in fluidity, chemical resistance, impact resistance and flame retardancy.Type: ApplicationFiled: September 3, 2008Publication date: August 12, 2010Applicant: IDEMITSU KOSAN CO., LTD.Inventors: Yusuke Hayata, Yusuhiro Ishikawa
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Publication number: 20100048779Abstract: Provided area polycarbonate resin composition comprising 0.05 to 2 parts by mass of a polytetrafluoroethylene (B) with respect to 100 parts by mass of a resin mixture (A) composed of 5 to 99 mass % of a polycarbonate resin (A-1) using dihydroxybiphenyls as part of molecules of a divalent phenol as a raw material for the resin, 1 to 95 mass % of a polycarbonate-polyorganosiloxane copolymer (A-2), and 0 to 94 mass % of a polycarbonate resin (A-3) except the components (A-1) and (A-2), and a structure or sheet-like molded body obtained from the polycarbonate resin composition, which is excellent in flame retardance, mechanical characteristics, and thermal stability even when formed into a thin member.Type: ApplicationFiled: January 29, 2008Publication date: February 25, 2010Applicant: Idemitsu Kosan Co., LtdInventor: Yusuke Hayata
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Publication number: 20090239983Abstract: Provided is a polycarbonate resin composition having high rigidity, high flowability, high heat resistance and excellent flame retardancy and molded articles with good appearance using the polycarbonate resin composition. The polycarbonate resin composition comprises 4 to 50 parts by mass of a nonmetallic inorganic filler (B) and 0.01 to 1 part by mass of a phosphate compound (C) relative to 100 parts by mass of a resin mixture (A) which is composed of 60 to 97% by mass of an aromatic polycarbonate resin (a-1) and 40 to 3% by mass of a fatty acid polyester (a-2).Type: ApplicationFiled: December 2, 2005Publication date: September 24, 2009Applicant: IDEMITSU KOSAN CO., LTD.Inventors: Akio Nodera, Yusuke Hayata, Yutaka Tsubokura, Yoshiaki Miura
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Publication number: 20090234075Abstract: Provided is a thermoplastic resin composition having high impact resistance at low temperature and molded articles with good appearance using the thermoplastic resin composition. The thermoplastic resin composition contains 0.5 to 20 parts by mass of a rubbery elastomer (B) relative to 100 parts by mass of a resin mixture (A) comprising 45 to 97% by mass of a polycarbonate resin (a-1) and 55 to 3% by mass of a fatty acid polyester (a-2), wherein the component (B) is dispersed in the component (a-1).Type: ApplicationFiled: December 2, 2005Publication date: September 17, 2009Applicant: Idemitsu Kosan Co., Ltd.Inventors: Yusuke Hayata, Akio Nodera
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Publication number: 20090192257Abstract: Provided is a polycarbonate resin composition which is excellent in flame retardancy and heat resistance, while being improved in fluidity and reduced in molding shrinkage rate. Specifically, provided is an aromatic polycarbonate resin composition containing 100 parts by mass of an aromatic polycarbonate resin (A) and 0.1 to 50 parts by mass of a cenosphere (B).Type: ApplicationFiled: March 28, 2007Publication date: July 30, 2009Applicant: Idemitsu Kosan Co., Ltd.Inventors: Yusuke Hayata, Akio Nodera
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Publication number: 20090186207Abstract: The present invention provides a polycarbonate resin composition comprising 100 parts by mass of (A) a resin component comprising from 5 to 100% by mass of (A-1) an aromatic polycarbonate resin comprising dihydroxybiphenyl as a part of a divalent phenol as a raw material and from 95 to 0% by mass of (A-2) an aromatic polycarbonate resin other than the aromatic polycarbonate resin, and from 0.5 to 10 parts by mass of (B) a polyorganosiloxane-containing graft copolymer, the graft copolymer being dispersed to have an average dispersed particle diameter of from 0.1 to 1.0 ?m, and a thin-walled molded article, a film and a sheet thereof, and the polycarbonate resin composition is excellent in balance among high flame retardancy, high rigidity, high impact resistance and flowability to be applicable to a thin-walled molded article, a film and a sheet.Type: ApplicationFiled: December 15, 2006Publication date: July 23, 2009Applicant: IDEMITSU KOSAN CO., LTD.Inventors: Yusuke Hayata, Akio Nodera
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Patent number: 7553900Abstract: The present invention provides an aromatic polycarbonate resin composition including a resin component containing (A) 50 to 95% by mass of an aromatic polycarbonate resin and (B) 50 to 5% by mass of a polyester resin derived from natural sources and/or a polylactic acid obtained from synthetic lactic acid, and (C) 0.1 to 30 parts by mass of carbon nanotubes compounded in 100 parts by mass of the resin component, the aromatic polycarbonate resin composition being able to afford a molded object free from layer delamination and excellent in electrical conductivity (antistatic property), solvent resistance, flame retardancy, impact resistance, molding appearance, etc. and having good flowability.Type: GrantFiled: September 28, 2005Date of Patent: June 30, 2009Assignee: Idemitsu Kosan Co., Ltd.Inventors: Yusuke Hayata, Akio Nodera