Patents by Inventor Michihisa Tasaka

Michihisa Tasaka 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).

  • Patent number: 10590299
    Abstract: A paint and an adhesive composition of the present invention containing (a) a vinyl ester resin or unsaturated polyester resin by 20 to 40 mass %, (b) a modifying agent by 0.1 to 50 mass %, (c) a vinyl monomer and/or (meth)acrylate monomer by 30 to 70 mass % (provided that the total of the components (a), (b) and (c) is 100 mass %) and (d) an initiator by 0.1 to 15 parts by mass to a total of 100 parts by mass of the components (a), (b) and (c).
    Type: Grant
    Filed: May 31, 2011
    Date of Patent: March 17, 2020
    Assignees: RIKEN TECHNOS CORP., BASF SE
    Inventors: Michihisa Tasaka, Hiroyasu Kanno
  • Patent number: 8865312
    Abstract: A coating composition for a solar cell backsheet of the present invention includes: (a) 10 to 40 mass % of vinyl ester resin or unsaturated polyester resin; (b) 30 to 60 mass % of vinyl monomer and/or (meth)acrylate monomer; (c) 5 to 40 mass % of denaturant (The components (a) to (c) are 100 mass % in total); (d) 0.1 to 15 parts by mass of an ultraviolet curing agent relative to 100 parts by mass in total of the components (a) to (c); and (e) 5 to 20 parts by mass of a white colorant relative to 100 parts by mass in total of the components (a) to (c).
    Type: Grant
    Filed: June 25, 2010
    Date of Patent: October 21, 2014
    Assignees: Riken Technos Corp., BASF SE
    Inventors: Michihisa Tasaka, Hiroyasu Kanno
  • Publication number: 20130177719
    Abstract: An adhesive composition or a coating composition of the present invention contains (a) 10 to 30% by mass of an epoxy resin; (b) 25 to 55% by mass of an oxetane compound; (c) 25 to 55% by mass of a vinyl ether compound; (d) 1 to 15% by mass of a modifier (wherein the total amount of the components (a) to (d) is 100% by mass); and (e) 3 to 15 parts by mass of a photocationic polymerization initiator with respect to 100 parts by mass of the total amount of the components (a) to (d).
    Type: Application
    Filed: October 1, 2010
    Publication date: July 11, 2013
    Applicants: BASF SE, RIKEN TECHNOS CORP.
    Inventors: Michihisa Tasaka, Hiroyasu Kanno
  • Publication number: 20130164548
    Abstract: A floor coating material of the present invention contains (a) 20 to 40% by mass of a vinyl ester resin or an unsaturated polyester resin; (b) 50 to 70% by mass of a vinyl monomer and/or a (meth)acrylate monomer; (c) 1 to 20% by mass of a modifying agent (provided that the total amount of the components (a) to (c) is 100% by mass); and (d) 0.1 to 15 parts by mass of at least one radical polymerization initiator selected from the group consisting of organic peroxides, UV initiators and electron-beam initiators, with respect to 100 parts by mass of the total amount of the components (a) to (c).
    Type: Application
    Filed: September 2, 2010
    Publication date: June 27, 2013
    Applicants: BASF SE, RIKEN TECHNOS CORP.
    Inventors: Michihisa Tasaka, Hiroyasu Kanno
  • Publication number: 20130095326
    Abstract: A coating composition for a solar cell backsheet of the present invention includes: (a) 10 to 40 mass % of vinyl ester resin or unsaturated polyester resin; (b) 30 to 60 mass % of vinyl monomer and/or (meth)acrylate monomer; (c) 5 to 40 mass % of denaturant (The components (a) to (c) are 100 mass % in total); (d) 0.
    Type: Application
    Filed: June 25, 2010
    Publication date: April 18, 2013
    Applicants: BASF SE, RIKEN TECHNOS CORP.
    Inventors: Michihisa Tasaka, Hiroyasu Kanno
  • Publication number: 20130078460
    Abstract: A paint and an adhesive composition of the present invention containing (a) a vinyl ester resin or unsaturated polyester resin by 20 to 40 mass %, (b) a modifying agent by 0.1 to 50 mass %, (c) a vinyl monomer and/or (meth)acrylate monomer by 30 to 70 mass % (provided that the total of the components (a), (b) and (c) is 100 mass %) and (d) an initiator by 0.1 to 15 parts by mass to a total of 100 parts by mass of the components (a), (b) and (c).
    Type: Application
    Filed: May 31, 2011
    Publication date: March 28, 2013
    Applicants: BASF SE, RIKEN TECHNOS CORP.
    Inventors: Michihisa Tasaka, Hiroyasu Kanno
  • Publication number: 20130065047
    Abstract: A hard coat paint according to the present invention contains (a) vinyl ester resin or unsaturated polyester resin by 10 to 30 mass %, (b) vinyl monomer and/or (meth)acrylate monomer by 50 to 75 mass %, (c) monomer having a cyclic structure and at least one ethylenically unsaturated group in a molecule by 3 to 20 mass %, (d) a modifying agent by 0 to 10 mass % (provided that the total of the components (a) to (d) is 100 mass %) and (e) at least one radical polymerization initiator selected from a group of organic peroxides, UV reaction initiators and electron beam reaction initiators by 0.1 to 15 parts by mass relative to the total of 100 parts by mass of the components (a) to (d).
    Type: Application
    Filed: May 20, 2010
    Publication date: March 14, 2013
    Applicants: BASF SE, RIKEN TECHNOS CORP.
    Inventors: Michihisa Tasaka, Hiroyasu Kanno
  • Patent number: 8071680
    Abstract: A method for producing an elastomeric sealing article including preparing a thermoplastic elastomeric resin composition having (a) 100 parts by weight of a hydrogenated block copolymer including at least two polymeric blocks (A) of styrene, and at least one polymeric block (B) of isoprene; (b) 70 to 130 parts by weight of an ethylene-octene copolymer including ethylene in an amount of more than 50% by weight; and (c) 30 to 60 parts by weight of polypropylene. The thermoplastic elastomeric resin composition does not contain a non-aromatic softening agent, and none of components (a), (b), and (c) is cross-linked. The method also includes molding the thermoplastic elastomeric resin composition into an elastomeric sealing article.
    Type: Grant
    Filed: May 26, 2004
    Date of Patent: December 6, 2011
    Assignee: Riken Technos Corporation
    Inventors: Michihisa Tasaka, Akihiro Tamura
  • Patent number: 7776968
    Abstract: The invention provides a thermoplastic elastomer composition comprising: (a) 100 parts by weight of a hydrogenated block copolymer; (b) 0.01 to 3 parts by weight of an organic peroxide; and (c) 1 to 80 parts by weight of a carboxylated liquid polybutadiene. Also disclosed is a thermoplastic resin composition comprising the thermoplastic elastomer composition.
    Type: Grant
    Filed: February 3, 2005
    Date of Patent: August 17, 2010
    Assignee: Riken Technos Corp.
    Inventors: Michihisa Tasaka, Satoshi Takahashi
  • Patent number: 7528197
    Abstract: This invention provides a softening agent composition obtained by blending and heat treating (a) 100 parts by weight of at least one non-aromatic hydrocarbon softening agent for rubber; (b) 0.1 to 10 parts by weight of an organic peroxide; and (c) 0.1 to 50 parts by weight of a crosslinking aid, with the proviso that the weight ratio of component (b) to component (c) is 1 or less. The softening agent composition is useful and very easy to handle in the production of a thermoplastic resin composition.
    Type: Grant
    Filed: November 19, 2007
    Date of Patent: May 5, 2009
    Assignee: Riken Technos Corporation
    Inventors: Naganori Masubuchi, Michihisa Tasaka
  • Publication number: 20080085976
    Abstract: This invention provides a softening agent composition obtained by blending and heat treating (a) 100 parts by weight of at least one non-aromatic hydrocarbon softening agent for rubber; (b) 0.1 to 10 parts by weight of an organic peroxide; and (c) 0.1 to 50 parts by weight of a crosslinking aid, with the proviso that the weight ratio of component (b) to component (c) is 1 or less. The softening agent composition is useful and very easy to handle in the production of a thermoplastic resin composition.
    Type: Application
    Filed: November 19, 2007
    Publication date: April 10, 2008
    Applicant: RIKEN TECHNOS CORPORATION
    Inventors: Naganori Masubuchi, Michihisa Tasaka
  • Patent number: 7053145
    Abstract: There is disclosed a fire-retardant resin composition, which comprises: a thermoplastic resin component (A) comprising (a) a block copolymer mainly made of a vinyl aromatic compound and a conjugated diene compound as its constitutional components, and/or a hydrogenated block copolymer of the block copolymer, (b) a nonaromatic-series softener for rubber, (c) an ethylene/?-olefin copolymer, and (d) a polypropylene resin; and (e) an organic peroxide, (f) a (meth)acrylate-series and/or allyl-series crosslinking aid, and a metal hydrate (B), wherein a specific amount of the metal hydrate (B) to be used is a metal hydrate being pretreated with a silane coupling agent, and the fire-retardant resin composition is a mixture of the above formulation that is heated and kneaded at a temperature equal to or higher than the melting temperature of the (A). There is also disclosed a wiring material and other molded parts, in which the resin composition is utilized.
    Type: Grant
    Filed: August 27, 1999
    Date of Patent: May 30, 2006
    Assignee: Riken Technos Corporation
    Inventors: Michihisa Tasaka, Shinzo Saito, Masaki Nishiguchi, Hitoshi Yamada, Dai Hashimoto
  • Patent number: 6953824
    Abstract: A thermoplastic elastomer composition excellent in softness, permanent compression set (both short- and long-term), and controlled in bleed-out of the softening agent as well as a formed article and composite formed article of the above thermoplastic elastomer composition. The thermoplastic elastomer composition contains: (a) 100 parts by weight of at least one hydrogenated block copolymer, (b) 30 to 150 parts by weight of a non-aromatic-type softening agent for rubber; and (c) 3 to 100 parts by weight of a petroleum hydrocarbon resin having a softening point of 80 to 170° C., the resin exhibiting a melt viscosity of 10 poise at a temperature in the range of 120 to 250.
    Type: Grant
    Filed: September 18, 2002
    Date of Patent: October 11, 2005
    Assignee: Riken Technos Corp.
    Inventors: Michihisa Tasaka, Takaaki Suka
  • Publication number: 20050187355
    Abstract: The invention provides a thermoplastic elastomer composition comprising: (a) 100 parts by weight of a hydrogenated block copolymer; (b) 0.01 to 3 parts by weight of an organic peroxide; and (c) 1 to 80 parts by weight of a carboxylated liquid polybutadiene. Also disclosed is a thermoplastic resin composition comprising the thermoplastic elastomer composition.
    Type: Application
    Filed: February 3, 2005
    Publication date: August 25, 2005
    Inventors: Michihisa Tasaka, Satoshi Takahashi
  • Patent number: 6872768
    Abstract: The present invention is a thermoplastic elastomeric resin granule for powder molding having a longer diameter of 400 ?m or less and a ratio of the longer diameter to a shorter diameter of from 3:1 to 1:1, wherein said granule comprises a composition prepared by dynamically vulcanizing 100 parts by weight of (a) a block copolymer consisting of at least two polymeric blocks (A) composed mainly of a vinyl aromatic compound and at least one polymeric block (B) composed mainly of a conjugated diene compound, and/or a hydrogenated block copolymer obtained by hydrogenating said block copolymer, 20 to 300 parts by weight of (b) a non-aromatic softening agent for rubber, and 10 to 150 parts by weight of (c) a peroxide-decomposing olefinic resin and/or a copolymer thereof. The resin granule has excellent fluidity in a powder molding.
    Type: Grant
    Filed: April 7, 2000
    Date of Patent: March 29, 2005
    Assignee: Riken Technos Corporation
    Inventors: Michihisa Tasaka, Toshimi Yamanaka
  • Publication number: 20040225062
    Abstract: The invention provides a process for the preparation of a thermoplastic elastomeric resin composition comprising melt kneading
    Type: Application
    Filed: May 26, 2004
    Publication date: November 11, 2004
    Inventors: Michihisa Tasaka, Akihiro Tamura
  • Patent number: 6815496
    Abstract: It is an object of the present invention to provide a thermoplastic elastomer composition excellent in softness, permanent compression set (both short- and long-term) and resistance to oil, and controlled in bleed-out of the softening agent. It is another object of the present invention to provide a formed article and composite formed article of the above thermoplastic elastomer composition. The present invention provides a thermoplastic elastomer composition containing (a) 100 parts by weight of at least one hydrogenated block copolymer, (b) 30 to 150 parts by weight of a non-aromatic-based softening agent for rubber and (c) 3 to 100 parts by weight of a thermoplastic resin having a melting point of 70 to 140° C., determined by the DSC analysis, and melt viscosity of 400 to 100,000 cps at 140° C., and formed article and composite formed article thereof.
    Type: Grant
    Filed: August 26, 2002
    Date of Patent: November 9, 2004
    Assignee: Riken Technos Corp.
    Inventors: Michihisa Tasaka, Takaaki Suka
  • Patent number: 6720361
    Abstract: It is an object of the present invention to provide a foamable thermoplastic elastomer composition which produces a stable foam. The present invention provides a foamable thermoplastic elastomer composition which contains: (a) 10 to 90 parts by weight of one of an olefin-based resin and rubber having a melting or softening point of 140° C. or lower, (b) 9 to 85 parts by weight of heat-expandable microcapsules expanding at 120 to 300° C., (c) 1 to 50 parts by weight of a volatile composition, wherein the components (a) to (c) total 100 parts by weight, and another aspect of the invention provides a foamable thermoplastic elastomer composition which contains; the above said (a) to (c) and (d) 50 to 99 parts by weight of a thermoplastic resin, wherein the components (a) to (d) total 100 parts by weight, and also provides a method of producing the above foamable thermoplastic elastomer composition in two stages.
    Type: Grant
    Filed: June 28, 2002
    Date of Patent: April 13, 2004
    Assignee: Riken Technos Corp.
    Inventors: Michihisa Tasaka, Hiroki Mizuno
  • Patent number: 6646047
    Abstract: The invention provides a process for the preparation of a thermoplastic elastomeric resin composition comprising melt kneading (a) 100 parts by weight of a block copolymer consisting of at least two polymeric blocks (A) composed mainly of a vinyl aromatic compound and at least one polymeric block (B) composed mainly of a conjugated diene compound, and/or a hydrogenated block copolymer obtained by hydrogenating said block copolymer, (b) 20 to 300 parts by weight of a non-aromatic softening agent for rubber, (c) 1 to 150 parts by weight of a peroxide-crosslinking type olefinic resin and/or a copolymeric rubber containing said resin, and (d) 10 to 150 parts by weight of a peroxide-decomposing type olefinic resin and/or a copolymer containing said resin, characterized in that the process comprises a step of heat-processing component (a), component (b), at least a part of component (c), at least a part of component (d) and at least a part of 1.
    Type: Grant
    Filed: April 30, 1999
    Date of Patent: November 11, 2003
    Assignee: Riken Technos Corporation
    Inventors: Michihisa Tasaka, Akihiro Tamura, Tetsuya Sawai
  • Publication number: 20030105233
    Abstract: A thermoplastic elastomer composition excellent in softness, permanent compression set (both short- and long-term), and controlled in bleed-out of the softening agent as well as a formed article and composite formed article of the above thermoplastic elastomer composition. The thermoplastic elastomer composition contains: (a) 100 parts by weight of at least one hydrogenated block copolymer, (b) 30 to 150 parts by weight of a non-aromatic-type softening agent for rubber; and (c) 3 to 100 parts by weight of a petroleum hydrocarbon resin having a softening point of 80 to 170° C., the resin exhibiting a melt viscosity of 10 poise at a temperature in the range of 120 to 250.
    Type: Application
    Filed: September 18, 2002
    Publication date: June 5, 2003
    Inventors: Michihisa Tasaka, Takaaki Suka