Patents by Inventor Masaaki Mawatari

Masaaki Mawatari 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).

  • Publication number: 20230147429
    Abstract: In the present disclosure, an artificial joint stem includes a base and a coating film located on the base. The base includes a first region, a second region, and a third region located in sequence. The coating film contains a calcium phosphate-based material and an antimicrobial material. The coating film is located across the first region and the second region, and the third region is exposed from the coating film. The surface of the coating film located in the first region has a larger surface roughness than the surface of the base in the third region.
    Type: Application
    Filed: March 30, 2020
    Publication date: May 11, 2023
    Inventors: Masaaki MAWATARI, Iwao NODA
  • Publication number: 20230121881
    Abstract: Provided is a bioimplant which is capable to inhibit the biofilm formation over a long period of time after an operation. The bioimplant of the present invention comprises a base material of metal, ceramic, or plastic and a thermal spraying film of a calcium phosphate-based material formed at least partially thereon and the silver concentration in the thermal-spray film is 0.05 wt % to 3.00 wt %.
    Type: Application
    Filed: December 21, 2022
    Publication date: April 20, 2023
    Inventors: Masaaki MAWATARI, Masatsugu TSUKAMOTO, Iwao NODA
  • Publication number: 20230076858
    Abstract: A spinal implant includes a base and a coating film disposed on the base and including a calcium phosphate-based material and an antimicrobial agent. A surface of the base includes a first region in which the coating film is disposed and a second region exposed from the coating film.
    Type: Application
    Filed: February 1, 2021
    Publication date: March 9, 2023
    Inventors: Kazuya MATSUNAGA, Fumiya NAKADA, Masaaki MAWATARI, Tadatsugu MORIMOTO
  • Patent number: 11577006
    Abstract: Provided is a bioimplant which is capable to inhibit the biofilm formation over a long period of time after an operation. The bioimplant of the present invention comprises a base material of metal, ceramic, or plastic and a thermal spraying film of a calcium phosphate-based material formed at least partially thereon and the silver concentration in the thermal-spray film is 0.05 wt % to 3.00 wt %.
    Type: Grant
    Filed: October 26, 2020
    Date of Patent: February 14, 2023
    Assignees: KYOCERA CORPORATION, SAGA UNIVERSITY
    Inventors: Masaaki Mawatari, Masatsugu Tsukamoto, Iwao Noda
  • Publication number: 20210052780
    Abstract: Provided is a bioimplant which is capable to inhibit the biofilm formation over a long period of time after an operation. The bioimplant of the present invention comprises a base material of metal, ceramic, or plastic and a thermal spraying film of a calcium phosphate-based material formed at least partially thereon and the silver concentration in the thermal-spray film is 0.05 wt % to 3.00 wt %.
    Type: Application
    Filed: October 26, 2020
    Publication date: February 25, 2021
    Inventors: Masaaki Mawatari, Masatsugu Tsukamoto, Iwao Noda
  • Patent number: 10814039
    Abstract: Provided is a bioimplant which is capable to inhibit the biofilm formation over a long period of time after an operation. The bioimplant of the present invention comprises a base material of metal, ceramic, or plastic and a thermal spraying film of a calcium phosphate-based material formed at least partially thereon and the silver concentration in the thermal-spray film is 0.05 wt % to 3.00 wt %.
    Type: Grant
    Filed: January 12, 2017
    Date of Patent: October 27, 2020
    Assignees: KYOCERA CORPORATION, SAGA UNIVERSITY
    Inventors: Masaaki Mawatari, Masatsugu Tsukamoto, Iwao Noda
  • Publication number: 20170119932
    Abstract: Provided is a bioimplant which is capable to inhibit the biofilm formation over a long period of time after an operation. The bioimplant of the present invention comprises a base material of metal, ceramic, or plastic and a thermal spraying film of a calcium phosphate-based material formed at least partially thereon and the silver concentration in the thermal-spray film is 0.05 wt % to 3.00 wt %.
    Type: Application
    Filed: January 12, 2017
    Publication date: May 4, 2017
    Inventors: Masaaki MAWATARI, Masatsugu TSUKAMOTO, lwao NODA
  • Publication number: 20150018965
    Abstract: Provided is a bioimplant which is capable to inhibit the biofilm formation over a long period of time after an operation. The bioimplant of the present invention comprises a base material of metal, ceramic, or plastic and a thermal spraying film of a calcium phosphate-based material formed at least partially thereon and the silver concentration in the thermal-spray film is 0.05 wt % to 3.00 wt %.
    Type: Application
    Filed: January 16, 2013
    Publication date: January 15, 2015
    Applicants: KYOCERA MEDICAL CORPORATION, SAGA UNIVERSITY
    Inventors: Masaaki Mawatari, Masatsugu Tsukamoto, Iwao Noda
  • Patent number: 8653188
    Abstract: The object of the present invention is to provide a thermoplastic polymer composition which is excellent in the impact resistance, a fracture morphology and rigidity, as well as has a possibility of the effect for reducing environmental load. The thermoplastic resin composition comprises 15 to 85% by mass of aliphatic polyester-based resin (A) comprising the following (AI) and (AII) components, and 15 to 85% by mass of styrene-based resin (B) which is at least one selected from the group consisting of the following (BI) to (BIII). The above (AI) is an aliphatic polyester-based resin having units formed from an aliphatic diol and/or an alicyclic diol and an aliphatic dicarboxylic acid (including derivatives thereof) and/or an alicyclic dicarboxylic (including derivatives thereof) as repeating units, and the above (AII) is a polylactic acid-based aliphatic polyester resin having not less than 70 mol % of lactic acid unit content.
    Type: Grant
    Filed: May 8, 2008
    Date of Patent: February 18, 2014
    Assignee: Techno Polymer Co., Ltd.
    Inventors: Tatsuya Toneri, Masaaki Mawatari
  • Publication number: 20130138223
    Abstract: Provided is a bioimplant superior in antimicrobial action and safety in the body. The bioimplant according to the present invention comprises a base material of metal, ceramic, or plastic and a thermal spraying film of a calcium phosphate-based material formed at least partially thereon and the silver concentration in the thermal spraying film is 0.02 wt % to 3.00 wt %.
    Type: Application
    Filed: August 12, 2011
    Publication date: May 30, 2013
    Applicants: KYOCERA MEDICAL CORPORATION, SAGA UNIVERSITY
    Inventors: Masaaki Mawatari, Iwao Noda
  • Patent number: 8252868
    Abstract: A thermoplastic polymer composition capable of exhibiting excellent impact resistance, durability and destaticizing property containing (A) 50 to 95% by mass of an aliphatic polyester-based resin and (B) 5 to 50% by mass of a block copolymer of (B1) a hard segment block with at least one of a polyamide, polyester, polyolefin or polyurethane, and (B2) a soft segment block having an ether bond.
    Type: Grant
    Filed: November 4, 2011
    Date of Patent: August 28, 2012
    Assignee: Techno Polymer Co., Ltd.
    Inventors: Masaaki Mawatari, Tatsuya Toneri
  • Publication number: 20120065332
    Abstract: A thermoplastic polymer composition capable of exhibiting excellent impact resistance, durability and destaticizing property containing (A) 50 to 95% by mass of an aliphatic polyester-based resin and (B) 5 to 50% by mass of a block copolymer of (B1) a hard segment block with at least one of a polyamide, polyester, polyolefin or polyurethane, and (B2) a soft segment block having an ether bond.
    Type: Application
    Filed: November 4, 2011
    Publication date: March 15, 2012
    Applicant: TECHNO POLYMER CO.,LTD.
    Inventors: Masaaki MAWATARI, Tatsuya Toneri
  • Patent number: 8084538
    Abstract: The present invention provides a thermoplastic polymer composition capable of exhibiting excellent impact resistance, durability and destaticizing property. The present invention relates to a thermoplastic polymer composition comprising (A) 50 to 95% by mass of an aliphatic polyester-based resin and (B) 5 to 50% by mass of a block copolymer comprising (B1) a hard segment block comprising at least one polymer selected from the group consisting of a polyamide, a polyester, a polyolefin and a polyurethane, and (B2) a soft segment block having an ether bond, with the proviso that a total amount of the components (A) and (B) is 100% by mass.
    Type: Grant
    Filed: January 26, 2009
    Date of Patent: December 27, 2011
    Assignee: Techno Polymer Co., Ltd.
    Inventors: Masaaki Mawatari, Tatsuya Toneri
  • Publication number: 20100152384
    Abstract: The object of the present invention is to provide a thermoplastic polymer composition which is excellent in the impact resistance, a fracture morphology and rigidity, as well as has a possibility of the effect for reducing environmental load. The thermoplastic resin composition comprises 15 to 85% by mass of aliphatic polyester-based resin (A) comprising the following (AI) and (AII) components, and 15 to 85% by mass of styrene-based resin (B) which is at least one selected from the group consisting of the following (BI) to (BIII). The above (AI) is an aliphatic polyester-based resin having units formed from an aliphatic diol and/or an alicyclic diol and an aliphatic dicarboxylic acid (including derivatives thereof) and/or an alicyclic dicarboxylic (including derivatives thereof) as repeating units, and the above (AII) is a polylactic acid-based aliphatic polyester resin having not less than 70 mol % of lactic acid unit content.
    Type: Application
    Filed: May 8, 2008
    Publication date: June 17, 2010
    Inventors: Tatsuya Toneri, Masaaki Mawatari
  • Publication number: 20100105836
    Abstract: The present invention provides a thermoplastic resin composition excellent in impact resistance, delamination resistance and surface appearance The present invention relates to a thermoplastic resin composition comprising: 5 to 95% by mass of an aliphatic polyester (A), 4 to 94% by mass of an olefin-based resin (B) and 1 to 40% by mass of an aromatic vinyl-based polymer (C) where the total amount of component (A), component (B) and component (C) is 100% by mass, the aromatic vinyl-based polymer (C) being at least one selected from: an aromatic vinyl-based polymer (C1) which is an elastomer comprising a block copolymer comprising a polymer block mainly comprising an aromatic vinyl compound and a polymer block mainly comprising a conjugated diene compound, an aromatic vinyl-based polymer (C2) which is an elastomer obtained by hydrogenation of the aromatic vinyl-based polymer (C1), and an aromatic vinyl-based polymer (C3) which is a graft copolymer obtained by polymerizing a vinyl-based monomer containing an
    Type: Application
    Filed: September 27, 2007
    Publication date: April 29, 2010
    Inventors: Masaaki Mawatari, Tatsuya Toneri
  • Publication number: 20090171023
    Abstract: The present invention provides a thermoplastic polymer composition capable of exhibiting excellent impact resistance, durability and destaticizing property. The present invention relates to a thermoplastic polymer composition comprising (A) 50 to 95% by mass of an aliphatic polyester-based resin and (B) 5 to 50% by mass of a block copolymer comprising (B) a hard segment block comprising at least one polymer selected from the group consisting of a polyamide, a polyester, a polyolefin and a polyurethane, and (B2) a soft segment block having an ether bond, with the proviso that a total amount of the components (A) and (B) is 100% by mass.
    Type: Application
    Filed: January 26, 2009
    Publication date: July 2, 2009
    Applicant: TECHNO POLYMER CO., LTD.
    Inventors: Masaaki Mawatari, Tatsuya Toneri
  • Patent number: 7553899
    Abstract: The present invention provides a flame retardant resin composition comprising the following component (A), component (B), component (C) and component (D), in which 0.1 to 50 parts by mass of the component (B), 0.001 to 30 parts by mass of the component (C) and 0.1 to 50 parts by mass of the component (D) are blended with 100 parts by mass of the component (A). Component (A): A rubber-modified styrene resin obtained by (co)polymerizing an aromatic vinyl compound or an aromatic vinyl compound and another vinyl monomer copolymerizable with the aromatic vinyl compound in a presence of a rubber-like polymer; Component (B): A thermally expandable graphite; Component (C): A layered clay material modified by a water-soluble polymer; and Component (D): At least one selected from the group consisting of silicone compounds, boron oxides, aminotriazine sulfate compounds and aminotriazine compounds. The resin composition is excellent in flame retardance and impact resistance.
    Type: Grant
    Filed: June 3, 2005
    Date of Patent: June 30, 2009
    Assignees: Techno Polymer Co., Ltd., LG Chem, Ltd.
    Inventors: Masaaki Mawatari, Sung-Ho Lee, Young-Ho Choi
  • Publication number: 20070208114
    Abstract: The present invention provides a flame retardant resin composition comprising the following component (A), component (B), component (C) and component (D), in which 0.1 to 50 parts by mass of the component (B), 0.001 to 30 parts by mass of the component (C) and 0.1 to 50 parts by mass of the component (D) are blended with 100 parts by mass of the component (A). Component (A): A rubber-modified styrene resin obtained by (co)polymerizing an aromatic vinyl compound or an aromatic vinyl compound and another vinyl monomer copolymerizable with the aromatic vinyl compound in a presence of a rubber-like polymer; Component (B): A thermally expandable graphite; Component (C): A layered clay material modified by a water-soluble polymer; and Component (D): At least one selected from the group consisting of silicone compounds, boron oxides, aminotriazine sulfate compounds and aminotriazine compounds. The resin composition is excellent in flame retardance and impact resistance.
    Type: Application
    Filed: June 3, 2005
    Publication date: September 6, 2007
    Applicant: Techno Polymer Co., Ltd.
    Inventors: Masaaki Mawatari, Sung-Ho Lee, Young-Ho Choi
  • Publication number: 20040132892
    Abstract: The present invention relates to a white coloring laser-marking thermoplastic resin composition, comprising:
    Type: Application
    Filed: November 13, 2003
    Publication date: July 8, 2004
    Applicant: Techno Polymer Co., Ltd.
    Inventors: Kazuyoshi Kawakami, Norifumi Sumimoto, Masaaki Mawatari
  • Patent number: 6743849
    Abstract: The invention provides a thermoplastic resin composition having excellent blister resistance, which does not cause blister on the surfaces of resinous parts by passing through a reflowing oven when the resin composition is used as a resin material forming the resinous parts subjected to the surface-mount technology system, particularly, a thermoplastic resin composition high in mechanical strength such as flexural strength, weld strength and tensile elongation and excellent in moldability and friction property.
    Type: Grant
    Filed: June 22, 2001
    Date of Patent: June 1, 2004
    Assignee: DSM JSR Engineering Plastics Kabushiki Kaisha
    Inventors: Masaaki Mawatari, Kenji Mitamura