Patents by Inventor Masahiro Takeyama

Masahiro Takeyama 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: 20240059913
    Abstract: An object of the present invention is to provide a hot-melt fluorine resin powder coating composition containing a filler, which has a large film thickness that can be coated once, a large limit film thickness for an overcoating, and can be thickly coated. The present invention is a powder coating composition, which is a powder mixture, containing: first hot-melt fluorine resin particles having an average particle diameter of 2 to 100 ?m in which a filler is dispersed in the particles; second hot-melt fluorine resin particles having an average particle diameter of 10 to 200 ?m; and charge controlling agent particles.
    Type: Application
    Filed: February 22, 2022
    Publication date: February 22, 2024
    Applicants: THE CHEMOURS COMPANY FC, LLC, CHEMOURS-MITSUI FLUOROPRODUCTS CO., LTD
    Inventors: RYO NAKAZAWA, MASAHIRO TAKEYAMA, HOAI-NAM PHAM, SHUTARO KAMEYAMA
  • Patent number: 10435581
    Abstract: Provided are a chromium-free fluoropolymer-containing primer composition, which can provide a coated article having excellent higher corrosion resistance by forming a fluoropolymer coating film, and a primer layer having sufficient adhesive strength to the fluoropolymer coating film on the surface of a substrate such as metal, glass, ceramic and heat resistant plastics, a method for manufacturing a coating film using the same, and a coated article using the same. The coating composition contains at least one kind of a fluoropolymer component selected from a reactive functional group-containing fluoropolymer, and a fluoropolymer having a melt flow rate (MFR), measured under a load of 5 kg and at 372° C., in accordance with ASTM D1238, of 10 to 100 g/10 minutes, and an organic titanate, wherein content of titanium contained in the organic titanate, relative to the fluoropolymer component, is 1 to 40% by weight.
    Type: Grant
    Filed: February 13, 2017
    Date of Patent: October 8, 2019
    Assignees: NIPPON FUSSO CO., LTD., DU PONT-MITSUI FLUOROCHEMICALS CO., LTD.
    Inventors: Naoki Fukumura, Masahiro Takeyama, Ryo Nakazawa
  • Publication number: 20170152395
    Abstract: Provided are a chromium-free fluoropolymer-containing primer composition, which can provide a coated article having excellent higher corrosion resistance by forming a fluoropolymer coating film, and a primer layer having sufficient adhesive strength to the fluoropolymer coating film on the surface of a substrate such as metal, glass, ceramic and heat resistant plastics, a method for manufacturing a coating film using the same, and a coated article using the same. The coating composition contains at least one kind of a fluoropolymer component selected from a reactive functional group-containing fluoropolymer, and a fluoropolymer having a melt flow rate (MFR), measured under a load of 5 kg and at 372° C., in accordance with ASTM D1238, of 10 to 100 g/10 minutes, and an organic titanate, wherein content of titanium contained in the organic titanate, relative to the fluoropolymer component, is 1 to 40% by weight.
    Type: Application
    Filed: February 13, 2017
    Publication date: June 1, 2017
    Applicants: Nippon Fusso Co., Ltd., Du Pont-Mitsui Fluorochemicals Co., Ltd.
    Inventors: Naoki Fukumura, Masahiro Takeyama, Ryo Nakazawa
  • Publication number: 20130004755
    Abstract: A chromium-free fluoropolymer-containing primer composition, which can provide a coated article having excellent higher corrosion resistance by forming a fluoropolymer coating film, and a primer layer having sufficient adhesive strength to the fluoropolymer coating film on the surface of a substrate such as metal, glass, ceramic and heat resistant plastics, a method for manufacturing a coating film using the same, and a coated article using the same. The coating composition contains at least one kind of a fluoropolymer component selected from a reactive functional group-containing fluoropolymer, and a fluoropolymer having a melt flow rate (MFR), measured under a load of 5 kg and at 372° C., in accordance with ASTM D1238, of 10 to 100 g/10 minutes, and an organic titanate, wherein content of titanium contained in the organic titanate, relative to the fluoropolymer component, is 1 to 40% by weight.
    Type: Application
    Filed: March 22, 2011
    Publication date: January 3, 2013
    Applicants: DU PONT-MITSUI FLUOROCHEMICALS CO., LTD.,, NIPPON FUSSO CO., LTD.
    Inventors: Naoki Fukumura, Masahiro Takeyama, Ryo Nakazawa
  • Patent number: 8252287
    Abstract: For the first time, the present invention provides antibodies that enhance the generation of activated blood coagulation factor VIII. The antibodies enhance the cleavage of blood coagulation factor VIII at the Arg of position 372 and suppress the cleavage at the Arg of position 336 by recognizing and binding to the A2 domain of blood coagulation Factor VIII. Such antibodies are expected to be useful in preventing or treating diseases that develop or progress due to decrease or loss of the blood coagulation factor VIII activity, for example, hemophilia A, acquired hemophilia, and von Willebrand's disease.
    Type: Grant
    Filed: March 2, 2009
    Date of Patent: August 28, 2012
    Assignees: Chugai Seiyaku Kabushiki Kaisha, Nara Medical University
    Inventors: Masahiro Takeyama, Keiji Nogami, Midori Shima, Tsukasa Suzuki
  • Publication number: 20090297503
    Abstract: For the first time, the present invention provides antibodies that enhance the generation of activated blood coagulation factor VIII. The antibodies enhance the cleavage of blood coagulation factor VIII at the Arg of position 372 and suppress the cleavage at the Arg of position 336 by recognizing and binding to the A2 domain of blood coagulation Factor VIII. Such antibodies are expected to be useful in preventing or treating diseases that develop or progress due to decrease or loss of the blood coagulation factor VIII activity, for example, hemophilia A, acquired hemophilia, and von Willebrand's disease.
    Type: Application
    Filed: March 2, 2009
    Publication date: December 3, 2009
    Inventors: Masahiro Takeyama, Keiji Nogami, Midori Shima, Tsukasa Suzuki
  • Publication number: 20090092958
    Abstract: A method of inactivating a blood coagulation factor is described. The method comprises a step of contacting a sample containing at least one of factors V and VIII with a compound having an iminodiacetate group, whereby at least one of factors V and VIII in the sample is changed into an inactivated form.
    Type: Application
    Filed: September 24, 2008
    Publication date: April 9, 2009
    Applicant: Sysmex Corporation
    Inventors: Masahiro OKUDA, Yoshihito Yamamoto, Akira Yoshioka, Midori Shima, Masahiro Takeyama
  • Publication number: 20060068454
    Abstract: A method of inactivating a blood coagulation factor is described. The method comprises a step of contacting a sample containing at least one of factors V and VIII with a compound having an iminodiacetate group, whereby at least one of factors V and VIII in the sample is changed into an inactivated form.
    Type: Application
    Filed: September 26, 2005
    Publication date: March 30, 2006
    Inventors: Masahiro Okuda, Yoshihito Yamamoto, Akira Yoshioka, Midori Shima, Masahiro Takeyama
  • Patent number: 4278980
    Abstract: A low-impedance loop antenna for receiving medium-frequency-band radio waves has an inductance of 1 microhenry up to 100 microhenries and an effective loop area larger than 20 cm.sup.2, whereby it is capable of receiving radio waves with a markedly improved rejection of undersirable radiations in the form of electric field from external noise sources. Such low-impendance loop antenna is coupled to a radio receiver via an input transformer whereat the impedance of this antenna is stepped up for the purpose of impedance matching. The input transformer has a primary winding provided with a tap adapted to be connected to the antenna and whose ends are connected to a variable capacitor constituting a tuning circuit jointly with the input transformer.
    Type: Grant
    Filed: March 28, 1979
    Date of Patent: July 14, 1981
    Assignee: Nippon Gakki Seizo Kabushiki Kaisha
    Inventors: Minoru Ogita, Masahiro Takeyama