Patents by Inventor Akira Minowa

Akira Minowa 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: 11873392
    Abstract: Disclosed are a polypropylene-based resin composition comprising 5 to 47 parts by mass of a propylene-based polymer (A) having an MFR of 50 to 150 g/10 min and an amount of a decane-soluble part of 6% by mass or more, 0 to 30 parts by mass of a propylene homopolymer (B) having an MFR of 10 to 500 g/10 min, 23 to 30 parts by mass of an ethylene-?-olefin copolymer (C) which is a random copolymer composed of ethylene and an ?-olefin having 4 to 8 carbon atoms, and has a density of 0.850 to 0.890 g/cm3 and an MFR of 0.5 to 30 g/10 min, and 30 to 40 parts by mass of an inorganic filler (D) having an average particle size of over 3.0 ?m and less than 5.0 ?m [the total amount of the components (A) to (D) is 100 parts by mass]; and an automobile exterior member obtained by injection-molding or press-molding the composition.
    Type: Grant
    Filed: November 10, 2016
    Date of Patent: January 16, 2024
    Assignee: PRIME POLYMER CO., LTD.
    Inventors: Akira Minowa, Shuichi Takahashi, Yusuke Fukuda, Hiroyuki Ikeno
  • Publication number: 20220289956
    Abstract: A polypropylene resin composition including components (A) to (D) in prescribed amounts, limiting the amount of a polypropylene component having a molecular weight of 106.5 or more to less than 0.05 wt % can provide a propylene resin composition that includes an impact polypropylene and a high flow homopolypropylene and is particularly preferable for foam molding, and a molded article comprising the composition (A) Impact polypropylene that includes 5 wt % or more and 20 wt % or less of a propylene-ethylene copolymer having an intrinsic viscosity [?] of 1.5 dl/g or more and 3.8 dl/g or less and having an MFR (230° C., 2.16 kg) of 30 g/10 min to 200 g/10 min, (B) high flow homopolypropylene having MFR (230° C., 2.16 kg) of 200 g/10 min to 1000 g/10 min, (C) ethylene elastomer having an MFR (190° C., 2.16 kg) of 0.5 g/10 min to 40 g/10 min, and (D) inorganic filler.
    Type: Application
    Filed: September 10, 2020
    Publication date: September 15, 2022
    Applicant: PRIME POLYMER CO., LTD.
    Inventors: Akira MINOWA, Tatsuji KAWAMURA
  • Publication number: 20180327580
    Abstract: Disclosed are a polypropylene-based resin composition comprising 5 to 47 parts by mass of a propylene-based polymer (A) having an MFR of 50 to 150 g/10 min and an amount of a decane-soluble part of 6% by mass or more, 0 to 30 parts by mass of a propylene homopolymer (B) having an MFR of 10 to 500 g/10 min, 23 to 30 parts by mass of an ethylene-?-olefin copolymer (C) which is a random copolymer composed of ethylene and an ?-olefin having 4 to 8 carbon atoms, and has a density of 0.850 to 0.890 g/cm3 and an MFR of 0.5 to 30 g/10 min, and 30 to 40 parts by mass of an inorganic filler (D) having an average particle size of over 3.0 ?m and less than 5.0 ?m [the total amount of the components (A) to (D) is 100 parts by mass]; and an automobile exterior member obtained by injection-molding or press-molding the composition.
    Type: Application
    Filed: November 10, 2016
    Publication date: November 15, 2018
    Applicants: PRIME POLYMER CO., LTD., HONDA MOTOR CO., LTD.
    Inventors: Akira MINOWA, Shuichi TAKAHASHI, Yusuke FUKUDA, Hiroyuki IKENO
  • Patent number: 6571721
    Abstract: The furnace body uses a crucible as the innermost layer thereof to reduce wearing of furnace materials and achieve downsizing of the furnace body; the crucible is made into the form of a cartridge so as to fully facilitate replacement thereof; a mixture of a petroleum gas such as propane and butane and an oxygen gas or air is used mainly as a fuel, which is subjected to complete combustion to ensure complete combustion of the fuel, as well as, sufficient temperature control; and an arrangement is employed for contriving arrangement of the burner, the ash charge port, and other elements so as to improve heat efficiency, thus facilitating temperature control in the furnace, reducing wearing of the furnace body and facilitating repair of the furnace.
    Type: Grant
    Filed: November 19, 2001
    Date of Patent: June 3, 2003
    Assignee: Hikari Tech Co., Ltd.
    Inventor: Akira Minowa
  • Publication number: 20030097968
    Abstract: The furnace body uses a crucible as the innermost layer thereof to reduce wearing of furnace materials and achieve downsizing of the furnace body; the crucible is made into the form of cartridge so as to fully facilitate replacement thereof; a mixture of a petroleum gas such as propane and butane and an oxygen gas or air is used mainly as a fuel, which is subjected to complete combustion to ensure complete combustion of the fuel, as well as, sufficient temperature control; and means is employed for contriving arrangement of the burner, the ash charge port, etc. so as to improve heat efficiency, thus facilitating temperature control in the furnace, reducing wearing of the furnace body and facilitating repair of the furnace.
    Type: Application
    Filed: November 19, 2001
    Publication date: May 29, 2003
    Inventor: Akira Minowa