Patents by Inventor Jun FURUTANI

Jun FURUTANI 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).

  • Ta—Nb alloy powder and anode element for solid electrolytic capacitor
    Patent number: 10329644
    Abstract: A Ta—Nb alloy powder which provides a capacitor having a higher capacitance than a Ta capacitor and a better thermal stability in terms of an oxide film than a Nb capacitor, the Ta—Nb alloy powder being a Ta—Nb alloy powder produced by a thermal CVD method, wherein a content of Nb is 1 to 50 mass %, and an average particle diameter of primary particles is 30 to 200 nm, preferably, a CV value per unit mass of the powder (?F·V/g) is 250 k?F·V/g or more, or further, a CV value per unit volume (?F·V/mm3) in terms of a molded body whose molding density ? (g/cm3) is ?c (g/cm3)=?0.012RNb+3.57, wherein RNb:Nb content (mass %) in an alloy, is 900 ?F·V/mm3 or more, and an anode element for a solid electrolytic capacitor using the alloy powder.
    Type: Grant
    Filed: September 11, 2014
    Date of Patent: June 25, 2019
    Assignee: ISHIHARA CHEMICAL CO., LTD.
    Inventors: Takayuki Maeshima, Issei Satoh, Hisakazu Sakai, Jun Furutani, Yoshihiko Takata, Tsukasa Kondo
  • Ta-Nb ALLOY POWDER AND ANODE ELEMENT FOR SOLID ELECTROLYTIC CAPACITOR
    Publication number: 20170283916
    Abstract: A Ta-Nb alloy powder which has provides a capacitor having a higher capacitance than a Ta capacitor and a better thermal stability in terms of an oxide film is better than a Nb capacitor, the Ta-Nb alloy powder being a Ta-Nb alloy powder produced by a thermal CVD method, wherein a content of Nb is 1 to 50 mass %, and an average particle diameter of primary particles is 30 to 200 nm, preferably, a CV value per unit mass of the powder (?F·V/g) is 250 k?F·V/g or more, or further, a CV value per unit volume (?F·V/mm3) in terms of a molded body whose molding density ? (g/cm3) is ?c (g/cm3)=?0.012RNb+3.57, wherein RNb: Nb content (mass %) in an alloy, is 900 ?F·V/mm3 or more, and an anode element for a solid electrolytic capacitor using the alloy powder.
    Type: Application
    Filed: September 11, 2014
    Publication date: October 5, 2017
    Applicant: ISHIHARA CHEMICAL CO., LTD.
    Inventors: Takayuki MAESHIMA, Issei SATOH, Hisakazu SAKAI, Jun FURUTANI, Yoshihiko TAKATA, Tsukasa KONDO