Patents by Inventor Hirotomo Katano

Hirotomo Katano 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: 11515644
    Abstract: Provided is an electromagnetic wave shielding and absorbing molded article which has excellent shielding properties and absorbency for electromagnetic waves having a specific frequency. The electromagnetic wave shielding and absorbing molded article includes a thermoplastic resin composition including stainless steel fibers, and the content ratio of the stainless steel fibers in the molded article is from 0.5 to 20 mass %. The electromagnetic wave shielding and absorbing molded article has a thickness from 0.5 mm to 5 mm, and a shielding property of 10 dB or greater and an absorbency of 25% or greater for electromagnetic waves having any frequency in a frequency domain from 59 GHz to 100 GHz.
    Type: Grant
    Filed: October 30, 2018
    Date of Patent: November 29, 2022
    Assignee: DAICEL POLYMER LTD.
    Inventors: Takafumi Ueda, Hirotomo Katano, Hiroshi Katayama
  • Publication number: 20210371623
    Abstract: Provided is an electromagnetic wave shielding and absorbing molded article which has an excellent shielding property and absorbency of electromagnetic waves of specific frequencies. The electromagnetic wave shielding and absorbing molded article includes a thermoplastic resin composition containing a thermoplastic resin and carbon fibers. The carbon fibers have a weighted average fiber length in the molded article in a range from 0.05 to 8.0 mm, and the content ratio of the carbon fibers in the molded article is from 0.05 to 45 mass %. The electromagnetic wave shielding and absorbing molded article has a thickness from 0.01 mm to 5 mm, a shielding property of 10 dB or greater and an absorbency of 5% or greater for electromagnetic waves having any frequency in a frequency domain from 59 GHz to 100 GHz.
    Type: Application
    Filed: October 30, 2018
    Publication date: December 2, 2021
    Applicant: DAICEL POLYMER LTD.
    Inventors: Takafumi UEDA, Hirotomo KATANO, Hiroshi KATAYAMA
  • Publication number: 20200335875
    Abstract: Provided is an electromagnetic wave shielding and absorbing molded article which has excellent shielding properties and absorbency for electromagnetic waves having a specific frequency. The electromagnetic wave shielding and absorbing molded article includes a thermoplastic resin composition including stainless steel fibers, and the content ratio of the stainless steel fibers in the molded article is from 0.5 to 20 mass %. The electromagnetic wave shielding and absorbing molded article has a thickness from 0.5 mm to 5 mm, and a shielding property of 10 dB or greater and an absorbency of 25% or greater for electromagnetic waves having any frequency in a frequency domain from 59 GHz to 100 GHz.
    Type: Application
    Filed: October 30, 2018
    Publication date: October 22, 2020
    Applicant: DAICEL POLYMER LTD.
    Inventors: Takafumi UEDA, Hirotomo KATANO, Hiroshi KATAYAMA
  • Publication number: 20110014447
    Abstract: The invention is a flame retardant resin composition, containing 100 parts by mass of (A) resin component containing 60 to 90 percent by mass of (A-1) polycarbonate resin and 40 to 10 percent by mass of (A-2) polyester resin, 5 to 15 parts by mass of (B) a phosphoric ester having formula (I), based on 100 parts by mass of (A), 0.01 to 0.5 part by mass of (C) an organic phosphoric ester, provided that the phosphoric ester having formula (I) is excluded, based on 100 parts by mass of (A), and 15 to 60 parts by mass in total of (D) comprising (D-1) glass fiber and (D-2) a scale-like inorganic filler, based on 100 parts by mass of (A), a mass ratio of (D-1) component to (D-2) component of (D) component, (D-1)/(D-2), being within the range of 0.2 to 1.5: in which X is a divalent aromatic group and R1, R2, R3 and R4 is a substituted or non-substituted phenyl.
    Type: Application
    Filed: July 13, 2010
    Publication date: January 20, 2011
    Inventor: Hirotomo Katano