Patents Assigned to Yamanaka Ind.
  • Patent number: 6742660
    Abstract: An antibacterial, biodegradable extracting container has a filtering surface formed from a water-permeable woven or knitted fabric formed from fibers comprising, as a principal component, an antibacterial, biodegradable polylactate polymer, and having a thickness of 1 to 100 dtex, wherein, preferably, the filtering surface is formed from the woven fabric having a cover factor K of 1600 to 6400, determined in accordance the following equation: K=(N×(A)1/2/T)+(M×(B)1/2/S) wherein, N=warp density (yarns/10 cm), M=weft density (yarns/10 cm), A=thickness (dtex) of the warp yarns, B=thickness (dtex) of the weft yarns, T=specific gravity of the warp yarns and S=specific gravity of the weft yarns.
    Type: Grant
    Filed: September 16, 2002
    Date of Patent: June 1, 2004
    Assignees: Yamanaka Ind., Unitika Fibers, Ltd.
    Inventors: Kaichi Suzuki, Kouji Kajiwara, Shuhei Kurata