Unit Structure (i.e., Three Or More Differing Magnetic Layers In Series) Patents (Class 428/819)
Reoccurring unit structure (Class 428/819.1)
Only three adjacent magnetic layers form series (Class 428/819.2)
Only four or six adjacent magnetic layers form series (Class 428/819.3)
  • OPTICAL DISK AND OPTICAL RECORDING/REPRODUCING DEVICE
    Publication number: 20110096644
    Abstract: A small-sized, large-capacity optical disk is provided which is superior in portability. The optical disk has a diameter less than 64 mm and a thickness less than 0.8 mm. Tracks are formed with a pitch less than 0.6 ?m, and the record area is divided into a plurality of zones alone the radium. The optical disk can store more than 650 MB of compressed data.
    Type: Application
    Filed: April 26, 2000
    Publication date: April 28, 2011
    Inventors: Akira Takahashi, Shigeo Terashima, Hideyoshi Yamaoka
  • Self-crosslinking aqueous polystyrene-butadiene dispersions for consolidating bituminizable nonwovens and also consolidated nonwovens
    Patent number: 6693146
    Abstract: Self crosslinking aqueous polymer dispersions containing hard and soft copolymers containing polymerized units of a conjugated diene, a vinyl aromatic compound, an organic carboxylic acid and/or anhydride, and at least one crosslinker may be included in consolidated nonwoven constructions. The consolidated nonwoven construction is useful as a base material such as a bituminized roofing mat.
    Type: Grant
    Filed: January 2, 2003
    Date of Patent: February 17, 2004
    Assignee: Polymerlatex GmbH & Co. KG.
    Inventors: Gunther Mueller, Helmut Daum, Willibald Scheda