Patents by Inventor Mami Murata

Mami Murata 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).

  • Nonwoven fabric for liners of floppy disk and process for producing the same
    Patent number: 5695374
    Abstract: A nonwoven fabric for a liner of a floppy disk is characterized by a binder which is applied to the fibers of the nonwoven fabric. The binder comprises (a) an emulsion obtainable from a polymerizable unsaturated monomer having a functional group and other polymerizable unsaturated monomers capable of undergoing copolymerization with said polymerizable unsaturated monomer, and (b) a melamine compound having a methylol group.
    Type: Grant
    Filed: September 19, 1995
    Date of Patent: December 9, 1997
    Assignee: Kao Corporation
    Inventors: Tadashi Sakuma, Keizo Takahashi, Zenbei Meiwa, Hiroshi Ikeda, Mami Murata
  • Disk cartridge with fibrous cleaning member having set density rate of change
    Patent number: 5633772
    Abstract: A cleaning member is used for cleaning a magnetic disk by rubbing the cleaning member in a sliding manner against the surface of the magnetic disk. The cleaning member is a sheet-like fibrous member having a density of no more than 0.10 g/cm.sup.3 at a load of 4.4 gf/cm.sup.2 ; with the rate of change of the density over a load range of 0.1-4.4 gf/cm.sup.2 being at least 4.times.10.sup.-3 (g/cm.sup.3)/(gf/cm.sup.2).
    Type: Grant
    Filed: September 14, 1994
    Date of Patent: May 27, 1997
    Assignee: Kao Corporation
    Inventors: Hiroshi Ikeda, Mami Murata