Patents by Inventor Sigeru Maeda

Sigeru Maeda 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).

  • Cover sheet for PTP
    Patent number: 6265041
    Abstract: The present invention provides a cover sheet for PTP which is not needed to be separated from the base material after use of PTP and is convenient in recycling and disposal after use and advantageous for environmental protection and which is excellent in push-through property. This cover sheet for PTP has a thickness of 0.01-1 mm and comprises a resin composition containing 5-250 parts by weight of an inorganic filler based on 100 parts by weight of a polyvinyl chloride based resin, the sheet having a bursting strength of 0.01-5 kg/cm2.
    Type: Grant
    Filed: March 18, 1999
    Date of Patent: July 24, 2001
    Assignee: Sumitomo Bakelite Company Limited
    Inventor: Sigeru Maeda