Patents Assigned to Johnson & Johnson Medical Kabushiki Kaisha
  • Chemical indicator sheets and packaging bags for sterilization made with the use of the same
    Patent number: 6267242
    Abstract: This invention provides a sheet which has a chemical indicator, in particular, a composition layer for use as an indicator in hydrogen peroxide plasma sterilization, and further provides a packaging bag for said sterilization with use of such an indicator. Said composition layer comprises both a dye which can change color when contacted with hydrogen peroxide vapor or plasma derived from hydrogen peroxide, and a certain organic amine compound.
    Type: Grant
    Filed: October 18, 1999
    Date of Patent: July 31, 2001
    Assignee: Johnson & Johnson Medical Kabushiki Kaisha
    Inventors: Masanori Nagata, Teiko Sutoh, Makoto Sagara