Patents Assigned to Menicon., Ltd.
  • Solution for contact lenses
    Patent number: 6417144
    Abstract: A solution for contact lenses which comprises an amino acid type cationic surfactant and at least one nonionic surfactant.
    Type: Grant
    Filed: June 13, 2001
    Date of Patent: July 9, 2002
    Assignee: Menicon., Ltd.
    Inventors: Akira Tsuzuki, Sadayasu Tanikawa