Patents Assigned to Eiichi Kobayashi
  • Optically functional element
    Patent number: 5032489
    Abstract: An optically functional element comprising an aromatic vinylene sulfide polymer as an optically changing element is disclosed. The optically functional element undergoes optical changes with low energy at a high rate to provide high contrast before and after the optical changes.
    Type: Grant
    Filed: February 26, 1990
    Date of Patent: July 16, 1991
    Assignees: Eiichi Kobayashi, Mitsubishi Petrochemical Co., Ltd.
    Inventors: Eiichi Kobayashi, Toyoshi Ohashi, Mitsutaka Miyabayashi