Patents Assigned to Kabushiki Kaisha Zero One
  • Ag alloy of high discoloration resistance
    Patent number: 5021214
    Abstract: Ag allow generally used for decorative purposes such as silverware and accessories, including In and Al as a substitute for conventionally used Pd provides the products with high discoloration resistance and elegant tint inherent to Ag. Additional content of Cu further improves mechanical properties of the products.
    Type: Grant
    Filed: December 26, 1989
    Date of Patent: June 4, 1991
    Assignee: Kabushiki Kaisha Zero One
    Inventors: Hiroshi Sasaki, Makoto Nishiya