Patents by Inventor Mayumi Terai

Mayumi Terai 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).

  • Publication number: 20020170462
    Abstract: Provided is an ink for writing instruments which contains an interference pigment as a colorant and is designed to change the color tone of a line drawn with the ink depending on the darkness of a writing surface. The ink for writing instruments therefore contains an interference pigment coated, on the surface of a flaky minute base material, with a metal oxide having a high refractive index.
    Type: Application
    Filed: October 2, 2001
    Publication date: November 21, 2002
    Applicant: Zebra Co., Ltd.
    Inventor: Mayumi Terai