Patents by Inventor Tomoyuki Oika

Tomoyuki Oika 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).

  • Light-emitting material and light-emitting element
    Patent number: 7303696
    Abstract: A light-emitting material includes a matrix section 12 and light-emitting sections 11 dispersed and buried in the matrix section. The matrix section 12 comprises a first material and the light-emitting sections comprise a second material showing a eutectic relationship with the first material.
    Type: Grant
    Filed: March 23, 2005
    Date of Patent: December 4, 2007
    Assignee: Canon Kabushiki Kaisha
    Inventors: Tohru Den, Tomoyuki Oika