Patents by Inventor Junichi Morino

Junichi Morino 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).

  • Apparatus for manufacturing disc medium
    Patent number: 5289231
    Abstract: This specification discloses a method of and an apparatus for manufacturing a disc medium which utilize the projection exposure technique of a stopper for lithography, rotate a circular photosensitive substrate which provides the disc medium at the same speed as a circular reticle having a pattern of information tracks while rotating the reticle, and irradiate the reticle with illuminating light of a slit-like shape or a sectoral shape extending in the diametrical direction of the circular reticle to thereby effect rotation scan exposure.
    Type: Grant
    Filed: December 18, 1992
    Date of Patent: February 22, 1994
    Assignee: Nikon Corporation
    Inventors: Nobutaka Magome, Hiromitsu Iwata, Junichi Morino, Toru Kiuchi