Patents by Inventor Seiji Kasahara

Seiji Kasahara 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).

  • Method for producing magnetic recording medium
    Patent number: 6207223
    Abstract: In a method for producing a multilayer magnetic recording medium having at least three coating layers on a side of a magnetic recording layer side, the at least three coating layers are formed on the magnetic layer side at least two times dividedly.
    Type: Grant
    Filed: July 21, 1999
    Date of Patent: March 27, 2001
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Kazunori Komatsu, Seiji Kasahara