Patents by Inventor Makoto Kashiwaya

Makoto Kashiwaya 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 of manufacturing magnetic recording medium
    Patent number: 5378496
    Abstract: When manufacturing a magnetic recording medium, depositing material in a crucible is heated to evaporate, and the vapor particles of the deposition material is continuously deposited on a continuous substrate material running along the peripheral surface of a cylindrical cooling can between a position where the vapor particles impinge upon the substrate material at a large angle and a position where the vapor particles impinge upon the substrate material at a small angle. The distance r(.theta.min) between the substrate material and the depositing material in the crucible when the vapor particles impinge upon the substrate material at a minimum incidence angle and the distance r(.theta.max) between the substrate material and the depositing material in the crucible when the vapor particles impinge upon the substrate material at a maximum incidence angle satisfy the formula 0.25.ltoreq.{r(.theta.min)/r(.theta.max)}.sup.2.
    Type: Grant
    Filed: December 3, 1993
    Date of Patent: January 3, 1995
    Assignee: Fuji Photo Film Co., Ltd.
    Inventor: Makoto Kashiwaya