Patents by Inventor Tamami Mishiro

Tamami Mishiro 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).

  • Head drum device with carbon-containing synthetic resin upper drum and larger diameter intermediate drum
    Patent number: 6819529
    Abstract: A head drum device of the present invention prevents a magnetic tape (2) from clinging to the head drum device (3) due to electrostatic charge by using a carbon-containing synthetic resin as the material of an upper drum (33) in order to reduce the manufacturing cost for the upper drum. Also, setting the outside diameter of the upper drum (33) smaller than that of an intermediate drum (32) eliminates the need for a high-level of manufacturing precision in the manufacture of the upper drum (33). Thus, it is possible to reduce the manufacturing cost for the upper drum (33).
    Type: Grant
    Filed: July 22, 2002
    Date of Patent: November 16, 2004
    Assignee: Sony Corporation
    Inventors: Tadashi Ooami, Junya Endo, Masanori Maehara, Masahiro Kiko, Tamami Mishiro, Kentaro Shingai