Patents by Inventor Masanobu Dobuchi

Masanobu Dobuchi 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).

  • Biaxially oriented, laminated polyester film
    Patent number: 6984435
    Abstract: A biaxially oriented, laminated polyester film having at least two layers, and in the film, an irregularity in film thickness determined within 4 mm width at an arbitrary position in a transverse direction of the film is about 0.1 ?m or less. This polyester film can satisfy both the electromagnetic conversion property and the running ability at a high level, particularly when the film is used as a base film for a large capacity tape for data storage.
    Type: Grant
    Filed: December 27, 2002
    Date of Patent: January 10, 2006
    Assignee: Toray Industries, Inc.
    Inventors: Jun Kobayashi, Eiji Doi, Masanobu Dobuchi
  • Biaxially oriented, laminated polyester film
    Publication number: 20030165665
    Abstract: A biaxially oriented, laminated polyester film having at least two layers, and in the film, an irregularity in film thickness determined within 4 mm width at an arbitrary position in a transverse direction of the film is about 0.1 &mgr;m or less. This polyester film can satisfy both the electromagnetic conversion property and the running ability at a high level, particularly when the film is used as a base film for a large capacity tape for data storage.
    Type: Application
    Filed: December 27, 2002
    Publication date: September 4, 2003
    Applicant: Toray Industries, Inc.
    Inventors: Jun Kobayashi, Eiji Doi, Masanobu Dobuchi