Patents by Inventor Masaaki Kubozuka

Masaaki Kubozuka 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).

  • Cartridge for recording medium
    Patent number: 7295403
    Abstract: It is an object of the invention to provide a disk cartridge having a substantially identical form to that of a disk cartridge that accommodates a disk-shaped recording medium having a first recording capacity and accommodating a disk-shaped recording medium having a second recording capacity, which is higher than the first recording capacity, wherein the disk cartridge includes a write protect mechanism, which is different from a write protect mechanism for the disk cartridge accommodating the disk-shaped recording medium having the first recording capacity.
    Type: Grant
    Filed: December 15, 2004
    Date of Patent: November 13, 2007
    Assignee: Sony Corporation
    Inventor: Masaaki Kubozuka
  • Cartridge for recording medium
    Publication number: 20050168872
    Abstract: It is an object of the invention to provide a disk cartridge having a substantially identical form to that of a disk cartridge that accommodates a disk-shaped recording medium having a first recording capacity and accommodating a disk-shaped recording medium having a second recording capacity, which is higher than the first recording capacity, wherein the disk cartridge includes a write protect mechanism, which is different from a write protect mechanism for the disk cartridge accommodating the disk-shaped recording medium having the first recording capacity.
    Type: Application
    Filed: December 15, 2004
    Publication date: August 4, 2005
    Applicant: Sony Corporation
    Inventor: Masaaki Kubozuka