Patents by Inventor Masaaki Hikosaka

Masaaki Hikosaka 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).

  • Hard disk unit, information processing method and program
    Patent number: 7106532
    Abstract: In a hard disk unit, a disassembling and assembling unit disassembles and assembles data in accordance with the size of data to be written from host equipment to the hard disk unit and a sector size and a cluster size as a unit to be read or written. An encoder performs predetermined arithmetic operation to generate a specific bit string as an encoding key based on at least the identification information on the host equipment or on a CPU of the host equipment, and encodes the write data by using the encoding key. The encoding process is performed by flipping bits having a predetermined correspondence with the contents of the encoding.
    Type: Grant
    Filed: March 25, 2004
    Date of Patent: September 12, 2006
    Assignee: Clarion Co., Ltd.
    Inventors: Masaaki Hikosaka, Hiroto Handa
  • Hard disk unit, information processing method and program
    Publication number: 20040190181
    Abstract: In a hard disk unit, a disassembling and assembling unit disassembles and assembles data in accordance with the size of data to be written from host equipment to the hard disk unit and a sector size and a cluster size as a unit to be read or written. An encoder performs predetermined arithmetic operation to generate a specific bit string as an encoding key based on at least the identification information on the host equipment or on a CPU of the host equipment, and encodes the write data by using the encoding key. The encoding process is performed by flipping bits having a predetermined correspondence with the contents of the encoding.
    Type: Application
    Filed: March 25, 2004
    Publication date: September 30, 2004
    Applicant: Clarion Co., Ltd.
    Inventors: Masaaki Hikosaka, Hiroto Handa