Patents by Inventor Kaihei Ito

Kaihei Ito 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).

  • USB storage device and program
    Patent number: 7111121
    Abstract: A USB storage device having the function of preventing stored software from being deleted by mistake achieved with as simple a structure as possible. In the USB storage device, the storage area is divided into an area in which execution of reading, writing and deleting is allowed and an area in which only execution of reading is allowed. Information to make a USB mass storage class driver recognize these areas as areas corresponding, respectively, to logical unit numbers defined in the SCSI command set of the USB mass storage class driver owned by the host is stored in the USB storage device. The information includes logical unit numbers, formats, writing/deleting allowed/not allowed flag, logical block numbers and physical block numbers. By this, the USB mass storage class driver recognizes the USB storage device as a SCSI device having two logical units.
    Type: Grant
    Filed: May 28, 2003
    Date of Patent: September 19, 2006
    Assignee: Hagiwara Sys-Com Co., Ltd.
    Inventors: Yuji Oishi, Kimitoshi Nakamura, Megumi Tokunaga, Kaoru Miyazaki, Kaihei Ito, Naoki Fujita
  • USB storage device and program
    Publication number: 20060200629
    Abstract: A USB storage device having the function of preventing stored software from being deleted by mistake achieved with as simple a structure as possible. In the USB storage device, the storage area is divided into an area in which execution of reading, writing and deleting is allowed and an area in which only execution of reading is allowed. Information to make a USB mass storage class driver recognize these areas as areas corresponding, respectively, to logical unit numbers defined in the SCSI command set of the USB mass storage class driver owned by the host is stored in the USB storage device. The information includes logical unit numbers, formats, writing/deleting allowed/not allowed flag, logical block numbers and physical block numbers. By this, the USB mass storage class driver recognizes the USB storage device as a SCSI device having two logical units.
    Type: Application
    Filed: May 4, 2006
    Publication date: September 7, 2006
    Applicant: Hagiwara Sys-Com Co., Ltd.
    Inventors: Yuji Oishi, Kimitoshi Nakamura, Megumi Tokunaga, Kaoru Miyazaki, Kaihei Ito, Naoki Fujita
  • USB storage device and program
    Publication number: 20030225971
    Abstract: A USB storage device having the function of preventing stored software from being deleted by mistake achieved with as simple a structure as possible. In the USB storage device, the storage area is divided into an area in which execution of reading, writing and deleting is allowed and an area in which only execution of reading is allowed. Information to make a USB mass storage class driver recognize these areas as areas corresponding, respectively, to logical unit numbers defined in the SCSI command set of the USB mass storage class driver owned by the host is stored in the USB storage device. The information includes logical unit numbers, formats, writing/deleting allowed/not allowed flag, logical block numbers and physical block numbers. By this, the USB mass storage class driver recognizes the USB storage device as a SCSI device having two logical units.
    Type: Application
    Filed: May 28, 2003
    Publication date: December 4, 2003
    Inventors: Yuji Oishi, Kimitoshi Nakamura, Megumi Tokunaga, Kaoru Miyazaki, Kaihei Ito, Naoki Fujita