Patents by Inventor Nobukazu Kirigaya

Nobukazu Kirigaya 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).

  • Publication number: 20140365727
    Abstract: A storage control device includes a processor. The processor is configured to receive commands requesting access to a first storage. The processor is configured to detect, among the received commands, a monitoring command requesting access for monitoring to the first storage. The processor is configured to restrict access to the first storage in response to the detected monitoring command.
    Type: Application
    Filed: April 14, 2014
    Publication date: December 11, 2014
    Applicant: FUJITSU LIMITED
    Inventors: Hidekazu KAWANO, Hajime Watanabe, Jun Ishizaki, Hiroshi Chiba, Nobukazu Kirigaya, Yoshiharu Itoh, Hiroshi Ichikawa
  • Patent number: 5724542
    Abstract: An ID portion indicating the corresponding relationship between the number of a record contained in an FBA block and the position of the record is provided at the beginning of the FBA block. When a seek command has been issued by a host apparatus in the CKD format, a device adapter obtains the FBA block number corresponding to the parameter value (CCHH) of a head positioning command and positions a head at the FBA block of this number. Next, the device adapter obtains the FBA block number corresponding to the parameter value (sector value) of a set-sector command, reads one CKD track of blocks from the FBA block designated by the FBA block number and develops these blocks in a cache memory. A channel adapter searches the cache memory for a commanded record by referring to the information in the ID portion.
    Type: Grant
    Filed: September 8, 1994
    Date of Patent: March 3, 1998
    Assignee: Fujitsu Limited
    Inventors: Yuichi Taroda, Kazuma Takatsu, Sanae Kamakura, Nobukazu Kirigaya, Hideaki Ohmura