The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 30, 2007
Filed:
May. 03, 2004
Naotaka Kobayashi, Odawara, JP;
Yutaka Takata, Ninomiya, JP;
Shinichi Nakayama, Chigasaki, JP;
Hitachi, Ltd., Tokyo, JP;
Abstract
One or more master CHNAM and one or more back-up CHNAC are provided. In each of the one or more back-up CHNsAC, the I/O processoris in a power on state, and the NAS processor is in a power off state. The I/O processoraccesses a shared memoryperiodically, and if the fact that a problem has occurred in any master CHNAM has been written to the shared memory, then the power supply of the NAS processoris turned on, and processing is carried out for switching the back-up CHNAC in which the I/O processoris installed, to a master CHNAM.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile