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:
Mar. 23, 2010
Filed:
Dec. 11, 2006
Applicants:
Takahiro Fujita, Fujisawa, JP;
Akihiro Mannen, Kawasaki, JP;
Masaaki Hosouchi, Zama, JP;
Yuichi Yagawa, Yokohama, JP;
Inventors:
Takahiro Fujita, Fujisawa, JP;
Akihiro Mannen, Kawasaki, JP;
Masaaki Hosouchi, Zama, JP;
Yuichi Yagawa, Yokohama, JP;
Assignee:
Hitachi, Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G06F 13/00 (2006.01); G06F 13/28 (2006.01); G06F 12/00 (2006.01); G06F 3/00 (2006.01); G06F 5/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
A storage system where storage devices themselves have WORM functionality that can be set at any time. The storage system includes storage devices, and a controller for controlling data transmission between the storage devices and an information processor. Each storage device has a storage cell and a fuse at a midpoint on a write control line, and the controller applies a voltage to the fuse to blow it to set WORM for the storage cell.