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.

Date of Patent:
Oct. 24, 2006

Filed:

Jan. 16, 2002
Applicants:

Yoshifumi Takamoto, Kokubunji, JP;

Nobutoshi Sagawa, Koganei, JP;

Toshiyuki Ukai, Sagamihara, JP;

Inventors:

Yoshifumi Takamoto, Kokubunji, JP;

Nobutoshi Sagawa, Koganei, JP;

Toshiyuki Ukai, Sagamihara, JP;

Assignee:

Hitachi, Ltd., Tokyo, JP;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G06F 11/00 (2006.01);
U.S. Cl.
CPC ...
Abstract

Disclosed herein is a method for correcting programs without discontinuing service that is running on a logical computer. A patch managercopies programs and data under control of a logical computer() from one disk to another disk and activates a logical computer(). The logical computer() corrects the copied programs by using a correction program in the copied programs. Then, the patch managerswitches control of a network from the logical computer() to the logical computer() in order to switch operation from the logical computer() to the logical computer().


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