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:
May. 11, 2010

Filed:

Jun. 19, 2007
Applicant:

Akio Matsubara, Kanagawa, JP;

Inventor:

Akio Matsubara, Kanagawa, JP;

Assignee:

Ricoh Company, Ltd., Tokyo, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F 15/173 (2006.01);
U.S. Cl.
CPC ...
Abstract

A server deletes a mask object in a structured text as a part of a shared text. A client issues a mask object constituting each layout object of the structured text, according to the authority of the client, and adds the mask object to the shared text data from which the mask object received from the server is deleted. With this arrangement, information written in the shared text is made unreadable according to the authority of the user of the client, thereby achieving access control to a part of the shared text.


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