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:
Apr. 24, 2007
Filed:
Feb. 20, 2002
Kunihiko Miyazaki, Yokohama, JP;
Shinji Itoh, Yokohama, JP;
Hiroshi Yoshiura, Tokyo, JP;
Kazuo Takaragi, Ebina, JP;
Masato Arai, Yokohama, JP;
Toshiaki Arai, Machida, JP;
Takeshi Matsuki, Musashino, JP;
Hisashi Toyoshima, Hachiohji, JP;
Kunihiko Miyazaki, Yokohama, JP;
Shinji Itoh, Yokohama, JP;
Hiroshi Yoshiura, Tokyo, JP;
Kazuo Takaragi, Ebina, JP;
Masato Arai, Yokohama, JP;
Toshiaki Arai, Machida, JP;
Takeshi Matsuki, Musashino, JP;
Hisashi Toyoshima, Hachiohji, JP;
Hitachi, Ltd., Tokyo, JP;
Abstract
Techniques of improving the safety of an information processing system at low cost are provided, the information processing system having an OS provided with an access control function based upon discretionary access control for preventing illegal accesses to files. A method and apparatus for providing the information processing system with functions and areas usable only by a specific user different from a system administrator. The areas are provided with an access control function in order to prevent the access control function from being tampered.