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. 03, 2007
Filed:
Aug. 20, 2002
Kunihiko Miyazaki, Yokohama, JP;
Seiichi Susaki, Yokohama, JP;
Kazuo Takaragi, Ebina, JP;
Hiroshi Yoshiura, Tokyo, JP;
Takeshi Matsuki, Musashino, JP;
Hisashi Toyoshima, Hachioji, JP;
Mitsuru Iwamura, Tokyo, JP;
Tsutomu Matsumoto, Yokohama, JP;
Ryoichi Sasaki, Fujisawa, JP;
Kunihiko Miyazaki, Yokohama, JP;
Seiichi Susaki, Yokohama, JP;
Kazuo Takaragi, Ebina, JP;
Hiroshi Yoshiura, Tokyo, JP;
Takeshi Matsuki, Musashino, JP;
Hisashi Toyoshima, Hachioji, JP;
Mitsuru Iwamura, Tokyo, JP;
Tsutomu Matsumoto, Yokohama, JP;
Ryoichi Sasaki, Fujisawa, JP;
Hitachi, Ltd., Tokyo, JP;
Abstract
A time stamp generating system has a time distribution server for generating time data depending on time and a user PC for holding time certification objective digital data. The time distribution server generates time data corresponding to a time point and distributes the time data. The user PC calculates time stamp generating data by using the time certification objective data as an input, acquires the time data generated by the time distribution server, and processes the time data on the basis of the time stamp generating data to obtain a time stamp.