Invention Grant
- Patent Title: Image forming apparatus and electronizing method for information mentioned in paper
- Patent Title (中): 图像形成装置及电子化方法
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Application No.: US11184944Application Date: 2005-07-20
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Publication No.: US07881467B2Publication Date: 2011-02-01
- Inventor: Masuyoshi Yachida , Yoichi Kanai
- Applicant: Masuyoshi Yachida , Yoichi Kanai
- Applicant Address: JP Tokyo
- Assignee: Ricoh Company, Ltd.
- Current Assignee: Ricoh Company, Ltd.
- Current Assignee Address: JP Tokyo
- Agency: Oblon, Spivak, MClelland, Maier & Neustadt, L.L.P.
- Priority: JP2004-213192 20040721
- Main IPC: H04N1/44
- IPC: H04N1/44 ; H04L29/00 ; G06F21/00
Abstract:
An image forming apparatus configured to generate image data by reading information in a paper, includes a machine signature generation part configured to generate a first electronic signature for the image data by using a secret key peculiar to the image forming apparatus, and an operator signature generation part configured to generate a second electronic signature for the image data by using a secret key peculiar to an operator of the image forming apparatus.
Public/Granted literature
- US20060020808A1 Image forming apparatus and electronizing method for information mentioned in paper Public/Granted day:2006-01-26
Information query
