公开(公告)号：US07143144B2

公开(公告)日：2006-11-28

申请号：US09725515

申请日：2000-11-30

申请人： Yoichi Kanai ,  Masuyoshi Yachida ,  Tomio Mizuno ,  Tatsuya Furukawa ,  Yoichi Ishikawa

发明人： Yoichi Kanai ,  Masuyoshi Yachida ,  Tomio Mizuno ,  Tatsuya Furukawa ,  Yoichi Ishikawa

IPC分类号： G06F15/16

CPC分类号： G06F21/64

摘要： A method of certifying the existence of electronic information released on a network at a time and date. The network connects one or more computer servers and a plurality of client computers with each other. Electronic information of a web page stored in one of the plurality of client computers is accessed using information of its location from one of the computer servers based on a request from one of the client computers. A copy of the electronic information is then obtained. Attribute information is generated from the location, access time, and date when the electronic information is accessed. An electronic certificate may be generated by uniquely specifying the electronic information and the attribute information as inherent information identifying the electronic information. The copy of the electronic information is stored in a memory by tying up the electronic information with the electronic certificate and the attribute information. At least the electronic certificate, the attribute information, and preferably the copy of the electronic information can also be read and provided from the memory to the one of the client computers or its operator as a requester.

摘要翻译： 一种在时间和日期证明在网络上发布的电子信息的存在的方法。 网络将一个或多个计算机服务器和多个客户端计算机相互连接。 基于来自其中一个客户端计算机的请求，使用来自计算机服务器之一的其位置的信息来访问存储在多个客户端计算机之一中的网页的电子信息。 然后获得电子信息的副本。 属性信息是从访问电子信息的位置，访问时间和日期生成的。 可以通过将电子信息和属性信息唯一地指定为识别电子信息的固有信息来生成电子证书。 通过用电子证书和属性信息搭载电子信息，将电子信息的副本存储在存储器中。 至少电子证书，属性信息以及优选地电子信息的副本也可以从存储器读取并提供给客户端计算机或其操作者之一作为请求者。

公开(公告)号：US07814325B2

公开(公告)日：2010-10-12

申请号：US11562264

申请日：2006-11-21

申请人： Yoichi Kanai ,  Masuyoshi Yachida ,  Tomio Mizuno ,  Tatsuya Furukawa ,  Yoichi Ishikawa

发明人： Yoichi Kanai ,  Masuyoshi Yachida ,  Tomio Mizuno ,  Tatsuya Furukawa ,  Yoichi Ishikawa

IPC分类号： H04L9/00

CPC分类号： G06F21/64

摘要： A method of certifying the existence of electronic information released on a network at a time and date. The network connects one or more computer servers and a plurality of client computers with each other. Electronic information of a web page stored in one of the plurality of client computers is accessed using information of its location from one of the computer servers based on a request from one of the client computers. A copy of the electronic information is then obtained. Attribute information is generated from the location, access time, and date when the electronic information is accessed. An electronic certificate may be generated by uniquely specifying the electronic information and the attribute information as inherent information identifying the electronic information. The copy of the electronic information is stored in a memory by tying up the electronic information with the electronic certificate and the attribute information. At least the electronic certificate, the attribute information, and preferably the copy of the electronic information can also be read and provided from the memory to the one of the client computers or its operator as a requester.

摘要翻译： 一种在时间和日期证明在网络上发布的电子信息的存在的方法。 网络将一个或多个计算机服务器和多个客户端计算机相互连接。 基于来自其中一个客户端计算机的请求，使用来自计算机服务器之一的其位置的信息来访问存储在多个客户端计算机之一中的网页的电子信息。 然后获得电子信息的副本。 属性信息是从访问电子信息的位置，访问时间和日期生成的。 可以通过将电子信息和属性信息唯一地指定为识别电子信息的固有信息来生成电子证书。 通过用电子证书和属性信息搭载电子信息，将电子信息的副本存储在存储器中。 至少电子证书，属性信息以及优选地电子信息的副本也可以从存储器读取并提供给客户端计算机或其操作者之一作为请求者。

公开(公告)号：US20060020808A1

公开(公告)日：2006-01-26

申请号：US11184944

申请日：2005-07-20

申请人： Masuyoshi Yachida ,  Yoichi Kanai

发明人： Masuyoshi Yachida ,  Yoichi Kanai

IPC分类号： H04L9/00

CPC分类号： H04L9/3247 ,  H04L9/3297 ,  H04L2209/60

摘要： 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.

摘要翻译： 一种被配置为通过读取纸张中的信息来生成图像数据的图像形成装置，包括：机器签名生成部，其通过使用图像形成装置特有的密钥生成图像数据的第一电子签名;以及运算符签名生成部 其被配置为通过使用图像形成装置的操作者特有的秘密密钥来生成图像数据的第二电子签名。

公开(公告)号：US07881467B2

公开(公告)日：2011-02-01

申请号：US11184944

申请日：2005-07-20

申请人： Masuyoshi Yachida ,  Yoichi Kanai

发明人： Masuyoshi Yachida ,  Yoichi Kanai

IPC分类号： H04N1/44 ,  H04L29/00 ,  G06F21/00

CPC分类号： H04L9/3247 ,  H04L9/3297 ,  H04L2209/60

摘要： 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.

摘要翻译： 一种被配置为通过读取纸张中的信息来生成图像数据的图像形成装置，包括：机器签名生成部，其通过使用图像形成装置特有的密钥生成图像数据的第一电子签名;以及运算符签名生成部 其被配置为通过使用图像形成装置的操作者特有的秘密密钥来生成图像数据的第二电子签名。

公开(公告)号：US20090185223A1

公开(公告)日：2009-07-23

申请号：US12405101

申请日：2009-03-16

申请人： Yoichi KANAI ,  Atsuhisa Saitoh ,  Masuyoshi Yachida

发明人： Yoichi KANAI ,  Atsuhisa Saitoh ,  Masuyoshi Yachida

IPC分类号： G06F3/12

CPC分类号： G06F21/608

摘要： In a document protecting system, a distributor terminal implementing a document protecting program obtains an encryption key to encrypt a document file, associates a print request to the document file, and encrypts the document file by the encryption key. And a user terminal implementing a document printing program obtains a decryption key of document file being encrypted, decrypts the document file based on the obtained decryption key, obtains a print requirement associated with the document file, and executes a printing process so as to satisfy the print requirement.

摘要翻译： 在文档保护系统中，实现文档保护程序的分发终端获得用于加密文档文件的加密密钥，将打印请求与文档文件相关联，并通过加密密钥加密文档文件。 并且，实现文件打印程序的用户终端获得正在加密的文件文件的解密密钥，基于所获得的解密密钥对文档文件进行解密，获得与文档文件相关联的打印请求，并执行打印处理，以满足 打印要求。

公开(公告)号：US06889324B1

公开(公告)日：2005-05-03

申请号：US09442056

申请日：1999-11-16

申请人： Yoichi Kanai ,  Masuyoshi Yachida

发明人： Yoichi Kanai ,  Masuyoshi Yachida

IPC分类号： G09C1/00 ,  G08C19/00 ,  H04L9/00 ,  H04L9/08 ,  H04L9/32 ,  H04N1/387 ,  H04N1/44

CPC分类号： H04L9/3247 ,  H04L9/3263

摘要： A digital measurement apparatus measures a physical measurement object, provides a digital signature of public-key cryptography to measured data of a thus-measured physical quantity, and manages the measured data. The apparatus generates at least a pair of a public key and a private key, to be used for the digital signature of the public-key cryptography, through a key generating algorithm.

摘要翻译： 数字测量装置测量物理测量对象，将公钥密码学的数字签名提供给所测量的物理量的测量数据，并管理测量数据。 该设备通过密钥生成算法生成用于公钥密码术的数字签名的至少一对公钥和私钥。

公开(公告)号：US07774605B2

公开(公告)日：2010-08-10

申请号：US11082889

申请日：2005-03-18

申请人： Yoichi Kanai ,  Masuyoshi Yachida

发明人： Yoichi Kanai ,  Masuyoshi Yachida

IPC分类号： H04L29/06

CPC分类号： H04L9/3247 ,  H04L9/3263

摘要： A digital measurement apparatus measures a physical measurement object, provides a digital signature of public-key cryptography to measured data of a thus-measured physical quantity, and manages the measured data. The apparatus generates at least a pair of a public key and a private key, to be used for the digital signature of the public-key cryptography, through a key generating algorithm.

摘要翻译： 数字测量装置测量物理测量对象，将公钥密码学的数字签名提供给所测量的物理量的测量数据，并管理测量数据。 该设备通过密钥生成算法生成用于公钥密码术的数字签名的至少一对公钥和私钥。

公开(公告)号：US20070143620A1

公开(公告)日：2007-06-21

申请号：US11562264

申请日：2006-11-21

申请人： Yoichi Kanai ,  Masuyoshi Yachida ,  Tomio Mizuno ,  Tatsuya Furukawa ,  Yoichi Ishikawa

发明人： Yoichi Kanai ,  Masuyoshi Yachida ,  Tomio Mizuno ,  Tatsuya Furukawa ,  Yoichi Ishikawa

IPC分类号： H04L9/00

CPC分类号： G06F21/64

摘要： A method of certifying the existence of electronic information released on a network at a time and date. The network connects one or more computer servers and a plurality of client computers with each other. Electronic information of a web page stored in one of the plurality of client computers is accessed using information of its location from one of the computer servers based on a request from one of the client computers. A copy of the electronic information is then obtained. Attribute information is generated from the location, access time, and date when the electronic information is accessed. An electronic certificate may be generated by uniquely specifying the electronic information and the attribute information as inherent information identifying the electronic information. The copy of the electronic information is stored in a memory by tying up the electronic information with the electronic certificate and the attribute information. At least the electronic certificate, the attribute information, and preferably the copy of the electronic information can also be read and provided from the memory to the one of the client computers or its operator as a requester.

摘要翻译： 一种在时间和日期证明在网络上发布的电子信息的存在的方法。 网络将一个或多个计算机服务器和多个客户端计算机相互连接。 基于来自其中一个客户端计算机的请求，使用来自计算机服务器之一的其位置的信息来访问存储在多个客户端计算机之一中的网页的电子信息。 然后获得电子信息的副本。 属性信息是从访问电子信息的位置，访问时间和日期生成的。 可以通过将电子信息和属性信息唯一地指定为识别电子信息的固有信息来生成电子证书。 通过用电子证书和属性信息搭载电子信息，将电子信息的副本存储在存储器中。 至少电子证书，属性信息以及优选地电子信息的副本也可以从存储器读取并提供给客户端计算机或其操作者之一作为请求者。

公开(公告)号：US20050166057A1

公开(公告)日：2005-07-28

申请号：US11082878

申请日：2005-03-18

申请人： Yoichi Kanai ,  Masuyoshi Yachida

发明人： Yoichi Kanai ,  Masuyoshi Yachida

IPC分类号： G09C1/00 ,  G08C19/00 ,  H04L9/00 ,  H04L9/08 ,  H04L9/32 ,  H04N1/387 ,  H04N1/44

CPC分类号： H04L9/3247 ,  H04L9/3263

摘要： A digital measurement apparatus measures a physical measurement object, provides a digital signature of public-key cryptography to measured data of a thus-measured physical quantity, and manages the measured data. The apparatus generates at least a pair of a public key and a private key, to be used for the digital signature of the public-key cryptography, through a key generating algorithm.

公开(公告)号：US20050166044A1

公开(公告)日：2005-07-28

申请号：US11082889

申请日：2005-03-18

申请人： Yoichi Kanai ,  Masuyoshi Yachida

发明人： Yoichi Kanai ,  Masuyoshi Yachida

IPC分类号： G09C1/00 ,  G08C19/00 ,  H04L9/00 ,  H04L9/08 ,  H04L9/32 ,  H04N1/387 ,  H04N1/44

CPC分类号： H04L9/3247 ,  H04L9/3263

摘要： A digital measurement apparatus measures a physical measurement object, provides a digital signature of public-key cryptography to measured data of a thus-measured physical quantity, and manages the measured data. The apparatus generates at least a pair of a public key and a private key, to be used for the digital signature of the public-key cryptography, through a key generating algorithm.