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:
Jun. 07, 2005
Filed:
Nov. 24, 2003
Kazuhito Gassho, Nagano-Ken, JP;
Toshihiro Shima, Nagano-Ken, JP;
Teruhito Kojima, Nagano-Ken, JP;
Seiko Epson Corporation, Tokyo, JP;
Abstract
A printer generates a public key with a passphrase containing at least printer position information, and holds the public key in a public key storage. When transmission of a public key is requested by a print client, the printer reads the public key from the public key storage and transmits the public key. The print clients transmits print transmitting data generated by encrypting print data with the previously acquired public key. The printer which has received the print transmitting data generates a private key with a passphrase containing at least printer position information. The printer decrypts the received print transmitting data with the private key.