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:
May. 17, 2005
Filed:
Apr. 23, 2003
Javier Hernando Santiago, Wake Forest, NC (US);
Robert David Parsons, Raleigh, NC (US);
Javier Hernando Santiago, Wake Forest, NC (US);
Robert David Parsons, Raleigh, NC (US);
International Business Machines Corporation, Armonk, NY (US);
Abstract
A frictional printing device, system and method prints on thermal paper using heat generated by frictional contact. A frictional actuator motivates a frictional heating element to frictionally contact the thermal paper. The thermal paper is chemically treated to react to heat by changing color. Heat is generated by frictional contact of the frictional heating element against the thermal paper. The frictional contact may be provided through repetitive movement of the frictional heating element. An image is formed by selectively positioned frictional contact between the frictional heating element and the thermal paper.