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. 01, 2010
Filed:
Mar. 05, 2007
Hiroshi Imai, Gyoda, JP;
Keiichi Matsushima, Gyoda, JP;
Yoshihiro Ushigusa, Gyoda, JP;
Surpass Industry Co., Ltd., Gyoda-shi, JP;
Abstract
A heat signal writing device forming a clear writing pattern of a heat signal is provided. A heat signal writing devicefor writing a heat signal in a medium traveling through a channel, which is secured to an appropriate position on the channel through which the medium flows, includes a Peltier elementfor writing the heat signal having a temperature change according to a desired pattern by heating or cooling; a channel supporting membershaped as a pyramid formed of a heat conductive material and having a bottom surface in close contact with a surface of the Peltier element, the tip of the pyramid being in direct contact with the channel; a heat sinkin close contact with another surface of the Peltier element; and a heat-resistant cover for covering the periphery of the Peltier element, excluding a channel contact surfaceat the tip, and the channel supporting member