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:
Dec. 14, 1999
Filed:
Jul. 02, 1998
Arnold Chang Yang, Bao Shan, TW;
Yung-Shi Lin, Yeoug Her, TW;
Ming-Fa Hsieh, Hsinchu, TW;
Shih-Tung Cheng, Hsinchu, TW;
Min-Chieh Chou, Taipei, TW;
Industrial Technology Research Institute, Taipei, TW;
Abstract
An information recording medium including a substrate, an intermediate conductive layer, and a high molecular weight layer. When the high molecular weight layer is heated to close to its glass (transition) temperature by applying an AC field in order to induce thermal motion in molecular electric coupling poles present in the high molecular weight layer, the coupling poles are polarized by an external electric field applied between a microscopic probe tip and the intermediate conductive layer, the polarization becoming fixed when the temperature of the layer drops.