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:
Aug. 28, 2001
Filed:
Feb. 14, 2000
Kengo Sugaya, Inashiki-gun, JP;
Terutoshi Nakao, Inashiki-gun, JP;
Riso Kagaku Corporation, Tokyo, JP;
Abstract
A thermal head is provided which comprises an insulation substrate, a heat-generating resistor on the insulation substrate, a conductive layer for supplying electric power thereto, and a protective layer provided thereon. In the thermal head, the protective layer is surface-treated with a water- and oil-repellent and heat-resistant organosilicon-containing compound to provide a contact angle with respect to water of 95 degrees or more. The organosilicon-containing compound is preferably a fluoroalkyl silane with a fluorinated carbon chain length of 6 to 10 carbon atoms, having a hydrolyzable reactive group at a terminal thereof. The compound is strongly bonded to the protective layer via a silanol group by heat-treatment at 50° C. or more. The protective layer surface may be properly pretreated with an organosilicon compound having an isocyanate group bonded to a silicon atom.