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:
Mar. 06, 2012
Filed:
Dec. 17, 2007
Masato Hayashi, Amagasaki, JP;
Masami Yakabe, Tokyo, JP;
Nobuyoshi Koshida, Tokyo, JP;
Abstract
A pressure wave generator () includes a thermally conductive substrate (), a heat insulating layer () formed on one main surface of the substrate (), an insulator layer () formed on the heat insulating layer (), and a heat generator () formed on the insulator layer () to generate heat when a current containing an alternating component is applied thereto. The heat insulating layer () is formed containing at least one of silicon nitride (SiN), silicon dioxide (SiO), aluminum oxide (AlO), magnesium oxide (MgO), diamond crystalline carbon (C), aluminum nitride (AlN), and silicon carbide (SiC). The heat generator () is formed containing, for example, gold (Au) or tungsten (W).