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:
Sep. 26, 2006
Filed:
Oct. 01, 2004
Toru Matsunaga, Miyagi, JP;
Shigeto Watanabe, Miyagi, JP;
Toshiyuki Kawamura, Miyagi, JP;
Kazuo Kurihara, Saitama, JP;
Yoshinori Satoh, Saitama, JP;
Toru Matsunaga, Miyagi, JP;
Shigeto Watanabe, Miyagi, JP;
Toshiyuki Kawamura, Miyagi, JP;
Kazuo Kurihara, Saitama, JP;
Yoshinori Satoh, Saitama, JP;
Sony Corporation, Tokyo, JP;
Abstract
An angular rate sensor includes a quadratic prism-like oscillatorformed by laminating a substrateand a piezoelectric material, the piezoelectric materialis made of piezoelectric ceramics including PZT (Lead Zirconate Titanate) as a main component, and the substrateis made of a material other than PZT having physical property values equivalent to or less than PZT, which is a main component of the piezoelectric ceramics, with respect to Young's modulus, thermal expansion coefficient, and the like.