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:
Oct. 27, 2015
Filed:
Mar. 02, 2012
Kenji Nagareda, Aichi, JP;
Dunzhuo Dong, Aichi, JP;
Kenji Nagareda, Aichi, JP;
Dunzhuo Dong, Aichi, JP;
HONDA ELECTRONICS CO., LTD., Aichi, JP;
Abstract
A piezoceramic composition comprises, as the main phase, a crystalline phase of a perovskite structure signified as formula ABO, with Element A consisting of one or more elements selected from among K (potassium), Na (sodium) and Li (lithium) and with Element B consisting of one or more elements selected from among Nb (niobium), Ta (tantalum) and Sb (antimony), with Elements A and B comprising other elements as additives. An X-ray diffraction profile of crushed particles of the piezoceramic composition that are 10 μm or less in diameter has a diffraction peak indicating the presence of the main (single) phase as well as a heterogeneous phase of a crystalline structure signified as formula ABO(s<t<u) but not belonging to the perovskite structure.