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:
Jan. 03, 2017
Filed:
Dec. 13, 2011
Applicants:
Keiichi Hatano, Takasaki, JP;
Hiroyuki Shimizu, Takasaki, JP;
Yutaka Doshida, Takasaki, JP;
Inventors:
Assignee:
TAIYO YUDEN CO., LTD., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L 41/187 (2006.01); C04B 35/00 (2006.01); C04B 35/495 (2006.01); H03H 9/02 (2006.01); H01H 57/00 (2006.01); H01L 41/43 (2013.01); H01L 41/047 (2006.01);
U.S. Cl.
CPC ...
H01L 41/1873 (2013.01); C04B 35/495 (2013.01); H01H 57/00 (2013.01); H01L 41/0471 (2013.01); H01L 41/43 (2013.01); H03H 9/02031 (2013.01); H03H 9/02543 (2013.01); C04B 2235/3201 (2013.01); C04B 2235/3203 (2013.01); C04B 2235/3255 (2013.01); C04B 2235/3291 (2013.01); C04B 2235/5445 (2013.01); C04B 2235/656 (2013.01); C04B 2235/768 (2013.01); C04B 2235/77 (2013.01); C04B 2235/80 (2013.01);
Abstract
In a piezoelectric ceramic which has an alkali-containing niobate-based perovskite structure in which constituent elements are Li, Na, K, Nb, and O, a LiNbOcrystal phase is intentionally deposited on a piezoelectric ceramic having an alkali-containing niobate-based perovskite structure, whereby sintering becomes possible at about 1000° C. rather than at the normally required sintering temperature of 1050° C. or greater.