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. 06, 2026
Filed:
Apr. 01, 2022
Applicant:
Niterra Co., Ltd., Nagoya, JP;
Inventors:
Yoshinobu Hirose, Nagoya, JP;
Takayuki Matsuoka, Nagoya, JP;
Kentaro Ichihashi, Nagoya, JP;
Masato Yamazaki, Nagoya, JP;
Assignee:
Niterra Co., Ltd., Nagoya, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C04B 35/495 (2006.01); H10N 30/853 (2023.01); H10N 30/87 (2023.01);
U.S. Cl.
CPC ...
C04B 35/495 (2013.01); H10N 30/853 (2023.02); H10N 30/87 (2023.02); C04B 2235/3234 (2013.01); C04B 2235/3255 (2013.01); C04B 2235/3262 (2013.01); C04B 2235/763 (2013.01); C04B 2235/768 (2013.01); C04B 2235/85 (2013.01);
Abstract
A lead-free piezoelectric ceramic composition includes a main phase containing an alkali niobate/tantalate perovskite oxide, and a subphase containing a spinel compound containing Ti (titanium). The piezoelectric ceramic composition contains Mn (manganese). A Ti content x is greater than 0 mol % and not greater than 4 mol %, and the Ti content x and an Mn content y satisfy an expression, x2/y≤20.0.
Hirose, Yoshinobu. (2026). Lead-free piezoelectric ceramic composition and piezoelectric element (U.S. Patent No. 12753122). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/12753122
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile