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:
Apr. 04, 2017
Filed:
Nov. 18, 2011
Takanori Matsuda, Chofu, JP;
Hiroshi Saito, Kawasaki, JP;
Tatsuo Furuta, Machida, JP;
Jumpei Hayashi, Chofu, JP;
Takayuki Watanabe, Yokohama, JP;
Toshihiro Ifuku, Yokohama, JP;
Takanori Matsuda, Chofu, JP;
Hiroshi Saito, Kawasaki, JP;
Tatsuo Furuta, Machida, JP;
Jumpei Hayashi, Chofu, JP;
Takayuki Watanabe, Yokohama, JP;
Toshihiro Ifuku, Yokohama, JP;
Canon kabushiki Kaisha, Tokyo, JP;
Abstract
A barium titanate piezoelectric ceramic having good piezoelectric properties and mechanical strength and a piezoelectric element that includes the ceramic are provided. A method for making a piezoelectric ceramic includes forming a compact containing barium titanate particles, sintering the compact, and decreasing the temperature of the compact. The sintering includes (A) increasing the temperature of the compact to a temperature range of a shrinking process of the compact; (B) increasing the temperature of the compact to a temperature range of a liquid phase sintering process of the compact; (C) decreasing the temperature of the compact to the temperature range of the shrinking process of the compact; and (D) retaining the third temperature.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile