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:
May. 08, 1984
Filed:
Mar. 22, 1983
Sho Masujima, Tokyo, JP;
Masahide Shibuya, Nikahomachi, JP;
Iwaya Shoichi, Kisagatamachi, JP;
Kenichi Umeda, Honjo, JP;
Yasunobu Oikawa, Nikahomachi, JP;
Hisao Abe, Kisagatamachi, JP;
Yoshifumi Midori, Honjo, JP;
Shinobu Fujiwara, Nikahomachi, JP;
Nobuaki Kikuchi, Kisagatamachi, JP;
TDK Kabushiki Kaisha, Tokyo, JP;
Abstract
A D-E hysteresis loop of ferroelectrics known in the art has a square shape when the ferroelectrics are a BaTiO.sub.3 single crystal. Such ferroelectrics are used as a non-linear dielectric element of, for example a pulse generating device. The non-linear dielectric element according to the present invention consists of a polycrystal, which is mainly composed of BaTiO.sub.3 and has the chemical composition expressed by the formula A.sub.y B.sub.z O.sub.3, wherein the molar ratio of y/z ranges from 0.92 to 0.99. The non-linearity is excellent and the temperature dependence of the A.sub.y B.sub.z O.sub.3 composition is considerably low.