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:
Jun. 18, 1996
Filed:
May. 04, 1994
Applicant:
Inventors:
Yasushi Sawada, Aichi, JP;
Eturo Yasuda, Okazaki, JP;
Hiroshi Matuoka, Anjo, JP;
Michihiro Wakimoto, Okazaki, JP;
Masahiro Tomita, Anjo, JP;
Yoshinori Nakayama, Okazaki, JP;
Assignee:
Nippon Soken Inc., Nishio, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F27B / ;
U.S. Cl.
CPC ...
264 57 ; 264 58 ;
Abstract
A method for preparing a piezoelectric or dielectric ceramic sheet by firing a shaped body made of a piezoelectric or dielectric ceramic powder while the shaped body is sandwiched between substrates. The method results in a significant improvement in the degree of displacement of a piezoelectric ceramic and significantly decreased warpage of the shaped body during sintering.