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. 23, 2006
Filed:
Jul. 08, 2004
Applicants:
Atsushi Omote, Osaka, JP;
Tomoko Suzuki, Nara, JP;
Masa-aki Suzuki, Osaka, JP;
Inventors:
Assignee:
Matsushita Electric Industrial Co., Ltd., Osaka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C04B 35/03 (2006.01); C04B 35/486 (2006.01); C04B 35/495 (2006.01);
U.S. Cl.
CPC ...
Abstract
It is a principal object of the present invention to provide low thermal expansion materials able to answer to the needs of various uses. The present invention relates to low thermal expansion materials constituted substantially from a crystalline body represented by a compositional formula RM(QO), wherein R represents at least one selected from Zr and Hf, M represents at least one selected from Mg, Ca, Sr, Ba and Ra, and Q represents at least one selected from W and Mo.