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:
Jul. 12, 2022
Filed:
Jun. 14, 2019
Applicant:
Nippon Chemical Industrial Co., Ltd., Tokyo, JP;
Inventors:
Junya Fukazawa, Tokyo, JP;
Toru Hata, Tokyo, JP;
Assignee:
Nippon Chemical Industrial Co., Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C04B 35/447 (2006.01); C01B 25/45 (2006.01); C01B 25/37 (2006.01);
U.S. Cl.
CPC ...
C04B 35/447 (2013.01); C01B 25/372 (2013.01); C01B 25/45 (2013.01); C01P 2004/61 (2013.01); C01P 2006/12 (2013.01); C01P 2006/32 (2013.01); C04B 2235/326 (2013.01); C04B 2235/5409 (2013.01); C04B 2235/5436 (2013.01); C04B 2235/5445 (2013.01); C04B 2235/9607 (2013.01);
Abstract
A negative thermal expansion material made of zirconium phosphate tungstate containing an Al atom, and having a thermal expansion coefficient of −2.0×10to −3.3×10/K. According to the present invention, a negative thermal expansion material made of zirconium phosphate tungstate having various thermal expansion coefficients, and an industrially advantageous manufacturing method thereof can be provided.