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. 15, 2001
Filed:
Jul. 23, 1997
Applicant:
Inventors:
Yasutaka Sugimoto, Kyoto, JP;
Kazuo Kishida, Shiga-ken, JP;
Hirofumi Sunahara, Shiga-ken, JP;
Hiroshi Takagi, Otsu, JP;
Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B32B 1/706 ; C03C 1/00 ;
U.S. Cl.
CPC ...
B32B 1/706 ; C03C 1/00 ;
Abstract
An inorganic composition for low temperature firing comprising about 15 to 40 weight % of glass powder and about 60 to 85 weight % of cordierite, is disclosed. The glass powder is composed of about 20 to 60 weight % of SiO,, about 30 to 50 weight % of B,O,, about 5 to 30 weight % of MgO, 0 to about 15 weight % of Al,O,, and about 1 to 5 weight % of R,O (R is alkali metal). The inorganic composition is capable of being fired at a relative low temperature, and has a low thermal expansion coefficient and permittivity, as well as high mechanical strength.