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:
Nov. 18, 2003
Filed:
Nov. 16, 2001
Yoshio Umayahara, Shiga, JP;
Yoshikatsu Nishikawa, Shiga, JP;
Nippon Electric Glass Co., Ltd., Shiga, JP;
Abstract
The present invention provides a glass ceramics dielectric material, comprising: a crystallizable glass powder in an amount of from 40% to 100% by mass; and a ceramics powder in an amount of from 0% to 60% by mass, wherein the crystallizable glass powder comprises: SiO in an amount of from 35% to 65% by mass; CaO in an amount of from 10% to 30% by mass; MgO in an amount of from 10% to 20% by mass; and ZnO in an amount of from 0.5% to 35% by mass, and wherein the material is capable of forming: diopside, CaMgSi O , as crystals; and at least one of hardestnite, Ca ZnSiO , and willemite, Zn SiO , as crystals; and a sintered glass ceramics, comprising: diopside, CaMgSi O , as crystals; and at least one of hardestnite, Ca ZnSiO , and willemite, Zn SiO , as crystals.