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:
Aug. 24, 1999
Filed:
Sep. 09, 1997
Koji Kitamura, Sagamihara, JP;
Seiichi Takahashi, Sagamihara, JP;
Koji Nishi, Yokohama, JP;
Takayoshi Nishiyama, Yokohama, JP;
Abstract
When a multilayer substrate is formed by alternately laminating a plurality of substrates having coil patterns and preimpregs including an epoxy resin, and by pressing in the direction of lamination while heating, the epoxy resin is melted and may leak from between the substrates, and may form voids between the coil patterns so as to render the electrical insulation therebetween unsatisfactory. According to the present invention, a fence pattern or another structure is formed around each coil pattern, which substantially prevents leakage of the melted epoxy resin from between the substrates, and therefore, the spaces between the coil patterns remain securely filled with the epoxy resin.