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:
Jan. 11, 2000
Filed:
Aug. 05, 1997
Yosuke Ozaki, Kokubunji, JP;
O.K. Print Corporation, Tokyo, JP;
Abstract
The present invention relates to a printed circuit board and a printed circuit board base material for use in the printed circuit board. The printed circuit board base material of the present invention is produced by impregnating a carbon core material such as carbon cloth with a first resin such as epoxy resin, and the printed circuit board of the present invention is characterized in that resin pores are opened on the printed circuit board base material, second resins such as epoxy resins are filled in the resin pores, circuit layers are formed on the printed circuit board base material, through holes connecting the circuit layer together are provided, and the center line of the resin pore is approximately in line with the center line of the through hole.