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:
Sep. 10, 2013
Filed:
Feb. 17, 2005
Applicant:
Tetsuo Yumoto, Tokyo, JP;
Inventor:
Tetsuo Yumoto, Tokyo, JP;
Assignee:
Sankyo Kasei Co., Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H05K 3/42 (2006.01);
U.S. Cl.
CPC ...
Abstract
A molding pin for a metal die is prevented from breaking, solder is surely deposited, and thus, a circuit pitch can be reduced to the limit. On the front plane of a circuit board, prescribed circuit patterns made of a conductive material are formed, and on the rear plane, prescribed circuit patterns are also formed. On the circuit board, a through hole is formed to carry electricity between the circuit patterns on both planes. The inner shape of the through hole is narrow in a direction between the adjacent circuit patterns and wide in a circuit extending direction.