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:
Dec. 13, 1988
Filed:
Mar. 31, 1987
Applicant:
Inventors:
Masao Kanno, Shimodate, JP;
Naoki Fukutomi, Yuki, JP;
Yorio Iwasaki, Shimodate, JP;
Fujio Kojima, Shimodate, JP;
Hidehiro Nakamura, Shimodate, JP;
Assignee:
Hitachi Chemical Company, Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H05K / ; H05K / ;
U.S. Cl.
CPC ...
174 685 ; 29831 ; 361416 ;
Abstract
A high-density wired circuit board obtained by providing an auxiliary grid at the position of centroid of a main grid and by employing wiring in the inclined direction mainly instead of wiring in the XY directions mainly can make the space between wires and through-holes large without narrowing a wiring pitch.