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.

Date of Patent:
Nov. 05, 2019

Filed:

Mar. 28, 2018
Applicant:

Brother Kogyo Kabushiki Kaisha, Nagoya, Aichi, JP;

Inventors:

Shoko Ota, Okazaki, JP;

Nobumasa Tanaka, Nagoya, JP;

Ryuji Horata, Gamagori, JP;

Assignee:

BROTHER KOGYO KABUSHIKI KAISHA, Nagoya-Shi, Aichi-Ken, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B41J 2/175 (2006.01); H05K 1/02 (2006.01); H05K 1/11 (2006.01); H05K 1/18 (2006.01);
U.S. Cl.
CPC ...
H05K 1/0259 (2013.01); B41J 2/1753 (2013.01); B41J 2/17523 (2013.01); B41J 2/17546 (2013.01); B41J 2/17553 (2013.01); H05K 1/112 (2013.01); H05K 1/181 (2013.01); H05K 2201/10204 (2013.01);
Abstract

A circuit board to be mounted on a casing of a cartridge includes an insulating substrate, an integrated circuit mounted on the substrate, terminals and a dummy electrode. The terminals are electrically connected to the integrated circuit, while the dummy electrode is electrically disconnected from the integrated circuit. The terminals and dummy electrode are formed on the substrate to satisfy an inequity of L1+L2<L3, where L1 is a shortest distance among distances between edges of the terminals and an edge of the dummy electrode in a direction perpendicular to a predetermined direction in which the terminals are aligned with one another; L2 is a shortest distance between an edge of the dummy electrode and an edge of the casing in the predetermined direction; and L3 is a shortest distance among distances between edges of the terminals and the edge of the casing in the predetermined direction.


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