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:
Oct. 11, 2011
Filed:
Jun. 06, 2006
Applicants:
Seiichi Kamiya, Yokohama, JP;
Yuji Tsuruoka, Kawasaki, JP;
Takashi Mori, Ohta-ku, JP;
Nobuhito Yamaguchi, Inagi, JP;
Masao Furukawa, Yokohama, JP;
Inventors:
Seiichi Kamiya, Yokohama, JP;
Yuji Tsuruoka, Kawasaki, JP;
Takashi Mori, Ohta-ku, JP;
Nobuhito Yamaguchi, Inagi, JP;
Masao Furukawa, Yokohama, JP;
Assignee:
Canon Kabushiki kaisha, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B05D 5/12 (2006.01); C23C 16/52 (2006.01);
U.S. Cl.
CPC ...
Abstract
A plurality of conductive patterns are formed so as to be arranged in a scanning direction of a recording head. A state of each of the conductive patterns and a state between the adjacent conductive patterns are electrically checked to detect a wire break and a short circuit in the conductive patterns.