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:
Feb. 03, 2015
Filed:
Aug. 23, 2011
Yuzuru Ishida, Yokohama, JP;
Takuya Hatsui, Tokyo, JP;
Kazuaki Shibata, Oita, JP;
Takeru Yasuda, Kawasaki, JP;
Ryoji Oohashi, Yokohama, JP;
Yoshiyuki Imanaka, Kawasaki, JP;
Koichi Omata, Kawasaki, JP;
Hideo Tamura, Kawasaki, JP;
Kousuke Kubo, Kawasaki, JP;
Yuji Tamaru, Yokohama, JP;
Yuzuru Ishida, Yokohama, JP;
Takuya Hatsui, Tokyo, JP;
Kazuaki Shibata, Oita, JP;
Takeru Yasuda, Kawasaki, JP;
Ryoji Oohashi, Yokohama, JP;
Yoshiyuki Imanaka, Kawasaki, JP;
Koichi Omata, Kawasaki, JP;
Hideo Tamura, Kawasaki, JP;
Kousuke Kubo, Kawasaki, JP;
Yuji Tamaru, Yokohama, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
When protective portions are independently provided for each energy generation element, a leakage current inspection between the protective portions and the energy generation elements cannot be performed at once. Therefore, there is a concern that the inspection in manufacturing a substrate for liquid ejection head requires time. Therefore, the substrate for liquid ejection head is manufactured by performing a leakage current inspection between a connecting portion that is electrically connected to plurality of protective portions and a terminal to which the plurality of energy generation elements are connected, and thereafter removing the connecting portion.