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:
Jul. 29, 2014
Filed:
Dec. 12, 2012
Canon Kabushiki Kaisha, Tokyo, JP;
Noboru Kunimine, Tokyo, JP;
Takao Ogata, Tokyo, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
An inkjet recording method includes applying a pigment-containing first black ink to a recording medium to record an edge region of an image, and applying a pigment-containing second black ink to the recording medium to record an inner region of the image. A dynamic surface tension γof the first black ink determined by a maximum bubble pressure method for a lifetime of 100 ms and a dynamic surface tension γof the second black ink determined by a maximum bubble pressure method for a lifetime of 100 ms satisfy relationships of condition (1) of γ>γ, condition (2) of γ−γ≦20 mN/m, condition (3) of 40 mN/m≦γ, and condition (4) of 34 mN/m≦γ.