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. 26, 2013
Filed:
Nov. 21, 2008
Katsuhiko Takano, Yokohama, JP;
Manabu Sueoka, Yokohama, JP;
Junji Yasuda, Kawasaki, JP;
Shigeo Takenaka, Kamakura, JP;
Katsumasa Nishikawa, Tokyo, JP;
Katsuhiko Takano, Yokohama, JP;
Manabu Sueoka, Yokohama, JP;
Junji Yasuda, Kawasaki, JP;
Shigeo Takenaka, Kamakura, JP;
Katsumasa Nishikawa, Tokyo, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
A print head having high printing reliability, in which temperature unevenness is suppressed even when printing is performed using a print head having an increased length and density of an ejection opening array, can be provided. Specifically, a temperature equalizing member such as a heat pipe and a cooling liquid passage is disposed between a first support substrate and each of second support substrates or is disposed inside the first support substrate. This makes it possible to equalize temperature among the plurality of second support substrates and further equalize temperature among the printing element substrates bonded to these support substrates. In addition, the temperature equalizing member is made close to the printing element substrate, thus making it possible to efficiently equalize temperature.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile