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:
May. 10, 2016
Filed:
Jul. 01, 2015
Canon Kabushiki Kaisha, Tokyo, JP;
Soichiro Nagamochi, Kawasaki, JP;
Shuichi Tamatsukuri, Asaka, JP;
Souta Takeuchi, Fujisawa, JP;
Kenji Takahashi, Yokohama, JP;
Sadayoshi Sakuma, Oita, JP;
Hirokazu Komuro, Yokohama, JP;
Makoto Sakurai, Kawasaki, JP;
Yuzuru Ishida, Yokohama, JP;
Takeru Yasuda, Kawasaki, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
An ink jet recording head substrate is provided which includes a base substrate, a heat accumulation layer overlying the base substrate, a heating resistor layer including an electrothermal conversion portion and overlying the heat accumulation layer, a wiring layer electrically connected to the heating resistor layer, and an insulating protective layer covering the heating resistor layer and the wiring layer. The heat accumulation layer includes a porous cyclic siloxane film.