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. 24, 2018
Filed:
May. 18, 2015
Canon Kabushiki Kaisha, Tokyo, JP;
Hitoshi Takada, Yokohama, JP;
Yasuo Kotaki, Yokohama, JP;
Tetsuya Ohashi, Matsudo, JP;
Ryoji Inoue, Kawasaki, JP;
Takatoshi Kitagawa, Kawasaki, JP;
Hironori Murakami, Tokyo, JP;
Takeho Miyashita, Yokohama, JP;
Hiroki Hayashi, Kawasaki, JP;
Hironori Fukuchi, Kawasaki, JP;
Norihiro Ikebe, Kawasaki, JP;
Takashi Fukushima, Yokohama, JP;
CANON KABUSHIKI KAISHA, Tokyo, JP;
Abstract
A liquid storage unit including a first liquid storage chamber having a constant volume and being capable of holding liquid supplied from a liquid tank; a second liquid storage chamber communicating with the first liquid storage chamber; a pressure control chamber configured to change a pressure of the pressure control chamber through actuation of a pressure control unit; and an elastic member being configured to tightly partition the second liquid storage chamber and the pressure control chamber from each other and being deformable so as to increase and decrease a volume of the second liquid storage chamber in accordance with the pressure of the pressure control chamber. The elastic member is capable of removing bubbles in the first liquid storage chamber by increasing and decreasing the volume of the second liquid storage chamber through the deformation.