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:
Dec. 23, 2025
Filed:
Sep. 15, 2023
Canon Kabushiki Kaisha, Tokyo, JP;
Shugo Nakayama, Tokyo, JP;
Tomofumi Nishikawara, Tochigi, JP;
Akiko Iimura, Tochigi, JP;
Masahiro Kuri, Tochigi, JP;
Tetsuya Yamamoto, Tochigi, JP;
CANON KABUSHIKI KAISHA, Tokyo, JP;
Abstract
A liquid discharge apparatus including a head configured to discharge a liquid, a chamber configured to contain the head, a circulation system configured to circulate a gas inside the chamber, an exhaust system configured to operate to exhaust the gas to an outside of the chamber, a filter provided in the circulation system and configured to remove a removal target contained in the gas, a detection unit configured to indirectly detect the removal target by detecting a detection target that is contained in the gas and different from the removal target, and a controller configured to operate the exhaust system when a concentration of the detection target detected by the detection unit is not lower than a threshold.