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. 27, 2022
Filed:
Nov. 28, 2018
Canon Kabushiki Kaisha, Tokyo, JP;
Nobuto Kawahara, Utsunomiya, JP;
Yoshimasa Araki, Yokohama, JP;
Yuichi Iwasaki, Utsunomiya, JP;
Noriyasu Hasegawa, Utsunomiya, JP;
CANON KABUSHIKI KAISHA, Tokyo, JP;
Abstract
An ejection-material ejection apparatus and an imprinting apparatus are provided which are capable of quickly detecting damage of a flexible membrane and avoiding contact between an ejection material and an operating liquid even if part of the flexible membrane is damaged. The flexible membrane includes a first film () covering a first storing space () for the ejection material, a second film () covering a second storing space () for the operating liquid, and an inter-film spacesituated between the first film () and the second film (). A change in state of the inter-film space () resulting from communication between at least one of the first storing space () and the second storing space () and the inter-film space () is detected with a liquid sensor (), a flow speed sensor (), and a liquid leakage sensor ().