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. 09, 2019
Filed:
Apr. 27, 2018
Toshiba Tec Kabushiki Kaisha, Shinagawa-ku, Tokyo, JP;
Hiroyuki Ishikawa, Shizuoka, JP;
Kazuhiko Ohtsu, Shizuoka, JP;
TOSHIBA TEC KABUSHIKI KAISHA, Tokyo, JP;
Abstract
A liquid circulation device comprises a liquid chamber connected with a liquid discharge section that discharges liquid, a circulation section which circulates the liquid in a flow path containing the liquid chamber and the liquid discharge section, a liquid supply section, a pressure adjustment section and a control section that, according to fluctuation velocity of the pressure, replenishes the liquid through the liquid supply section if the detected pressure is equal to or smaller than a predetermined pressure value or lower than the predetermined pressure value and the pressure fluctuation velocity is equal to or greater than a predetermined speed or faster than the predetermined speed and adjusts the pressure of the liquid discharge section through the pressure adjustment section and the pressure fluctuation velocity is slower than the predetermined speed or equal to or smaller than the predetermined speed.