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. 12, 2020
Filed:
Mar. 07, 2019
Yuzuru Kuramochi, Kanagawa, JP;
Daisuke Takagi, Kanagawa, JP;
Satoshi Okano, Kanagawa, JP;
Takahiko Matsumoto, Kanagawa, JP;
Koichi Muramatsu, Kanagawa, JP;
Satoshi Nakazawa, Kanagawa, JP;
Ryuya Mashiko, Tokyo, JP;
Yuzuru Kuramochi, Kanagawa, JP;
Daisuke Takagi, Kanagawa, JP;
Satoshi Okano, Kanagawa, JP;
Takahiko Matsumoto, Kanagawa, JP;
Koichi Muramatsu, Kanagawa, JP;
Satoshi Nakazawa, Kanagawa, JP;
Ryuya Mashiko, Tokyo, JP;
Ricoh Company, Ltd., Tokyo, JP;
Abstract
Provided is a liquid droplet forming device including: a liquid container capable of containing a liquid; a membranous member disposed at a bottom of the liquid container and including a discharging hole; a deforming unit capable of deforming the membranous member; and a driving unit configured to drive the deforming unit by outputting a discharging signal for deforming the membranous member to discharge the liquid or a suppressing signal for suppressing residual vibration of the membranous member, wherein the suppressing signal is a signal based on natural vibration period Tof the membranous member, wherein an amplitude of the suppressing signal is lower than or equal to an amplitude of the discharging signal, and wherein interval time Tfrom when outputting of the discharging signal is ended until when outputting of the suppressing signal is started satisfies a formula: T=(m−)×T, where m represents a positive integer.