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:
Jan. 29, 2019
Filed:
Aug. 24, 2017
Toshiba Tec Kabushiki Kaisha, Tokyo, JP;
Shuhei Yokoyama, Mishima Shizuoka, JP;
Ryutaro Kusunoki, Mishima Shizuoka, JP;
Ikuo Fujisawa, Mishima Shizuoka, JP;
TOSHIBA TEC KABUSHIKI KAISHA, Tokyo, JP;
Abstract
A droplet ejecting head includes a board, a pressure chamber, a nozzle, and an actuator configured to cause a pressure change in the pressure chamber in response to an electrical signal supplied from a drive circuit. The drive circuit is configured to set the electrical signal at a first voltage level, change the electrical signal to a second voltage level, set the electrical signal to a third voltage level during a time period after changing the electrical signal from the first voltage level to the second voltage level, the time period being equal to a primary natural oscillation period of the actuator when the pressure chamber and the nozzle are filled with solution, and set the electrical signal to the first voltage level after the time period has elapsed. The third voltage level is between the first and second voltage levels or equal to the second voltage level.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile