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:
Jun. 16, 2026
Filed:
Mar. 26, 2024
Seiko Epson Corporation, Tokyo, JP;
Asami Okamoto, Matsumoto, JP;
Akira Miyagishi, Shiojiri, JP;
Seiko Epson Corporation, Tokyo, JP;
Abstract
A first drive signal includes a first drive pulse that displaces a first piezoelectric element in a first period of a drive cycle, a second drive signal includes a first reference potential maintaining element that maintains a reference potential in a first start period including a start point of the drive cycle, a first potential maintaining element that maintains a first potential in a second period of the drive cycle following the first period, and a second reference potential maintaining element that maintains the reference potential in a first end period that starts after an end of the second period and includes an end point of the drive cycle, a vibration detection section detects a remaining vibration that occurs in a first discharge section in the second period, and a generation section maintains the first potential at a constant potential, regardless of a temperature detected by a temperature detection section.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile