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:
Aug. 25, 2026
Filed:
Mar. 26, 2024
Seiko Epson Corporation, Tokyo, JP;
Akira Miyagishi, Shiojiri, JP;
Asami Okamoto, Matsumoto, JP;
Seiko Epson Corporation, Tokyo, JP;
Abstract
An inspection signal includes a first potential-changing element having a potential that changes from a first potential to a second potential in one direction in a first time period, a first potential-maintaining element having the second potential maintained in a second time period immediately after the first time period, a second potential-changing element having a potential that changes from the second potential to a third potential in the other direction in a third time period immediately after the second time period, and a second potential-maintaining element having the third potential maintained in a fourth time period immediately after the third time period. When a natural vibration period of an ejecting section is TC, a length of the first time period is equal to or longer than 0.75×TC. A vibration detector detects a residual vibration in a detection period included in the fourth time period.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile