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. 01, 2025
Filed:
Dec. 20, 2022
Riso Technologies Corporation, Tokyo, JP;
Noboru Nitta, Tagata Shizuoka, JP;
RISO Technologies Corporation, Tokyo, JP;
Abstract
A liquid ejection head includes actuators spaced along a first direction between a first edge and a second edge of a substrate in a second direction. Individual wirings are connected to a first terminal of an actuator and has a terminal portion at the first edge of the substrate. A common wiring has a first portion and a plurality of second portions. Each second portion is branched from the first portion in the second direction and individually connects to a second terminal of an actuator. The first portion extends along the first direction on the substrate and has a first end terminal and a second end terminal spaced from each other. A monitor terminal is at a position between the first and second end terminals. The monitor terminal extends in the second direction from the first edge of the substrate toward the first portion to which it is electrically connected.