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:
Feb. 25, 2020
Filed:
Dec. 12, 2018
Seiko Epson Corporation, Tokyo, JP;
Siko Epson Corporation, Tokyo, JP;
Abstract
There is provided a flow channel member in which a flow channel of a liquid is formed by a plurality of flow channel forming members, the flow channel member including: a first flow channel forming member that includes a light absorbing member having absorbing properties with respect to laser light; a second flow channel forming member that includes a light transmitting member having transmitting properties with respect to the laser light and is welded to a first surface of the first flow channel forming member; and a third flow channel forming member that includes a light transmitting member having transmitting properties with respect to the laser light and is welded to a second surface of the first flow channel forming member. The first surface and the second surface are provided at positions where planes along the both surfaces intersect with each other.