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. 27, 2019
Filed:
Aug. 08, 2018
Applicant:
Keisuke Hayashi, Kanagawa, JP;
Inventor:
Keisuke Hayashi, Kanagawa, JP;
Assignee:
Ricoh Company, Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B41J 2/14 (2006.01); B41J 2/16 (2006.01);
U.S. Cl.
CPC ...
B41J 2/1433 (2013.01); B41J 2/14 (2013.01); B41J 2/14233 (2013.01); B41J 2/16 (2013.01);
Abstract
A liquid discharge head includes a flow path substrate including an individual liquid chamber communicating with a nozzle of discharging liquid; and a holding substrate joined to the flow path substrate by an adhesive bond and has an opening communicating with the individual liquid chamber, wherein the opening of the holding substrate has a wall surface crossing relative to a joining surface between the flow path substrate and the holding substrate, wherein an uneven portion is provided on the wall surface of the opening of the holding substrate, and wherein a part of the adhesive bond adheres to the uneven portion on the wall surface.