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. 19, 2025
Filed:
May. 16, 2023
Sho Kawakami, Kanagawa, JP;
Jun Zhang, Kanagawa, JP;
Yasunori Sugimoto, Kanagawa, JP;
Toshihiro Kanematsu, Kanagawa, JP;
Mizuki Otagiri, Kanagawa, JP;
Riku Maeshiro, Kanagawa, JP;
Kiyoshi Amari, Kanagawa, JP;
Sho Kawakami, Kanagawa, JP;
Jun Zhang, Kanagawa, JP;
Yasunori Sugimoto, Kanagawa, JP;
Toshihiro Kanematsu, Kanagawa, JP;
Mizuki Otagiri, Kanagawa, JP;
Riku Maeshiro, Kanagawa, JP;
Kiyoshi Amari, Kanagawa, JP;
RICOH COMPANY, LTD., Tokyo, JP;
Abstract
A liquid discharge head includes a nozzle plate, a housing, a channel, and a positioning member. The nozzle plate has a nozzle hole and a first positioning hole penetrating through the nozzle plate in a thickness direction of the nozzle plate. The housing is bonded to the nozzle plate to form a single bonded body and has a second positioning hole extending in a thickness direction of the housing. A liquid flows through the channel between the nozzle plate and the housing to the nozzle hole. The positioning member fits into the first positioning hole and the second positioning hole to position the nozzle plate relative to the housing. A length of the positioning member is smaller than a sum of a length of the first positioning hole and a length of the second positioning hole in the thickness direction of the nozzle plate, and larger than the length of the second positioning hole.