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:
May. 11, 2021
Filed:
Nov. 12, 2019
Manabu Yamanaka, Kanagawa, JP;
Daisuke Takagi, Kanagawa, JP;
Shinnosuke Koshizuka, Kanagawa, JP;
Hiroshi Fujie, Kanagawa, JP;
Takeshi Akai, Kanagawa, JP;
Yu Yamaya, Kanagawa, JP;
Youhei Niitsuma, Kanagawa, JP;
Manabu Yamanaka, Kanagawa, JP;
Daisuke Takagi, Kanagawa, JP;
Shinnosuke Koshizuka, Kanagawa, JP;
Hiroshi Fujie, Kanagawa, JP;
Takeshi Akai, Kanagawa, JP;
Yu Yamaya, Kanagawa, JP;
Youhei Niitsuma, Kanagawa, JP;
Ricoh Company, Ltd., Tokyo, JP;
Abstract
Liquid discharge head comprising: liquid discharge unit, which includes discharge port, liquid retaining section configured to retain liquid to be discharged from the discharge port, and displacement section configured to discharge the liquid retained within the liquid retaining section from the discharge port; a pair of liquid storage sections, which are configured to store the liquid and are each connected to the liquid retaining section in the liquid discharge unit so that the liquid can flow; a pair of liquid feeding sections that are connected to the pair of liquid storage sections and are configured to feed the liquid between the liquid storage section and the liquid retaining section; and a pair of open and close sections that are each disposed at flow path between the liquid feeding section and the liquid storage section and are configured to open and close the flow path.