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:
Dec. 10, 2013
Filed:
Feb. 15, 2012
Satoshi Mizukami, Kanagawa, JP;
Masaki Kato, Tokyo, JP;
Takahiko Kuroda, Hyogo, JP;
Yoshikazu Akiyama, Kanagawa, JP;
Kanshi Abe, Kanagawa, JP;
Satoshi Mizukami, Kanagawa, JP;
Masaki Kato, Tokyo, JP;
Takahiko Kuroda, Hyogo, JP;
Yoshikazu Akiyama, Kanagawa, JP;
Kanshi Abe, Kanagawa, JP;
Ricoh Company, Ltd., Tokyo, JP;
Abstract
An ink-jet head includes a nozzle plate having nozzles, a vibrating plate on the nozzle plate, liquid chambers formed of spaces partitioned by division walls, a piezoelectric element having a common electrode, a piezoelectric body and an individual electrode layered in this order on a surface of the vibrating plate, a first insulator film having a first opening and a second insulator film having a second opening layered in this order on the first surface, a first wire drawn from the individual electrode via the first opening and the second opening, a third insulator film having a third opening on the first wire; and a second wire drawn via the third opening, where the third insulator film is formed in a first region of the second insulator film and is not formed in a second region excluding a region including the first wire formed above the liquid chamber.