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:
Mar. 22, 2005
Filed:
Oct. 16, 2001
Masato Shimada, Nagano-ken, JP;
Yoshinao Miyata, Nagano-ken, JP;
Hiroyuki Kamei, Nagano-ken, JP;
Tetsushi Takahashi, Nagano-ken, JP;
Masato Shimada, Nagano-ken, JP;
Yoshinao Miyata, Nagano-ken, JP;
Hiroyuki Kamei, Nagano-ken, JP;
Tetsushi Takahashi, Nagano-ken, JP;
Seiko Epson Corporation, Tokyo, JP;
Abstract
Provided is an ink-jet recording head that prevents a vibration plate thereof from damage attributed to drive of a piezoelectric element, and an ink-jet recording apparatus. There are provided within a region facing the pressure generating chamber, a piezoelectric active portion, and a piezoelectric non-active portions, the piezoelectric non-active portions being provided on both end portions of the piezoelectric active portion in a longitudinal direction thereof. An electrode wiring is drawn out of an upper electrode which is provided on one end portion in the longitudinal direction of the pressure generating chamber. There is also provided a protection layer on the other end portion in the longitudinal direction of the pressure generating chamber for protecting the vibration plate. Rigidity of the vibration plate is thereby increased.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile