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:
Feb. 07, 2006
Filed:
Nov. 07, 2003
Tatsuo Oishi, Aichi, JP;
Tatsuo Oishi, Aichi, JP;
Brother Kogyo Kabushiki Kaisha, Nagoya, JP;
Abstract
The angles and sizes for each of the constituent members of the ink jet recording head is designed to satisfy the following relational expression:0·α·()·()≦0. in which a0=1.87686, b0=0.31786, c0=−0.18649, d0=−1.09273, e0=3.97019, f0=0.93332 and K0=0.05307 are satisfied when N is a number of layers in one of a piezoelectric element, A is a number of active layers in the piezoelectric element, α is an angle [°] which is one of internal angles of virtual lattices containing one of a cavity and forming a matrix and which is not higher than 90°, Spin is an area [mm] occupied by one lattice in the matrix, Scav is an area [mm] occupied by the cavity contained in one lattice in the matrix, and Spzt is an area [mm] occupied by an active portion of the piezoelectric element provided in accordance with one lattice in the matrix.