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:
Apr. 11, 2006
Filed:
Oct. 03, 2003
Applicants:
Yukihisa Takeuchi, Nishikamo-gun, JP;
Hiroyuki Tsuji, Nagoya, JP;
Kazumasa Kitamura, Ichinomiya, JP;
Nobuo Takahashi, Owariasahi, JP;
Inventors:
Yukihisa Takeuchi, Nishikamo-gun, JP;
Hiroyuki Tsuji, Nagoya, JP;
Kazumasa Kitamura, Ichinomiya, JP;
Nobuo Takahashi, Owariasahi, JP;
Assignee:
NGK Insulators, Ltd., Nagoya, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B41J 2/045 (2006.01);
U.S. Cl.
CPC ...
Abstract
A multislit type actuator including a plurality of piezoelectric actuators aligned and allocated like teeth of a comb formed on a substrate, wherein a condition of crystal grains in side surfaces of the piezoelectric actuators forming wall surfaces of a slit between the comb teeth is that the crystal grains under transgranular fracture are 1% or below.