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:
Oct. 31, 2006
Filed:
Jun. 08, 2004
Applicant:
Myung-song Jung, Gyeonggi-do, KR;
Inventor:
Myung-song Jung, Gyeonggi-do, KR;
Assignee:
Samsung Electronics Co., Ltd., Suwon-Si, KR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B41J 2/045 (2006.01);
U.S. Cl.
CPC ...
Abstract
A microactuator using a shape memory alloy includes a substrate in which a space portion is formed, and a vibration plate which is installed on an upper surface of the substrate to cover the space portion, including a thin film formed of the shape memory alloy and at least one thin film on which a compressive residual stress acts. The vibration plate is initially transformed to bend to the space portion or to bend to be opposite to the space portion due to a bending moment caused by a compressive residual stress with respect to a first neutral axis, when the shape memory alloy is phase-transformed due to temperature rise.