Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Takehisa Minowa0
Hajime Nakamura0
Date of Patent
April 8, 2008
0Patent Application Number
110048590
Date Filed
December 7, 2004
0Patent Citations Received
Patent Primary Examiner
Patent abstract
A direct-acting actuator is provided comprising a stator section (16), an attachment section (6) secured to the stator section, micro-beams (8, 10) extending from the attachment section, a rotor section (12) supported for swing motion by the micro-beams, a permanent magnet (18) disposed in the stator section, and a coil (4) disposed in the rotor section. Electric current is conducted through the coil in the magnetic field created by the permanent magnet for causing the micro-beams to be displaced for inducing swing motion of the rotor section. The actuator can be assembled to a small size, typically a width of 1-10 mm, a length of 1-10 mm, and a height of 0.1-5 mm.
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