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Yabe; Mitoru
Tokyo, JP
No. of patents:

Patent Number Title Of Patent Date Issued
8171506 Optical-system driving device effecting switchover between objective lenses for achieving focal May 1, 2012
An optical-system driving device is achieved that can switch over between objective lenses and is space-saving, lightweight, and simply-configured. An optical-system driving device for recording information onto or playing it back from an optical storage medium, includes a stationary
8154980 Object lens driving apparatus and manufacturing method thereof April 10, 2012
An objective lens driving apparatus includes an objective lens (13) collecting a light flux emitted from a light source on a optical disk (11), and a lens holder (14) holding the objective lens (13). The lens holder (14) includes a first bonding portion (14i) and a second bonding por
8042130 Optical driving device including a holder with a top face having a closed structure October 18, 2011
The optical driving device according to the present invention includes a holder for holding a plurality of optical each of which focuses on an optical disk a light beam outputted from a light source, focusing coils, and tracking coils; a plurality of elastic support members for supportin
7870572 Objective lens driving apparatus, assembling method thereof and optical head January 11, 2011
An object lens driving apparatus (100) includes a lens holder (4) that holds an object lens (1) facing a recording medium and is so supported that the lens holder (4) is movable toward and away from the surface of the recording medium. A focusing coil (5) is fixed in the interior of the
7701812 Optical element driving apparatus April 20, 2010
An optical element driving apparatus includes a holder that holds a plurality of switchable optical elements for focusing light on a recording medium, a resiliently deformable supporting unit that supports the holder, a focusing driving unit that drives the holder in a direction of o
7168082 Optical actuator January 23, 2007
An optical actuator according to this invention includes a focusing lens for focusing a laser beam on a information disk, a lens holder for holding the focusing lens, a focusing coil for driving the focusing lens in an axial direction of the laser beam, a tracking coil for driving the
6839899 Optical element driving device having two permanent magnets and one magnetic substance January 4, 2005
Tracking coils are fixed on side surfaces of a lens holder and a magnetic substance of axisymmetric shape is fixed on a lower surface of the lens holder, being sandwiched by a focusing coil. Moreover, end portions of the magnetic substance are opposed to respective N-pole surfaces of per

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