Abstract: In one embodiment, an MRI apparatus includes: a scanner that includes a static magnetic field magnet, a gradient coil, and a WB coil; and processing circuitry. The processing circuitry is configured to: cause the scanner to image, under a first imaging method, a tissue including a perfusion route of body fluid that removes waste products of the object the body fluid including neurofluid; generate an anatomical image of the tissue from first data acquired by imaging under the first imaging method; cause the scanner to image perfusion behavior of the body fluid in real time under a second imaging method using non-contrast perfusion imaging; generate a perfusion image indicating the perfusion behavior of the body fluid from second data acquired by imaging under the second imaging method; and generate a fused image by combining the anatomical image and the perfusion image.

Abstract: In one embodiment, an MRI apparatus includes: a scanner that includes a static magnetic field magnet, a gradient coil, and a WB coil; and processing circuitry. The processing circuitry is configured to: cause the scanner to image, under a first imaging method, a tissue including a perfusion route of body fluid that removes waste products of the object the body fluid including neurofluid; generate an anatomical image of the tissue from first data acquired by imaging under the first imaging method; cause the scanner to image perfusion behavior of the body fluid in real time under a second imaging method using non-contrast perfusion imaging; generate a perfusion image indicating the perfusion behavior of the body fluid from second data acquired by imaging under the second imaging method; and generate a fused image by combining the anatomical image and the perfusion image.

Abstract: A method of releasing a locking state of an optical pickup apparatus having a feeding unit having a feeding motor, a lead screw rotated by the feeding motor and provided with a spiral groove formed in the outer circumferential surface thereof, and a slider for converting the rotating motion of the lead screw into a rectilinear reciprocating motion and transmitting the rectilinear reciprocating motion to a pickup unit, includes alternately repeating regular and reverse rotations of the lead screw so as to release the locking state in which contact portions of the slider are deviated from the spiral groove of the lead screw.

Abstract: An optical disc drive adjusts the skew and the misalignment of the rotation center of an optical disc and a light beam center of an optical pick-up. The optical disc drive includes an optical pick-up recording/reproduce information onto/from the optical disc, pick-up shafts guiding the optical pick-up, an adjusting device moving the pick-up shafts vertically to adjust a slope of the optical pick-up, and shaft guides guiding the pick-up shafts to travel vertically and horizontally. The shaft guides include guide surfaces contacting the pick-up shafts. The shaft guides guide the pick-up shafts to travel in the direction near the turntable when the pick-up shafts move upward, and guide the pick-up shafts to move in the direction far way from the turntable when the pick-up shafts move downward.

Abstract: An optical disk player which has low production costs and prevents the generation of noise. The optical disk player includes a pick-up device for recording data on a disk or reading the data recorded on the disk and a feeding device for moving the pick-up device in a radial direction of the disk. The feeding device includes a feeding motor, a lead screw rotated by the feeding motor, and a slider. The lead screw has a spiral groove formed in the outer cylindrical surface thereof. The slider includes contact portions inserted into the spiral groove of the lead screw to convert the rotary motion of the lead screw into a rectilinear reciprocating motion and a pressure portion for preventing the contact portions from being separated from the spiral groove, thereby preventing the generation of noise.