Abstract: A negative ion generating medium for generating negative ions from the surface of a mother material made of aluminum or aluminum alloy. The negative ion generating medium has the mother material of aluminum or aluminum alloy covered at the surface with an anodized layer on which a rare metal separated from a rare metal solution such as zirconium salt is deposited. As the rare metal is deposited in the pores provided in the anodized layer, its negative ion generating area can be increased thus releasing a large number of negative ions. The negative ion generating medium is manufactured by electrolytically processing the mother material in an electrolyte solution of sulfuric acid doped with a rare metal salt such as lithium salt to develop the anodized layer on the surface of the mother material and deposit the rare metal on the anodized layer.

Abstract: The present invention relates to a new urethane oligomer (A) and a resin composition comprising (A) and an unsaturated group containing polycarboxylic acid resin (B) that can be diluted with water and is excellent in providing a cured product and that is suitable for a solder resist and an interlayer dielectric layer because the cured product is excellent in flexibility, soldering-heat resistance or the like and allows a development with an organic solvent or a dilute alkali solution; a photosensitive resin composition suitable for an etching resist or a cover lay; and a photosensitive film obtained thereby.

Abstract: While a pinhole disk with pinholes is being rotated, a confocal image of a surface of a sample, which has passed through the pinholes, is imaged by a CCD camera. A vertical sync signal extraction circuit extracts a vertical sync signal from an image signal output from the CCD camera. A photodetector element senses the rotational state of the pinhole disk. A phase sync circuit synchronizes the phase of the vertical sync signal from the vertical sync signal extraction circuit with the phase of a sensor signal from the photodetector element, thereby controlling a drive motor for driving the pinhole disk.

Abstract: An image detecting apparatus comprises a rotating disk having pinholes that allow light to pass through, a photosensor for detecting the rotation of the disk, a CCD camera for capturing a confocal image of a specimen passed through the pinholes of the disk, a brushless DC motor for rotating the disk at a given speed, and an FPGA which produces a pulse-like brake signal having two levels for accelerating and decelerating the disk and its pulse width set variable and outputs it to the DC motor, thereby allowing the synchronization of the rotation of the disk with the image capture timing of the CCD camera.

Abstract: An ultrasonic motor comprises a piezoelectric element functioning as a driving source; a rectangular-parallelepipedic elastic body coupled to the piezoelectric element and vibrated by the piezoelectric element; and a driving circuit for generating a driving signal consisting of a burst wave with an envelope having attenuation characteristics in a vibration attenuation period of the elastic body and applying the driving signal to the piezoelectric element, thereby generating an extending/contracting vibration along a longitudinal direction of the elastic body and a bending vibration propagating in the longitudinal direction of the elastic body.