Abstract: A monolithic two- or three-rail floating magnetic head capable of carrying out data recording/reproducing with improved reliability. The monolithic floating magnetic head includes two floating rails arranged so as to face a magnetic medium, a magnetic core arranged so as to be positioned at an end of a slider, and a magnetic recording/reproducing gap defined in the magnetic core. At least one of the floating rails which is positioned on a side near the gap is provided at an end thereof defined on a rearward side based on a direction of traveling of the magnetic medium with a chamfered section which is formed at an azimuth angle with respect to an edge of the end. Such construction of the magnetic head permits recording/reproducing of data by the magnetic head to be carried out without picking up a noise and prevents particles from falling off from an end of the head, thus improving reliability of the data recording/reproducing.

Abstract: Glass is surface reinforced by providing a surface layer which contains an oxide component, typically silicon oxide in more excess than the underlying base glass, the oxide component exhibiting higher chemical or mechanical durability than the base glass itself. A surface of glass is tailored by a dry process, typically by exposure to UV radiation in the presence of ozone such that the oxide component is present more at the surface than in the underlying glass while a heavy metal such as Pb is driven out. A magnetic head having such a surface-reinforced sealing glass for bonding a core block to a slider is highly reliable.

Abstract: According to this invention a floating type magnetic head has a floating section in the form of rails on a magnetic slider and a magnetic gap is formed on the slider at an outermost side thereof so as to be capable of being positioned at an outermost circumference of a magnetic disk. Since the tracks located at the outermost circumference of a disk are the longest, the present invention allows the recording wavelength to be shortened and the recording density to be increased.

Abstract: Glass is surface reinforced by providing a surface layer which contains an oxide component, typically silicon oxide in more excess than the underlying base glass, the oxide component exhibiting higher chemical or mechanical durability than the base glass itself. A surface of glass is tailored by a dry process, typically by exposure to UV radiation in the presence of ozone such that the oxide component is present more at the surface than in the underlying glass while a heavy metal such as Pb is driven out. A magnetic head having such a surface-reinforced sealing glass for bonding a core block to a slider is highly reliable.

Abstract: Glass is surface reinforced by providing a surface layer which contains an oxide component, typically silicon oxide in more excess than the underlying base glass, the oxide component exhibiting higher chemical or mechanical durability than the base glass itself. A surface of glass is tailored by a dry process, typically by exposure to UV radiation in the presence of ozone such that the oxide component is present more at the surface than in the underlying glass while heavy metal such as Pb is driven out. A magnetic head having such a surface-reinforced sealing glass for bonding a core block to a slider is highly reliable.