Matsushita Electric Industrial Co., Ltd.

Takeshi Kuriwada

Hiroyuki Ikeda

Yuzo Seo

Masahiro Kawashima

Toshihiko Kuriyama

Youji Arita

A magnetic pattern forming apparatus, which is designed to form a desired magnetic pattern on a magnetic disk having a magnetic layer on a substrate, is made up of a mask having a pattern identical or similar to the desired magnetic pattern, a projection optical system for exposing the magnetic disk to a spot-like energy beam coming through the mask to heat the magnetic layer for projecting the mask pattern to the magnetic disk at a one-to-one ratio or a predetermined reduction ratio, a magnetic field applying device for applying an external magnetic field to the magnetic disk, a control unit for conducting scanning with the spot-like energy beam with respect to the magnetic disk and the mask in their radial directions while rotating the magnetic disk and the mask.

Magnetic pattern forming method, magnetic pattern forming apparatus, magnetic disk, and magnetic recording apparatus

A method and device for forming a magnetic pattern in a magnetic recording medium, a magnetic recording medium formed thereby and a magnetic recording device that includes a magnetic recording medium formed by this method and/or device. The magnetic recording medium has a magnetic layer, a protective layer, and a lubricant layer formed on a substrate in this order, and the magnetic pattern is formed by locally heating the magnetic layer and applying an external magnetic field to the magnetic layer.

METHOD FOR FORMING A MAGNETIC PATTERN IN A MAGNETIC RECORDING MEDIUM, METHOD FOR PRODUCING A MAGNETIC RECORDING MEDIUM, MAGNETIC PATTERN FORMING DEVICE, MAGNETIC RECORDING MEDIUM AND MAGNETIC RECORDING DEVICE

Growing community of inventors

Kanagawa, Japan

Takeshi Kuriwada