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AssigneeSumitomo Metal Mining Co., Ltd.
InventorsTadahito Kanaizuka, Atsushi Kawamoto, Koichi Yamagishi, Shinichi Yasuda, Yasunori Yamanobe, Shinichi Hayashi
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A magnetic disc manufacturing apparatus is includes a polishing device for conducting a surface polishing treatment on a disc, a supply device for supplying lubricant onto the polished disc, and a feeding mechanism for feeding the disc between the devices. If necessary, it is provided with a curing device for curing the lubricant on the disc. The treatments of the devices and the disc feeding operation are synchronized with one another, and a disc processed in each device is fed to a next device at a constant time interval by the feeding mechanism, thereby performing a continuous disc manufacturing process.
A method of fabricating a plurality of magnetic discs of corresponding quality from a plurality of workpieces which each comprise a disc base plate, a layer of magnetic material on the disc base plate and a protective layer on the layer of magnetic material, said method comprising the steps of:
A method of providing consistent lubricating properties throughout a batch lot of fabricated magnetic discs which each comprise a disc base plate, a layer of magnetic material on the disc base plate and a protective layer on the layer of magnetic material, said method comprising the steps of:
A method of fabricating a plurality of magnetic discs of corresponding quality from a plurality of workpieces which each comprise a disc base plate, a layer of magnetic material on the disc base plate and a protective layer on the layer of magnetic material, said method comprising the steps of:
Dependencies are inferred from the claim text.