Showa Denko K.k.

Zhipeng Wang

Akira Sakawaki

Yuji Murakami

Manabu Ueda

A production method of a magnetic recording medium of the present invention includes: a step of forming a magnetic layer () on a non-magnetic substrate (); a step of forming a dissoluble layer () on the magnetic layer (); a step of forming a mask layer () on the dissoluble layer (); a step of patterning the dissoluble layer () and the mask layer () to a shape corresponding to a magnetic recording pattern (); a step of performing a partial modification or removal of the magnetic layer () by use of the patterned mask layer (); and a step of dissolving the dissoluble layer () with a chemical agent so as to remove the dissoluble layer () together with the mask layer () formed thereon from the top of the magnetic layer (), wherein the magnetic recording medium has the magnetically-separated magnetic recording pattern ().

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Oyama, Japan

Zhipeng Wang