| 摘要 |
<p>A recording medium producing method produces an information recording medium by bonding a plurality of disk substrates having center holes by a bonding process in which the plurality of disk substrates are centered and bonded. The bonding process includes a real centering to insert a resiliently deformable center pin into the center holes of the plurality of disk substrates, and to expand the center pin from a contracted state to an expanded state so that the center pin in the expanded state pushes against inner peripheral parts of the plurality of disk substrates defining the center holes.</p> |
