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US 6,183,577 B2Granted
Method and apparatus for manufacturing an optical information medium
AssigneeMatsushita Electric Industrial Co., Ltd.
InventorsToshikazu Kozono, Toshio Yanai, Manabu Nakanishi, Kiyoshi Inoue
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Abstract
A method for manufacturing an optical information medium has a step of bending at least one of a first board and a second board having a center hole, a step of applying a radiation-curing resin onto the bent board in a doughnut form while the bent board is rotated, and a step of lapping the other board on the bent board and rotating the paired boards integrally.
Claims6
A method for manufacturing an optical information medium comprising the steps of:
- bending a first board having a center hole;
- applying a radiation-curing resin onto the bent first board in a doughnut form while the bent first board is rotated;
- and
- after applying the radiation-curing resin, placing a second board having a center hole on the bent first board so as to integrally pair the first and second boards and rotating the paired first and second boards integrally,
- wherein in the step of placing the second board on the bent first board and rotating, the bent first board is maintained in a bent condition.
2 more elements
Dependencies are inferred from the claim text.