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Offset amount measuring method and apparatus |
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| 7260052 |
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| 7092351 |
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2006-08-15 |
| 6837072 |
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2005-01-04 |
| 6813237 |
Optical recording medium having a plurality of meandering groove tracks, optical recording medium producing apparatus and optical recording medium producing method |
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| 6692809 |
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2004-02-17 |
| 6687214 |
Recording medium and apparatus and method for manufacturing the same |
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2004-02-03 |
| 6618350 |
Rewritable optical recording medium and manufacturing method and apparatus therefor |
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2003-09-09 |
