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Process for producing stamper of multi-valued ROM disc, apparatus for producing the same, and resulting disc Grant 7,990,838 - Hanaoka , et al. August 2, 2 | 2011-08-02 |
Surface-emitting Laser Element, Surface-emitting Laser Array, Optical Scanning Device, And Image Forming Apparatus App 20110123227 - HANAOKA; Katsunari | 2011-05-26 |
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