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Patent applications and USPTO patent grants for Yamamuro; Masashi.The latest application filed is for "electronic watermark embedding device, electronic watermark detection device, method thereof, and program".
Patent | Date |
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Electronic watermark embedding device, electronic watermark detection device, method thereof, and program Grant 7,672,474 - Nakamura , et al. March 2, 2 | 2010-03-02 |
Electronic watermark embedding device, electronic watermark detection device, method thereof, and program Grant 7,489,796 - Nakamura , et al. February 10, 2 | 2009-02-10 |
Electronic Watermark Embedding Device, Electronic Watermark Detection Device, Method Thereof, and Program App 20080137903 - Nakamura; Takao ;   et al. | 2008-06-12 |
Electronic watermark embedding device, electronic watermark detection device, method thereof, and program App 20060126889 - Nakamura; Takao ;   et al. | 2006-06-15 |
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