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Patent applications and USPTO patent grants for Katoh; Taku.The latest application filed is for "method and system for controlling copy generations of digital data".
Patent | Date |
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Record medium, record medium manufacturing device, computer readable record medium on which program is recorded, and data presentation device Grant 7,233,667 - Katoh , et al. June 19, 2 | 2007-06-19 |
Multimedia adaptive scrambling system (MASS) Grant 6,888,943 - Lam , et al. May 3, 2 | 2005-05-03 |
Access control for an information processing device Grant 6,779,044 - Katoh August 17, 2 | 2004-08-17 |
Digital watermark embedding device, digital watermark detection device and recording medium recording computer readable program for realizing functions of two devices Grant 6,757,405 - Muratani , et al. June 29, 2 | 2004-06-29 |
Copy-guard system and information recording medium used in the same system Grant 6,556,679 - Kato , et al. April 29, 2 | 2003-04-29 |
Method And System For Controlling Copy Generations Of Digital Data App 20020073037 - KATOH, TAKU | 2002-06-13 |
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