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Information record medium on which audio information differing in recording methods are recorded and apparatus for reproducing the same Grant 6,687,211 - Sawabe , et al. February 3, 2 | 2004-02-03 |
Information record medium, apparatus for recording the same and apparatus for reproducing the same App 20030206727 - Sawabe, Takao ;   et al. | 2003-11-06 |
Information Storage Medium With Aggregate Attribute Information, And Apparatus For Reproducing The Same App 20030189879 - ISHII, HIDEHIRO ;   et al. | 2003-10-09 |
Information record medium, apparatus for recording the same and apparatus for reproducing the same Grant 6,597,861 - Tozaki , et al. July 22, 2 | 2003-07-22 |
Information Record Medium On Which Audio Information Differing In Recording Methods Are Recorded And Apparatus For Reproducing The Same App 20030123351 - SAWABE, TAKAO ;   et al. | 2003-07-03 |
Information Record Medium, And Apparatus For And Method Of Reproducing The Same App 20020181937 - YAMAMOTO, KAORU ;   et al. | 2002-12-05 |
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Audio information recording medium and audio information reproducing apparatus App 20020145958 - Ishii, Hidehiro ;   et al. | 2002-10-10 |
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Information record medium, apparatus for recording the same and apparatus for reproducing the same enabling easy access to information Grant 6,108,486 - Sawabe , et al. August 22, 2 | 2000-08-22 |
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Offset compensation circuit Grant 4,965,867 - Tsuchida , et al. October 23, 1 | 1990-10-23 |
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Method for recording digital data so as to avoid operational error on reproduction Grant 4,872,171 - Wakumura , et al. October 3, 1 | 1989-10-03 |