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Keyboard device
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Patent number 11,776,511
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Issue date Oct 3, 2023
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Roland Corporation
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Yukihide Takata
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G06 - COMPUTING CALCULATING COUNTING
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Keyboard device
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Patent number 11,776,512
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Issue date Oct 3, 2023
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Roland Corporation
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Masaki Kasubuchi
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G10 - MUSICAL INSTRUMENTS ACOUSTICS
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Keyboard device
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Patent number 11,289,060
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Issue date Mar 29, 2022
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Roland Corporation
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Yukihide Takata
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G10 - MUSICAL INSTRUMENTS ACOUSTICS
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Keyboard instrument
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Patent number 11,145,278
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Issue date Oct 12, 2021
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Roland Corporation
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Yukihide Takata
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B44 - DECORATIVE ARTS
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Keyboard device
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Patent number 9,646,578
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Issue date May 9, 2017
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Roland Corporation
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Yukihide Takata
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G10 - MUSICAL INSTRUMENTS ACOUSTICS
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Structure of a key
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Patent number 7,952,010
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Issue date May 31, 2011
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Roland Corporation
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Makoto Minakawa
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G10 - MUSICAL INSTRUMENTS ACOUSTICS