| 摘要 |
PROBLEM TO BE SOLVED: To provide a keyboard device in which the load of a user's right hand is reduced, and the efficiency of an information inputting work in the keyboard device is improved by allowing the user's left hand to share the information inputting work to input numeric or the like in the ten keys. SOLUTION: This keyboard device is constituted by arranging a ten key part at the left side of a character keying part.
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