| 摘要 |
PROBLEM TO BE SOLVED: To provide a mobile terminal device capable of attaining improvement in rigidity and waterproof performance of a case cabinet constituting the mobile terminal device. SOLUTION: On an inner side surface 121a of a side plate case part 121 of a fixed rear case 120 constituting a cellular phone 10, there are disposed contact type electrostatic sensors 140, 141 142 each of which functions as a side key for detecting a touch with a finger of a user. At outside positions of the side plate case part 121 corresponding to portions where the electrostatic sensors 140, 141, 142 are disposed, there are formed marks indicating functions and positions of the electrostatic sensors 140, 141, 142. COPYRIGHT: (C)2010,JPO&INPIT
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