To provide an external keypad offering superior operational feeling and simple input operation when operating an electronic apparatus with a touch panel capable of displaying a plurality of key top images.
An external keypad 1 which can be attached to an electronic apparatus 10 with a touch panel 11, capable of displaying a key top image 12a for enabling a desired input by a touch operation, includes: a keyboard 22 assembling key tops 22a corresponding to positions of respective key top images 12a; fixing means 41 and 42 for positioning the key tops 22a at the positions of the key top images 12a; and dome sections 22b which are located at the lower parts of the key tops 22a and are elastically bendable and deformable by pressing from the upper parts of the key tops 22a and release of the pressing.
NAKATO NOBORU
OKUMA TADASHI
Tomoko Nakatani