Editing Keyboard switch by Hiroshi Hasegawa (section)

==Claims of the invention==

The claims of the invention are as follow:

* (1) A keyboard switch comprising an insulating substrate in which:
** (a) an electrode is fixed to the substrate and a second electrode is fixed to the said substrate, apart from the other. 
** (b) A dielectric between the electrodes. 
** (c) An auxiliary electrode  on a cross-sectional circular conical coil spring which has a large diameter as the base portion and small diameter in the other end, in contact with the dielectric. 
** (c) A button mounted on the smaller diameter of the auxiliary switch.
* (2) The keyboard switch according to claim (1) wherein the auxiliary electrode - by overspread action of first and second electrodes on the dielectric -  becomes flat after depressing the aforementioned button from claim (1).
* (3) A keyboard switch according to claim (2) where the auxiliary electrode has an end portion greater than the combination of the first and second electrodes.
* (4) A keyboard switch according to claim  (1) (2) (3) in which said auxiliary electrode has a circular section. 
* (5) A keyboard switch according to claim (4) in which a dielectric is attached to the auxiliary electrode.
* (6) A keyboard switch according to claim (4) in which the dielectric is attached to the surfaces of first and second electrodes.
* (7) A keyboard swich according to claims (1) (2) (3) in which the auxiliary electrode has a rectangular section with its base facing the insulating substrate
* (8) A keyboard switch according to claim (7) in which the dielectric is attached to the auxiliary electrode.
* (9) A keyboard switch according to claim (8) in which the dielectric is attached to first and second electrodes.