EP 0554084 A3 19940105 -
Publication
Application
Priority
JP 1272692 A 19920128
Abstract (en)
[origin: EP0554084A2] An illumination type key top having a button, a key seat, a key switch including a contact portion, and a light source. When the button is pressed, it presses the contact portion of the key switch via the key seat to cause the light source to emit light. The button and key seat are affixed to each other by adhesive, and each is made of a light transmitting material. A character or similar information is printed on the rear surface of the button such that the light is transmitted only through the character. <IMAGE>
IPC 1-7
IPC 8 full level
G06F 3/02 (2006.01); H01H 13/705 (2006.01)
CPC (source: EP)
H01H 13/705 (2013.01); H01H 2219/014 (2013.01); H01H 2219/028 (2013.01); H01H 2221/006 (2013.01); H01H 2221/07 (2013.01)
Citation (search report)
- [X] US 4937408 A 19900626 - HATTORI YOSHIHIRO [JP], et al
- [A] DE 9102919 U1 19910606
- [A] DE 3038613 A1 19810430 - CASIO COMPUTER CO LTD [JP]
- [A] DE 3441614 A1 19850711 - SHINETSU POLYMER CO [JP]
Designated contracting state (EPC)
GB IT SE
DOCDB simple family (publication)
EP 0554084 A2 19930804; EP 0554084 A3 19940105; AU 3207393 A 19930729; CA 2088087 A1 19930729; JP 2710181 B2 19980210; JP H05204512 A 19930813
DOCDB simple family (application)
EP 93300612 A 19930128; AU 3207393 A 19930127; CA 2088087 A 19930126; JP 1272692 A 19920128