Inventor · disambiguated record
Sadao Tachibana
Also filed as: TACHIBANA SADAO
6 granted patents·127 citations·filing 1988–1997
85Inventor score
Technology areasH01H
Files withOKI ELECTRIC IND CO LTD6
Top patents by PatentIndex Score
6 records- 0180US4927990ASpring-biased push-button switch having a spring-loaded tactile feedback featureOKI ELECTRIC IND CO LTD·Filed 1989·Granted May 22, 1990·30 cites·15 claims
- 0279US4851618AKeyboardOKI ELECTRIC IND CO LTD·Filed 1988·Granted Jul 25, 1989·31 cites·2 claims
- 0371US4874913ALuminous element holding structure for an illuminated key switchOKI ELECTRIC IND CO LTD·Filed 1988·Granted Oct 17, 1989·19 cites·3 claims
- 0464US5914468AKeyboard unit and key switchOKI ELECTRIC IND CO LTD·Filed 1997·Granted Jun 22, 1999·21 cites·39 claims
- 0564US5256843AKeyboard switch and method of manufacturing the sameOKI ELECTRIC IND CO LTD·Filed 1992·Granted Oct 26, 1993·20 cites·7 claims
- 0642US4837412AKeyboard of a membrane contact typeOKI ELECTRIC IND CO LTD·Filed 1988·Granted Jun 6, 1989·6 cites·3 claims
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