Inventor · disambiguated record
Masataka Matsumoto
Also filed as: MATSUMOTO MASATAKA
10 granted patents·118 citations·filing 1978–2017
89Inventor score
Top patents by PatentIndex Score
10 records- 0188US4430532AElectronic watch multi-curcuit pushbutton switchCITIZEN WATCH CO LTD·Filed 1982·Granted Feb 7, 1984·34 cites·10 claims
- 0272US4368369AElectrical switchCITIZEN WATCH CO LTD·Filed 1981·Granted Jan 11, 1983·17 cites·5 claims
- 0364US4234947ASolar battery powered timepieceCITIZEN WATCH CO LTD·Filed 1978·Granted Nov 18, 1980·15 cites·9 claims
- 0460US4479724AWater-resisting structure for a watchCITIZEN WATCH CO LTD·Filed 1983·Granted Oct 30, 1984·14 cites·6 claims
- 0553US4487513AWatch case structureCITIZEN WATCH CO LTD·Filed 1983·Granted Dec 11, 1984·11 cites·9 claims
- 0647US4456388AWatch case structureCITIZEN WATCH CO LTD·Filed 1981·Granted Jun 26, 1984·9 cites·5 claims
- 0743US10947742B2Recyclable synthetic resin tile and method of manufacturing the sameSHINKO KASEI CO LTD·Filed 2017·Granted Mar 16, 2021·0 cites·17 claims
- 0843US4785982AWatch case and band attachment structureCITIZEN WATCH CO LTD·Filed 1987·Granted Nov 22, 1988·11 cites·1 claims
- 0939US4397568ATimepiece push-button structureCITIZEN WATCH CO LTD·Filed 1981·Granted Aug 9, 1983·4 cites·3 claims
- 1033US4391534AGlass mounting structure for watchesCITIZEN WATCH CO LTD·Filed 1981·Granted Jul 5, 1983·3 cites·7 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →