Inventor · disambiguated record
Masahiko Waki
Also filed as: WAKI MASAHIKO
8 granted patents·113 citations·filing 1978–1989
87Inventor score
Files withCITIZEN WATCH CO LTD8
Top patents by PatentIndex Score
8 records- 0180US4313187AWater resisting crown structure for electronic wristwatchesCITIZEN WATCH CO LTD·Filed 1980·Granted Jan 26, 1982·36 cites·3 claims
- 0274US4234948AWatchglass fixing structureCITIZEN WATCH CO LTD·Filed 1978·Granted Nov 18, 1980·22 cites·9 claims
- 0360US4496248AStructure for a watch case made of cemented carbideCITIZEN WATCH CO LTD·Filed 1982·Granted Jan 29, 1985·15 cites·3 claims
- 0454US4391533ABack cover fixing structure for wristwatchCITIZEN WATCH CO LTD·Filed 1982·Granted Jul 5, 1983·12 cites·5 claims
- 0544US5215235AWatch bandCITIZEN WATCH CO LTD·Filed 1989·Granted Jun 1, 1993·11 cites·8 claims
- 0641US4223527ARetaining spring for a wristwatch caseCITIZEN WATCH CO LTD·Filed 1978·Granted Sep 23, 1980·8 cites·12 claims
- 0740US4544288AImpact dot printing headCITIZEN WATCH CO LTD·Filed 1983·Granted Oct 1, 1985·5 cites·3 claims
- 0839US4397568ATimepiece push-button structureCITIZEN WATCH CO LTD·Filed 1981·Granted Aug 9, 1983·4 cites·3 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →