Inventor · disambiguated record
Hisao Yoshikawa
Also filed as: YOSHIKAWA HISAO
3 granted patents·43 citations·filing 1974–1983
71Inventor score
Files withCITIZEN WATCH CO LTD3
Top patents by PatentIndex Score
3 records- 0168US4481742AMachine tool elevating and guiding apparatusCITIZEN WATCH CO LTD·Filed 1983·Granted Nov 13, 1984·20 cites·2 claims
- 0265US4536993AGrinding machineCITIZEN WATCH CO LTD·Filed 1983·Granted Aug 27, 1985·13 cites·2 claims
- 0356US3988621ASupporting structure for a thickness-shear type quartz oscillatorCITIZEN WATCH CO LTD·Filed 1974·Granted Oct 26, 1976·10 cites·3 claims
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