Inventor · disambiguated record
Yukio Hagiwara
Also filed as: HAGIWARA YUKIO
4 granted patents·75 citations·filing 1982–1987
75Inventor score
Top patents by PatentIndex Score
4 records- 0171US4658420ATone responsible disabler circuit for an echo cancellerNEC CORP·Filed 1984·Granted Apr 14, 1987·35 cites·7 claims
- 0266US4852161AEcho canceller using an echo path status detectionNEC CORP·Filed 1987·Granted Jul 25, 1989·36 cites·3 claims
- 0333US4447138AObjective system for video discASAHI OPTICAL CO LTD·Filed 1982·Granted May 8, 1984·2 cites·4 claims
- 0429US4389100AObjective system for video discASAHI OPTICAL CO LTD·Filed 1982·Granted Jun 21, 1983·2 cites·3 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →