Inventor · disambiguated record
Hiroyuki Sawamoto
Also filed as: SAWAMOTO HIROYUKI
4 granted patents·166 citations·filing 1989–2003
79Inventor score
Top patents by PatentIndex Score
4 records- 0196US5088281AMethod and apparatus for determining deterioration of three-way catalysts in double air-fuel ratio sensor systemTOYOTA MOTOR CO LTD·Filed 1989·Granted Feb 18, 1992·111 cites·54 claims
- 0266US6583826B1Intermediate frequency circuit in television tuner with large attenuation of audio if signal in adjacent channelALPS ELECTRIC CO LTD·Filed 2000·Granted Jun 24, 2003·10 cites·3 claims
- 0366US5657734AFuel evaporative-gas emission preventing apparatusTOYOTA MOTOR CO LTD·Filed 1995·Granted Aug 19, 1997·37 cites·26 claims
- 0460US7129994B2Television tuner having level of harmonics of oscillation signal suppressed lowALPS ELECTRIC CO LTD·Filed 2003·Granted Oct 31, 2006·8 cites·1 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →