Inventor · disambiguated record
Yoji Utsumi
Also filed as: UTSUMI YOJI
8 granted patents·52 citations·filing 1990–2003
83Inventor score
Files withYAMAHA MOTOR CO LTD8
Top patents by PatentIndex Score
8 records- 0173US7363904B2Lubrication device of engineYAMAHA MOTOR CO LTD·Filed 2003·Granted Apr 29, 2008·15 cites·6 claims
- 0258US5044333ABalancing arrangement for internal combustion engineYAMAHA MOTOR CO LTD·Filed 1990·Granted Sep 3, 1991·19 cites·17 claims
- 0356US6966290B2Engine valve train deviceYAMAHA MOTOR CO LTD·Filed 2003·Granted Nov 22, 2005·8 cites·8 claims
- 0447US6904884B2Balance device for enginesYAMAHA MOTOR CO LTD·Filed 2003·Granted Jun 14, 2005·4 cites·9 claims
- 0544US7293756B2Engine fastening structureYAMAHA MOTOR CO LTD·Filed 2003·Granted Nov 13, 2007·2 cites·10 claims
- 0636US7021266B2Engine lubricating deviceYAMAHA MOTOR CO LTD·Filed 2003·Granted Apr 4, 2006·0 cites·5 claims
- 0735US7104241B2Engine fastening structureYAMAHA MOTOR CO LTD·Filed 2003·Granted Sep 12, 2006·0 cites·10 claims
- 0831US5165294AEngine, transmission assembly for vehicleYAMAHA MOTOR CO LTD·Filed 1990·Granted Nov 24, 1992·4 cites·11 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →