Inventor · disambiguated record
Youichi Imagawa
Also filed as: IMAGAWA YOUICHI
4 granted patents·131 citations·filing 1991–1992
80Inventor score
Files withRYOBI LTD4
Top patents by PatentIndex Score
4 records- 0184US5176116ALubricating device of four-stroke cycle engine unit for portable working machineRYOBI LTD·Filed 1991·Granted Jan 5, 1993·46 cites·12 claims
- 0283US5213074ALubricating device of four-stroke cycle engine unit for portable working machineRYOBI LTD·Filed 1992·Granted May 25, 1993·43 cites·6 claims
- 0368US5267536AFour-stroke engine having an improved valve mechanismRYOBI LTD·Filed 1991·Granted Dec 7, 1993·22 cites·27 claims
- 0460US5243937APortable engine unitRYOBI LTD·Filed 1991·Granted Sep 14, 1993·20 cites·13 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →