Inventor · disambiguated record
Kenkichi Hirakawa
Also filed as: HIRAKAWA KENKICHI
5 granted patents·103 citations·filing 1975–2006
82Inventor score
Top patents by PatentIndex Score
5 records- 0192USD553159STractorKUBOTA KK·Filed 2006·Granted Oct 16, 2007·54 cites·1 claims
- 0280US7464782B2Tractor with cabinKUBOTA KK·Filed 2005·Granted Dec 16, 2008·19 cites·11 claims
- 0367US7648001B2Speed shift arrangement for work vehicleKUBOTA KK·Filed 2006·Granted Jan 19, 2010·8 cites·12 claims
- 0455US4033197ATransmission for tractorKUBOTO TEKKO KABUSHIKI KAISHA·Filed 1975·Granted Jul 5, 1977·15 cites·7 claims
- 0542US4304315ATractorKUBOTA LTD·Filed 1979·Granted Dec 8, 1981·7 cites·6 claims
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