Inventor · disambiguated record
Manabu Kurotobi
Also filed as: KUROTOBI MANABU
4 granted patents·40 citations·filing 1993–1997
73Inventor score
Files withKUBOTA KK4
Top patents by PatentIndex Score
4 records- 0174US5346182ATeeming troughKUBOTA KK·Filed 1993·Granted Sep 13, 1994·16 cites·6 claims
- 0253US5960835ACast iron pipe surface-modified for corrosion prevention and method of modifying the cast iron pipe surface for corrosion preventionKUBOTA KK·Filed 1997·Granted Oct 5, 1999·18 cites·5 claims
- 0331US6016948AMethod of forming pipe spigot ridgeKUBOTA KK·Filed 1997·Granted Jan 25, 2000·6 cites·10 claims
- 0425US5513794AMethod for fixing stopper ring to pipe spigotKUBOTA KK·Filed 1994·Granted May 7, 1996·0 cites·6 claims
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