Inventor · disambiguated record

Mitsumasa Ohtaka

Also filed as: OHTAKA MITSUMASA

2 granted patents·6 citations·filing 1989–1990

50Inventor score

Technology areasB21D

Files withUSUI KIKUSAI SANGYO KAISHA LIM1 USUI KOKUSAI SANGYO KK1

Top patents by PatentIndex Score

2 records

0129US5007267AMethod and apparatus for manufacturing bellows pipeUSUI KOKUSAI SANGYO KK·Filed 1990·Granted Apr 16, 1991·3 cites·10 claims
0218US5056346AMethod and device for manufacturing bellows pipeUSUI KIKUSAI SANGYO KAISHA LIM·Filed 1989·Granted Oct 15, 1991·3 cites·5 claims

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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →