Inventor · disambiguated record

Yoichi Nishizawa

Also filed as: NISHIZAWA YOICHI

2 granted patents·26 citations·filing 1977–2003

60Inventor score

Technology areasB22F B62D

Files withKOYO SEIKO CO1 NIPPON COLUMBIA1

Top patents by PatentIndex Score

2 records

0155US4214893AMethod of making a magnetic powderNIPPON COLUMBIA·Filed 1977·Granted Jul 29, 1980·18 cites·16 claims
0247US6859704B2Self-alignment torque correcting apparatus for vehicle and electric power steering apparatusKOYO SEIKO CO·Filed 2003·Granted Feb 22, 2005·8 cites·4 claims

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