Inventor · disambiguated record

Keizo Yoshikawa

Also filed as: YOSHIKAWA KEIZO

2 granted patents·13 citations·filing 1998–2006

56Inventor score

Technology areasF16N H01F

Files withIDEMITSU KOSAN CO1 TOKAI RYOKAKU TETSUDO KK1

Top patents by PatentIndex Score

2 records

0160US7950334B2Ground coil device for magnetic levitation railway and method for manufacture thereofIDEMITSU KOSAN CO·Filed 2006·Granted May 31, 2011·3 cites·9 claims
0234US6155380AGrease filling device for electric motorTOKAI RYOKAKU TETSUDO KK·Filed 1998·Granted Dec 5, 2000·10 cites·20 claims

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