Inventor · disambiguated record

Dai Koyama

Also filed as: KOYAMA DAI

1 granted patent·1 citations·filing 2001–2001

14Inventor score
Technology areasB61D
Files withTOKAI RYOKAKU TETSUDO KK1

Top patents by PatentIndex Score

1 record

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