Inventor · disambiguated record

Yoshimitsu Koyama

Also filed as: KOYAMA YOSHIMITSU

1 granted patent·1 citations·filing 2018–2018

15Inventor score

Technology areasB05C

Files withNHK SPRING CO LTD1

Top patents by PatentIndex Score

1 record

0166US11065641B2Coil spring manufacturing method and coil spring manufacturing deviceNHK SPRING CO LTD·Filed 2018·Granted Jul 20, 2021·1 cites·4 claims

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