Inventor · disambiguated record

Kohji Tsukuma

Also filed as: TSUKUMA KOHJI

1 granted patent·17 citations·filing 1981–1981

38Inventor score

Technology areasC01B

Files withTOYO SODA MFG CO LTD1

Top patents by PatentIndex Score

1 record

0166US4387079AMethod of manufacturing high-purity silicon nitride powderTOYO SODA MFG CO LTD·Filed 1981·Granted Jun 7, 1983·17 cites·3 claims

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Kohji Tsukuma — Patent Inventor | PatentIndex