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Junichiro Ando

YCYamaguchi Seiken Kogyo Co.: 2 patents #1 of 1Top 100%
Overall (2019): #155,086 of 560,194Top 30%
2 Patents 2019

Issued Patents 2019

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
10233357 Polishing composition for magnetic disc substrate — 2019-03-19
10233358 Polishing composition for magnetic disc substrate — 2019-03-19

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