KA

Kazuya Aoyagi

SI Sumitomo Metal Industries: 1 patents #630 of 1,462Top 45%
Overall (All Time): #3,989,085 of 4,157,543Top 100%
1
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Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4565664 Drawn tubing manufacturing process and apparatus therefor Shigeki Ikehata, Kuniharu Shutoh 1986-01-21