YK

Yoshiharu Kumagai

SI Sumitomo Metal Industries: 1 patents #630 of 1,462Top 45%
Overall (All Time): #3,818,523 of 4,157,543Top 95%
1
Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
5191037 Biodegradable polymeric composition Yoshiharu Doi 1993-03-02