AK

Akio Koyama

SC Shin-Etsu Chemical Co.: 1 patents #79 of 225Top 40%
Overall (2005): #242,224 of 245,428Top 100%
1
Patents 2005

Issued Patents 2005

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
6878200 Mortar or concrete composition Masafumi Kikuchi, Usaburo Yano, Masahiko Minemura, Akira Yamamoto 2005-04-12