SN

Seiichi Nagaoka

SC Sumitomo Osaka Cement Co.: 1 patents #4 of 13Top 35%
Overall (2002): #120,170 of 266,432Top 50%
1
Patents 2002

Issued Patents 2002

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
6419741 Cement clinker and cement containing the same Tatsuo Ikabata, Takanori Yamamoto, Tatsushi Akiyama, Ayaji Yasumoto 2002-07-16