SO

Shigeru Okada

NC Nihon Cement Co.: 1 patents #13 of 50Top 30%
SI Sanyo Chemical Industries: 1 patents #242 of 607Top 40%
Overall (All Time): #3,816,055 of 4,157,543Top 95%
1
Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
5181961 Cement composition Yasuhide Umaki, Rokuro Tomita, Fumiaki Hondo 1993-01-26