KK

Kouji Koyanagi

KA Kao: 1 patents #1,961 of 3,221Top 65%
Overall (All Time): #3,611,949 of 4,157,543Top 90%
1
Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
6048905 Liquid amine composition for emulsifiers for bitumen Katsuhiko Asamori, Shigeru Nagao, Ryoichi Tamaki, Takao Taniguchi, Keiichiro Tomioka 2000-04-11