KS

Katsumi Sakaguchi

HI Hitachi: 1 patents #17,742 of 28,497Top 65%
Overall (All Time): #4,004,097 of 4,157,543Top 100%
1
Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4619768 Method of removing crude oil sludge Sankichi Takahashi, Harumi Matsuzaki, Toshimi Mukushi, Katsuya Ebara, Tsunehiko Takakusagi +4 more 1986-10-28