KK

Keietsu Kato

JC Japan Petroleum Exploration Co.: 1 patents #32 of 93Top 35%
NC Nitto Chemical Industry Co.: 1 patents #86 of 179Top 50%
Overall (All Time): #3,735,284 of 4,157,543Top 90%
1
Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
5487425 Composition and method for recovery of petroleum and gas Takamasa Ohno, Yoshiyuki Yamaguchi, Masami Murakami, Shogo Suzuki, Shoichi Kanda +1 more 1996-01-30