ST

Shoei Takada

DC Dowa Mining Co.: 1 patents #157 of 324Top 50%
TK Tanaka Kikinzoku Kogyo K.K.: 1 patents #216 of 436Top 50%
Overall (All Time): #3,835,124 of 4,157,543Top 95%
1
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
5252305 Process of recovering platinum group metal Nobuyasu Ezawa, Hiroshi Inoue, Hitoshi Masuda 1993-10-12