Shigefumi Tokumasu

SC Sumitomo Chemical: 1 patents #47 of 237Top 20%

📍 Ooita, JP: #6 of 38 inventorsTop 20%

Overall (2005): #101,310 of 245,428Top 45%

Patents 2005

Issued Patents 2005

Showing 1–1 of 1 patents

Patent #	Title	Co-Inventors	Date
6960698	Method for treating tar	Mamoru Seino	2005-11-01