EY

Eiiti Yoneyama

SC Sumitomo Chemical: 1 patents #131 of 368Top 40%
📍 Niihama, JP: #15 of 51 inventorsTop 30%
Overall (1994): #138,561 of 165,921Top 85%
1
Patents 1994

Issued Patents 1994

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
5322947 Process for producing N,N'-bis(2,2,6,6-tetramethyl-4-piperidyl)alkanediamine Shinya Tanaka, Manji Sasaki, Shinichi Yachigo, Hiroki Yamamoto 1994-06-21