TH

Takao Hirayama

HC Hitachi Chemical Company: 1 patents #5 of 49Top 15%
Overall (1982): #29,379 of 81,411Top 40%
1
Patents 1982

Issued Patents 1982

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4309330 Copolymer emulsion Ryoji Ukita 1982-01-05