YK

Yasuji Kida

TS Tokuyama Soda: 1 patents #2 of 20Top 10%
Overall (1989): #42,091 of 140,708Top 30%
1
Patents 1989

Issued Patents 1989

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4882438 Photochromatic compounds Takashi Tanaka, Satoshi Imura 1989-11-21