YK

Yutaka Koba

AK Arakawa Kagaku Kogyo Kabushiki Kaisha: 1 patents #1 of 3Top 35%
Overall (1997): #54,336 of 185,788Top 30%
1
Patents 1997

Issued Patents 1997

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
5606016 Process for preparing colorless rosins Masao Maeda, Yukiharu Yamada 1997-02-25