YA

Yoshiaki Arai

TC Tokyo Ohka Kogyo Co.: 1 patents #13 of 24Top 55%
📍 Wako, CA: #2 of 4 inventorsTop 50%
Overall (1989): #41,451 of 140,708Top 30%
1
Patents 1989

Issued Patents 1989

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4882260 Positive-working photosensitive quinone diazide composition with alkali insoluble dye and alkali soluble dye Hidekatsu Kohara, Nobuo Tokutake, Masanori Miyabe, Toshimasa Nakayama, Shingo Asaumi +1 more 1989-11-21