SS

Shigeru Sugiyama

AC Asahi Kasei Kogyo Co.: 1 patents #8 of 123Top 7%
Overall (1989): #56,815 of 140,708Top 45%
1
Patents 1989

Issued Patents 1989

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4877308 Light shielding screen structure and a process for producing the same Osamu Okuno 1989-10-31