AK

Akio Koh

DC Daiken Trade & Industry Co.: 1 patents #1 of 5Top 20%
📍 Okayama, JP: #29 of 100 inventorsTop 30%
Overall (1997): #179,969 of 185,788Top 100%
1
Patents 1997

Issued Patents 1997

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
5648154 Inorganic constructional board and method of manufacturing the same Hisashi Fujiwara, Kiyoshi Kurosaki, Shigezoh Masamoto, Keiji Shutoh 1997-07-15