HN

Hajime Nakano

OC Osaka Gas Co.: 1 patents #4 of 33Top 15%
📍 Echizen, JP: #3 of 5 inventorsTop 60%
Overall (1989): #108,057 of 140,708Top 80%
1
Patents 1989

Issued Patents 1989

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4886652 Production of metal carbides Gopala N. Krishnan, Michael Gusman, Sylvia M. Johnson, David J. Rowcliffe 1989-12-12