AK

Arata Koyama

IK Ishihara Sangyo Kaisha: 1 patents #2 of 12Top 20%
📍 Moriyama, JP: #36 of 169 inventorsTop 25%
Overall (1997): #175,025 of 185,788Top 95%
1
Patents 1997

Issued Patents 1997

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
5609789 Cobalt-containing magnetic iron oxide and process for producing the same Kiyoshi Asano, Nobusuke Takumi, Shigeru Takatori, Kouichi Tamura, Tokuo Suita 1997-03-11