NT

Nobusuke Takumi

IK Ishihara Sangyo Kaisha: 1 patents #2 of 12Top 20%
Overall (1997): #97,583 of 185,788Top 55%
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, Arata Koyama, Shigeru Takatori, Kouichi Tamura, Tokuo Suita 1997-03-11