Inventor
ISHIKAWA TSUNEO
JP4 patents
Patents
4 patentsUS4414245ANov 8, 1983
Process for producing cobalt containing ferromagnetic iron oxides
ISHIHARA MINING & CHEMICAL CO9 citations70
US4501774AFeb 26, 1985
Process for the production of cobalt-containing magnetic iron oxide powder
ISHIHARA MINING & CHEMICAL CO5 citations60
US4486467ADec 4, 1984
Process for producing cobalt-containing magnetic iron oxide powder
ISHIHARA MINING & CHEMICAL CO3 citations59
US4560544ADec 24, 1985
Process for the preparation of acicular α-FeOOH for magnetic recording materials
ISHIHARA MINING & CHEMICAL CO3 citations56