P

Inventor

TAKUMI NOBUSUKE

JP5 patents
⚠️ This page may combine multiple inventors who share the name “TAKUMI NOBUSUKE”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

ISHIHARA SANGYO KAISHA

4 patents
US5585032ADec 17, 1996

Ferromagnetic fine powder for magnetic recording

ISHIHARA SANGYO KAISHA103 citations95
US5246609ASep 21, 1993

Process for preparing ferromagnetic fine particles for magnetic recording

ISHIHARA SANGYO KAISHA7 citations71
US5609789AMar 11, 1997

Cobalt-containing magnetic iron oxide and process for producing the same

ISHIHARA SANGYO KAISHA4 citations59
US4551327ANov 5, 1985

Process for producing cobalt-and ferrous iron-containing ferromagnetic iron oxides

ISHIHARA SANGYO KAISHA4 citations59

ISHIHARA MINING & CHEMICAL CO

1 patent
US4594267AJun 10, 1986

Process for producing cobalt-containing magnetic iron oxide powder

ISHIHARA MINING & CHEMICAL CO4 citations59