P

Inventor

SUGITA NORIO

JP22 patents
⚠️ This page may combine multiple inventors who share the name “SUGITA NORIO”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

TODA KOGYO CORP

12 patents
US5075169ADec 24, 1991

Plate-like composite ferrite particles for magnetic recording and process for producing the same

TODA KOGYO CORP24 citations92
US5604015AFeb 18, 1997

Non-magnetic undercoat layer for magnetic recording medium, magnetic recording medium and non-magnetic particles

TODA KOGYO CORP15 citations81
US6623879B2Sep 23, 2003

Soft-magnetic hexagonal ferrite composite particles, and green sheet using the same and soft-magnetic hexagonal ferrite sintered ceramics

TODA KOGYO CORP9 citations73
US5830557ANov 3, 1998

Non-magnetic undercoating layer for magnetic recording medium, magnetic recording medium and non-magnetic particles

TODA KOGYO CORP5 citations73
US5118575AJun 2, 1992

Plate-like composite ferrite fine particles for magnetic recording and a process for producing the same

TODA KOGYO CORP12 citations73
US4584242AApr 22, 1986

Plate-like barium ferrite particles for magnetic recording and process for producing the same

TODA KOGYO CORP16 citations73
US4851292AJul 25, 1989

Plate-like barium ferrite particles suitable for use in magnetic recording and process for producing the same

TODA KOGYO CORP8 citations72
US4806429AFeb 21, 1989

Plate-like barium ferrite particles suitable for use in magnetic recording and process for producing the same

TODA KOGYO CORP5 citations72
US5484545AJan 16, 1996

Magnetic particles for magnetic recording medium and process for producing the same

TODA KOGYO CORP2 citations62
US5079092AJan 7, 1992

Plate-like composite ferrite fine particles suitable for use in magnetic recording and process for producing the same

TODA KOGYO CORP4 citations62
US5543069AAug 6, 1996

Magnetic particles for magnetic recording medium and process for producing the same

TODA KOGYO CORP1 citations52
US5882795AMar 16, 1999

Non-magnetic coated particles having a defined parameter α of not less than 0.5

TODA KOGYO CORP0 citations51

CANON KK

8 patents

OKANO YOJI

1 patent

RENESAS ELECTRONICS CORP

1 patent