COBALT FERRITE PARTICLE PRODUCTION METHOD AND COBALT FERRITE PARTICLES PRODUCED THEREBY

WIPO Patent Application WO/2020/241065

A1

Provided are cobalt ferrite particles having particle sizes that are less variable and that average in the micrometer order. By performing an oxidation reaction in the presence of a complexing agent when a high-temperature high-pressure treatment is to be performed on a cobalt ferrite precursor, cobalt ferrite magnetic particles, which are the objective, are obtained.

ARAI TSUBASA (JP)
MURATANI NAOKI (JP)
KISHIMOTO AKIRA (JP)
TAKAHASHI HIDEYUKI (JP)

PCT/JP2020/015762

December 03, 2020

April 08, 2020

Click for automatic bibliography generation  

NITTETSU MINING CO LTD (JP)

C01G51/00; C01G49/00; G03G9/083; H01F1/11; H01F1/34; H01F1/44

WO1996028269A1

1996-09-19

JPH0633116A	1994-02-08
CN107032412A	2017-08-11
CN102730770A	2012-10-17
JP4138344B2	2008-08-27
JPH0324412B2	1991-04-03
JPS6047722A	1985-03-15
JPS554399B2	1980-01-30
JPH05275224A	1993-10-22
JP4113045B2	2008-07-02
JPH11131102A	1999-05-18

HIGH-YIELD SYNTHESIS AND CHARACTERIZATION OF MONODISPERSE SUB-MICROSIZED COFE2O4 OCTAHEDRA, JOURNAL OF SOLID STATE CHEMISTRY, vol. 180, no. 2, 2 February 2007 (2007-02-02), pages 461 - 466, XP005862204
NGUYEN VIET LONG ET AL: "Related magnetic properties of CoFe 2 O 4 cobalt ferrite particles synthesised by the polyol method with NaBH 4 and heat treatment: new micro and nanoscale structures", RSC ADVANCES, vol. 5, no. 70, 2015, pages 56560 - 56569, XP055764029
See also references of EP 3978443A4

MOEGI PATENT OFFICE (JP)

View/Download PDF      PDF Help

Previous Patent: MEDIUM PROCESSING DEVICE AND MEDIUM TRANSACTION DEVICE

Next Patent: WIRELESS SYSTEM, METHOD FOR CONTROLLING WIRELESS SYSTEM, AND NON-TRANSITORY COMPUTER-READABLE MEDIUM...