POLYMER PARTICLE CONTAINING MAGNETIC MATERIAL, MEDIUM FOR SENSORS, AND SENSOR DEVICE

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United States of America Patent

APP PUB NO 20240145134A1
SERIAL NO

18175139

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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A polymer particle containing magnetic material includes a core and a polymer layer. The core includes magnetic fine particles. The polymer layer is located outside the core and surrounds the core. A shape ratio (Ric) is defined in each of the magnetic fine particles by dividing a diameter (Di) of an inscribed circle of the magnetic fine particle by a diameter (Do) of a circumscribed circle of the magnetic fine particle. The shape ratio (Ric) of the magnetic fine particle is 0.50 or more and 0.94 or less. The diameter (Di) of the magnetic fine particle is 5 nm or more. The diameter (Di) and the shape ratio (Ric) of the magnetic fine particle satisfy a relation formula of Di≤9.28×e{circumflex over ( )}(1.17×Ric).

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Patent Owner(s)

Patent OwnerAddress
TDK CORPORATIONTOKYO 103-6128

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
GUSHI, Toshiki Tokyo, JP 1 0
HASEGAWA, Akito Tokyo, JP 46 70
KANADA, Isao Tokyo, JP 29 58
YOSHIDOME, Kazuhiro Tokyo, JP 92 105

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