Assignee

O K TRADING CO LTD

JP·2 granted patents·41 citations·filing 1989–1989

Technology mixA61L1 C04B1 C09K1 Y10T1

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2 records

0178US4886972AFar infrared ray emitting body of a core material coated with an ultrafine powderO K TRADING CO LTD·Filed 1989·Granted Dec 12, 1989·35 cites·3 claims
0235US5098700AFar infrared ray emitting, odor-absorbing materialO K TRADING CO LTD·Filed 1989·Granted Mar 24, 1992·6 cites·2 claims

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