公开(公告)号：US11497695B2

公开(公告)日：2022-11-15

申请号：US15755493

申请日：2016-08-25

Applicant: SUMITOMO OSAKA CEMENT CO., LTD.

Inventor： Gaku Fujihashi ,  Shingo Hosoda ,  Kenichiro Nishida ,  Syunsuke Suma

IPC: A61K8/27 ,  A61Q17/04 ,  A61K8/04 ,  C01G9/02

Abstract: Zinc oxide powder of the present invention contains zinc oxide particles, in which primary particles of the zinc oxide particles have a minor axis of 35 nm or more and 350 nm or less and have a Heywood diameter of 35 nm or more and 400 nm or less, and a coefficient of variation of a number distribution of the Heywood diameters of the primary particles of the zinc oxide powder is 50% or less.

公开(公告)号：US11364185B2

公开(公告)日：2022-06-21

申请号：US16309388

申请日：2016-12-27

Applicant: SUMITOMO OSAKA CEMENT CO., LTD.

Inventor： Syunsuke Suma ,  Shingo Hosoda ,  Kenichiro Nishida

IPC: A61K8/27 ,  A61K8/02 ,  A61K8/04 ,  A61K8/25 ,  A61K8/26 ,  A61K8/44 ,  A61K8/58 ,  A61K8/81 ,  A61K8/92 ,  A61Q1/02 ,  A61Q1/12 ,  A61Q17/04

Abstract: In a zinc oxide powder of the present invention, a content of a water-soluble substance is 0.30% by mass or less, and a mass ratio between an alkali metal and an alkaline earth metal which are included in the water-soluble substance is in a range of 1:2 to 10:1.