公开(公告)号：US20250011580A1

公开(公告)日：2025-01-09

申请号：US18292858

申请日：2022-07-26

Applicant: TODA KOGYO CORP.

Inventor： Takamoto KAWAGUCHI ,  Kousaku TAMARI ,  Kenichi NAKATA ,  Shinji UEMOTO ,  Shiori OSHIMO ,  Yoshiki KAWAI ,  Yuji MISHIMA ,  Masahiro KANEMITSU

IPC: C08K7/18

Abstract: A spherical strontium titanate fine particulate powder has a primary particle having an average primary particle size equal to or less than 50 nm. The spherical strontium titanate fine particulate powder has a ratio between the average primary particle size and a BET-converted particle size ranging from 0.85 to 1.25. The BET-converted particle size is derived from a BET specific surface area by using the expression 6000/(BET×5.13).