The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 10, 2024
Filed:
Jan. 27, 2022
Fujifilm Business Innovation Corp., Tokyo, JP;
Koji Sasaki, Kanagawa, JP;
Sakae Takeuchi, Kanagawa, JP;
Yuka Zenitani, Kanagawa, JP;
Yoshifumi Eri, Kanagawa, JP;
Mai Mochida, Kanagawa, JP;
FUJIFILM Business Innovation Corp., Tokyo, JP;
Abstract
Silica particles have silica base particles, a structure that covers at least a part of a surface of the silica base particles and is configured with a reaction product of a trifunctional silane coupling agent, and a nitrogen element-containing compound, in which a content of the nitrogen element-containing compound with respect to the silica particles is 0.005% by mass or more and 0.50% by mass or less in terms of N atoms, and the silica particles have a degree of hydrophobicity of 10% or more and 60% or less and a volume resistivity of 1×10Ω·cm or more and 1×10Ω·cm or less.