Invention Publication
- Patent Title: SILICA PARTICLE, TONER FOR DEVELOPING ELECTROSTATIC CHARGE IMAGE, ELECTROSTATIC CHARGE IMAGE DEVELOPER, TONER CARTRIDGE, PROCESS CARTRIDGE, IMAGE FORMING APPARATUS, AND IMAGE FORMING METHOD
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Application No.: US18469027Application Date: 2023-09-18
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Publication No.: US20240118645A1Publication Date: 2024-04-11
- Inventor: Mai MOCHIDA , Sakae TAKEUCHI , Yuka ZENITANI , Hajime SUGAHARA , Mieko SEKI , Kota NOHARA
- Applicant: FUJIFILM Business Innovation Corp.
- Applicant Address: JP Tokyo
- Assignee: FUJIFILM Business Innovation Corp.
- Current Assignee: FUJIFILM Business Innovation Corp.
- Current Assignee Address: JP Tokyo
- Priority: JP 22151977 2022.09.22 JP 23132177 2023.08.14
- Main IPC: G03G9/097
- IPC: G03G9/097 ; G03G15/02 ; G03G15/08 ; G03G15/16 ; G03G15/20

Abstract:
A silica particle is provided in which a pore size distribution curve obtained by nitrogen gas adsorption of the silica particle after baking at 350° C. has at least one peak at a pore diameter of 2 nm or less and at least one peak at a pore diameter of more than 2 nm and 50 nm or less, and D/B is 0.50 or greater and 2.50 or less, where D and B are the volumes of pores having a diameter of 2 nm or less and a diameter of 2 nm or more and 25 nm or less, respectively, determined from the pore size distribution curve obtained by nitrogen gas adsorption of the silica particle after baking at 350° C.
Public/Granted literature
- US1700641A Bag holder Public/Granted day:1929-01-29
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