- Patent Title: Carrier core material for electrophotographic developer and method for producing the same, and carrier for electrophotographic developer and developer containing said carrier core material
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Application No.: US16751031Application Date: 2020-01-23
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Publication No.: US11112716B2Publication Date: 2021-09-07
- Inventor: Hiroki Sawamoto , Atsushi Nil , Yuji Ito , Hajime Akiba , Shinya Hanyu
- Applicant: POWDERTECH CO., LTD.
- Applicant Address: JP Kashiwa
- Assignee: POWDERTECH CO., LTD.
- Current Assignee: POWDERTECH CO., LTD.
- Current Assignee Address: JP Kashiwa
- Agency: Procopio, Cory, Hargreaves & Savitch LLP
- Priority: JPJP2019-011440 20190125
- Main IPC: G03G9/00
- IPC: G03G9/00 ; G03G9/107 ; G03G9/08
Abstract:
The present invention relates to a carrier core material for electrophotographic developer, having a ferrite composition and having a supernatant transmittance of 85.0% or more, a method for producing the carrier core material, a carrier for electrophotographic developer, containing the carrier core material, and a developer containing the carrier.
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