A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
FERRITE PARTICLE, CARRIER CORE MATERIAL FOR ELECTROPHOTOGRAPHIC DEVELOPER, CARRIER FOR ELECTROPHOTOGRAPHIC DEVELOPER, AND ELECTROPHOTOGRAPHIC DEVELOPER
[Problem] To provide: ferrite particles that have high environment stability of charging characteristics, and good charge rise properties; a carrier core material for an electrophotographic developer; a carrier for an electrophotographic developer; and an electrophotographic developer.[Solution] The present invention is characterized by containing a crystal phase component including a perovskite crystal represented by composition formula RZrO3 (where R represents an alkaline-earth metal element), and by containing Mg in an amount of 0.45 mass% or less. In addition, the ferrite particles are used as a carrier core material for an electrophotographic developer. In addition, by using same, a carrier for an electrophotographic developer and an electrophotographic developer are obtained.
FERRITE PARTICLE, CARRIER CORE MATERIAL FOR ELECTROPHOTOGRAPHIC DEVELOPER, CARRIER FOR ELECTROPHOTOGRAPHIC DEVELOPER, AND ELECTROPHOTOGRAPHIC DEVELOPER
[Problem] To provide: ferrite particles that have high environment stability of charging characteristics, and good charge rise properties; a carrier core material for an electrophotographic developer; a carrier for an electrophotographic developer; and an electrophotographic developer.[Solution] The present invention is characterized by containing a crystal phase component including a perovskite crystal represented by composition formula RZrO3 (where R represents an alkaline-earth metal element), and by containing Mg in an amount of 0.45 mass% or less. In addition, the ferrite particles are used as a carrier core material for an electrophotographic developer. In addition, by using same, a carrier for an electrophotographic developer and an electrophotographic developer are obtained.
FERRITE PARTICLE, CARRIER CORE MATERIAL FOR ELECTROPHOTOGRAPHIC DEVELOPER, CARRIER FOR ELECTROPHOTOGRAPHIC DEVELOPER, AND ELECTROPHOTOGRAPHIC DEVELOPER
FERRITTEILCHEN, TRÄGERKERNMATERIAL FÜR EINEN ELEKTROFOTOGRAFISCHEN ENTWICKLER, TRÄGER FÜR EINEN ELEKTROFOTOGRAFISCHEN ENTWICKLER UND ELEKTROFOTOGRAFISCHER ENTWICKLER
PARTICULES DE FERRITE, MATÉRIAU DE NOYAU DE SUPPORT POUR RÉVÉLATEUR ÉLECTROPHOTOGRAPHIQUE, SUPPORT POUR RÉVÉLATEUR ÉLECTROPHOTOGRAPHIQUE ET RÉVÉLATEUR ÉLECTROPHOTOGRAPHIQUE
ISHIKAWA MAKOTO (author) / UEMURA TETSUYA (author)
2023-06-28
Patent
Electronic Resource
English
| European Patent Office | 2024
| European Patent Office | 2024
| European Patent Office | 2022
| European Patent Office | 2023
| European Patent Office | 2023