Assignee
NAGAYAMA MASASHI
JP8 patents
Top patents by PatentIndex Score
US9128398B2Sep 8, 2015
Toner for forming electrophotographic image, method for manufacturing toner for forming electrophotographic image, image forming method, and process cartridge
NAGAYAMA MASASHI2 citations62
US8086143B2Dec 27, 2011
Image forming apparatus for use with carrier including a core and cover layer
NAGAYAMA MASASHI5 citations62
US12306582B2May 20, 2025
Carrier for forming electrophotographic image, developer for forming electrophotographic image, electrophotographic image forming method, electrophotographic image forming apparatus, and process cartridge
NAGAYAMA MASASHI0 citations61
US12436479B2Oct 7, 2025
Carrier for forming electrophotographic image, developer for forming electrophotographic image, electrophotographic image forming method, electrophotographic image forming apparatus, and process cartridge
NAGAYAMA MASASHI0 citations60
US9005862B2Apr 14, 2015
Toner, image forming method, and process cartridge
NAGAYAMA MASASHI1 citations51
US8728698B2May 20, 2014
Carrier, developer, image forming method and process cartridge
NAGAYAMA MASASHI1 citations51
US8524436B2Sep 3, 2013
Developing device, image forming method and apparatus, and process cartridge
NAGAYAMA MASASHI1 citations51
US10025214B2Jul 17, 2018
Carrier, developing agent, image forming apparatus, image forming method, replenishment toner, and process cartridge
NAGAYAMA MASASHI0 citations38