Assignee
NAGAYAMA MASASHI
JP·8 granted patents·7 pending applications·10 citations·filing 2007–2025
Technology mixG03G15
Top patents by PatentIndex Score
15 records- 0177US9128398B2Toner for forming electrophotographic image, method for manufacturing toner for forming electrophotographic image, image forming method, and process cartridgeNAGAYAMA MASASHI·Filed 2012·Granted Sep 8, 2015·2 cites·20 claims
- 0277US8086143B2Image forming apparatus for use with carrier including a core and cover layerNAGAYAMA MASASHI·Filed 2008·Granted Dec 27, 2011·5 cites·20 claims
- 0374US2025291267A1Electrophotographic developer, electrophotographic image forming method, electrophotographic image forming apparatus, and process cartridgeNAGAYAMA MASASHI·Filed 2025·Application pending·0 cites
- 0468US9005862B2Toner, image forming method, and process cartridgeNAGAYAMA MASASHI·Filed 2013·Granted Apr 14, 2015·1 cites·17 claims
- 0567US8524436B2Developing device, image forming method and apparatus, and process cartridgeNAGAYAMA MASASHI·Filed 2011·Granted Sep 3, 2013·1 cites·14 claims
- 0665US12436479B2Carrier for forming electrophotographic image, developer for forming electrophotographic image, electrophotographic image forming method, electrophotographic image forming apparatus, and process cartridgeNAGAYAMA MASASHI·Filed 2021·Granted Oct 7, 2025·0 cites·16 claims
- 0762US12306582B2Carrier for forming electrophotographic image, developer for forming electrophotographic image, electrophotographic image forming method, electrophotographic image forming apparatus, and process cartridgeNAGAYAMA MASASHI·Filed 2020·Granted May 20, 2025·0 cites·15 claims
- 0855US8728698B2Carrier, developer, image forming method and process cartridgeNAGAYAMA MASASHI·Filed 2007·Granted May 20, 2014·1 cites·26 claims
- 0951US2024295834A1Carrier, developing agent, image forming method, image forming apparatus, and process cartridgeNAGAYAMA MASASHI·Filed 2024·Application pending·0 cites
- 1047US2023305439A1Carrier for electrophotographic image formation, developer for electrophotographic image formation, electrophotographic image forming method, electrophotographic image forming apparatus, and process cartridgeNAGAYAMA MASASHI·Filed 2023·Application pending·0 cites
- 1144US10025214B2Carrier, developing agent, image forming apparatus, image forming method, replenishment toner, and process cartridgeNAGAYAMA MASASHI·Filed 2016·Granted Jul 17, 2018·0 cites·10 claims
- 1240US2008152393A1Carrier for electrophotographic developer, image forming method, and process cartridgeNAGAYAMA MASASHI·Filed 2007·Application pending·0 cites
- 1340US2008213684A1Carrier for electrophotographic developer, developer, image forming method, image forming apparatus, and process cartridgeNAGAYAMA MASASHI·Filed 2008·Application pending·0 cites
- 1439US2012251168A1Electrophotographic image forming method and process cartridgeNAGAYAMA MASASHI·Filed 2012·Application pending·0 cites
- 1537US2012009514A1Image forming method, two-component developer, image forming apparatus and process cartridgeNAGAYAMA MASASHI·Filed 2011·Application pending·0 cites
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