Inventor
YAGUCHI SHIGENORI
JP38 patents
⚠️ This page may combine multiple inventors who share the name “YAGUCHI SHIGENORI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
RICOH PRINTING SYS LTD
6 patentsUS7022448B2Apr 4, 2006
Electrophotographic toner and image-forming system
RICOH PRINTING SYS LTD8 citations73
US7459252B2Dec 2, 2008
Electrophotographic toner
RICOH PRINTING SYS LTD4 citations62
US7327974B2Feb 5, 2008
Electrophotographic toner and image-forming system
RICOH PRINTING SYS LTD3 citations62
US7144667B2Dec 5, 2006
Electrostatic charge image developing toner, and developer, image forming apparatus and image forming method using the same toner
RICOH PRINTING SYS LTD2 citations62
US7570904B2Aug 4, 2009
Image forming apparatus
RICOH PRINTING SYS LTD3 citations61
US7435519B2Oct 14, 2008
Electrophotographic toner and image forming apparatus
RICOH PRINTING SYS LTD0 citations40
RICOH CO LTD
6 patentsUS11926931B2Mar 12, 2024
Resin powder for solid freeform fabrication, device for solid freeform fabrication object, and method of manufacturing solid freeform fabrication object
RICOH CO LTD2 citations72
US11491713B2Nov 8, 2022
Resin powder for solid freeform fabrication, device for solid freeform fabrication object, and method of manufacturing solid freeform fabrication object
RICOH CO LTD3 citations72
US12208571B2Jan 28, 2025
Resin powder for solid freeform fabrication, device for solid freeform fabrication object, and method of manufacturing solid freeform fabrication object
RICOH CO LTD0 citations62
US11242436B2Feb 8, 2022
Resin particles, production method thereof, and application thereof for production of three-dimensional object
RICOH CO LTD0 citations62
US9261817B2Feb 16, 2016
Replenishing developer housing container and image forming apparatus
RICOH CO LTD2 citations62
US11241825B2Feb 8, 2022
Resin powder, device for solid freeform fabrication object, and method of manufacturing solid freeform fabrication object
RICOH CO LTD0 citations59
KISHIDA HIROYUKI
4 patentsUS9229347B2Jan 5, 2016
Carrier for two-component developer, two-component developer using the carrier, and process cartridge and image forming method and apparatus using the two component developer
KISHIDA HIROYUKI2 citations62
US9519234B2Dec 13, 2016
Carrier, two-component developer, supplemental developer, image forming method, process cartridge and image forming apparatus
KISHIDA HIROYUKI0 citations51
US8512928B2Aug 20, 2013
Carrier for developing electrostatic latent image, and two-component developer, supplemental developer, image forming apparatus, process cartridge, and image forming method using the carrier
KISHIDA HIROYUKI1 citations51
US8787804B2Jul 22, 2014
Developing device including a developer container with toner particles and magnetic carrier particles (Rz=0.5−3.0 gm) and a developer bearing member (Rz=10−30 gm), and an image forming apparatus and process cartridge containing the same
KISHIDA HIROYUKI0 citations41
YAGUCHI SHIGENORI
3 patentsUS8916325B2Dec 23, 2014
Carrier for developing electrostatic latent image, tow-component developer and image forming method
YAGUCHI SHIGENORI3 citations61
US8663892B2Mar 4, 2014
Latent electrostatic image developing carrier, process cartridge and image forming apparatus
YAGUCHI SHIGENORI3 citations61
US9298119B2Mar 29, 2016
Carrier for two-component developer, two-component developer using the carrier, and image forming method and process cartridge using the two-component developer
YAGUCHI SHIGENORI2 citations60
SAKATA KOICHI
3 patentsUS8652735B2Feb 18, 2014
Carrier, developer, method of manufacturing carrier, developer container, image forming method, process cartridge, image forming apparatus, and supplemental developer
SAKATA KOICHI1 citations51
US8637218B2Jan 28, 2014
Carrier for developing electrostatic latent image and developer
SAKATA KOICHI1 citations51
US8903270B2Dec 2, 2014
Developing device, image forming apparatus, and process cartridge
SAKATA KOICHI0 citations41
HITACHI PRINTING SOLUTIONS LTD
2 patentsSAITO AKIRA
2 patentsUS11066758B2Jul 20, 2021
Resin powder having pillar shape and specific circularity for solid freeform fabrication, device for solid freeform fabrication object, and method of manufacturing solid freeform fabrication object
SAITO AKIRA4 citations72
US11052649B2Jul 6, 2021
Resin powder for solid freeform fabrication, device for fabricating solid freeform fabrication object, and resin powder
SAITO AKIRA1 citations62
YAMAGUCHI KIMITOSHI
2 patentsUS8652738B2Feb 18, 2014
Contact developing method, image forming apparatus, and process cartridge
YAMAGUCHI KIMITOSHI2 citations61
US8778587B2Jul 15, 2014
Carrier for electrostatic latent image developer, electrostatic latent image developer formed of carrier and toner, and process cartridge using the developer
YAMAGUCHI KIMITOSHI0 citations51