Inventor · Soma, JP

Noriyoshi Umeda

23Patents

12h-index

55Co-inventors

80Inventor score

Filing activity: Sep 8, 2004 → Oct 15, 2020

Most-cited inventions

Patent	Title	Area	Cited by	Status
US7611813B2	Toner and image forming method	Physics	58	Active
US9261806B2	Toner	Physics	57	Active
US9285697B2	Toner	Physics	54	Active
US7767370B2	Two-component developer, replenishing developer, and image-forming method	Physics	40	Active
US7135263B2	Toner	Physics	38	Expired
US7629100B2	Toner	Physics	36	Active
US8114562B2	Two-component developer, replenishing developer, and image-forming method	Physics	35	Active
US7906262B2	Two-component developer, replenishing developer, and image-forming method	Physics	29	Active
US10747133B2	Image-forming apparatus	Physics	19	Active
US10678155B2	Toner comprising a surface layer of an organosilicon polymer protrusion	Physics	19	Active
US9785068B2	Toner	Physics	18	Active
US10635011B2	Toner	Physics	13	Active
US10976678B2	Toner	Physics	12	Active
US10845721B2	Toner	Physics	11	Active
US11061342B2	Electrophotographic apparatus, process cartridge and cartridge set	Physics	8	Active
US11320756B2	Electrophotographic apparatus, process cartridge, and cartridge set	Physics	5	Active
US11112712B2	Toner	Physics	4	Active
US11294296B2	Toner	Physics	1	Active
US7177581B2	Image forming apparatus	Physics	1	Expired
US7280785B2	Image forming apparatus	Physics	1	Active
US11448982B2	Electrophotographic apparatus, process cartridge, and cartridge set	Physics	0	Active
US11022933B2	Process cartridge, image forming apparatus and cleaning apparatus	Physics	0	Active
US9541852B2	Toner and two-component developer	Physics	0	Active

Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.