Inventor · Tokushima, JP

Shoji Hosokawa

86Patents
5h-index
50Co-inventors
71Inventor score

Filing activity: Dec 28, 2005 → Jun 26, 2023

Most-cited inventions

PatentTitleAreaCited byStatus
US8030839B2 Phosphor activated with europium, light emitting device using the same and method of manufacturing the phosphor Emerging Cross-Sectional Technologies 19 Active
US7854859B2 Nitride phosphor, method for producing this nitride phosphor, and light emitting device that uses this nitride phosphor Electricity 10 Active
US10608149B2 Wavelength converting member and light emitting device Electricity 8 Active
US7963817B2 Phosphor-containing molded member, method of manufacturing the same, and light emitting device having the same Electricity 6 Active
US10026876B2 Light emitting device Electricity 6 Active
US9735323B2 Light emitting device having a triple phosphor fluorescent member Electricity 5 Active
US8040041B2 Light emitting apparatus Emerging Cross-Sectional Technologies 4 Active
US9708531B2 Fluorescent substance, method of manufacturing the fluorescent substance, and light emitting device using the fluorescent substance Electricity 3 Active
US10032965B2 Phosphor, light-emitting apparatus including the same, and phosphor production method Electricity 3 Active
US10910526B2 Light emitting device Electricity 2 Active
US10385267B2 Method for producing β-sialon fluorescent material Chemistry; Metallurgy 2 Active
US7967476B2 Light emitting device including protective glass film Electricity 2 Active
US10894917B2 Method of producing beta-sialon fluorescent material Chemistry; Metallurgy 2 Active
US9653658B2 Red phosphor and light emitting device including the same Electricity 2 Active
US10243113B2 Light emitting device Electricity 1 Active
US10093855B2 Method for producing beta-sialon fluorescent material Chemistry; Metallurgy 1 Active
US10927298B2 Nitride fluorescent material, method for producing the same, and light emitting device Electricity 1 Active
US10604701B2 Method of producing nitride fluorescent material, and nitride fluorescent material Chemistry; Metallurgy 1 Active
US9705049B2 Phosphor, light-emitting apparatus including the same, and phosphor production method Emerging Cross-Sectional Technologies 1 Active
US10829689B2 Method for producing nitride fluorescent material, nitride fluorescent material and light emitting device Electricity 1 Active
US10662375B2 Nitride fluorescent material, method for producing the same, and light emitting device Electricity 1 Active
US10190044B2 Method for producing β-sialon fluorescent material Chemistry; Metallurgy 1 Active
US10479935B2 Fluorescent material, method of producing the same, and light emitting device using the same Electricity 1 Active
US10723945B2 Method of producing aluminate fluorescent material, aluminate fluorescent material, and light emitting device Electricity 1 Active
US10270015B1 Light-emitting device Electricity 1 Active

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