Toyo Ink Mfg. Co., Ltd.
331Patents
31Active
331Granted
43Portfolio score
Filing activity: Dec 26, 1973 → Mar 30, 2011 · 31 expiring within 5 years
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5814685A | Ink jet recording liquid | Emerging Cross-Sectional Technologies | 113 | Expired |
| US5928419A | Surface-treated organic pigment and process for the production thereof | Chemistry; Metallurgy | 83 | Expired |
| US4093759A | Glass container coated with polyurethane | Emerging Cross-Sectional Technologies | 80 | Expired |
| US5756356A | Method of indicating time or temperature-time accumulated value as color change, and materials therefor | Physics | 70 | Expired |
| US5759444A | Light-emitting material for organic electroluminescence device, and organic electroluminescence device for which the light-emitting material is adapted | Emerging Cross-Sectional Technologies | 70 | Expired |
| US5772746A | Ink jet recording liquid | Chemistry; Metallurgy | 60 | Expired |
| US5811834A | Light-emitting material for organo-electroluminescence device and organo-electroluminescence device for which the light-emitting material is adapted | Electricity | 59 | Expired |
| US4389438A | Process for preparing laminates | Emerging Cross-Sectional Technologies | 57 | Expired |
| US6187897A | Vinyl-group-containing dendrimer and curable composition | Emerging Cross-Sectional Technologies | 56 | Expired |
| US6251531A | Light-emitting material for organic electroluminescence device, and organic electroluminescence device for which the light-emitting material is adapted | Emerging Cross-Sectional Technologies | 52 | Expired |
| US5929906A | Color correcting method and apparatus | Electricity | 44 | Expired |
| US4205685A | Thermogenic sheet-combined poultices | Human Necessities | 43 | Expired |
| US4255157A | Thermogenic compositions | Emerging Cross-Sectional Technologies | 43 | Expired |
| US5622308A | Paper container for fluid substances, and inside lid therefor | Performing Operations; Transporting | 42 | Expired |
| US4310359A | Pigment compositions | Chemistry; Metallurgy | 41 | Expired |
| US4579888A | Aqueous resin dispersion | Chemistry; Metallurgy | 40 | Expired |
| US6198843A | Method and apparatus for color gamut mapping | Electricity | 37 | Expired |
| US5226954A | Organosilicon composition | Chemistry; Metallurgy | 37 | Expired |
| US5716435A | Recording fluid for ink-jet printing and process for the production thereof | Chemistry; Metallurgy | 37 | Expired |
| US6280859A | Light-emitting material for organo-electroluminescence device and for organic electroluminescence device which the material is applied | Emerging Cross-Sectional Technologies | 35 | Expired |
| US4863825A | Low temperature electrophotographic toner composition comprising nonlinear polyester resin | Emerging Cross-Sectional Technologies | 35 | Expired |
| US5453602A | Method of reading electrical information and information carrying member for use in the method | Physics | 32 | Expired |
| US4810733A | Color concentrates | Chemistry; Metallurgy | 30 | Expired |
| US5968675A | Hole-transporting material and use thereof | Emerging Cross-Sectional Technologies | 30 | Expired |
| US4199622A | Coating compositions for use in coating can insides and a method for applying the same | Performing Operations; Transporting | 30 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.