Katsumi Murofushi
44Patents
8h-index
77Co-inventors
78Inventor score
Filing activity: Oct 8, 1986 → Dec 17, 2020
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5166041A | Near infrared ray-decolorizable recording material | Emerging Cross-Sectional Technologies | 84 | Expired |
| US5362592A | Decolorizable toner | Physics | 66 | Expired |
| US5607803A | Decolorizable toner and a decolorizable toner production process | Physics | 42 | Expired |
| US5572311A | Apparatus for decolorizing toner images and an image forming apparatus | Emerging Cross-Sectional Technologies | 33 | Expired |
| US5814427A | Decolorizable toner and process for preparing the same | Physics | 17 | Expired |
| US5846682A | Light decolorizable recording material, ink and toner | Physics | 13 | Expired |
| US11011200B2 | Fluorine-containing ether compound, lubricant for magnetic recording medium, and magnetic recording medium | Chemistry; Metallurgy | 9 | Active |
| US5405726A | Method and apparatus for decolorization, and image forming apparatus | Emerging Cross-Sectional Technologies | 8 | Expired |
| US11261394B2 | Fluorine-containing ether compound, lubricant for magnetic recording media, and magnetic recording medium | Chemistry; Metallurgy | 7 | Active |
| US11279664B2 | Fluorine-containing ether compound, lubricant for magnetic recording medium, and magnetic recording medium | Chemistry; Metallurgy | 7 | Active |
| US10803898B2 | Fluorine-containing ether compound, lubricant for magnetic recording medium, and magnetic recording medium | Chemistry; Metallurgy | 7 | Active |
| US7157788B2 | Metal oxide dispersion for dye-sensitized solar cells, photoactive electrode and dye-sensitized solar cell | Emerging Cross-Sectional Technologies | 7 | Expired |
| US7579066B2 | Ethylenically unsaturated group-containing isocyanate compound and process for producing the same, and reactive monomer, reactive (meth) acrylate polymer and its use | Emerging Cross-Sectional Technologies | 7 | Active |
| US11427779B2 | Fluorine-containing ether compound, lubricant for magnetic recording medium, and magnetic recording medium | Chemistry; Metallurgy | 7 | Active |
| US5449583A | Method of making decolorizable toner | Physics | 7 | Expired |
| US11639330B2 | Fluorine-containing ether compound, lubricant for magnetic recording medium, and magnetic recording medium | Chemistry; Metallurgy | 6 | Active |
| US11220649B2 | Fluorine-containing ether compound, lubricant for magnetic recording medium, and magnetic recording medium | Chemistry; Metallurgy | 6 | Active |
| US8399569B2 | Reactive urethane compound having ether bond, curable composition, and cured material | Physics | 6 | Active |
| US7544536B2 | Metal oxide dispersion for dye-sensitized solar cells, photoactive electrode and dye-sensitized solar cell | Emerging Cross-Sectional Technologies | 4 | Active |
| US8242217B2 | Epoxy resin curing agent, process for preparing the same, and epoxy resin composition | Chemistry; Metallurgy | 4 | Active |
| US8349934B2 | Hardening composition and hardened product thereof | Emerging Cross-Sectional Technologies | 4 | Active |
| US11332686B2 | Fluorine-containing ether compound, lubricant for magnetic recording medium and magnetic recording medium | Chemistry; Metallurgy | 3 | Active |
| US8283095B2 | Thiourethane compound and photosensitive resin composition | Physics | 3 | Active |
| US11292979B2 | Fluorine-containing ether compound, lubricant for magnetic recording medium and magnetic recording medium | Chemistry; Metallurgy | 2 | Active |
| US11820742B2 | Fluorine-containing ether compound, lubricant for magnetic recording medium, and magnetic recording medium | Chemistry; Metallurgy | 2 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.