Nobuyuki Harada
56Patents
23h-index
60Co-inventors
91Inventor score
Filing activity: Apr 29, 1988 → Oct 28, 2014
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6809158B2 | Water-absorbing agent and process for producing the same | Chemistry; Metallurgy | 144 | Expired |
| US5382610A | Water absorbent matter and method for producing it as well as water absorbent and method for producing it | Emerging Cross-Sectional Technologies | 129 | Expired |
| US5574121A | Process for preparing an absorbent resin crosslinked with a mixture of trimethylolpropane diacrylate and triacrylate | Emerging Cross-Sectional Technologies | 125 | Expired |
| US5853867A | Absorbent composite, method for production thereof, and absorbent article | Emerging Cross-Sectional Technologies | 75 | Expired |
| US5610208A | Water-absorbent agent, method for production thereof, and water-absorbent composition | Chemistry; Metallurgy | 73 | Expired |
| US6107358A | Water-absorbent resin and method for production thereof | Chemistry; Metallurgy | 72 | Expired |
| US5985944A | Water-absorbent resin, process for production thereof, and water-absorbent resin composition | Emerging Cross-Sectional Technologies | 69 | Expired |
| US5830543A | Gelling material for aqueous fluids | Emerging Cross-Sectional Technologies | 61 | Expired |
| US6254990A | Surface-crosslinking process for water-absorbent resin | Emerging Cross-Sectional Technologies | 55 | Expired |
| US6444744B1 | Hydrophilic resin, absorbent article, and acrylic acid for polymerization | Human Necessities | 52 | Expired |
| US5981070A | Water-absorbent agent powders and manufacturing method of the same | Emerging Cross-Sectional Technologies | 41 | Expired |
| US4920202A | Method for production of hydrophilic polymer from hydrated gel polymer | Chemistry; Metallurgy | 40 | Expired |
| US6410616B1 | Crosslinked polymer particle and its production process and use | Chemistry; Metallurgy | 35 | Expired |
| US5195999A | Absorbent body and absorbent article | Emerging Cross-Sectional Technologies | 35 | Expired |
| US6184433A | Pressure-resistant absorbent resin, disposable diaper using the resin, and absorbent resin, and method for production thereof | Human Necessities | 33 | Expired |
| US4959060A | Body fluid-adsorbing article | Human Necessities | 33 | Expired |
| US6372852B2 | Water-absorbing composition and production process for water-absorbing agent | Chemistry; Metallurgy | 29 | Expired |
| US5079034A | Method for manufacturing a water absorbent composite by applying an aqueous polymerizable solution to a substrate and polymerizing the coating against polymerization inner surfaces | Textiles; Paper | 29 | Expired |
| US6187872A | Water-absorbent agent and method for manufacturing the same | Chemistry; Metallurgy | 29 | Expired |
| US6576713B2 | Water-absorbent resin powder and production process therefor | Emerging Cross-Sectional Technologies | 27 | Expired |
| US5368918A | Absorbent material comprising absorbent polymeric particulate material coated with synthetic pulp | Emerging Cross-Sectional Technologies | 26 | Expired |
| US5115011A | Process for producing quality-improved water-absorbent polymers and products | Chemistry; Metallurgy | 26 | Expired |
| US7098284B2 | Water-absorbing agent and production process therefor, and water-absorbent structure | Performing Operations; Transporting | 23 | Expired |
| US6100305A | Method of production of water-absorbing resin | Performing Operations; Transporting | 23 | Expired |
| US6303228A | Thermal transfer ribbon and base film thereof | Emerging Cross-Sectional Technologies | 20 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.