Tomonari Watanabe
29Patents
14h-index
49Co-inventors
81Inventor score
Filing activity: Dec 7, 1983 → Oct 14, 2014
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US7276112B2 | Aqueous ink, ink-jet recording method, ink cartridge, recording unit, ink-jet recording apparatus and image forming method | Chemistry; Metallurgy | 58 | Expired |
| US4948871A | Method for producing a crystallized aromatic polycarbonate, and a crystallized aromatic polycarbonate obtained thereby | Chemistry; Metallurgy | 56 | Expired |
| US7005461B2 | Aqueous ink, ink jet recording method, ink cartridge, recording unit, and ink jet recording apparatus | Chemistry; Metallurgy | 50 | Expired |
| US6706105B2 | Aqueous ink, ink-jet recording method, recording unit, ink cartridge, ink set, and ink-jet recording apparatus | Chemistry; Metallurgy | 47 | Expired |
| US7160376B2 | Aqueous ink, and ink-jet recording method, ink-jet recording apparatus, and image forming method using the same | Chemistry; Metallurgy | 39 | Expired |
| US6521034B1 | Ink, ink set, ink cartridge, recording unit, color-image recording apparatus, image recording process, color-image forming process, and method for improving density of ink-jet recorded image | Performing Operations; Transporting | 35 | Expired |
| US6547381B2 | Ink, image recording process, ink cartridge, recording unit, ink set, crust-preventing method and image forming apparatus | Performing Operations; Transporting | 32 | Expired |
| US7371274B2 | Water-based ink, ink jet recording method, ink cartridge, recording unit, ink jet recording apparatus, and image forming method. | Performing Operations; Transporting | 24 | Expired |
| US7267717B2 | Aqueous ink, ink jet recording method, ink cartridge, recording unit, ink jet recording apparatus and image forming method | Chemistry; Metallurgy | 24 | Expired |
| US7682433B2 | Ink set, ink jet recording method, ink cartridge, recording unit, and ink jet recording apparatus | Chemistry; Metallurgy | 22 | Active |
| US8007097B2 | Water-based ink, ink jet recording method, ink cartridge, recording unit, ink jet recording apparatus, and image forming method | Performing Operations; Transporting | 20 | Active |
| US7699924B2 | Aqueous ink, ink jet recording method, ink cartridge, recording unit and ink jet recording apparatus | Chemistry; Metallurgy | 20 | Active |
| US7605192B2 | Aqueous ink, ink jet recording method, ink cartridge, recording unit, and ink jet recording apparatus | Chemistry; Metallurgy | 20 | Active |
| US5436399A | Thermoplastic polyurethane derived from polytetramethylene carbonate diol | Emerging Cross-Sectional Technologies | 14 | Expired |
| US5414144A | Propylene glycol cyclohexyl ether derivatives, method of producing same and uses thereof | Chemistry; Metallurgy | 11 | Expired |
| US7753515B2 | Ink set, ink jet recording method, ink cartridge, recording unit, ink-jet recording apparatus, and image formation method | Chemistry; Metallurgy | 11 | Expired |
| US6100339A | Curable resin and resin composition comprising the same | Chemistry; Metallurgy | 10 | Expired |
| US7446218B2 | Process for producing carbonic ester | Chemistry; Metallurgy | 10 | Expired |
| US8672465B2 | Water-based ink, ink jet recording method, ink cartridge, recording unit, ink jet apparatus, and image forming method | Performing Operations; Transporting | 8 | Active |
| US8899736B2 | Water-based ink, ink jet recording method, ink cartridge, recording unit, ink jet recording apparatus, and image forming method | Performing Operations; Transporting | 7 | Active |
| US4552974A | Process for producing diphenylmethane dicarbamates | Chemistry; Metallurgy | 6 | Expired |
| US8491715B2 | Ink, ink cartridge and ink jet recording method | Chemistry; Metallurgy | 5 | Active |
| US4547322A | Method for manufacture of diphenylmethane diisocyanates | Chemistry; Metallurgy | 4 | Expired |
| US4587056A | Process for producing an aliphatic isocyanate | Chemistry; Metallurgy | 4 | Expired |
| US7652122B2 | Method for producing an aromatic carbonate | Chemistry; Metallurgy | 3 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.