Hiroyuki Takuhara
15Patents
9h-index
25Co-inventors
64Inventor score
Filing activity: Sep 27, 2000 → May 5, 2008
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6706104B2 | Ink set, ink jet recording method, recording unit, ink cartridge, ink jet recording apparatus, bleed-alleviating method, and method for improving fixability of black image | Chemistry; Metallurgy | 38 | Expired |
| US7244299B2 | Ink jet recording ink, ink jet recording method, ink cartridge, and ink jet recording apparatus | Chemistry; Metallurgy | 35 | Expired |
| US7208033B2 | Ink, ink jet recording method, ink cartridge, and ink jet recording apparatus | Chemistry; Metallurgy | 33 | Expired |
| US6780901B1 | Ink, ink-jet recording method, ink-jet recording apparatus, and coloring material | Chemistry; Metallurgy | 25 | Expired |
| US7445666B2 | Ink jet ink, ink jet recording method, ink cartridge, ink set and image forming method | Chemistry; Metallurgy | 14 | Active |
| US8016932B2 | Aqueous ink, ink set, image forming method and image forming apparatus | Chemistry; Metallurgy | 14 | Active |
| US7025817B2 | Ink, recording method, recording unit, ink cartridge, and recording apparatus | Chemistry; Metallurgy | 14 | Expired |
| US7637603B2 | Pigment ink, ink set, ink jet recording method, ink cartridge, recording unit, ink jet recording apparatus, and image forming method | Chemistry; Metallurgy | 10 | Active |
| US7229166B2 | Image-forming method, image-forming apparatus, ink set, and ink | Electricity | 10 | Expired |
| US7520927B2 | Liquid ink for ink jet and ink jet recording method using the ink | Chemistry; Metallurgy | 6 | Active |
| US7436545B2 | Method of forming image, image forming apparatus, and program for carrying out the method | Performing Operations; Transporting | 3 | Active |
| US7510604B2 | Cyan ink for ink jet and ink jet recording method | Chemistry; Metallurgy | 2 | Active |
| US7758156B2 | Image forming method, image forming apparatus, and ink jet recording apparatus | Performing Operations; Transporting | 2 | Active |
| US8163817B2 | Aqueous ink, ink set, image forming method and image forming apparatus | Performing Operations; Transporting | 2 | Active |
| US7604335B2 | Ink cartridge | Chemistry; Metallurgy | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.