Atsushi Takehara
28Patents
10h-index
50Co-inventors
74Inventor score
Filing activity: Dec 24, 1998 → Nov 19, 2013
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6249304A | Image forming apparatus and image forming method for forming color images by gray-level image forming technique | Electricity | 91 | Expired |
| US6295438A | Method and apparatus for forming an image capable of supplying a proper amount of a lubricant to each image forming section | Physics | 44 | Expired |
| US7003238B2 | Intermediate image transfer device for a color image forming apparatus | Physics | 39 | Expired |
| US6334039A | Method and apparatus for image forming apparatus capable of accurately detecting toner image patterns | Physics | 32 | Expired |
| US6366754B1 | Color image forming apparatus with toner recycling | Physics | 28 | Expired |
| US7203433B2 | Apparatus for detecting amount of toner deposit and controlling density of image, method of forming misalignment correction pattern, and apparatus for detecting and correcting misalignment of image | Physics | 27 | Expired |
| US7280792B2 | Method for evaluating changes in resistance of electric resistance member and image forming apparatus using same | Physics | 22 | Expired |
| US6292206A | Image forming apparatus and method of producing light quantity correction data | Physics | 21 | Expired |
| US7610004B2 | Apparatus for detecting amount of toner deposit and controlling density of image, method of forming misalignment correction pattern, and apparatus for detecting and correcting misalignment of image | Physics | 17 | Active |
| US7174124B2 | Tandem color image forming apparatus with an image transfer belt and backup roller | Physics | 14 | Expired |
| US7428400B2 | Primary transfer unit of image forming apparatus | Physics | 10 | Active |
| US8571426B2 | Toner supply method, development device, process unit, and image forming apparatus | Physics | 6 | Active |
| US6782227B2 | Transfer device for setting a suitable recording medium adsorbing bias, and an image-forming apparatus including the transfer device | Physics | 6 | Expired |
| US7440720B2 | Image forming apparatus and image transferring unit for the same | Physics | 5 | Active |
| US7139497B2 | Color image forming apparatus having a variable controlled speed ratio | Physics | 5 | Expired |
| US7734235B2 | Image forming apparatus including a metallic driving roller | Physics | 4 | Active |
| US7801471B2 | Transfer unit and image forming apparatus | Physics | 3 | Active |
| US7636539B2 | Tandem intermediate-transfer type image forming apparatus | Physics | 3 | Active |
| US7499669B2 | Transfer unit and image forming apparatus | Physics | 3 | Active |
| US8594519B2 | Image forming apparatus and toner supply method | Physics | 2 | Active |
| US8257891B2 | Electrophotographic photoconductor, process cartridge and image forming apparatus | Physics | 2 | Active |
| US8483583B2 | Image forming apparatus and toner supply method | Physics | 2 | Active |
| US8503892B2 | Developing unit, image forming apparatus, and process cartridge | Physics | 1 | Active |
| US7885566B2 | Toner consumption-calculating apparatus, image forming apparatus, and toner consumption calculating method | Physics | 1 | Active |
| US9164435B2 | Fixing device and image forming apparatus | Physics | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.