Takeo Kojima
16Patents
8h-index
39Co-inventors
72Inventor score
Filing activity: Aug 10, 1993 → Aug 29, 2012
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5530528A | Image forming apparatus having contact type, one-component developing unit | Physics | 69 | Expired |
| US6118463A | Positional error correction for color image forming apparatus | Electricity | 38 | Expired |
| US6070041A | Printing apparatus | Physics | 25 | Expired |
| US6049690A | Printing apparatus | Physics | 22 | Expired |
| US5946523A | Printing apparatus | Physics | 14 | Expired |
| US6914696B1 | Image forming apparatus | Physics | 11 | Expired |
| US6219496A | Image forming apparatus | Physics | 10 | Expired |
| US6324361A | Cooling unit and method of cooling an electrophotographic apparatus | Physics | 8 | Expired |
| US6142016A | Apparatus for detecting residual quantity of toners | Physics | 6 | Expired |
| US6975414B2 | Electrophotographic recording device | Physics | 5 | Expired |
| US6301450A | Electrophotography apparatus | Physics | 4 | Expired |
| US6815032B2 | Optical disc | Emerging Cross-Sectional Technologies | 4 | Expired |
| US7011878B2 | Optical disc | Emerging Cross-Sectional Technologies | 2 | Expired |
| US9592688B2 | Display device and image forming apparatus | Performing Operations; Transporting | 1 | Active |
| US6957444B2 | Optical disk and method of producing the same | Physics | 0 | Expired |
| US7482049B2 | Optical disc | Emerging Cross-Sectional Technologies | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.