Masami Tabata
25Patents
12h-index
10Co-inventors
74Inventor score
Filing activity: Nov 3, 1993 → Sep 10, 2008
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6858837B2 | Illuminating unit having diffusion means | Electricity | 93 | Expired |
| US6326602A | Image reading apparatus having light source electrically and directly connected to image sensor board | Physics | 32 | Expired |
| US6295141A | Image reading apparatus | Electricity | 28 | Expired |
| US6360030B1 | Illumination device and image reading apparatus using the same | Electricity | 28 | Expired |
| US6239421A | Rod lens array and image read apparatus and system using the same | Electricity | 22 | Expired |
| US6375335B1 | Illumination device and information processing apparatus | Physics | 19 | Expired |
| US5581076A | Contact type image sensor with more-unified construction | Electricity | 17 | Expired |
| US5661540A | Lens array and close contact type image sensor using the same | Electricity | 16 | Expired |
| US6115187A | Optical device and image reading apparatus | Electricity | 15 | Expired |
| US6661497B2 | Illumination apparatus using light guide | Electricity | 14 | Expired |
| US6081351A | Image reading apparatus | Electricity | 13 | Expired |
| US6002494A | Image reading apparatus having light source electrically and directly connected to image sensor board | Physics | 12 | Expired |
| US5965870A | Image reading system with means for converging light from a plurality of light sources on a substantially same position to uniformly irradiate an object | Electricity | 12 | Expired |
| US6055072A | Image reading apparatus and image reading system | Electricity | 11 | Expired |
| US6333779A | Illumination apparatus using light guide | Electricity | 11 | Expired |
| US5986253A | Illuminating unit for illuminating an original to be read by an image sensor | Electricity | 11 | Expired |
| US6479812B2 | Image reading apparatus having diffusion means | Electricity | 11 | Expired |
| US6556317B2 | Image reading apparatus and image reading system | Electricity | 7 | Expired |
| US5357099A | Contact type image sensor having original support member with a reflecting surface | Electricity | 7 | Expired |
| US6473154B2 | Illumination apparatus using light guide | Electricity | 7 | Expired |
| US6198551A | Image reading apparatus having line sensors arranged in specific order and with different or same interval between adjacent line sensors | Electricity | 6 | Expired |
| US6122105A | Optical apparatus and optical system | Electricity | 5 | Expired |
| US8167475B2 | Linear lighting apparatus and image reader using the same | Electricity | 4 | Active |
| US6337476B2 | Image reading apparatus having light source electrically and directly connected to image sensor board | Physics | 3 | Expired |
| US6462841B1 | Image sensor, and image processing apparatus using the same | Electricity | 2 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.