Issued Patents All Time
Showing 101–125 of 205 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7809229 | Optical device | — | 2010-10-05 |
| 7766491 | Optical beam scanning device, image forming apparatus | — | 2010-08-03 |
| 7729568 | Optical device having stress layer inducing refraction index variation in a partial region of a substrate by photoelastic effect | Kazuhiro Tanaka, Tetsuya Miyatake | 2010-06-01 |
| 7663790 | Optical multi-beam scanning device and image forming apparatus | — | 2010-02-16 |
| 7649663 | Optical beam scanning device restraining beam position error due to temperature change with diffraction grating and image forming apparatus using the same | — | 2010-01-19 |
| 7646519 | Optical scanner, optical scanning method | — | 2010-01-12 |
| 7627200 | Optical device | Tetsu Hasegawa, Masaharu Doi, Kazuhiro Tanaka | 2009-12-01 |
| 7609428 | Optical beam scanning device, optical beam scanning method | — | 2009-10-27 |
| 7609429 | Optical beam scanning device, optical beam scanning method | — | 2009-10-27 |
| 7609430 | Optical beam scanning device restraining beam position error due to temperature change with diffraction grating and image forming apparatus using the same | — | 2009-10-27 |
| 7605963 | Optical beam scanning apparatus, optical beam scanning method and image forming apparatus | — | 2009-10-20 |
| 7567772 | Color printer apparatus | — | 2009-07-28 |
| 7557820 | Optical multi-beam scanning device and image forming apparatus | — | 2009-07-07 |
| 7509006 | Optical device | — | 2009-03-24 |
| 7474449 | Optical multi-beam scanning device and image forming apparatus | — | 2009-01-06 |
| 7414766 | Optical beam scanning device having two sets of fθ mirrors where the mirror base and mirror face have differing coefficients of linear expansion | — | 2008-08-19 |
| 7398754 | Piston for internal combustion engine | Akito Tanihata, Naoko Sato, Hisayasu Kojima, Kouji Katsumata | 2008-07-15 |
| 7396204 | Variable-nozzle mechanism, exhaust turbocharger equipped therewith, and method of manufacturing exhaust turbocharger with the variable-nozzle mechanism | Yasuaki Jinnai, Motoki Ebisu | 2008-07-08 |
| 7391547 | Optical multi-beam scanning device and image forming apparatus | — | 2008-06-24 |
| 7391548 | Optical beam scanning device and image forming apparatus | — | 2008-06-24 |
| 7351950 | Optical beam scanning device and image forming apparatus | — | 2008-04-01 |
| 7330294 | Optical multi-beam scanning device and image forming apparatus | — | 2008-02-12 |
| 7327507 | Optical beam scanning device having two sets of fθ mirrors where the mirror base and mirror face have differing coefficients of linear expansion | — | 2008-02-05 |
| 7321378 | Optical multi-beam scanning device and image forming apparatus | — | 2008-01-22 |
| 7304659 | Optical beam scanning device and image forming apparatus | — | 2007-12-04 |