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Imaki
Daisuke Imaki, Kanagawa JP
| Patent application number | Description | Published |
|---|---|---|
| 20100034563 | OPTICAL SCANNING DEVICE AND IMAGE FORMING APPARATUS - P-polarized light beam passing through an fθ lens passes through a polarization beam splitter, is converted into S-polarized light beam by a quarter-wave plate and a reflecting mirror, re-enters the polarization beam splitter, and is reflected at the polarization beam splitter in the −Z direction. An optical path of a light beam between a polygon mirror and the fθ lens, between the fθ lens and the polarization beam splitter, between the polarization beam splitter and the quarter-wave plate, between the quarter-wave plate and a reflecting mirror, between the reflecting mirror and the quarter-wave plate, and between the quarter-wave plate and the polarization beam splitter are in the same plane. | 02-11-2010 |
Daisuke Imaki, Kanagawa-Ken JP
| Patent application number | Description | Published |
|---|---|---|
| 20090220276 | OPTICAL WRITING DEVICE AND IMAGE FORMING APPARATUS - A first beam separation device is arranged either to allow the light beams to enter and pass or to reflect the light beams in accordance with a direction of entrance of the light beams. A second beam separation device is provided either to allow or to reflect the light beams having passed through the first beam separation device in accordance a wavelength thereof. The light beam passing through the second beam separation device scans one of plural scan objectives and the light beam reflected by the second beam separation device is further reflected by the first beam separation device and then scans the other one of the plural scan objectives. A first imaging device is provided to correct a f-theta (fθ) performance and a curvature of an imaging plane to enable the light beams to scan the plural scan objectives at a constant speed. The first imaging device is integral with the first beam separation device. | 09-03-2009 |
Daisuke Imaki, Sagamihara-Shi JP
| Patent application number | Description | Published |
|---|---|---|
| 20090066780 | Image forming apparatus, optical writing device, and optical writing method - An image forming apparatus includes a plurality of image carriers and an optical writing device including light sources that emit light beams of different wavelengths, a deflector that deflects the light beams emitted from the light sources and synthesized on an identical axis in a sub-scanning direction, a first beam separator, a second beam separator, a first imaging device, and a second imaging device. The first beam separator and the second beam separator are located between the first imaging device and the second imaging device and transmit or reflect the light beams according to travel directions or wavelengths thereof. One of the targets is scanned with the light beam transmitted through the second beam separator. Another target is scanned with the light beam reflected by the second and first beam separators. The first and second imaging devices narrow the beams in the main scanning direction and the sub-scanning direction, respectively. | 03-12-2009 |
Shunsaku Imaki, Kanagawa JP
| Patent application number | Description | Published |
|---|---|---|
| 20100245245 | SPATIAL INPUT OPERATION DISPLAY APPARATUS - A spatial input operation display apparatus providing a user interface allowing input operations inside a space without requiring hands or fingers to be stopped in space, and not requiring a physical shape or space. The spatial input operation display apparatus is provided with a shape identifying portion ( | 09-30-2010 |