| Sieko Epson Corporation Patent applications |
| Patent application number | Title | Published |
|---|
| 20100238419 | LIGHT CONTROL DEVICE AND ILLUMINATION DEVICE FOR A PROJECTOR INCLUDING SAME - In at least one embodiment of the disclosure, a light control device includes a light blocking module to block a luminous flux passing through the light control device in a direction parallel to a system optical axis. The light blocking module includes a first and a second light blocking member. The first light blocking member includes a cutout portion at an end near a system optical axis, the first light blocking member configured so as to change a size of an area blocking the luminous flux in accordance with an opening and closing operation of the light blocking module. The second light blocking member is disposed in proximity to the first light blocking member and configured so as to increasingly block the luminous flux from passing through the cutout portion of the first light blocking member in accordance with the closing operation of the light blocking module. | 09-23-2010 |
| 20090244249 | LAYERED STRUCTURE - A layered structure is provided with a recording unit, a reading unit whose back edge is connected to the recording unit via a pivot member, a support member having (i) a connecting portion that is connected pivotally to the reading unit, (ii) a contact portion that contacts a counterface surface of the recording unit facing the reading unit, and (iii) a support column that positions the contact portion at a position a certain distance from the connecting portion, a biased member that is biased against the support member in a forward direction, and a stopping portion formed on the counterface surface to stop the contact portion contacting the counterface surface from being displaced along the counterface surface. | 10-01-2009 |
| 20090213159 | Printing Apparatus - A printing apparatus includes a recording head that prints an image and an ink cartridge that stores ink to the recording head. The ink cartridge includes an ink pack and an ink-end sensor that detects an ink-end point based on the pressure of ink supplied from the ink pack. The ink pressure corresponding to the ink-end point detected by the ink-end sensor is set to a first pressure that is the minimum pressure near an outlet of the ink cartridge at which the recording head can print an image of predetermined quality. A determining unit permits starting of a printing or cleaning operation in response to a command issued before the ink-end sensor detects the ink-end point and prohibits starting of a printing or cleaning operation in response to a command issued after the ink-end sensor has detected the ink-end point. | 08-27-2009 |
| 20090160907 | LIQUID EJECTION HEAD - A liquid ejection head including: a head main body including: a cavity unit including a passage forming base plate forming a liquid passage from a common liquid chamber to a nozzle opening via a pressure chamber; and a pressure generating source generating a change of pressure of liquid in the pressure chamber to eject the liquid in the pressure chamber as a liquid droplet from the nozzle opening; and a case member to which the head main body is attached and which includes: a first member provided with a first atmosphere opening passage; and a second member laminated on the first member and provided with a second atmosphere opening passage, wherein the first and second atmosphere opening passages communicate with each other under the laminated state and are opened to atmosphere. | 06-25-2009 |
