Abstract: Provided is a VCSEL that includes a lower DBR of a first conductivity type, an active region, and an upper DBR of a second conductivity type, on a substrate. The lower DBR has a first to-be-oxidized Al-containing layer located farther from the active region than a second to-be-oxidized layer that is formed in the upper DBR. Both layers have an oxidized region and a first or a second non-oxidized region surrounded by the oxidized region. The first non-oxidized region is larger than the maximum size of the second non-oxidized region for a single mode oscillation, and smaller than the maximum size of the first non-oxidized region for a single mode oscillation. The second non-oxidized region is larger than the maximum size of the second non-oxidized region for a single mode oscillation. The first non-oxidized region has a size equal to or larger than that of the second non-oxidized region.

Abstract: There is provided a liquid drop expelling head including: a driving element generating a pressure wave at a liquid within a pressure chamber, and expelling a liquid drop from a nozzle which communicates with the pressure chamber; and a control section applying a driving waveform based on image information to the driving element, and controlling a preparatory waveform, which vibrates a meniscus of the nozzle, on the basis of one of a liquid drop expulsion standby time and a liquid drop amount of a first drop at a time of starting expulsion again.

Abstract: Disclosed is a material set for recording, including: an ink including a recording material, an organic solvent, and water; and ink receiving particles including an organic resin including hydrophilic monomer components and one or more hydrophobic monomer components, the hydrophilic monomer components including a monomer component having a hydroxyl group and a monomer component having a dissociable group, an absolute value of a difference between a solubility parameter (SP value) of the organic solvent included in the ink and a solubility parameter (SP value) of monomer components included in the organic resin, other than the monomer component having a dissociable group, being less than 5.

Abstract: The present invention provides an image forming apparatus including: a rotating body that holds recording medias on a circumferential surface; an image forming section that forms an image; a generating section that generates a pulse and a reference pulse; a measuring section that measures the number of pulses; a computing section that each time when predetermined number of pulses from generation of the reference pulse has been measured, divides a pulse width of a pulse before predetermined number of pulses by a first value to compute a pulse division time; and a controlling section that each time when predetermined number of pulses are measured from generation of the reference pulse, multiplies the pulse division time by a second predetermined value, thereby obtaining a forming start time, and that controls to start image formation when the forming start time has elapsed from the measurement of predetermined number of pulses.

Abstract: A single-layer seamless inkjet conveying belt including a polyimide resin or a polyamide-imide resin as a resin component and a conductive filler, the inkjet conveying belt having a volume resistivity of 1010 to 1014 ?cm. Also provided is an inkjet recording apparatus including a recording medium conveying device containing the inkjet conveying belt and a recording head that discharges ink droplets onto a recording medium.

Abstract: In a droplet ejecting apparatus, a detection pattern output unit drives a droplet ejecting head based on a pulse signal and image information of a detection pattern comprising plural unit patterns so as to form an image of the detection pattern on a recording medium. A correction information generating unit derives a distance between adjacent unit patterns based on the image of a read detection pattern, compares the distance with a distance according to the conveyance velocity of the recording medium by a moving unit, and generates correction information so as to enlarge the pulse width when the derived distance is shorter, and to reduce the pulse width when the derived distance is longer.

Abstract: The present invention provides a droplet ejection head having a liquid ejection energy driving device to eject a liquid from a nozzle, the droplet ejection head including: a nozzle plate provided with a nozzle to eject liquid droplets; a tetrahedral amorphous carbon film provided on the nozzle plate; and a water-repellent film provided on the tetrahedral amorphous carbon film.

Abstract: A Distributed Video System provides a scalable and interactive video-on-demand service with VCR operations over a communication network includes a video server and video clients, each of which includes a memory buffer, called a client buffer. The System provides a method of managing video frames of client buffers in a cooperative way with video frames held in the video server allows the video frames of the client buffers to be shared among the video clients. Requests for a video are primarily served by the video clients that have the requested video frames in their client buffers and only requests that the video clients are unable to attend to will be provided by the video server.

Abstract: A recording apparatus includes an intermediate transfer member, a supply unit that supplies onto the intermediate transfer member a curable solution containing a cationic curable material that is cured by a cationic curing reaction upon application of an external stimulus, a discharge unit that discharges an ink containing a recording substance to a layer to be cured that has been formed by the curable solution supplied onto the intermediate transfer member, a transfer unit that transfers, from the intermediate transfer member to a recording medium, the layer to be cured to which the ink is discharged, and a stimulus supply unit that supplies a stimulus that cures the layer to be cured.

Abstract: An optical module includes a mounted member, a surface optical device and a positioning portion. The mounted member includes an inserted portion. The surface optical device includes a substrate, an optical axis, and an insertion portion. The optical axis is provided in a direction perpendicular to the substrate. The insertion portion has a step surface that is inserted into the inserted portion of the mounted member in a direction perpendicular to the optical axis so as to position the optical axis. The positioning portion is provided in the mounted member and positions an optical transmission member so that the optical transmission member is optically coupled to the surface optical device.

Abstract: There is provided a capacitive load driving circuit connected to a capacitive load that causes ejection, from an ejecting nozzle, of a liquid droplet of a droplet amount that corresponds to a voltage level of charging voltage, the capacitive load driving circuit including: a first line that is connected to the capacitive load and that applies the charging voltage to the capacitive load; a power source line carrying dc voltage that is supplied from a power source for driving of the capacitive load; a charging control signal line that controls a voltage level of the charging voltage with respect to the capacitive load; and an N-type electric field effect transistor to whose source the first line is connected, and to whose drain the power source line is connected, and to whose gate the charging control signal line is connected.

Abstract: A semiconductor storage device includes an external input/output port. A system bus of a server, which is extended to outside of the server, is connected to the external input/output port directly as a serial interface.

Abstract: A droplet ejecting device has a droplet ejecting head, a rotating member, a recovery unit, and a negative pressure generating unit. The rotating member is disposed so as to oppose a nozzle surface of the droplet ejecting head, and is a conveying body that conveys a recording medium. The recovery unit has a suction hole provided at a region of the rotating member on which the recording medium is not loaded, and recovers, from the suction hole, liquid that becomes a mist at a time when the droplets are ejected from the nozzles. The negative pressure generating unit generates negative pressure at the recovery unit.

Abstract: A recording apparatus comprises: an intermediate transfer body; a releasing agent supply device that supplies a releasing agent onto the intermediate transfer body; a particle supply device that supplies hydrophilic ink-recipient particles that receive an ink, onto the releasing agent supplied onto the intermediate transfer body; an ink ejection device that ejects the ink onto the ink-recipient particles supplied onto the intermediate transfer body; and a transfer device that transfers the ink-recipient particles that received the ink, onto a recording medium from the intermediate transfer body, the releasing agent comprising at least one selected from the group consisting of a silicone oil, a fluorinated oil and an organic compound having a solubility parameter (SP value) of about 11 or less.

Abstract: An image forming apparatus including plural capacitive loads, with one terminal of each of the capacitive loads being connected to a common electrode and with each of the capacitive loads being charged/discharged on the basis of image data, and a first and second drive circuits is provided. The first drive circuit includes plural charge/discharge controllers that are individually connected to other terminals of the capacitive loads and individually control the charging and discharging of the capacitive loads and first and second electrical power wires that are connected to the charge/discharge controllers and charge and discharge the capacitive loads via the charge/discharge controllers. The second drive circuit is connected to each of the first and second electrical power wires and adjusts charge resistance and discharge resistance in response to control of the charge/discharge controllers.

Abstract: A roller mechanism includes a pair of rollers and an urging unit. The pair of rollers oppose one another sandwiching a conveyance path of a sheet material, and are provided to be capable of increasing and reducing an axis-to-axis separation thereof. The urging unit urges at least one of the pair of rollers in a direction of reducing the axis-to-axis separation of the pair of rollers with an urging force that increases with an increase in the axis-to-axis separation of the pair of rollers, and presses the sheet material with the pair of rollers. The urging unit increases the urging force non-linearly, with a rate of increase of the urging force falling as the axis-to-axis separation of the pair of rollers increases within a range of changes at times of sheet material-pressing.

Abstract: A lubricant applying device, includes: an image carrier; a lubricant; a lubricant applying member that contacts the image carrier and the lubricant, and maintains a portion of the lubricant on an outer periphery of the lubricant applying member due to rotating so as to apply the lubricant to the image carrier; and a solid material that is adjacently provided with the lubricant on an upstream side in a rotation direction of the lubricant applying member, wherein the solid material has a higher level of hardness than the lubricant and is worn out due to contact with the lubricant applying member.

Abstract: A drive device drives a liquid ejection head that ejects recording liquid droplets from nozzles as a result of drive signal voltages being applied to drive elements. The drive device includes a transfer unit that transfers and outputs printing data and an output unit that outputs the result of a comparison where the plural printing data are compared. A liquid ejection apparatus is disclosed with the liquid ejection head drive device.

Abstract: A VCSEL includes a first conductivity-type first semiconductor mirror layer on a substrate, an active region thereon, a second conductivity-type second semiconductor mirror layer thereon, and a current confining layer in proximity to the active region. A mesa structure is formed such that at least a side surface of the current confining layer is exposed. The current confining layer includes a first semiconductor layer having an Al-composition and a second semiconductor layer having an Al-composition and being formed nearer to the active region than the first semiconductor layer does. Al concentration of the first semiconductor layer is higher than that of the second semiconductor layer. When oscillation wavelength of laser light is ?, optical thickness being sum of the thickness of the first and second semiconductor layers is ?/4. The first and second semiconductor layers are selectively oxidized from the side surface of the mesa structure.

Abstract: The present invention provides a droplet ejecting apparatus including an ejector that ejects a liquid, and a humidity regulator that includes a humidity regulating material and regulates humidity around the ejector. The invention also provides a cap for maintaining a droplet ejecting port in an airtight condition, the droplet ejecting port being for ejecting a droplet by an ink jet system, the cap including, at least in an inner wall, a humidity regulating material containing an inorganic porous material.