| Patent application number | Description | Published |
|---|
| 20080218723 | LIGHT AMOUNT CONTROL, OPTICAL WRITING, AND IMAGE FORMING APPARATUSES - A light-amount control apparatus for controlling an output light amount of light sources used for optical writing is disclosed. The apparatus includes one or more drive units for supplying a drive current to the light source; one or more drive-current setting units for determining an amount of the drive current provided to the light source from the drive unit; a light-amount detecting unit for detecting an output light from the light source; and outputting a voltage according to the detected light amount; and a processing unit for setting the drive current amount based on the detected value detected with the light-amount detecting unit. | 09-11-2008 |
| 20080227233 | METHOD FOR MANUFACTURING SEMICONDUCTOR OPTICAL DEVICE - A method for manufacturing a semiconductor optical device includes forming a BDR (Band Discontinuity Reduction) layer of a first conductivity type doped with an impurity, depositing a contact layer of the first conductivity type in contact with the BDR layer after forming the BDR layer, the contact layer being doped with the same impurity as the BDR layer and used to form an electrode, and heat treating after forming the contact layer. | 09-18-2008 |
| 20080254563 | METHOD FOR MANUFACTURING SEMICONDUCTOR OPTICAL DEVICE - A method for manufacturing a semiconductor optical device includes: forming a p-type cladding layer; forming a capping layer on the p-type cladding layer the capping layer being selectively etchable relative to the p-type cladding layer; forming a through film on the capping layer; forming a window structure by in implantation; removing the through film after the ion implantation; and selectively removing the capping layer using a chemical solution. | 10-16-2008 |
| 20080265275 | SEMICONDUCTOR DEVICE AND MANUFACTURING METHOD THEREFOR - A laser diode includes a first n-cladding layer disposed on and lattice-matched to an n-semiconductor substrate, wherein the first n-cladding layer is n-AlGaInP or n-GaInP; a second n-cladding layer of n-AlGaAs supported by the first n-cladding layer; and an inserted layer disposed between the first n-cladding layer and the second n-cladding layer, wherein the inserted layer includes the same elements as the first n-cladding layer, the inserted layer has the same composition ratios of Al and Ga (and P) as the first n-cladding layer, and the inserted layer contains a lower composition ratio of In than the first n-cladding layer. | 10-30-2008 |
| 20090314927 | OPTICAL SCANNING DEVICE, IMAGE FORMING APPARATUS, AND OPTICAL SCANNING METHOD - A surface-emitting laser array includes a plurality of surface-emitting laser devices arranged in an array. An optical system includes a plurality of optical devices to guide a light beam composed of lights emitted from the surface-emitting laser array to a target surface to be scanned. A light-intensity-control-device switching unit places one of light-intensity control devices having different light transmittances at a predetermined position in an optical path of the light beam. | 12-24-2009 |
| 20100165074 | INFORMATION PROCESSING APPARATUS, INFORMATION PROCESSING METHOD AND PROGRAM - An information processing apparatus is provided which includes a display unit that displays predetermined information, an imaging unit that is installed on a right side or left side of a central portion of an upper frame of an outer frame enclosing the display unit to obtain a pickup image of a user, and a control unit that detects a face area of the user from the pickup image obtained by the imaging unit to cut out the face area containing the detected face area. | 07-01-2010 |
| 20100169004 | INFORMATION PROCESSING APPARATUS, INFORMATION PROCESSING METHOD AND PROGRAM - An information processing apparatus is provided which includes an acquired information storage unit capable of storing acquired information that associates one or a plurality of pieces of mutually different position information and an acquisition count of each of one or the plurality of pieces of position information, an acquisition unit that acquires the position information indicating a position of a local apparatus, an acquisition count measuring unit that, when the acquisition unit acquires the position information, adds a predetermined value to the acquisition count associated with the acquired position information, and a control unit that sorts the acquired information stored in the acquired information storage unit in descending order of the acquisition count. | 07-01-2010 |
| 20110164640 | OPTICAL SEMICONDUCTOR DEVICE - An optical semiconductor device comprises: a semiconductor light emitting element including semiconductor layers, including an active layer having a quantum well structure and epitaxially grown on a semiconductor substrate; and a submount on which the semiconductor light emitting element is mounted. Strain in the active layer after mounting the semiconductor light emitting element on the submount is larger than strain in the active layer after epitaxial growth of the active layer. The strain in the active layer during the epitaxial growth results in the surface of the semiconductor layers being a mirror surface. The strain in the active layer after the semiconductor light emitting element is mounted on the submount would not result in a mirror surface if present in the active layer at the epitaxial growth. | 07-07-2011 |
