...that "patent leather" got its name because the process of applying the polished black finish to leather was once patented?
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| Application No. | Application Title | Issue Date |
| 20100157176 | LIQUID CRYSTAL PROJECTOR APPARATUS AND COOLER A liquid crystal projector apparatus has a liquid crystal unit having a liquid crystal panel for modulating light, an incident side polarizing plate and an exit side polarizing plate disposed in front of and behind the liquid crystal panel along the optical axis, respec... | 06/24/2010 |
| 20060183994 | Projector with transmitter information receiver and method of correcting distortion of projected image A projector has a transmission time information reception unit for calculating the distances between a transmitter and first and second ultrasonic receivers based on reception times of ultrasonic and infrared pulses transmitted from a transmitter-equipped pointer rod fo... | 08/17/2006 |
| 20060170873 | Optical system for a display panel using divided irradiation An optical system for a display panel is disclosed. An optical system comprises a color separating portion for separating light that is emitted from a light source into a plurality of beams having different spectra; and a projecting portion for projecting the plurality ... | 08/03/2006 |
| 20060164242 | Projector device with theft prevention function and theft preventing method X-direction double integrator 3 integrates twice an acceleration that is detected by x-direction acceleration sensor 1, estimating a traveled distance in an x direction. Y-direction double integrator 4 integrates twice an acceleration that is detect... | 07/27/2006 |
| 20060121863 | Device control A device control is disclosed for controlling a device with a high-priority signal without interference by a low-priority signal. Panel keys, which serve as a high-priority signal receiver unit, receives a high-priority signal. A panel key signal processing unit, which ... | 06/08/2006 |
| 20060103763 | Picture quality improvement device and picture quality improvement method A field delay circuit aligns the phases of two field signals. An average value calculation circuit generates an average value signal of the two field signals. This average value signal can be regarded as a signal that has undergone a one-dimensional low-pass filter proc... | 05/18/2006 |
| 20060049775 | Projector for changing driving frequency for driving light source lamp within allowable frequency range A projector according to the present invention comprises a lamp driving control circuit for driving an ultra-high pressure mercury lamp at a driving frequency which is changed within an allowable frequency range. For example, the lamp driving control circuit may randoml... | 03/09/2006 |
| 20060043252 | Tilt angle adjusting device with a shaft and a moment transmission member A tilt angle adjusting device has a shaft configured to be fixed to a bottom surface of a housing at at least one end, and a moment transmission member connected to the shaft. The moment transmission member allows relative rotation between the shaft and the moment trans... | 03/02/2006 |
| 20060037739 | Circulation-type liquid cooling apparatus and electronic device containing same A cooling apparatus comprises a tank for keeping a coolant liquid therein and having an air layer, a heat receiving element in contact with a heat generating part to receive heat therefrom, a radiator for radiating heat absorbed by a coolant liquid, and a circulating me... | 02/23/2006 |
| 20060012759 | Multiscreen display system, multiscreen display method, luminance correction method, and programs Picture signals that indicate a screen that are supplied as output from a signal generation source are divided by a picture splitting device into picture signals of a plurality of screens for displaying a large screen and then supplied to a gradation conversion LUT unit... | 01/19/2006 |
| 20050270496 | Projector with a device for measuring angle of inclination A projector includes a projection device, a cross line positional information acquiring device for acquiring positional information of a cross line between a projection surface of the projection device and a plane crossing the projection surface, an inclination detectin... | 12/08/2005 |
| 20050264843 | Image transmission apparatus using information on rendered range An apparatus for transmitting image data through a network has an image rendering unit, an image processing device, a memory device, and an image transmitter. The image processing device is configured (a) to define a range surrounding an updated portion which has change... | 12/01/2005 |
| 20050264771 | Rotary operation mechanism, electronic apparatus and projector A rotary operation mechanism is provided with: a gear that is rotatably provided in the apparatus main unit of an electronic apparatus that is provided with an apparatus main unit and an outer case that covers this apparatus main unit; a rotating knob for effecting the ... | 12/01/2005 |
| 20050264763 | Three-panel projection display apparatus for displaying color images A three-panel projection display apparatus displays a color image by separating light emitted from a light source into lights of three primaries, i.e., red, green, and blue, with dichroic mirrors, by irradiating liquid crystal light valves with the respective separated ... | 12/01/2005 |
| 20050237346 | Image display device for rotating an image displayed on a display screen An image display device comprises a frame arranged along the periphery of display screen anda plurality of detectors mounted on the frame, each for generating a detection signal in response to an object positioned outside of the frame. Each of detectors generates a dete... | 10/27/2005 |
| 20050236144 | Liquid-cooled projector A liquid-cooled projector incorporates a means for cooling a component that to be cooled by means of a cooling liquid, and moreover, can constantly maintain the temperature of the component to be cooled at a prescribed temperature or below. A liquid-cooling jacket for c... | 10/27/2005 |
| 20050225731 | Single-plate color projector and synchronization adjusting method therefor A single-plate color projector includes a color wheel for chromatically separating light emitted from a light source in time series. An image forming device optically modulates each separated color light in sequence. A driving mechanism rotates the color wheel in a circ... | 10/13/2005 |
| 20050207046 | Luminance correcting apparatus, luminance correcting method, and projector A luminance correcting apparatus has a sensor for detecting luminances of reflected lights of projected lights individually in each of at least two colors which are reflected from a screen, a first memory for storing information representing luminances of the reflected ... | 09/22/2005 |
| 20050128530 | Image projection control apparatus capable of displaying a plurality of images An image projection control apparatus is connected to a plurality of data processors for generating image data, and displays a plurality of images projected onto a screen by a display unit based on the image data generated by the data processors. The image projection co... | 06/16/2005 |
| 20050095120 | Multiblade fan and electronic apparatus having a multiblade fan A multiblade fan includes a case having an air intake port and an air exhaust port, an impeller disposed in said case and having a plurality of blades rotatable about the center of said air intake port, and a noise silencer fin extending substantially parallel to the op... | 05/05/2005 |
| 20050073660 | Projector and projection method The present invention is addresses to the conventional problem that when the distortion of a projected image that is obliquely projected onto a screen is corrected, an imaging device that is installed near a projection lens for performing an electronic blackboard functi... | 04/07/2005 |