...that "patent leather" got its name because the process of applying the polished black finish to leather was once patented?
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| Number | Title | Issue Date |
| 6841417 | Semiconductor device and semiconductor assembly apparatus for semiconductor device In a semiconductor device, a plurality of linear semiconductors of a predetermined length, on which electronic element are formed, are aligned laterally and in parallel. A semiconductor assembly apparatus for assembling the semiconductor device, aligns the linear se... | 01/11/2005 |
| 6804386 | Optical member inspecting apparatus and method of inspection thereof An optical member inspection apparatus includes an inspection optical system having a light source, and a diffusing means for diffusing the light emitted from the light source. The diffusing means has a central portion and a peripheral portion. The diffusion transmi... | 10/12/2004 |
| 6790176 | Probe of endoscope A probe of an endoscope comprises a light guide fiber bundle and an image guide fiber bundle. The light guide fiber bundle supplies illumination light to the distal end of the probe, to illuminate the observed object. The illumination light is reflected by the obser... | 09/14/2004 |
| 6788804 | Optical member inspecting apparatus and method of inspection thereof An optical member inspection apparatus includes an inspection optical system having a light source, and a diffusing means for diffusing the light emitted from the light source. The diffusing means has a central portion and a peripheral portion. The diffusion transmi... | 09/07/2004 |
| 6697526 | Image compression and expansion apparatus An image compression and expansion apparatus obtains an average value of a single block (8×8 pixels) in a first matrix (64×64 pixels) of the original image data, to generate reduced image data of a second matrix (8×8 pixels). A sub-matrix, which is dis... | 02/24/2004 |
| 6697513 | Optical member inspecting apparatus and method of inspection thereof An optical member inspection apparatus includes an inspection optical system having a light source, and a diffusing means for diffusing the light emitted from the light source. The diffusing means has a central portion and a peripheral portion. The diffus... | 02/24/2004 |
| 6636625 | Optical member inspecting apparatus and method of inspection thereof An optical member inspection apparatus includes an inspection optical system having a light source, and a diffusing means for diffusing the light emitted from the light source. The diffusing means has a central portion and a peripheral portion. The diffus... | 10/21/2003 |
| 6628457 | Antivibration microscope Angular speed sensors and acceleration sensors are built into the casing of a video-type stereoscopic microscope. The angle of rotation of the stereoscopic microscope detected by the angular speed sensors and the amount of shift of the stereoscopic micros... | 09/30/2003 |
| 6573922 | Thermal head driver system and thermal image-forming apparatus therewith A thermal head driver system cyclically and independently drives at least two thermal heads having each a plurality of electric resistance elements. A storage system cyclically stores an image information data, the image information data cyclically being ... | 06/03/2003 |
| 6545523 | Air delivery unit for endoscope including pressure detecting apparatus An air delivery unit for an endoscope includes a pressure-sensor, a voltage descent processor, an amplifier, and an electric power supplier. A closed-space is formed in the air delivery unit. The air delivery unit adjusts a pressure in the closed-space by... | 04/08/2003 |
| 6535627 | Optical member inspecting apparatus and method of inspection thereof An optical member inspection apparatus includes an inspection optical system having a light source, and a diffusing means for diffusing the light emitted from the light source. The diffusing means has a central portion and a peripheral portion. The diffus... | 03/18/2003 |
| 6517479 | Stereoscopic endoscope A stereoscopic endoscope includes a primary optical system for transmitting a luminous flux, reflected by an object located near a first end of the optical system, to a second end of the optical system. A first image forming system forms a first image of ... | 02/11/2003 |
| 6515806 | Eyepiece attachment structure for observation optical instrument An eyepiece attachment structure for attaching an eyepiece to an observation optical instrument is provided with an attaching sleeve protruding from the eyepiece, a holding member secured to the body, the holding member frictionally holding the attaching ... | 02/04/2003 |
| 6508810 | Connecting structure for a flexible tube and a mouthpiece of a treatment tool used for an endoscope A connecting structure of a flexible tube with a mouthpiece, serving as elements of a treatment tool for an endoscope, includes at least one claw projection provided on an outer peripheral surface of a cylindrical connecting portion of the mouthpiece; and... | 01/21/2003 |
| 6497653 | Probe of endoscope A probe of an endoscope comprises a light guide fiber bundle and an image guide fiber bundle. The light guide fiber bundle supplies illumination light to the distal end of the probe, to illuminate the observed object. The illumination light is reflected b... | 12/24/2002 |
| 6498900 | Automatic focusing apparatus An automatic focusing apparatus in which the quantity of auxiliary light can be precisely controlled regardless of conditions of an object to be taken is disclosed. The apparatus includes a passive AF sensor unit, a flash device and a main CPU which contr... | 12/24/2002 |
| 6493153 | Mechanism for moving optical element of an optical system First lens frame has first front and rear shaft bearings that engage with the first guiding shaft along the optical axis, and a second shaft bearing that engages with a second guiding shaft along the optical axis. The first front and rear shaft bearings a... | 12/10/2002 |
| 6491725 | Keyhole button A keyhole button used as a supplement of a keyhole portion formed on a cranium is constituted to have a brim portion having front and back surfaces, and a shaft portion integrally provided on the back surface of the brim portion. The front surface of the ... | 12/10/2002 |
| 6491628 | Electronic endoscope An electronic endoscope having a video-scope with an image sensor, a video-processor and a display has an image forming processor, a signal processor and a display-state changing processor. The signal processor generates video signals on the basis of imag... | 12/10/2002 |
| 6493512 | Step zoom lens camera A step zoom lens camera includes a rotatable cam ring, a cam groove formed on the cam ring, including step areas, a linear movement member which is connected to the cam ring, and a cam-guided lens group which is guided by the linear movement member to mov... | 12/10/2002 |
| 6488632 | Ultrasonic endoscope An ultrasonic endoscope has a bending portion, an ultrasonic probe, and a flexible circuit board. The bending portion, connected to the point of a flexible tube, bends by remote control. The ultrasonic probe has a plurality of ultrasonic wave vibrators, w... | 12/03/2002 |
| 6488631 | Ultrasonic endoscope An ultrasonic endoscope has a bending portion, an ultrasonic probe, and a flexible circuit board. The bending portion, connected to the point of a flexible tube, bends along two predetermined bending-directions perpendicular to each other, by remote contr... | 12/03/2002 |
| 6490101 | Wide-angle lens system A wide-angle lens system includes a negative first lens group and a positive second lens group with a diaphragm, in this order from an object. Upon focusing, the positive second lens group is arranged to be moved along the optical axis. The wide-angle len... | 12/03/2002 |
| 6487372 | Photometry device A photometry device has a normal light photometry sensor and a external light sensor. The normal light photometry sensor performs photometry with respect to an object. The external light sensor performs photometry with respect color components of the exte... | 11/26/2002 |
| 6487161 | Objective lens and optical head for optical disc drive An optical head for an optical disc drive is provided with a first laser diode that emits a shorter wavelength laser beam, a second laser diode that emits a longer wavelength laser beam, and an objective lens for converging the beams emitted by the laser ... | 11/26/2002 |
| 6487023 | Zoom lens system and a zoom lens barrel therefor A zoom lens system including a positive first lens group, a negative second lens group, a positive third lens group, and a positive fourth lens group. Upon, all the lens groups move towards the object. A lens group other than the first one is a lens group... | 11/26/2002 |
| 6486980 | Film scanner A film scanner for electronically scanning an image recorded on a photographic film, includes an image scanner unit, a liquid crystal display (LCD) unit, and a back-light unit in a body. The back-light radiates a light from a top surface of the body, and ... | 11/26/2002 |
| 6486905 | Image-forming substrate and image-forming system using same An image-forming system has an image-forming sheet, and a printer for forming an image on the sheet. The sheet has a sheet of paper, and a layer of microcapsule, coated over the paper sheet, that contains a plurality of microcapsules filled with a dye. A ... | 11/26/2002 |
| 6485552 | Ink composition for thermal ink jet printer or thermal ink permeation printer An ink composition includes an oil-based ink and a heat decomposition gas-developing agent that generates gas by a relatively small amount of heat. A thermal printer using the ink composition is not clogged with the composition even after a long-term stor... | 11/26/2002 |
| 6485201 | Film back exchangeable camera A film back exchangeable camera is provided. The film back exchangeable camera has a camera body and a film back that can be attached to a rear portion of the camera body. The film back exchangeable camera includes a backward protrusion protruding backwar... | 11/26/2002 |
| 6485129 | Thermal head and ink transfer printer using same Thermal line head includes an electrically-insulated base member, plural sets of at least two electric resistance elements formed on a surface of the base member and aligned with each other, and a driver circuit that selectively and electrically energizes... | 11/26/2002 |
| 6487370 | Lens drive control apparatus A lens drive control apparatus includes a movable lens which is movable along the optical axis; a lens driver; a code plate having two limit positions respectively serving as mechanical movement limit positions of the movable lens, the code plate includin... | 11/26/2002 |
| 6483992 | Disposition structure of zoom drive gear for a camera In a camera, a drive gear receiving portion (32) for receiving a drive gear (28) is defined in a space by a lens-barrel portion (14) and a shielding cover (26) removably mounted to the lens-barrel portion (14). At the location constituting the drive gear ... | 11/19/2002 |
| 6483649 | Zoom lens system A zoom lens system includes a first lens group, a second lens group, and a third lens group. At least the first and third lens groups move along the optical axis for zooming. The second lens group includes at least one negative lens element, and the zoom ... | 11/19/2002 |
| 6483591 | Pattern reading apparatus A pattern reading apparatus reads a pattern from a reflective object. The pattern reading apparatus includes a minute-area light source, an objective lens system, an imaging lens, and an imaging element. The objective lens system causes the illumination l... | 11/19/2002 |
| 6482471 | Image-forming substrate coated with layer of microcapsules In an image-forming substrate, a layer of microcapsules is coated over a sheet of paper, and contains at least one type of microcapsule filled with a solid ink. A shell element of each microcapsule is constituted so as to be squashed and broken under a pr... | 11/19/2002 |
| 6482150 | Optical system for the light source device of a video endoscope system An video endoscope system has, as main components, a video endoscope equipped with a light guide, a light source device for supplying illumination light and exciting light to the light guide, and an endoscope processor to process image signals and to cont... | 11/19/2002 |
| 6480344 | Objective lens for optical pick-up An objective lens includes a refractive lens having a positive refractive power, and a diffractive lens structure having a plurality of concentric ring-shaped steps that are formed on a lens surface of the refractive lens. The objective lens is a biconvex... | 11/12/2002 |
| 6480343 | Diopter adjusting device A diopter adjusting device includes a diopter adjusting lens which is guided in an optical axis thereof; a cam member which is provided rotatable about an axis which is parallel to the optical axis of the diopter adjusting lens, the cam member being provi... | 11/12/2002 |
| 6480303 | Light amount distribution control device A light amount distribution control device has a reflecting sheet by which light irradiated by LEDs is reflected and is radiated onto an object to be read. The light reflected by the object is made incident onto a line sensor to sense an image formed on t... | 11/12/2002 |