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...that Kleenex tissue was originally designed to be a gas mask filter? It was developed at the beginning of World War I to replace cotton, which was then in short supply as a surgical dressing.
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| Number | Title | Issue Date |
| 8183169 | Phosphate glass, fluorophosphate glass, preform for precision press-molding, optical element and process for the production of thereof A fluorophosphate glass having a fluorine content of 25% or more by anionic %, which is produced from a glass raw material containing 0.1 to 0.5%, by anionic %, of a halide containing a halogen element selected from chlorine, bromine or iodine, and a phosphate glass... | 05/22/2012 |
| 8181486 | Methods for manufacturing performs for press molding and method for manufacturing optical elements In the method for manufacturing preforms for press molding, a glass melt gob is separated from glass melt flow flowing out of a pipe and the glass melt gob is molded into a preform for press molding on a glass gob casting mold. The method comprises a viscosity-incre... | 05/22/2012 |
| 8174774 | Zoom lens system A zoom lens system includes a positive first lens group, a negative second lens group, a positive third lens group, and a positive fourth lens group, in this order from the object. Upon zooming from the short focal length extremity to the long focal length ex... | 05/08/2012 |
| 8170362 | Edge-enhancement device and edge-enhancement method An edge-enhancement device for subjecting input image data to edge enhancement so as to generate output image data has an edge-component generator, a weighting processor, and an addition processor. The input image data is obtained from a frame image having a plurali... | 05/01/2012 |
| 8169720 | Rear focus wide-angle lens system and electronic imaging device using the same A rear focus wide-angle lens system includes a first lens group, a diaphragm, and a second lens group, in this order from the object. The second lens group is moved along the optical axis of the lens system when focusing is performed from infinity to an object at a ... | 05/01/2012 |
| 8169466 | Endoscope system An endoscope system comprises a light source, a light sensor, a signal processor, a video-signal generator, and a switcher. The light source emits red light including a first wavelength, green light including a second wavelength, and blue light including a third wav... | 05/01/2012 |
| 8168255 | Coating method and manufacturing method of photochromic lens To manufacture a photochromic lens by uniformly applying a coating liquid having a photochromic function without leaving an uncoated area, with a minimum necessary coating amount. There is provided a manufacturing method of the photochromic lens for dripping and app... | 05/01/2012 |
| 8167796 | Endoscope light source unit An endoscope light source unit for making illumination light incident on a light guide, includes a rotary aperture plate, aperture openings of different opening ratios and an auxiliary-light aperture opening of a maximum opening ratio formed in the rotary aperture p... | 05/01/2012 |
| 8164839 | Endoscope and objective lens for the same An objective lens for an endoscope, including a negative front lens group and a positive rear lens group arranged such that an aperture stop is positioned therebetween, wherein the front lens group has at least a front-side negative lens and a front-side positive le... | 04/24/2012 |
| 8162719 | Method and device for processing lens The optical surface of a lens (21) held and rotated by the rotating shaft (12) of a lathe is cut or ground into an aspherical surface from a direction perpendicular to the axis of the rotating shaft (12) and the axial direction of the rotating s... | 04/24/2012 |
| 8162478 | Pair of progressive power lens and method for designing same An object is to reduce the inconvenience given to the binocular vision function when wearing and using spectacles making use of a pair of progressive power lenses having different distance dioptric power for right and left. For this reason, the present invention ass... | 04/24/2012 |
| 8158541 | Optical glass, precision press-molding preform and optical element Provided is an optically uniform and high-quality optical glass that is free from the occurrence of striae when a precision press-molding preform is produced therefrom, and that is a fluorine-containing glass having a refractive index nd(1) wherein the re... | 04/17/2012 |
| 8142963 | Methods of manufacturing a mask blank substrate, a mask blank, a photomask, and a semiconductor device A before-chucking main surface shape is measured in an actual measurement region of a main surface of a substrate which has been precision-polished and, based on the before-chucking main surface shape of the substrate and a shape of a mask stage (1), an after... | 03/27/2012 |
| 8142349 | Rotation mechanism for endoscope A connection mechanism includes a rotatable member formed with a connection hole in which a shaft member is rotatably fitted. A thrust stopper is arranged at the distal end of the shaft member to prevent the rotatable member from being removed from the shaft member.... | 03/27/2012 |
| 8137868 | Photomask blank, photomask, and methods of manufacturing the same A photomask blank has a light-shielding film composed of at least two layers on a transparent substrate. The light-shielding film includes a light-shielding layer made of a material mainly containing tantalum nitride and further containing xenon and a front-surface ... | 03/20/2012 |
| 8137867 | Photomask blank, photomask, and methods of manufacturing the same A photomask blank has a light-shielding film composed of at least two layers on a transparent substrate. The light-shielding film includes a light-shielding layer made of a material mainly containing tantalum nitride and further containing xenon and a front-surface ... | 03/20/2012 |
| 8133321 | Process for producing silicon carbide single crystal A process for producing a silicon carbide single crystal in which a silicon carbide single crystal layer is homo-epitaxially or hetero-epitaxially grown on a surface of a single crystal substrate, wherein a plurality of substantially parallel undulation ridges that ... | 03/13/2012 |
| 8132951 | Endoscope system An endoscope system comprises first and second emitters, a fiber, and a controller. The first emitter emits illumination light to a photographic subject. The second emitter emits infrared light. Emission intensity of the second emitter is stronger than that of the f... | 03/13/2012 |
| 8130447 | Polarization element A polarization element has a polarizer with an aggregate of metal pieces: Plasmon resonance frequency of a metal piece varies according to the polarization direction of a irradiated on it. In the polarization element, the plasmon resonance frequency in a predetermin... | 03/06/2012 |
| 8127570 | Optical glass A high-refractivity low-dispersion optical glass that can be stably supplied and has excellent glass stability and that has coloring reduced, comprises, by mass %, 5 to 32% of total of SiO2 and B2O3... | 03/06/2012 |
| 8127433 | Method of manufacturing a glass substrate for magnetic disk In a manufacturing method of a glass substrate for a magnetic disk including a cleaning process of the glass substrate, the cleaning process includes a process of contacting the glass substrate with a cleaning solution containing a compound, such as thioglycolic aci... | 03/06/2012 |
| 8125515 | Endoscope system An endoscope system, including a plurality of processor devices, each of which having a detachably attached endoscope, and a controller device, which is communicably connected with the plurality of processor devices, is provided. The controller device is capable of ... | 02/28/2012 |
| 8121467 | Position controller for optical element A position controller for an optical element of an optical system includes a first movable member supported by a support member to be movable relative thereto in a first direction orthogonal to an optical axis, a second movable member which holds the optical element... | 02/21/2012 |
| 8121012 | Objective lens and optical information recording/reproducing apparatus An optical information recording/reproducing apparatus for an optical disc using a light beam having a wavelength of λ including: an objective lens that converges the light beam onto a recording surface of the optical disc and satisfies a condition: ... | 02/21/2012 |
| 8120693 | Imaging unit and mobile electronic device An imaging unit including an image sensor, an incident-side prism, an exit-side prism, and an intermediate optical system positioned therebetween, wherein light incident on the incident-side prism passes through the incident-side prism, the intermediate optical syst... | 02/21/2012 |
| 8119267 | Glass substrate for magnetic disk and manufacturing method of the same A glass substrate for a magnetic disk of the invention is a disk-shaped glass substrate for a magnetic disk where the substrate has a main surface and end face and is subjected to chemical reinforcement treatment, and is characterized in that the penetration length ... | 02/21/2012 |
| 8118734 | Endoscope illumination optical system An endoscope illumination optical system includes a surface light source, a positive first lens element, a positive second lens element, in this order from the surface light source. The endoscope illumination optical system satisfies the following conditions:... | 02/21/2012 |
| 8117936 | Gear support structure A gear support mechanism for supporting two gears and an intermediate gear which meshes with the two gears to transfer rotation of one of the two gears to the other, includes a gear-shaft support member(s) which supports a gear shaft of the intermediate gear; and a ... | 02/21/2012 |
| 8116187 | Design method of optical element and optical element through which a plurality of light beams having different design wavelengths pass A method of designing an optical element to be used for an optical system in which each of a plurality of light beams having different design wavelengths passes through the optical element is provided. The method includes determining at least two types of optical pa... | 02/14/2012 |
| 8114556 | Photomask blank and production method thereof, and photomask production method, and semiconductor device production method There are provided a photomask blank which is capable of preventing static buildup caused by electron beam pattern drawing for forming a resist pattern, a photomask blank which provides a good pattern accuracy through optimization of the dry etching rate along the d... | 02/14/2012 |
| 8110514 | Optical glass An optical glass that is an oxide glass having a very high refractive index in spite of its low-dispersion property, having excellent glass stability and having less susceptibility to coloring. ... | 02/07/2012 |
| 8110323 | Optically semitransmissive film, photomask blank and photomask, and method for designing optically semitransmissive film The present invention provides an optically semitransmissive film that has a near-zero phase shift, has a desired transmissivity, and is relatively thin; a novel phase-shift mask that uses the optically semitransmissive film; a photomask blank that can [be used to] ... | 02/07/2012 |
| 8107350 | Optical information recording/reproducing apparatus and objective lens for the same An objective lens including: a first region to respectively converge first and second light beams onto recording surfaces of first and second optical discs; and a second region located outside of the first region and configured to converge the first light beam onto ... | 01/31/2012 |
| 8107063 | Transparent article An inspection method of transparent articles wherein presence or absence of optical inhomogeneities within the transparent articles can be accurately inspected is provided. In an inspection method of transparent articles used in photolithography, for inspecting whet... | 01/31/2012 |
| 8107004 | Imaging device An imaging device includes an imaging optical system including at least one movable optical element; an image sensor, an imaging surface of which lies on an image-forming plane of the imaging optical system; a circuit board on which the image sensor is mounted; and ... | 01/31/2012 |
| 8102430 | Interchangeable lens and lens-data communication method An interchangeable lens which can communicate with an associated camera body, the interchangeable lens including an interface logic IC; and a memory connected to the interface logic IC, and stores the data of the interchangeable lens. Fixed data of the interchangeab... | 01/24/2012 |
| 8102415 | Electronic endoscope system and processor for electronic endoscope An electronic endoscope system includes an electronic endoscope, a processor connected with the electronic endoscope, and a server that performs data communication with the processor via a network. The processor sends, to the server, update request data including an... | 01/24/2012 |
| 8100904 | Treatment tool for endoscope A treatment tool for an endoscope includes a flexible sheath, with a transparent portion near a distal end thereof, which is inserted into and ejected from a treatment tool insertion channel of the endoscope, a rod-shaped treatment piece arranged into the flexible s... | 01/24/2012 |
| 8100529 | Progressive-addition lens In a progressive-addition lens having a progressive surface on one side and an aspherical or atoroidal surface on the other side, the lens shape is designed so that a high degree of aberration correction can be carried out on the periphery of the lens and the distan... | 01/24/2012 |
| 8098320 | Imaging device An imaging device includes a housing including first and second photographing apertures which are open toward opposite directions; an image pickup device provided in the housing; a main optical system forming incident light from the first photographing aperture onto... | 01/17/2012 |
