...that the inventor of the electric motor was a blacksmith named Thomas Davenport? Described as "a brilliantly unsuccessful inventor", Davenport invented the first rotary electric motor. In 1836 he headed out -- on foot -- from his Vermont home to file a patent application at the Patent Office in Washington, D.C. By the time he got there, he had squandered away his money and couldn't afford the $30 filing fee so he turned around and went home. When he later mailed in his application with money he'd raised, the Patent office was destroyed in a fire. He did finally get credit for his invention on Feb. 5, 1837.
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| Number | Title | Issue Date |
| 8182419 | Endoscope with suctioning means An endoscope comprises: an insertion portion to be inserted into a body cavity; an operation portion continuously provided from a proximal end side of the insertion portion; and a suction section that performs suction from an distal end of the insertion portion, whe... | 05/22/2012 |
| 8182115 | Light source device Disclosed is a light source device that has lower costs and lower power consumption compared to a halogen lamp, and has the same spectral characteristics as the halogen lamp. The light source device includes a white LED that emits White light having an emission peak... | 05/22/2012 |
| D660427 | Controller for endoscope | 05/22/2012 |
| 8179428 | Imaging apparatus for electronic endoscope and electronic endoscope An imaging apparatus for an electronic endoscope includes a bare chip of CCD, a circuit board with approximately the same thickness as the bare chip, and a conducting plate with no less than 1/4 width of the bare chip. The bare chip has terminals on the surface with... | 05/15/2012 |
| 8177717 | Ultrasonic endoscope An ultrasonic endoscope comprising an insertion portion including a distal hard portion. The insertion portion comprises an ultrasonic transducer arranged in the distal hard portion and a treatment equipment lead-out hole, a slant surface on which an endoscopic view... | 05/15/2012 |
| 8149287 | Imaging system using restoration processing, imaging apparatus, portable terminal apparatus, onboard apparatus and medical apparatus having the imaging system An imaging system is provided and includes an imaging lens and an imaging device such that the maximum diameter of an effective region of a point image becomes a size covering three or more pixels of light receiving pixels, the point image being projected onto a lig... | 04/03/2012 |
| 8144191 | Endoscope visual imaging and processing apparatus An endoscope apparatus comprises: a scope comprising a solid imaging device; a processor unit which forms an observation image from signals emitted from the solid imaging device, the processor being connected to the scope; and a plurality of monitors each of which i... | 03/27/2012 |
| 8121469 | Autofocus system An autofocus system includes an image pickup unit that takes a subject image formed by an optical system; an autofocus unit that performs focus adjustment on the optical system so as to bring into focus a subject within a predetermined AF area in a photographing ima... | 02/21/2012 |
| 8106992 | Automatic focusing system using a magnification or reduction optical system A taking lens 10 of an automatic focusing system of an optical path length difference type is configured so that AF object light is branched from a main optical path that guides object light to a video imaging device 26 of a camera main body 14,... | 01/31/2012 |
| 8102608 | Imaging lens, camera module, and imaging apparatus An imaging lens is provided and includes: in order from an object side of the imaging lens, a first lens having a positive power; a second lens having a negative power; a third lens having a positive power and having a convex surface on an image side thereof; and a ... | 01/24/2012 |
| 8088064 | Slidable cover for endoscope control apparatus An ultrasonic control apparatus has a connector and a connector cover. The connector cover is attached to be slidable between a close position where the connector is covered and an open position where the connector is exposed, and has a press projection. When the co... | 01/03/2012 |
| 8064319 | Objective lens, optical pickup device having the same, and recording and/or reproducing apparatus for optical recording medium, equipped with the optical pickup device An objective lens consists of a single lens element, and has a light source side surface formed into a convex surface having a large curvature and an optical recording medium side surface has a small curvature. The both surfaces are aspheric surfaces. Also, the obje... | 11/22/2011 |
| 8064143 | Variable power optical system and imaging device A variable power optical system is provided and includes: in order from the object side, a first lens group having a negative refractive power and including a negative lens group and a positive lens group; a stop; and a second lens group having a positive refractive... | 11/22/2011 |
| 8054469 | Optical probe and optical tomographic image production apparatus using the probe An optical tomographic image production apparatus includes an optical probe, in which a light-transmitting area that transmits measurement light and a light-blocking area that blocks the measurement light are formed. The light-blocking area is provided at a start po... | 11/08/2011 |
| 8038609 | Electronic endoscope apparatus and program An endoscope apparatus used in combination with a near infrared light irradiation unit that irradiates near infrared light on a target irradiation section. White light and the infrared light are irradiated on a target observation area including the target irradiatio... | 10/18/2011 |
| 8033988 | Endoscope with angled inflation channel An endoscope apparatus comprises: an endoscope comprising an insertion portion, wherein an air hole is formed at a distal end of the insertion portion; and a balloon attached to the distal end of the insertion portion, the balloon being expanded by supply of air thr... | 10/11/2011 |
| 8031288 | Polarization conversion element, polarized light illumination optical element, and liquid crystal projector A prism sheet is bonded to the bottom faces of rectangular prisms constituting a polarization beam splitter array. In the front face of the prism sheet, a plurality of rectangular prism elements are arranged in parallel to each other and a phase difference compensat... | 10/04/2011 |
| 8029147 | Projection optical system and projection display device using the same A projection optical system having a magnification side and a reduction side for forming a magnified image on a magnification side image surface conjugate with a reduction side conjugate image surface includes, arranged in order from the reduction side, a first imag... | 10/04/2011 |
| 8026971 | Visible and infrared light image-taking optical system The present invention provides a visible and infrared light image-taking optical system which can facilitate changing a wavelength of infrared light used to take an infrared video image with an infrared light camera and which can achieve an infrared video image not ... | 09/27/2011 |
| 8023189 | Retardation compensation element and manufacturing method of the same Two types of layers are simultaneously formed on a substrate and another substrate under the same layer forming condition, the heights of which are equal to a half height of an intended retardation compensation layer. Physical properties of the respective two types ... | 09/20/2011 |
| 8014090 | Lens device A lens device includes: a lens barrel body having holes; guide bars supported by the lens barrel body and one ends of the guide bars are inserted in the holes; lens holding frames supported so as to be movable along the guide bars and are engaged with the guide bars... | 09/06/2011 |
| RE42642 | Imaging lens An imaging lens comprises, in order from an object side: a first lens having a positive refractive power; a second lens having a negative refractive power whose concave surface faces to the object; and ... | 08/23/2011 |
| 7999845 | Electronic endoscope system In an electronic endoscope system, an RF signal is produced through quadrature modulation of a picture signal that is representative of an image taken through an electronic endoscope. When control signals are entered by an operator through a control section of the e... | 08/16/2011 |
| 7995291 | Image reading lens system and image reading apparatus An image reading lens system of Example 1 includes six lenses having first to sixth lenses being arranged in order from an object side and an aperture diaphragm. In the image reading lens system, the first lens, the third lens, and the sixth lens are formed of negat... | 08/09/2011 |
| 7995290 | Objective lens, optical pickup device, and optical recording/reproducing apparatus An objective lens for converging light emitted from a light source on an optical recording medium to record and reproduce information consists of a single lens having at least one aspheric surface. The following conditional expressions (1) to (3) are satisfied: ... | 08/09/2011 |
| 7995093 | Endoscope apparatus In an endoscope apparatus in which a scope is connected to a processor unit in a freely attachable and detachable way, the endoscope apparatus wherein matrix calculation is conducted for RGB signals formed by using CCD, a color space conversion processing circuit is... | 08/09/2011 |
| 7990621 | Projection lens and projection display device using the same Disclosed are a projection lens that has a simple inner focus structure, an appropriate back focal length, telecentricity, a high optical performance, and a small size and can effectively correct, particularly, lateral chromatic aberration, and a projection display ... | 08/02/2011 |
| 7986477 | Driving device and optical apparatus A driving device is provided and includes: an actuator that includes a driving shaft attached to a piezoelectric element; and a driving signal control unit. The piezoelectric element is expanded and contracted in response to a driving signal. The driving shaft is re... | 07/26/2011 |
| 7982882 | Optical wave interference measuring apparatus The relative position of a test surface is sequentially changed from a reference position where a surface central axis is aligned with a measurement optical axis such that the measurement optical axis is sequentially moved to a plurality of annular regions obtained ... | 07/19/2011 |
| 7980708 | Document presentation device including a movable part A document presentation device comprising an imaging unit that takes images of documents and a display unit that displays the images of documents taken by the imaging unit. ... | 07/19/2011 |
| 7978968 | Auto focus device Disclosed is an auto focus device that automatically and easily sets an AF frame to a focus range desired by a cameraman in an AF system. An auto focus device includes: a focusing unit that performs focusing on an imaging screen of a camera; a best focus rang... | 07/12/2011 |
| 7978335 | System for producing tomographic image by optical tomography In optical tomography measurement using light, the wavelength of which is periodically swept, interference light between reflection light and reference light is split into first interference light and second interference light by a light splitting means. The optical... | 07/12/2011 |
| 7965878 | Endoscopic system with spectral image forming circuit An endoscopic system that processes a color image data of a subject from an imager mounted on an endoscope and records the processed image data in an image recorder/display unit, the endoscopic system comprising: a storage that stores matrix data for forming a spect... | 06/21/2011 |
| 7962029 | Auto focus system having AF frame auto-tracking function Disclosed is an auto focus system having an auto focus (AF) frame auto-tracking function that detects the image of an object to be tracked as an AF target using a pattern matching process and moves an AF frame indicating an AF target range to the position of the obj... | 06/14/2011 |
| 7961243 | Camera unit and imaging apparatus A camera unit 100 is provided and includes an imaging device for receiving light of an optical image incident from a lens unit; a support board for supporting the imaging device; and a holder having an attachment part to which the support board is attached. T... | 06/14/2011 |
| 7960898 | Driving apparatus, lens driving apparatus and image pickup apparatus A driving apparatus comprises an actuator, the actuator comprising an electromechanical conversion element and a driving shaft attached to the electromechanical conversion element, wherein the driving apparatus expands and contracts the electromechanical conversion ... | 06/14/2011 |
| 7957074 | Imaging lens system and imaging apparatus using the imaging lens system An imaging lens system is provided an includes: in order from the object side, a first lens which has a negative power; a second lens which has a negative power; a third lens; a fourth lens which has a positive power; a fifth lens; and a sixth lens which has a posit... | 06/07/2011 |
| 7952613 | Image blur correcting unit, image blur correcting device, image pickup apparatus and portable equipment In the image blur correcting unit, one end of a flexible board is connected to a sensor board included in a holding module, and the portion of the flexible board that extends at least first from the sensor board extends outwardly from the holding module in a directi... | 05/31/2011 |
| 7946993 | Ultrasonic endoscope An ultrasonic endoscope comprises an insertion portion including: an angle portion; a hard distal portion; an endoscopic observation unit comprising a lighting portion and an observation portion; and an ultrasonic test unit comprising an ultrasonic transducer consti... | 05/24/2011 |
| 7933075 | Variable-power optical system and imaging apparatus The variable-power optical system is provided and includes a first lens group having a negative refractive power, a stop, and a second lens group having a positive refractive power, in order from an object side. The first lens group includes a first sub lens group h... | 04/26/2011 |