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"I watched his countenance closely, to see if he was not deranged ... and I was assured by other senators after he left the room that they had no confidence in it."
U.S. Senator Smith of Indiana ; After seeing Samuel Morse demonstrate the telegraph.
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| Number | Title | Issue Date |
| 8320228 | Near-field optical head having tapered hole for guiding light beam A near-field optical head has a planar substrate having a first surface, a second surface disposed opposite to the first surface, and an inverted pyramidal hole extending through the first and second surfaces. The inverted pyramidal hole has at least one fine apertu... | 11/27/2012 |
| 8289819 | Information reproducing apparatus and information reproducing method An information reproducing apparatus has a medium with a linear tracking mark extending in a scanning direction and a linear data mark extending in a direction orthogonal to the scanning direction. A light control unit irradiates the data mark with a first near-fiel... | 10/16/2012 |
| 7922938 | Fine silver particle colloidal dispersion, coating liquid for silver film formation, processes for producing these, and silver film A process for producing a fine silver particle colloidal dispersion the fine silver particles of which have a larger average particle diameter than those in the conventional Carey-Lea process and also which has superior dispersion stability. An aqueous silver nitrat... | 04/12/2011 |
| 7786178 | Process for producing fine silver particle colloidal dispersion, fine silver particle colloidal dispersion, and conductive silver film A process for producing a fine silver particle colloidal dispersion which can simply form conductive silver layers and antimicrobial coatings by screen printing or the like. The process is characterized by having a reaction step of allowing an aqueous silver nitrate... | 08/31/2010 |
| 7630287 | Near field optical head and optical recording device The object of the present invention is to provide an information recording/reproduction device for implementing high-density information recording and reading using mutual interaction of a recording medium with near field light, and particularly to a near field opti... | 12/08/2009 |
| 7602692 | Near-field optical probe for reproducing information on a recording medium using near-field light A near-field optical probe has a planar substrate formed with a through-hole and a phase shifter layer translucent to light having a wavelength of illumination light used to illuminate the substrate for producing near-field light. The phase shifter layer is effectiv... | 10/13/2009 |
| 7599277 | Near-field optical head having tapered hole for guiding light beam A near-field optical head has a planar substrate having a first surface, a second surface disposed opposite to the first surface, and an inverted conical or pyramidal hole extending through the first and second surfaces. The conical or pyramidal hole has at least on... | 10/06/2009 |
| 7525880 | Near-field information reproducing apparatus and near-field information reproducing method An information reproducing apparatus has a light source for generating linearly polarized light, a medium having linear marks disposed in overlapping relation to one another, and an optical head disposed between the light source and the medium and having a fine aper... | 04/28/2009 |
| 7496250 | Optical microcantilever An optical microcantilever for a scanning near field microscope comprises a support section, a cantilever-shaped optical waveguide, and a light blocking wall. The optical waveguide has a free end, a fixed end fixed to the support section and terminating in a light i... | 02/24/2009 |
| 7366060 | Method for forming optical aperture, near-field optical head, method for fabricating near-field optical head, and information recording/reading apparatus A near-field optical head has a main surface confronting a recording medium during use of the near-field optical head. A sharpened tip is disposed on the main surface and has an optical aperture at a front end thereof. An opaque film covers the sharpened tip and has... | 04/29/2008 |
| 7301888 | Recording apparatus In a recording apparatus for reproducing information recorded on a recording medium by utilizing near-field light, the recording apparatus realizes reliable information reproduction with a simple structure. Illumination light 20 is illuminated to the recordin... | 11/27/2007 |
| 7294895 | Capacitive dynamic quantity sensor and semiconductor device A capacitive dynamic quantity sensor whose size is small and whose reliability and mass productivity are high is provided. In order to realize signal transmission from a lower electrode to an upper electrode, silicon columns which are electrically isolated from one ... | 11/13/2007 |
| 7240541 | Optical microcantilever, manufacturing method thereof, and optical microcantilever holder An optical microcantilever capable of reducing loss when propagating light. An optical microcantilever 10 comprises a support 1, an optical waveguide 2, a light-blocking film 3, a reflecting film 4, a pointed tip 5, a micros... | 07/10/2007 |
| 7225675 | Capacitance type dynamic quantity sensor A capacitance type dynamic quantity sensor has a first substrate, a second substrate disposed over the first substrate, and first and second electrodes each disposed on a main surface of a respective one of the first and second substrates. Each of the first and seco... | 06/05/2007 |
| 7224193 | Current-voltage conversion circuit A CV conversion circuit capable of measuring a plurality of capacitances with a simple circuit is provided. A time-division signal is applied to each capacitor, whereby a plurality of capacitances of the capacitors can be measured in series by a circuit with a small... | 05/29/2007 |
| 7216541 | Capacitive sensor for dynamical quantity A capacitive sensor for measuring a dynamical quantity based on a change in capacitance has a semiconductor substrate having a weight supported by beams so as to undergo displacement according to the dynamical quantity. The semiconductor substrate is sandwiched betw... | 05/15/2007 |
| 7150185 | Optical microcantilever An optical microcantilever for a scanning near field microscope has an optical waveguide for propagating light. The optical waveguide has a longitudinal axis, a light input/output end, a free end opposite to the light input/output end, and a tip formed at the free e... | 12/19/2006 |
| 7057998 | Near-field optical head A near-field optical head applied for a head of an information recording/reading apparatus for realizing information recording and reading with high density recording medium at high speed and with reliability through interaction between a near-field light and a reco... | 06/06/2006 |
| 7054255 | Near field information recording/reproduction apparatus having waveguide with reflection surface A near-field optical head has a minute structure formed in the support member for interacting with a recording medium via near-field light. An optical waveguide is provided on the support member for guiding light between a light source and the minute structure. The ... | 05/30/2006 |
| 7054239 | Recording medium, information recording device, and information reproducing device An information recording medium comprises a read-out track having a data region forming data bits for reproduced data and a servo pattern region forming servo bits for tracking control. The servo bits have a first groove that is deep in a direction perpendicular to ... | 05/30/2006 |
| 7042829 | Recording apparatus In a recording apparatus for reproducing information recorded on a recording medium by utilizing near-field light, the recording apparatus realizes reliable information reproduction with a simple structure. Illumination light 20 is illuminated to the recordin... | 05/09/2006 |
| 7034277 | Near-field light-generating element for producing localized near-field light, near-field optical recording device, and near-field optical microscope A near-field light-generating element has a support member and a minute aperture having a size smaller than the wavelength of incident light provided on the support member so as to produce near-field light in response to incident light directed thereto. The minute a... | 04/25/2006 |
| 7032427 | Method for forming optical aperture, near-field optical head, method for fabricating near-field optical head, and information recording/reading apparatus In a method of producing an optical aperture, there is provided an object having a substrate, at least one conical- or pyramidal-shaped tip disposed on the substrate, at least one stopper disposed on the substrate in the vicinity of the tip and having a height subst... | 04/25/2006 |
| 7010949 | Apparatus for forming optical aperture An apparatus for forming an optical aperture comprises an object having a tip with a pointed end. Stoppers are disposed adjacent the tip. A pressing body applies a loading force to press the pointed end of the tip and at least a part of each of the stoppers to form ... | 03/14/2006 |
| 6934440 | Optical switch and optical switch device An optical switch has at least first, second, and third optical fibers disposed generally parallel to each other and spaced at non-equal intervals in a direction substantially perpendicular to an optical axis of each of the optical fibers. The optical fibers have ti... | 08/23/2005 |
| 6914873 | Recording apparatus In a recording apparatus for reproducing information recorded on a recording medium by utilizing near-field light, the recording apparatus realizes reliable information reproduction with a simple structure. Illumination light 20 is illuminated to the recordin... | 07/05/2005 |
| 6856473 | Method of fabricating optical aperture and method of fabricating probe for near field light device An optical aperture is fabricated by providing a pressing body and object having a substrate, at least one conical- or pyramidal-shaped tip disposed on the substrate, at least one stopper disposed on the substrate at a vicinity of the tip, and an optical shielding f... | 02/15/2005 |
| 6842558 | Optical switch manufacturing method thereof There is disclosed an optical switch consisting of a support substrate, a movable raw optical fiber, a fixed raw optical fiber, a magnetic member for the movable raw optical fiber, and a leaf spring. The fibers are disposed in a V-shaped groove formed in the substra... | 01/11/2005 |
| 6834537 | Optical microcantilever An optical microcantilever has an optical waveguide for propagating light. The optical waveguide has a first side, a second side opposite to the first side, and a tip portion formed on the first side and at a free end of the optical waveguide. The tip portion has a ... | 12/28/2004 |
| 6831887 | Recording medium having information reproducible using near-field light A recording medium stores information that is reproducible utilizing near-field light. A phase shift arrangement layer is formed with alternately arranged phase shifter regions for shifting incident light by 180 degrees and transmission regions that are transparent ... | 12/14/2004 |
| 6785201 | Optical information recording and reading apparatus It is an optical information recording and reading apparatus for recording and/or reading information at a high density by using a near-field light-generating device as a near-field optical head. The end surface of the core of a flexible optical waveguide is formed ... | 08/31/2004 |
| 6768095 | Near-field optical probe having cantilever and probe formed of transparent material, method for manufacturing near-field optical probe, and optical apparatus having near-field optical probe A near-field optical probe has a cantilever formed of a transparent material and having a first main surface and a second main surface opposite the first main surface. A base supports the cantilever at the first main surface. A tip extends from the second main surfa... | 07/27/2004 |
| 6747265 | Optical cantilever having light shielding film and method of fabricating the same An optical cantilever for an SNOM has a base portion, a cantilever portion extending from the base portion and having a hole formed proximate a distal end thereof, a dielectric member extending through the hole and having a sharpened tip at a first end projecting ou... | 06/08/2004 |
| 6744030 | Optical waveguide probe and manufacturing method of the same, and scanning near-field optical microscope An optical waveguide probe is disclosed which is used for a scanning near-field optical microscope, has a low light propagation loss, and is capable of performing an AFM operation, and a manufacturing method thereof is disclosed. The vicinity of the tip of an optica... | 06/01/2004 |
| 6744708 | Near-field optical head A near-field optical head capable of rapid recording and/or reproducing of the information is provided. The near-field optical head condenses the light from the light source and irradiates the light on the minute opening 1. Then, by means of detecting the ref... | 06/01/2004 |
| 6738338 | Near-field optical head, method of fabricating same, and optical drive using same There is disclosed a near-field optical head having an microscopic aperture whose size can be varied. The optical head comprises a substrate of silicon. A hole in the form of an inverted cone is formed in the substrate. The top portion of this hole forms the microsc... | 05/18/2004 |
| 6724718 | Near field optical head and method for manufacturing thereof A near-field optical head has a slider having a minute aperture for emitting near-field light. The minute aperture has a diameter equal to or less than a wavelength of visible light. The slider is supported by a suspension arm for exerting a load, receiving a floati... | 04/20/2004 |
| 6716480 | Transparent conductive layered structure and method of producing the same, coating liquid for forming transparent coating layer and coating liquid for forming transparent conductive layer The present invention relates to a transparent conductive layered structure which comprises a transparent substrate, a transparent conductive layer and a transparent coating layer formed successively in this order on the substrate, and is used in, for instance, the ... | 04/06/2004 |
| 6712998 | Process for producing transparent conductive layer forming coating liquid A process produces a transparent conductive layer forming coating liquid by combining a colloidal dispersion of fine silver particles, a reducing agent and at least one of an alkali metal aurate solution and/or an alkali metal platinate solution to obtain a colloida... | 03/30/2004 |
| 6697322 | Recording medium, optical recording device utilizing recording medium, and method of manufacturing recording medium A recording medium for recording and reproducing information utilizing near field light has a transparent substrate and a data mark arrangement layer disposed over a surface of the transparent substrate. A metal particulate is dispersed only in the data m... | 02/24/2004 |
