Patent application number | Description | Published |
20090155580 | Production Methods of Semiconductor Crystal and Semiconductor Substrate - To provide a semiconductor substrate of high quality suitable for fabricating an electronic device or an optical device. The present invention provides a method for producing a semiconductor substrate for an electronic device or an optical device, the method including reacting nitrogen (N) with gallium (Ga), aluminum (Al), or indium (In), which are group III elements, in a flux mixture containing a plurality of metal elements selected from among alkali metals and alkaline earth metals, to thereby grow a group III nitride based compound semiconductor crystal. The group III nitride based compound semiconductor crystal is grown while the flux mixture and the group III element are mixed under stirring. At least a portion of a base substrate on which the group III nitride based compound semiconductor crystal is grown is formed of a flux-soluble material, and the flux-soluble material is dissolved in the flux mixture, at a temperature near the growth temperature of the group III nitride based compound semiconductor crystal, during the course of growth of the semiconductor crystal or after completion of growth of the semiconductor crystal. | 06-18-2009 |
20100301358 | Semiconductor Substrate, Electronic Device, Optical Device, and Production Methods Therefor - The present invention provides a method for producing a semiconductor substrate, the method including reacting nitrogen (N) with gallium (Ga), aluminum (Al), or indium (In), which are group III elements, in a flux mixture containing a plurality of metal elements selected from among alkali metals and alkaline earth metals, to thereby grow a group III nitride based compound semiconductor crystal. The group III nitride based compound semiconductor crystal is grown while the flux mixture and the group III element are mixed under stirring. At least a portion of a base substrate on which the group III nitride based compound semiconductor crystal is grown is formed of a flux-soluble material, and the flux-soluble material is dissolved in the flux mixture, at a temperature near the growth temperature of the group III nitride based compound semiconductor crystal, during the course of growth of the semiconductor crystal. | 12-02-2010 |
20120032468 | SUPPORT STRUCTURE OF WINDSHIELD - A support structure of a windshield of the present invention comprises a frame having an open section opening forward in a vehicle and a support member provided inside the frame and connecting an upper face portion and a lower face portion of the frame. The frame has a windshield support portion supporting a lower side portion of the windshield at part of the upper face portion. The support member includes a rear support portion attached to the upper face portion of the frame and a front support portion attached to a cowl panel at a specified location positioned in front of the rear support portion. The windshield support portion is positioned between the front and rear support portions in the vehicle longitudinal direction. | 02-09-2012 |
Patent application number | Description | Published |
20090230573 | Gas Dissolving Apparatus - A dissolving apparatus has a cylindrical tubular container closed at both ends with its center axis being inclined to the horizon. A center of an interface between a gas and a liquid in the container is positioned at a center in a lengthwise direction of a side wall of the container. Two inner spaces of the container above and below the interface are referred to as a gas section and a liquid section. An injection inlet for injecting a gas-liquid mixed fluid into the container is provided at a level corresponding to, or lower than, the interface. A liquid outlet for discharging the liquid is provided near a bottom of the liquid section of the container. Since the container is inclined, the interface can have an area large enough to promote dissolution of the gas into the liquid. Since the depth of the liquid in the liquid section is sufficiently deep, the liquid can be prevented from being discharged through the liquid outlet with large gas bubbles being present therein. | 09-17-2009 |
20110267660 | IMAGE READING APPARATUS AND IMAGE FORMING APPARATUS PROVIDED WITH THE SAME - An image reading apparatus includes:
| 11-03-2011 |
20120045170 | OPTICAL WAVEGUIDE FOR TOUCH PANEL - An optical waveguide for a touch panel is capable of causing light beams emitted from a light-emitting optical waveguide section to enter a light-receiving optical waveguide section even when warpage or distortion occurs. Edges of an over cladding layer covering an end surface of a core for emitting a light beams and an end surface of a core for receiving the light beams respectively are configured in the form of light-emitting and light-receiving lens portions each having an outwardly-bulging arcuately curved surface as seen in vertical sectional view. The light-emitting lens portion has one of the following configurations: a configuration in which a light beam emitted from the light-emitting lens portion is adapted to diffuse in the direction of the height of the light-emitting lens portion; and a configuration in which the height of the light-emitting lens portion is less than that of the light-receiving lens portion. | 02-23-2012 |
20120099818 | OPTICAL WAVEGUIDE FOR TOUCH PANEL - The optical waveguide is disposed along the periphery of a display screen of a display of a touch panel. A light-emitting optical waveguide section and a light-receiving optical waveguide section are disposed in an alternating pattern along each edge of the display screen. Both of the light-emitting optical waveguide section and the light-receiving optical waveguide section are coupled together by placing end surfaces of end portions of the light-emitting optical waveguide section and the light-receiving optical waveguide section in abutment with each other. The light-emitting optical waveguide section includes cores each having an end portion provided in the form of a light-emitting lens portion. The light-emitting lens portion has an end surface provided in the form of a light-emitting lens surface. The light-receiving optical waveguide section includes cores each having an end portion provided in the form of a light-receiving lens portion corresponding to the light-emitting lens portion. | 04-26-2012 |
20120107517 | METHOD OF MANUFACTURING OPTICAL WAVEGUIDE FOR TOUCH PANEL - A method of manufacturing an optical waveguide for a touch panel is provided which achieves a small dimensional change due to heat to provide precise formation positions of a cladding layer and cores on a substrate. The method includes: selecting an elongated substrate made of stainless steel to continuously apply a first photosensitive resin composition; heating the first photosensitive resin composition to volatilize a solvent therein; irradiating the first photosensitive resin composition to form the cladding layer; continuously applying a second photosensitive resin composition; heating the second photosensitive resin composition to volatilize a solvent therein; and irradiating the second photosensitive resin composition with irradiation light through a photomask to expose the second photosensitive resin composition to the irradiation light, and thereafter dissolving away unexposed portions of the second photosensitive resin composition by using a developing solution. | 05-03-2012 |
20120164313 | METHOD OF MANUFACTURING OPTICAL WAVEGUIDE - A method of manufacturing an optical waveguide is provided which enables a recognition device such as a CCD camera to easily recognize an alignment mark for positioning a mold for over cladding layer formation. The method includes the steps of: forming protruding cores and a protruding alignment mark on an upper surface of an under cladding layer on a substrate by a photolithographic method; and forming the over cladding layer by use of the mold positioned using the alignment mark as a guide. For the formation of the alignment mark, a photomask is used which has an opening pattern for alignment mark formation including an opening, and a light transmission amount reduction region provided around the opening and having an aperture ratio within a range greater than 10% and less than 80%. The alignment mark is formed to have a peripheral side surface in the form of an inclined surface. | 06-28-2012 |
20130009911 | UNDERLAY-BOARD-EQUIPPED INPUT DEVICE - An underlay-board-equipped input device is provided which is capable of preventing positional displacement of a writing paper sheet when a user is writing on the set writing paper sheet and when the writing paper sheet is set again. An underlay board is mounted to the back surface of a rectangular frame-shaped input device having a rectangular hollow input-use interior pivotably about one end edge of the input device. The input device includes a rectangular frame-shaped optical waveguide having the hollow input-use interior. A means for positioning a writing paper sheet (such as protrusions) is provided on the front surface of the underlay board. The front surface of the underlay board and the back surface of the input device are configured to form a holding part for holding the writing paper sheet therebetween. | 01-10-2013 |
20140198357 | IMAGE READING DEVICE AND IMAGE FORMING APPARATUS THEREWITH - An image reading device has an optical unit, a pair of rail portions, and a driving device. The optical unit reads an image on the document. The pair of rail portions support the optical unit such that this is slidable in the sub scanning direction. The driving device enables the optical unit to move in the sub scanning direction. The driving device engages with the optical unit substantially at the position of its center of gravity in the main scanning direction, and the pair of rail portions are arranged one on each of one and the other sides in the main scanning direction so as to be equidistant from the position of the center of gravity. | 07-17-2014 |
20140293584 | DISPLAY DEVICE AND IMAGE FORMING APPARATUS - A display device includes a light source and a light-transmissive display plate. The display plate is disposed at the light-emitting side of the light source. The display plate has an inner surface facing toward the light source and an outer surface facing away from the inner surface. The inner surface and the outer surface of the display plate each have a grain finish. The grain finish on the outer surface is finer in grain roughness than the grain finish on the inner surface. | 10-02-2014 |
Patent application number | Description | Published |
20120177320 | OPTICAL WAVEGUIDE FOR TOUCH PANEL AND TOUCH PANEL USING THE SAME - Provided are an optical waveguide for a touch panel which has high light-gathering power on a light-emitting side and which may materialize a touch panel having excellent position detection performance, and a touch panel using the optical waveguide. The optical waveguide for a touch panel includes: cores; and an over cladding layer covers the cores, the cores including light-emitting cores each formed as a lens portion having a shape in plan view including a tapered portion whose width gradually increases toward an end surface on the light-emitting side and an elliptical arc portion which bulges outwardly a tip side of the tapered portion having the gradually-increasing width so as to be in a shape of an elliptical arc, the elliptical arc portion having a major axis direction aligned in a longitudinal direction of the tapered portion. | 07-12-2012 |
20130048834 | INPUT DEVICE - The input device includes a frame-shaped optical waveguide having a hollow input-use interior, and a control means provided on the outside of one of the sides of the optical waveguide. The optical waveguide and the control means are provided on a surface of a frame-shaped retainer plate. The control means includes: a light-emitting element connected to ends of light-emitting cores of the optical waveguide; a light-receiving element connected to ends of light-receiving cores of the optical waveguide; and a CPU incorporating a program. Upon sensing a first light-shielded area where light is intercepted by the tip of a pen and a second light-shielded area where light is intercepted by user's hand that holds the pen, the program recognizes the second light-shielded area larger than the first light-shielded area as unnecessary information, based on a difference in light-shielded area. | 02-28-2013 |
20130077918 | INPUT DEVICE - An input device is provided which prevents unwanted light beams leaking through the ending end surface of a light-emitting main core from reaching a light-receiving element. The input device includes an optical waveguide having a rectangular hollow interior, a light-emitting element connected to the starting end of the light-emitting main core, and a light-receiving element connected to the ending ends of light-receiving cores. The light-receiving element is positioned close to the ending end of the light-emitting main core. A void (an air space) is provided between the ending end of the light-emitting main core and the light-receiving element. The air space causes unwanted light beams leaking through the ending end surface of the light-emitting main core to diffuse, thereby preventing the unwanted light beams from reaching the light-receiving element. | 03-28-2013 |
20130087691 | INPUT DEVICE - An input device capable of lowering the vertical position of light beams traveling within the frame of a frame-shaped optical waveguide without using optical path conversion is provided. The input device includes a light-emitting module incorporating a light-emitting element connected to light-emitting cores of the optical waveguide, and a light-receiving module incorporating a light-receiving element connected to light-receiving cores of the optical waveguide. A section of the optical waveguide on a light-receiving side, in which the light-receiving cores are formed, is placed upside down so that an over cladding layer is positioned on the underside. Accordingly, the light-receiving module is also placed upside down. Thus, the light-receiving module protrudes along the height thereof in such a manner that the amount of downward protrusion is less than the amount of upward protrusion. | 04-11-2013 |
Patent application number | Description | Published |
20130256743 | PRODUCTION METHOD FOR GROUP III NITRIDE SEMICONDUCTOR AND GROUP III NITRIDE SEMICONDUCTOR - A method for producing a Group III nitride semiconductor comprising forming mesas on a main surface of a substrate, and growing Group III nitride semiconductor in a c-axis direction thereof, wherein the plane most parallel to the side surfaces of the mesas or the dents among the low-index planes of growing Group III nitride semiconductor is a m-plane (1-100), and when a projected vector obtained by orthogonally projecting a normal vector of the processed side surface to the main surface is defined as a lateral vector, an angle between the lateral vector and a projected vector obtained by orthogonally projecting a normal vector of the m-plane of the growing Group III nitride semiconductor to the main surface is 0.5° or more and 6° or less. | 10-03-2013 |
20130260541 | METHOD FOR PRODUCING Ga-CONTAINING GROUP III NITRIDE SEMICONDUCTOR - A method for producing a Ga-containing group III nitride semiconductor having reduced threading dislocation is disclosed. A buffer layer in a polycrystal, amorphous or polycrystal/amorphous mixed state, comprising AlGaN is formed on a substrate. The substrate having the buffer layer formed thereon is heat-treated at a temperature higher than a temperature at which a single crystal of a Ga-containing group III nitride semiconductor grows on the buffer layer and at a temperature that the Ga-containing group III nitride semiconductor does not grow, to reduce crystal nucleus density of the buffer layer as compared with the density before the heat treatment. After the heat treatment, the temperature of the substrate is decreased to a temperature that the Ga-containing group III nitride semiconductor grows, the temperature is maintained, and the Ga-containing group III nitride semiconductor is grown on the buffer layer. | 10-03-2013 |
20140353804 | Method for Producing Group III Nitride Semiconductor and Group III Nitride Semiconductor - A first side surface of post of the first stripe is formed so that a plane which is most parallel to the first side surface among low-index planes of the growing Group III nitride semiconductor is a m-plane (10-10), and a first angle between the first lateral vector obtained by orthogonally projecting a normal vector of the first side surfaces to the main surface and a m-axis projected vector obtained by orthogonally projecting a normal vector of the m-plane of the growing semiconductor to the main surface is from 0.5° to 6°. A second side surface of post of the second stripe is formed so that a plane which is most parallel to the second side surface among low-index planes of the growing semiconductor is an a-plane (11-20), and a second angle between the second lateral vector and an a-axis projected vector of the a-plane is from 0° to 10°. | 12-04-2014 |
Patent application number | Description | Published |
20130121741 | DOCUMENT COVER, IMAGE READER HAVING DOCUMENT COVER, AND IMAGE FORMING APPARATUS - A document cover covers a document platen of a housing. The document cover has a cover frame, a document pressing part, and a hinge. The hinge has a first member and a second member. The first member has a rotating shaft and a first fixed part that is mounted on one of the cover frame and the housing. The second member has a fitted part that is fitted rotatably to the rotating shaft, and a second fixed part, which is mounted on the other of the cover frame and the housing. The first member and the second member can change states thereof between a first state in which the first member and the second member can be attached to or detached from each other, and a second state in which the first member and the second member are prevented from being detached from each other. | 05-16-2013 |
20130215477 | IMAGE READING DEVICE FOR READING DOCUMENT IMAGE AND IMAGE FORMING APPARATUS INCLUDING SAME - An image reading device includes a case, a reading section, an engaging section, a guide section, a first deformation characteristic section, and a second deformation characteristic section. The case includes a bottom plate. The reading section moves in a sub-scanning direction. The guide section guides movement of the reading section. When the bottom plate is divided into a first region and a second region with the guide section as a boundary, the first deformation characteristic section is arranged in the first region, and has a deformation characteristic such that the first deformation characteristic section deforms with respect to heat in a first direction that is perpendicular to the bottom plate. The second deformation characteristic section is arranged in the second region, and has a deformation characteristic such that the second deformation characteristic section deforms with respect to heat in a second direction which is opposite to the first direction. | 08-22-2013 |