| Patent Number |
Title Of Patent |
Date Issued |
| 7416306 |
Laser projector |
August 26, 2008 |
| A reflection-type laser projector (100) projects modulated laser beams outputted from a laser projection unit (40), on a screen, wherein a reflector (112) as a constituent of the screen (110) has reflection characteristics of reflecting, among the incident light, only laser beams of |
| 7382811 |
Optical device, laser beam source, laser apparatus and method of producing optical device |
June 3, 2008 |
| After forming domain inverted layers 3 in an LiTaO.sub.3 substrate 1, an optical waveguide is formed. By performing low-temperature annealing for the optical wavelength conversion element thus formed, a stable proton exchange layer 8 is formed, where an increase in refractive index g |
| 7356056 |
Coherent light source and control method thereof, and display unit and laser display using them |
April 8, 2008 |
| In a display device that displays a video by scanning coherent light across a screen, modulation at high speeds and gradation are necessary for a coherent light source.An oscillation wavelength of a semiconductor laser outputting the fundamental wave is changed at high speeds through |
| 7354340 |
Louver apparatus |
April 8, 2008 |
| A louver apparatus includes a case member, a connecting member, and a louver pivotally secured to the case member, including a shaft portion including a shaft body being in the form of a substantially cylindrical shape, and a head portion being in the form of a substantially regular |
| 7339960 |
Optical device, laser beam source, laser apparatus and method of producing optical device |
March 4, 2008 |
| After forming domain inverted layers 3 in an LiTaO.sub.3 substrate 1, an optical waveguide is formed. By performing low-temperature annealing for the optical wavelength conversion element thus formed, a stable proton exchange layer 8 is formed, where an increase in refractive index g |
| 7316283 |
Automatic transmission controller for hybrid vehicle |
January 8, 2008 |
| An automatic transmission controller for a hybrid vehicle of the present invention is used for the hybrid vehicle being a four-wheel drive vehicle and including an engine and a generator motor on a front wheel side of the hybrid vehicle and a traction motor on a rear wheel side of the |
| 7304880 |
Electric switch and memory device using the same |
December 4, 2007 |
| An electric switch includes a ferroelectric substrate to which metal is added, a pair of electrodes provided on the ferroelectric substrate, and an electric field applying portion for changing the direction of polarization in part of the ferroelectric substrate. |
| 7295742 |
Optical element and method for producing the same |
November 13, 2007 |
| An optical element is provided that includes a base substrate, a waveguide substrate, and a thin film layer that is provided between the base substrate and the waveguide substrate and that has a single-layer structure of a multilayer structure including a film containing Ta.sub.2O.su |
| 7295583 |
Optical device, laser beam source, laser apparatus and method of producing optical device |
November 13, 2007 |
| After forming domain inverted layers 3 in an LiTaO.sub.3 substrate 1, an optical waveguide is formed. By performing low-temperature annealing for the optical wavelength conversion element thus formed, a stable proton exchange layer 8 is formed, where an increase in refractive index g |
| 7271962 |
Two-dimensional image formation apparatus |
September 18, 2007 |
| A two-dimensional image formation apparatus according to the present invention is provided with laser sources (1a).about.(1c), diffusers (6a).about.(6c) for diffusing light, illumination optical systems for irradiating the diffusers (6a).about.(6c) with lights emitted from the laser |
| 7236674 |
Optical waveguide device, coherent light source using the same and optical apparatus having the |
June 26, 2007 |
| An optical waveguide device has a substrate composed of a nonlinear optical material and a periodically domain-inverted structure having the same composition as the nonlinear optical material, where the domain-inverted structure has a refractive index distribution relying on the doma |
| 7216943 |
Hybrid vehicle |
May 15, 2007 |
| A hybrid vehicle is capable of performing regenerative operations of generator-motors disposed adjacently to front wheels and/or rear wheels of the vehicle so as to achieve efficient conversion of kinetic energy of the vehicle into electric energy as much as possible when the vehicle |
| 7215476 |
Optical pickup, optical information recording/reproducing apparatus using the same, and phase va |
May 8, 2007 |
| Laser beams respectively emitted from a SHG blue laser unit and a red semiconductor laser unit that have photo detectors respectively are turned into parallel lights by a collimator lens and then coupled by a dielectric multi-layer film mirror so as to be propagated on the same optic |
| 7171094 |
Optical waveguide device, optical waveguide laser using the same and optical apparatus equipped |
January 30, 2007 |
| An optical waveguide device includes a waveguide layer that converts a wavelength of incident light and emits converted light. In the waveguide layer, a ridge waveguide and slab waveguides are provided, the slab waveguides being formed on both sides of the ridge waveguide with recess |
| 7154837 |
Optical pickup and optical information recording/reproducing device |
December 26, 2006 |
| An optical pickup and an optical information recording/reproducing device are provided, each of which is capable of forming a super-resolution spot to conduct micro-mark recording, and does not undergo signal degradation due to an increased sidelobe in a reproducing operation. A variable |
| 7139233 |
Optical information processing device and recording medium |
November 21, 2006 |
| An optical information processing device is provided with a multi-wavelength light source that emits light of two or more different wavelengths, a filter portion that separates the light emitted from the multi-wavelength light source according to wavelength, and a condensing lens tha |
| 7133428 |
Optical apparatus and method for producing the same |
November 7, 2006 |
| A light generating apparatus includes: a submount; a semiconductor laser chip mounted on the submount; a substrate which is mounted on the submount and includes an optical waveguide; and a substance having a predetermined thickness which is disposed between the semiconductor laser ch |
| 7103076 |
Ultrashort pulsed laser and optical head using the same |
September 5, 2006 |
| An ultrashort pulsed laser device includes: a pump laser diode having linear polarization; a solid laser medium oscillating with linear polarization; an optical fiber maintaining a polarization direction; and a saturable absorber mirror. The solid laser medium is disposed between the |
| 7101723 |
Optical device, laser beam source, laser apparatus and method of producing optical device |
September 5, 2006 |
| After forming domain inverted layers 3 in an LiTaO.sub.3 substrate 1, an optical waveguide is formed. By performing low-temperature annealing for the optical wavelength conversion element thus formed, a stable proton exchange layer 8 is formed, where an increase in refractive index g |
| 7082146 |
Device and method for inspecting wavelength-variable semiconductor laser, and method for inspect |
July 25, 2006 |
| A method for easily and quickly evaluating the wavelength variability properties of a wavelength-variable semiconductor laser is provided. An inspection device includes a power source for supplying current to a wavelength-variable DBR semiconductor laser having an active region, a ph |
| 7065035 |
Optical multilayer disk, multiwavelength light source, and optical system using them |
June 20, 2006 |
| When a wavelength of a first laser beam with which a first recording medium including a first recording layer is recorded and reproduced is indicated as .lamda.1 (nm), a wavelength of a second laser beam with which a second recording medium including a second recording layer is recor |
| 7041030 |
Hydraulic control apparatus for hybrid vehicle |
May 9, 2006 |
| A hydraulic control apparatus for a hybrid vehicle, which enables a smooth torque transmission when an engine of the vehicle is started from an idling stop state. The hydraulic control apparatus includes an engine and a motor as power sources, a transmission having a torque converter, a |
| 7040433 |
Drive control apparatus for hybrid vehicle |
May 9, 2006 |
| A rotational shaft receives drive power from an engine and a first motor, and drives front wheels through front clutches. A second motor drives rear wheels. The first motor and the second motor are supplied with electric power from a battery. A main ECU controls an electric vehicle m |
| 7035192 |
Optical pickup, optical information recording/reproducing apparatus using the same, and phase va |
April 25, 2006 |
| Laser beams respectively emitted from a SHG blue laser unit and a red semiconductor laser unit that have photo detectors respectively are turned into parallel lights by a collimator lens and then coupled by a dielectric multi-layer film mirror so as to be propagated on the same optic |
| 7010006 |
Light source apparatus and its control method |
March 7, 2006 |
| A light source device can attain a stable output of a harmonic even when there occurs a change in the ambient temperature or fluctuation in the output power. The light source device is provided with a semiconductor laser source (4), an optical waveguide-type QPM-SHG device (5) for ge |
| 6958967 |
Holographic optical information recording/reproducing device |
October 25, 2005 |
| An optical information recording/reproducing device reproduces digital data recorded in a form of interference fringes produced by two coherent beams in a hologram disk, by projecting a coherent beam to the hologram disk and receiving a reproduction signal beam obtained by diffraction by |
| 6914918 |
Optical device, laser beam source, laser apparatus and method of producing optical device |
July 5, 2005 |
| After forming domain inverted layers 3 in an LiTaO.sub.3 substrate 1, an optical waveguide is formed. By performing low-temperature annealing for the optical wavelength conversion element thus formed, a stable proton exchange layer 8 is formed, where an increase in refractive index g |
| 6847660 |
Short-wavelength laser module and method of producing the same |
January 25, 2005 |
| In a short-wavelength laser module, long-term reliability is lost because of unnecessary gas deposited on the end face of its optical waveguide.A short-wavelength laser module has a package structure wherein a package lid used when the short-wavelength laser module is hermetically sealed |
| 6846265 |
Hybrid vehicle |
January 25, 2005 |
| In a hybrid vehicle, power is transmitted via a torque converter provided with a lock-up clutch, and a force input through wheels during deceleration is transmitted to the motor via the torque converter so that a regenerative operation may be carried out by the motor to convert decel |
| 6845113 |
Coherent light source and recording/reproducing apparatus using the same |
January 18, 2005 |
| It is an object of the present invention to provide a short-wavelength coherent light source that includes a semiconductor laser and a wavelength converting device and is controlled to have a desired wavelength. The coherent light source includes the following: a semiconductor laser havi |
| 6835160 |
Control device for hybrid vehicle |
December 28, 2004 |
| A control device for a hybrid vehicle is described which enables preventing a decrease in the efficiency of regeneration even when the revolution rate of an internal combustion engine is decreased during deceleration of the vehicle. The control device for a hybrid vehicle comprises an in |
| 6829080 |
Optical waveguide device and light source and optical apparatus using the same |
December 7, 2004 |
| An optical waveguide device is provided that can reduce external interference noise. The optical waveguide device includes a substrate, an optical waveguide formed on the substrate, a periodic polarization inversion region formed on the optical waveguide, and an optical thin film for |
| 6819646 |
Optical pickup, optical information recording/reproducing apparatus using the same, and phase va |
November 16, 2004 |
| Laser beams respectively emitted from a SHG blue laser unit and a red semiconductor laser unit that have photo detectors respectively are turned into parallel lights by a collimator lens and then coupled by a dielectric multi-layer film mirror so as to be propagated on the same optical a |
| 6802655 |
Laser source |
October 12, 2004 |
| An object of the present invention is to provide a laser source including a submount, an electrode portion formed on the submount, and a semiconductor laser fixed to the electrode portion by means of an adhesive portion, capable of improving the position accuracy of a laser beam emission |
| 6785457 |
Optical waveguide device and coherent light source and optical apparatus using the same |
August 31, 2004 |
| The present invention aims to simplify a mass production process of an optical waveguide device and to reduce cost as well as noise. The optical waveguide device includes an optical waveguide whose entrance end face and exit end face are substantially parallel to each other. A SHG device |
| 6738398 |
SHG laser light source and method of modulation for use therewith |
May 18, 2004 |
| The invention provides an SHG laser light source whose optical output can be modulated using a simple mechanism without having to equip the light source with an external modulator, and a method of modulation for use with the SHG laser light source, wherein the SHG laser light source comp |
| 6711183 |
Optical wavelength conversion device, coherent light generator, and optical information processi |
March 23, 2004 |
| An optical wavelength conversion device includes: two or more non-linear optical crystals each having approximately identical phase matching conditions for a fundamental wave light and a second harmonic wave light; and a phase adjusting section inserted between the adjacent non-linear |
| 6704337 |
Wavelength-variable semiconductor laser, optical integrated device utilizing the same, and produ |
March 9, 2004 |
| A wavelength-variable semiconductor laser includes: a submount; and a semiconductor laser chip being mounted onto the submount and having at least an active layer region and a distributed Bragg reflection region, wherein the semiconductor laser chip is mounted onto the submount in such |
| 6693936 |
Wavelength-variable semiconductor laser, optical integrated device utilizing the same, and produ |
February 17, 2004 |
| A wavelength-variable semiconductor laser includes: a submount; and a semiconductor laser chip being mounted onto the submount and having at least an active layer region and a distributed Bragg reflection region, wherein the semiconductor laser chip is mounted onto the submount in such |
| 6631231 |
Optical waveguide elements, optical wavelength conversion elements, and process for producing op |
October 7, 2003 |
| An optical waveguide element includes a three-dimensional optical waveguide of a bulky non-linear optical crystal, a substrate, and a joining layer made of an amorphous material. The substrate is joined to the optical waveguide via the joining layer. |
| 6629515 |
Engine control device |
October 7, 2003 |
| An engine control device is provided, capable of restarting the engine when starting the vehicle rapidly and without giving any feeling of unease to the driver at the time of starting the vehicle by restarting the engine from the idle stop state. The engine control device comprises an en |
| 6621962 |
Optical waveguide device integrated module and method of manufacturing the same |
September 16, 2003 |
| A semiconductor laser and an optical waveguide device with an optical waveguide formed at a surface of its substrate are provided on a submount. The semiconductor laser and the optical waveguide device are mounted with an active layer and a surface at which the optical waveguide is forme |
| 6614966 |
Optical waveguide device integrated module and method of manufacturing the same |
September 2, 2003 |
| A semiconductor laser and an optical waveguide device with an optical waveguide formed at a surface of its substrate are provided on a submount. The semiconductor laser and the optical waveguide device are mounted with an active layer and a surface at which the optical waveguide is forme |
| 6590915 |
Optical apparatus and method for producing the same |
July 8, 2003 |
| A light generating apparatus includes: a submount; a semiconductor laser chip mounted on the submount; a substrate which is mounted on the submount and includes an optical waveguide; and a substance having a predetermined thickness which is disposed between the semiconductor laser chip a |
| 6519077 |
OPTICAL WAVEGUIDE, OPTICAL WAVELENGTH CONVERSION DEVICE, METHOD FOR PRODUCING THE SAME, SHORT WA |
February 11, 2003 |
| An optical waveguide of the present invention includes: a nonlinear optical crystal; a first ion exchange region provided in the vicinity of a portion of a surface of the nonlinear optical crystal; and a second ion exchange region provided in the surface of the nonlinear optical crystal. |
| 6501868 |
Optical waveguide device, coherent light source, integrated unit, and optical pickup |
December 31, 2002 |
| An optical waveguide device comprises a substrate having first and second surfaces, and an optical waveguide provided on the first surface of the substrate, having a light-incoming facet and a facet inclined with respect to the optical waveguide. Guided light incident to the optical wave |
| 6496299 |
Method for stabilizing output of higher harmonic waves and short wavelength laser beam source us |
December 17, 2002 |
| A laser beam as fundamental waves which is emitted from a distribution Bragg reflection (DBR) semiconductor laser is incident on an optical waveguide of a light wavelength conversion device in which domain-inverted regions and the optical waveguide are formed in an LiTaO.sub.3 substrate. |
| 6441970 |
Optical waveguide device, and light source device and optical apparatus including the optical wa |
August 27, 2002 |
| An optical waveguide device includes a dielectric substrate; and an optical waveguide formed in the dielectric substrate, the optical waveguide having a longitudinal axis and an outgoing surface disposed at an angle other than a right angle relative to a plane perpendicular to the longit |
| 6392979 |
Optical pickup and optical disk apparatus using the same |
May 21, 2002 |
| Laser light emitted from the wavelength-locked GaN semiconductor laser is collimated through a collimation lens, led through a polarization beam splitter and a 1/4 wavelength plate, and converged by a focus lens so as to be radiated on pits formed in an optical disk medium. The signal li |
| 6353495 |
Method for forming a ferroelectric domain-inverted structure |
March 5, 2002 |
| A method for forming a ferroelectric domain-inverted structure, having the steps of joining at least two kinds of ferroelectric material which have different spontaneous polarizations, and ferroelectric domain-inverting one of the ferroelectric materials and thereby ferroelectric dom |
