Assignee: Sumitomo Osaka Cement Co., Ltd.

Location: Tokyo, JP
No. of patents: 90

Number	Title	Issue Date
8180226	Optical receiver The present invention relates to an optical receiver, and particularly, to an optical receiver by which a DQPSK-modulated optical signal is demodulated to a multilevel phase-modulated signal. ...	05/15/2012
8175432	Method of adjusting optical axis of optical waveguide element, and optical waveguide element A method of adjusting the optical axis of an optical waveguide element which can improve a manufacturing yield of the optical waveguide element, an alignment yield between the optical waveguide element and an input waveguide means, etc. and can equalize the branch r...	05/08/2012
8090226	Optical waveguide device and method for suppressing temperature crosstalk of optical waveguide device An optical waveguide device includes: a substrate having an electro-optical effect; an optical waveguide section formed on the substrate; and a plurality of modulating electrodes for modulating optical waves propagating in the optical waveguide section. The optical ...	01/03/2012
8068703	Optical modulator An optical modulator is provided which suppresses a radiation mode of a microwave generated in a connection substrate or a termination substrate from entering a signal electrode of the optical modulator and suppresses modulation properties from being degraded.	11/29/2011
8048314	Method for treating chlorine-containing waste The present invention provides a method and an apparatus for treating a chlorine-containing waste, which can separate and recover a chlorine component from a chlorine-containing waste, and also can achieve a high chlorine removal thereby obtaining a high purity chlo...	11/01/2011
8031987	Optical modulator An optical modulator suppresses a radiation mode of a microwave generated in a connection substrate or termination substrate from entering a signal electrode of the optical modulator and suppresses modulation properties from being degraded. The optical modulator inc...	10/04/2011
8031983	Light modulation device The present invention is directed to provide a light modulation device capable of not only restricting the faint light propagating in the adhesive layer from being re-incident on the thin substrate but also increasing an adhesive strength of the thin substrate and t...	10/04/2011
7985476	Transparent zirconia dispersion and zirconia particle-containing resin composition, composition for sealing light emitting element and light emitting element, hard coat film and optical functional film and optical component, and method for producing zirconia particle-containing resin The present invention provides a transparent inorganic oxide dispersion which makes it possible to improve the refractive index and mechanical characteristics and to maintain transparency by modifying the surface of inorganic oxide particles with a surface modifier ...	07/26/2011
7985294	Optical device and method of manufacturing the same An optical device and a method of manufacturing the optical device, with the method including the steps of forming a dopant layer on a stoichiometric lithium niobate single crystal substrate with Li to Nb mole composition ratio of 49.5% to 50.5%, and diffusing a dop...	07/26/2011
7925123	Optical control device A light control element is provided with a thin board having electro-optical effects; an optical waveguide formed on the thin board; and a control electrode for controlling light that passes through the optical waveguide. The light control element performs speed mat...	04/12/2011
7912326	Optical control device A light control element is provided with a thin board having electro-optical effects; an optical waveguide formed on the thin board; and a control electrode for controlling light that passes through the optical waveguide. The light control element performs speed mat...	03/22/2011
7912325	Optical control element There is provided an optical control element in which non-guided light is prevented from entering into an optical waveguide and which is excellent in optical properties, such as optical modulation properties. A media processor, such as a CD publisher, having a funct...	03/22/2011
7899338	Method and device for controlling bias of optical modulator A method and device for adequately controlling the DC bias of each of the optical modulating sections of an optical modulator even while the optical modulator is operating in normal mode and even with a simple structure. An optical modulator bias controller (B) for ...	03/01/2011
7873244	Light control device To provide a light control device which is possible to realize a velocity matching between a microwave and an optical wave or an impedance matching of microwaves even through a signal oath having a high impedance of 70Ω or more, and is possible to reduce a driving ...	01/18/2011
7869668	Method for generating carrier residual signal and its device A method for generating a carrier residual signal and its device, in which a heterodyne optical signal used in a photometric field or an optical fiber radio communication field can be stably generated with a simplified structure. The device includes an optical modul...	01/11/2011
7856155	Light modulator and its fabrication method It is an object of the invention to provide a light modulator using a thin plate having a thickness of 20 μm or less and capable of stably holding a conductive film suppressing troubles such as resonance phenomenon of microwaves in a substrate and pyro-electric phe...	12/21/2010
7831122	Optical control device and manufacturing method thereof The purpose of present inventions is to provide an optical control device having a single-mode waveguide in the optical control device having the ridge waveguide, and to stably manufacture and provide the optical control device having the single-mode waveguide with ...	11/09/2010
7822297	Optical modulator It is an object of the invention to provide an optical modulator in which a connection substrate or a terminal substrate is disposed outside an optical modulation element and which can maintain at a proper voltage amplitude value a modulation signal applied to an op...	10/26/2010
7768696	THZ wave generator The present invention purposes to provide a THz-wave generator capable of generating a THz-wave stably and efficiently, and particularly, to provide the THz-wave generator which is stable against a frequency shift of a laser source and which can easily vary the freq...	08/03/2010
7764422	THz wave generation device In a THz wave generator for generating a THz wave from a THz wave generating element by inputting a plurality of laser beams having different wavelengths to the THz wave generating element, all of the plurality of laser beams are formed into a pulse beam by the puls...	07/27/2010
7697846	Method for changing frequency and base station in radio optical fusion communication system In a radio optical fusion communication system with the integration of an optical fiber transmission path and a radio propagation path, wherein by first and second light sources, an intermediate-frequency signal generating means for generating a modulating signal at...	04/13/2010
7660493	Optical modulator An optical modulator is provided. The optical modulator includes a thin plate made of an electrooptic material and having a thickness of 20 μm or less, an optical waveguide formed on a top or bottom surface of the thin plate, and a modulation electrode formed on th...	02/09/2010
7657139	Y-junction reflector tunable delay or resonator waveguide devices The invention provides tunable delay or resonator devices in an electro optical substrate. Signals in at least one waveguide in the electro optical substrate pass through Y-junction reflectors which direct signals from one branch of the waveguide back into another b...	02/02/2010
7651470	Swallowing function evaluating apparatus A swallowing function evaluating apparatus capable of quantitatively evaluating a swallowing function safely and repeatedly, which comprises a height variation detecting unit 10 for detecting a variation in the height of the surface of a throat from a predete...	01/26/2010
7630537	Three-dimensional shape-measuring device A 3-D shape measurement apparatus for grasping the state of an object with ease and accuracy is provided. The 3-D shape measurement apparatus includes: a first 3-D sensor 10a having a projecting device 11 for projecting a light pattern on a targ...	12/08/2009
7570843	Optical modulation element module The present invention provides an optical modulation element module which is capable of the optical modulation for analog transmission with a low driving voltage and low chirp. An optical modulation element module, in which Mach-Zehnder type optical modulatio...	08/04/2009
7558444	Traveling-wave-type optical modulator and method of adjusting the same To provide a traveling-wave-type optical modulator and a method of adjusting the same, in which an occurrence of a jitter can be suppressed when an optical modulator is driven by using a driver, and, in particular, to provide a traveling-wave-type optical modulator ...	07/07/2009
7545279	Condition-analyzing device A condition analysis apparatus capable of grasping the condition of an object easily and accurately is provided. The condition analysis apparatus 1 includes a three-dimensional sensor 10 for measuring sampling-point-moves in the height direction of an ...	06/09/2009
7532778	Optical waveguide modulator equipped with an output light monitor An optical waveguide element having a plurality of surface waveguide portions. A connecting portion for connecting the surface waveguide portions. An output light-outputting waveguide portion connected to the connecting portion each on a dielectric substrate. An out...	05/12/2009
D587222	Attracting plate of an electrostatic chuck for semiconductor manufacturing	02/24/2009
7444039	Optical modulator An optical modulator capable of efficiently separating radiation light and propagation light from each other or removing the radiation light in the optical modulator to suppress loss of the optical modulator and deterioration of an extinction ratio, including a thin...	10/28/2008
7431700	Body movement and respiration monitor A monitor which can detect respiration of a sleeping person without being affected by the attitude of the sleeping person or the indoor illumination light and can easily evaluate detected respiration quantitatively through image measurement. The monitor comprises me...	10/07/2008
7428468	Monitoring apparatus To provide a monitoring device which can detect conditions of a sleeping person reliably and which is simple. A monitoring device comprising: multiple independent distance sensors 11 installed facing different positions in a monitored target area 50 to...	09/23/2008
7409114	Optical modulator An optical modulator using a thin plate including a portion having 20 μm or less thickness, capable of selecting a specific polarized wave from a light wave which propagates in an optical waveguide in the modulator without reduced productivity. The modulator includ...	08/05/2008
7397974	Optical modulator The present invention offers an optical modulator capable of efficiently transmitting electric signals to an interaction part of a signal electrode with acting on an optical waveguide even when the electric signals are in a high frequency zone, and capable of perfor...	07/08/2008
7374822	Near-infrared ray-shielding paint, near-infrared ray-shielding laminate obtained therefrom and production method thereof A near-infrared ray shielding paint capable of forming a coating that exhibits high light transmission coefficient in visible light region while having high shielding capability in near-infrared region and exhibits little chromaticity change even in harsh environmen...	05/20/2008
7371798	Thermoplastic water-curable composition, molded object made from the thermoplastic water-curable composition, and process for producing the same A thermoplastic water-curable composition which is excellent in mechanical properties, heat resistance, dimensional stability, and moldability and from which a mechanical part of a complicated shape can be produced: a molding formed from the thermoplastic water-cura...	05/13/2008
7362924	Optical modulator An optical modulator using a thin plate capable of improving an S/N ratio of an output light is provided. The optical modulator including a thin plate 1 having an electrooptic effect and having a thickness of 20 μm or less, an optical waveguide 4 form...	04/22/2008
7359581	Optical waveguide modulator with output light monitor An optical waveguide monitor equipped with an output light monitor having a decreased restriction in the dimensions and form thereof, a high reliability and a low production cost includes an optical waveguide element (having a plurality of surface waveguide portions...	04/15/2008
7310453	Optical modulator An optical modulator restricted in a photorefractive phenomenon caused by a stray light in an optical modulator, and improved in the quenching ratio characteristics of a signal light. The optical modulator comprises a substrate consisting of a material having an ele...	12/18/2007

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Assignee: Sumitomo Osaka Cement Co., Ltd.