Patent application number | Description | Published |
20100215987 | Aluminum nitride single crystal film, aluminum nitride single crystal multi-layer substrate and manufacturing processes thereof - In a method of manufacturing an aluminum nitride single crystal film on a substrate by heating a sapphire substrate in the presence of carbon, nitrogen and carbon monoxide, an aluminum compound which differs from the raw material sapphire substrate and the formed aluminum nitride single crystal and can control the concentration of aluminum in the heating atmosphere, such as aluminum nitride or alumina, is made existent in a reaction system to promote a reduction nitriding reaction. | 08-26-2010 |
20110018104 | METHOD FOR PRODUCING A LAMINATED BODY HAVING Al-BASED GROUP-III NITRIDE SINGLE CRYSTAL LAYER, LAMINATED BODY PRODUCED BY THE METHOD, METHOD FOR PRODUCING Al-BASED GROUP-III NITRIDE SINGLE CRYSTAL SUBSTRATE EMPLOYING THE LAMINATED BODY, AND ALUMINUM NITRIDE SINGLE CRYSTAL SUBSTRATE - The present invention is a method for producing a laminated body, comprising the steps of: (1) preparing a base substrate having a surface formed of a single crystal which is different from the material constituting the Al-based group-III nitride single crystal layer to be formed; (2) forming an Al-based group-III nitride single crystal layer having a thickness of 10 nm to 1.5 μm on the single crystal surface of the prepared base substrate; (3) forming on the Al-based group-III nitride single crystal layer a non-single crystal layer being 100 times or more thicker than the Al-based group-III nitride single crystal layer without breaking the previously-obtained Al-based group-III nitride single crystal layer; and (4) removing the base substrate. The method provides a substrate which can be suitably used as a base substrate for producing an Al-based group-III nitride single crystal self-supporting substrate, of which surface is formed of a single crystal of an Al-based group-III nitride, and which is free from cracking and warpage. | 01-27-2011 |
20110094438 | LAMINATED BODY AND THE METHOD FOR PRODUCTION THEREOF - The present invention provides a self-supporting substrate obtained by the steps of: forming an Al-based group-III nitride thin-layer having a thickness in the range of 3-200 nm on a base substrate made of a single crystal of an inorganic substance which substantially does not decompose at 800° C. in an inert gas atmosphere and which does produce volatiles by decomposition when contacting with a reducing gas in a temperature range of 800-1600° C., for example sapphire; forming voids along the interface between the base substrate and the Al-based group-III nitride thin-layer of the obtained laminated substrate by thermally treating the laminated substrate in a temperature range of 800-1600° C. in a reducing gas atmosphere containing ammonia gas; forming a group-III nitride single crystal thick-layer on the Al-based group-III nitride thin-layer; and separating these formed layers. The self-supporting substrate is a self-supporting substrate of the group-III nitride single crystal such as AlN, which is suitably used for forming a semiconductor device such as ultraviolet light emitting device and of which crystal plane shows a large radius of curvature. | 04-28-2011 |
Patent application number | Description | Published |
20080199190 | OPTICAL RECEIVER - An optical receiver comprising: a photoelectric converting unit converting an input optical signal into an converted electrical signal; a splitting unit splitting the converted electrical signal into a plurality of split electrical signals; an amplifier amplifying one of the plurality of the split electrical signals with a first input time constant and thereby outputting an output signal; a detection circuit detecting an interruption of the input optical signal with a second input time constant on the basis of one of the plurality of the split electrical signals other than the one of the plurality of the split electrical signals input to the amplifier and thereby outputting a detection signal; and a delay circuit configured to delay the detection signal; wherein, the second input time constant of the detection circuit is smaller than the first input time constant of the amplifier. | 08-21-2008 |
20090169203 | OPTICAL TRANSMISSION DEVICE AND OPTICAL TRANSMISSION METHOD - An optical transmission device for controlling an optical signal output includes a return light detection section for detecting return light of the optical signal transmitted via the optical transmission line; a superimposed light transmission section for generating superimposed light having a superimposed basic low-frequency wave and transmitting the light when return light is detected by the return light detection section; a return light identification section for identifying the return light detected by the return light detection section as Fresnel light caused by a disconnection of the optical connector or Stokes light caused by stimulated Brillouin scattering based on an analysis result of the return superimposed light with respect to the superimposed light transmitted by the superimposed light transmission section. | 07-02-2009 |
20090296761 | Optical device including a bimorph-type piezoelectric element - An optical device includes optical parts including a laser diode element accommodated in a housing. A bimorph-type piezoelectric element is arranged in a vicinity of the laser diode element and has a free end contacting one of the laser diode element, a support member supporting the laser diode element, and the housing. A control circuit controls an operation of the bimorph-type piezoelectric element. | 12-03-2009 |
20110176809 | OPTICAL TRANSMISSION SYSTEM AND OPTICAL TRANSMISSION METHOD - After implementing a scrambler upon an electric signal of digital signals to be transmitted to a user terminal, this electric signal is converted into a digital optical signal, and an analog optical signal and this digital optical signal are multiplexed by wavelength division multiplexing, thereby reducing influence of cross-talk interference that is exerted on the analog optical signal by the digital optical signal. | 07-21-2011 |
20120008303 | Communication module - An electromagnetic wave suppression material is fixed to a case of a communication module. The electromagnetic wave suppression material suppresses radiation of electromagnetic waves by coming into contact with a cage that is a module insertion portion of a chassis when the communication module is inserted into the cage. A piezoelectric element is provided on the case, and located between the case and the electromagnetic wave suppression material. When the communication module is inserted into the cage, the controller applies a voltage to the piezoelectric element to stretch it by the applied voltage, thereby increasing contact pressure between the cage and the electromagnetic wave suppression material. | 01-12-2012 |
Patent application number | Description | Published |
20100159787 | METHOD AND APPARATUS FOR MANUFACTURING SEALED PANEL AND METHOD AND APPARATUS FOR MANUFACTURING PLASMA DISPLAY PANEL - A method for manufacturing a sealed panel having a first substrate and a second substrate, including: a melting step of melting a sealing material which does not contain a binder for making the sealing material into paste form; a coating step of applying the melted sealing material onto a surface of the second substrate; and a sealing step of laminating the first substrate and the second substrate via the sealing material applied onto the surface of the second substrate. | 06-24-2010 |
20100167618 | METHOD AND APPARATUS FOR MANUFACTURING PLASMA DISPLAY PANEL - A method for manufacturing a plasma display panel in which an electrical discharge gas is introduced into a space between a first substrate and a second substrate which are sealed together, the method including: a first deaeration step of releasing impurity gases from a protective film by heating the first substrate, on which the protective film is formed for withstanding plasma electrical discharge, to 280° C. or more in a vacuum or in a controlled atmosphere; and a sealing step of sealing the front substrate, in which the impurity gases have been released from the protective film, and a rear substrate which are placed in contact with each other. | 07-01-2010 |
20110143033 | VACUUM PROCESSING APPARATUS AND VACUUM PROCESSING METHOD - A vacuum processing apparatus has a degassing chamber and does not need a large-sized vacuum evacuation device. In the process of heating and degassing an object to be processed in the degassing chamber, transferring the object to be processed into a processing chamber through a buffer chamber; and performing vacuum processing, the degassing chamber is connected to an vacuum evacuation system having a low evacuation speed and degassing processing is performed in a vacuum atmosphere of 1 to 100 Pa (time | 06-16-2011 |
20120114854 | VACUUM PROCESSING APPARATUS AND VACUUM PROCESSING METHOD - A vacuum processing apparatus has a degassing chamber and does not need a large-sized vacuum evacuation device. In the process of heating and degassing an object to be processed in the degassing chamber, transferring the object to be processed into a processing chamber through a buffer chamber; and performing vacuum processing, the degassing chamber is connected to an vacuum evacuation system having a low evacuation speed and degassing processing is performed in a vacuum atmosphere of 1 to 100 Pa (time 0 to t | 05-10-2012 |
Patent application number | Description | Published |
20130102861 | MEDICAL APPARATUS, THERAPY APPARATUS, METHOD OF ESTIMATING OPTICAL PROBE, AND CALIBRATION METHOD - According to an embodiment of the present application, there is provided a medical apparatus, including: a light source unit configured to be capable of emitting light including at least natural emission light, the light being guided into an optical probe; a first detecting unit configured to detect an intensity of light exiting from the light source unit; and a calculation unit configured to calculate to approximate to a non-linear function based on an intensity of light detected by the first detecting unit for calibration of the optical probe. | 04-25-2013 |
20130123642 | ESTIMATING APPARATUS AND ESTIMATING METHOD - A photodynamic therapy apparatus as an estimating apparatus is an apparatus for irradiating a tissue having absorbed photo-sensitive pharmaceutical, the photo-sensitive pharmaceutical absorbing an excitation light and emitting fluorescence, with the excitation light emitted from a tip portion of a laser the catheter, including a connector, a light source, and a light detection unit. The laser the catheter is capable of being attached/detached to/from the connector. The light source outputs the excitation light to the laser the catheter via the connector. The light detection unit detects intensity or a spectrum of the fluorescence, the fluorescence being entered from the laser the catheter via the connector, to estimate whether the tissue has changed because of reaction between the excitation light emitted from the tip portion of the laser the catheter and the photo-sensitive pharmaceutical absorbed in the tissue. | 05-16-2013 |
20130172697 | CALCULATION APPARATUS AND CALCULATION METHOD - [Object] To provide a calculation apparatus and a calculation method capable of calculating pharmaceutical concentration in a tissue in real time. | 07-04-2013 |
20130172863 | DETERMINING APPARATUS AND DETERMINING METHOD - A photodynamic therapy apparatus as a determining apparatus is the photodynamic therapy apparatus for irradiating a tissue having absorbed photo-sensitive pharmaceutical, the photo-sensitive pharmaceutical absorbing an excitation light and emitting fluorescence, or a tissue absorbing the excitation light and emitting fluorescence, with the excitation light emitted from a tip portion of a laser catheter, including a connector, a light source, and a light detection unit. The laser catheter is capable of being attached/detached to/from the connector. The light source outputs the excitation light to the laser catheter via the connector. The light detection unit detects intensity or a spectrum of the fluorescence, the fluorescence being entered from the laser catheter via the connector, to determine whether the tip portion of the laser catheter contacts the tissue or not. | 07-04-2013 |
20130323673 | DENTAL APPARATUS, MEDICAL APPARATUS AND CALCULATION METHOD - There is provided a dental apparatus including a light source for emitting a light to irradiate at least one of a tooth, a gum, a plaque and a calculus of an oral cavity, a light detector for detecting fluorescence from the oral cavity emitted to the light irradiated from the light source, and a control unit for outputting first data for visualizing a temporal change in a fluorescence intensity based on the fluorescence detected by the light detector. Also, there is provided a calculation method including irradiating an excited light, detecting a fluorescence intensity, and calculating a temporal change in the fluorescence intensity in a depth direction. | 12-05-2013 |
20130323674 | DENTAL APPARATUS, IMAGE ACQUISITION METHOD, AND INFORMATION PROCESSING APPARATUS - A dental apparatus includes a light irradiation unit for emitting a light to irradiate an oral cavity, an image capturing unit for image-capturing the oral cavity light irradiated by the light irradiation unit, and an output unit for outputting data for highlighting and displaying at least one of a plaque site and a calculus site on an image of the oral cavity based on an image captured result by the image capturing unit. | 12-05-2013 |
20140031699 | PHOTODYNAMIC DIAGNOSIS APPARATUS, PHOTODYNAMIC DIAGNOSIS METHOD AND DEVICE - There is provided a photodynamic diagnosis apparatus including a light source for generating a light pulse having a time width shorter than a fluorescence lifetime of a photosensitizer, and a detector for measuring a time change waveform of the fluorescence to the light pulse. | 01-30-2014 |