Patents Assigned to Inter-University Research Institute Corporation
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Publication number: 20140169395Abstract: A solid laser apparatus which includes: two reflection elements for forming an oscillator; a plate-shaped gain medium being disposed between the two reflection elements, thereby augmenting a stimulated emission light in a thickness-wise direction; a doughnut- or deformed-doughnut-type planar waveguide being disposed so as to make an inner peripheral face thereof come in contact with an outer peripheral face of the plate-shaped gain medium; and a plurality of excited-light sources being directed in five or more directions, the excited-light sources being coupled to an outer peripheral face of the doughnut- or deformed-doughnut-type planar waveguide so as to make excited lights propagate from the outer peripheral face of the doughnut- or deformed-doughnut-type planar waveguide to the plate-shaped gain medium.Type: ApplicationFiled: August 1, 2012Publication date: June 19, 2014Applicant: INTER-UNIVERSITY RESEARCH INSTITUTE CORPORATION NATIONAL INSTITUTES OF NATURAL SCIENCESInventors: Takunori Taira, Weipeng Kong
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Publication number: 20140077093Abstract: The present invention presents a 2-D-TOF-pulse neutron detector which is able to measure accurate energy spectra, doses, 2-D incident positions and transmission image by measuring TOF of pulse neutron for BNCT and to display the result of the measurement on the transmission image. The 2-D-TOF-pulse neutron detector includes a GEM-detector being put in a chamber filled with electrolytic-dissociative gas, 2-D-TOF readout integrated circuit and image processor.Type: ApplicationFiled: May 6, 2013Publication date: March 20, 2014Applicant: INTER-UNIVERSITY RESEARCH INSTITUTE CORPORATIONInventor: INTER-UNIVERSITY RESEARCH INSTITUTE CORPORATION
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Patent number: 8675708Abstract: Provided is a laser oscillation apparatus capable of stabilizing resonance even when finesse of an optical resonator is increased and generating stronger laser light than that of a traditional apparatus by accumulating laser light in the optical resonator.Type: GrantFiled: August 3, 2011Date of Patent: March 18, 2014Assignee: Inter-University Research Institute Corporation High Energy Accelerator Research OrganizationInventors: Yosuke Honda, Junji Urakawa
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Publication number: 20140058736Abstract: According to an embodiment, a signal processing apparatus includes an estimation unit and an updating unit. The estimation unit is configured to estimate an auxiliary variable of a target section including first and second sections of input signals by using an approximating auxiliary function for approximating an auxiliary function having an auxiliary variable as an argument. The auxiliary function is determined according to an objective function that outputs a function value that is smaller as a statistical independence of separated signals into which input signals in time-series are separated by a demixing matrix is higher. The estimation unit is configured to estimate a value of the auxiliary variable of the target section based on the estimated auxiliary variable. The updating unit is configured to update the demixing matrix such that a function value of the approximating auxiliary function is minimized.Type: ApplicationFiled: August 15, 2013Publication date: February 27, 2014Applicants: Inter-University Research Institute Corporation, Research Organization of Information and Systems, KABUSHIKI KAISHA TOSHIBAInventors: Toru Taniguchi, Nobutaka Ono
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Patent number: 8658777Abstract: It is an object of the invention to provide novel approaches capable of detecting activated protease and also detecting protease activation on real time at a high sensitivity in a noninvasive manner. By the method for detecting activated protease of the invention, an indicator in a circular form comprising the C-half fragment of luciferase (Luc-C) and the N-half fragment of luciferase (Luc-N) linked together through a substrate peptide for a protease is introduced in an in vitro assay system or in cells. Upon digestion of the substrate peptide by the protease, Luc-N and Luc-C together reconstructs active luciferase, so that the activated protease can be detected by assaying the luminescence signal from the luciferase.Type: GrantFiled: May 9, 2008Date of Patent: February 25, 2014Assignees: The University of Tokyo, Inter-University Research Institute Corporation National Institutes of Natural SciencesInventors: Yoshio Umezawa, Takeaki Ozawa, Akira Kanno
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Publication number: 20140046626Abstract: This computation device and method exponentially shortens a computation time of an NP-complete problem or the like mapped into an Ising model by exponentially shortening a computation time of the Ising mode. For each pair of a plurality of slave lasers, by controlling the intensity, the polarization, and the phase of light exchanged between two slave lasers using an attenuator and a wave plate, the magnitude and the sign of pseudo Ising interaction between two slave lasers are implemented. Then, after the plurality of slave lasers arrive at a steady state, by measuring the polarization of light generated by each slave laser with left-handed circular polarization and right-handed circular polarization used as bases, a pseudo spin of each slave laser is measured.Type: ApplicationFiled: February 28, 2012Publication date: February 13, 2014Applicant: Inter-University Research Institute Corporation, Research Organization of Information SystemsInventors: Yoshihisa Yamamoto, Shoko Utsunomiya, Kenta Takata
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Publication number: 20140010247Abstract: To provide a passive Q-switch-type solid laser apparatus for outputting a high peak-power pulse laser whose pulse energy is large and pulse-time width is small. A passive Q-switch-type solid laser apparatus has: two reflection elements for forming an oscillator; a solid gain medium being disposed between the two reflection elements; a saturable absorber being disposed between the two reflection elements; an excitation device for exciting the solid gain medium; and a cross section control device for making at least one of a stimulated emission cross section of the solid gain medium and an absorption cross section of the saturable absorber closer to another one of them; and the cross section control device is equipped with at least one or both of a temperature control device for retaining the solid gain medium at a predetermined temperature and an oscillatory-wavelength control device for fixating an oscillatory wavelength at a predetermined wavelength.Type: ApplicationFiled: May 21, 2012Publication date: January 9, 2014Applicant: Inter-University Research Institute Corporation National Institutes of Natural SciencesInventors: Takunori Taira, Simon Joly, Rakesh Bhandari
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Patent number: 8575546Abstract: The invention provides a nondestructive inspection apparatus and nondestructive inspection method for inspecting the inside of a surface layer of a composite structure using cosmic-ray muons.Type: GrantFiled: February 23, 2009Date of Patent: November 5, 2013Assignee: Inter-University Research Institute Corporation High Energy Accelerator Research OrganizationInventor: Kanetada Nagamine
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Publication number: 20130186362Abstract: A laser ignition system that is mounted on an internal combustion engine and that condenses a laser beam oscillated from a laser oscillator into an engine combustion chamber by using a condenser lens to generate a flame kernel with high energy and to perform ignition includes at least a highly-refractive optical element that refracts optical axes OPX1 to OPXn of plural laser beams oscillated from plural semiconductor lasers 5-1 to 5-n through a resonator to change traveling directions of the laser beams and a condenser device that condenses the laser beams refracted by the highly-refractive optical element on plural positions FP1 to FPn in the engine combustion chamber.Type: ApplicationFiled: September 20, 2011Publication date: July 25, 2013Applicants: INTER-UNIVERSITY RESEARCH INSTITUTE CORPORATION, NATIONAL INSTITUTES OF NATURAL SCIENCES, NIPPON SOKEN, INC.Inventors: Kenji Kanehara, Nicolaie Pavel, Takunori Taira, Masaki Tsunekane
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Patent number: 8492536Abstract: A method for modifying nucleic acid bases by a chemical means, which enables the discrimination of every base species in plural species of bases in a nucleic acid comprising plural nucleotide units, while retaining the base sequence information of the nucleic acid. A nucleic acid base-modified product provided by the method. The nucleic acid base-modified product is essentially a single strand. In accordance with the invention, a novel means for sequencing a nucleic acid by a microscopic means is provided.Type: GrantFiled: August 8, 2008Date of Patent: July 23, 2013Assignees: Inter-University Research Institute Corporation National Institute of Natural Sciences, Nagayama IP Holdings, LLCInventors: Masanori Kataoka, Kuniaki Nagayama
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Publication number: 20130181172Abstract: This invention provides a carbon nanostructure including: carbon containing rod-shaped materials and/or carbon containing sheet-shaped materials which are bound three-dimensionally; and graphene multilayer membrane walls which are formed in the rod-shaped materials and/or the sheet-shaped materials; wherein air-sac-like pores, which are defined by the graphene multilayer membrane walls, are formed in the rod-shaped materials and/or the sheet-shaped materials.Type: ApplicationFiled: August 8, 2011Publication date: July 18, 2013Applicants: INTER-UNIVERSITY RESEARCH INSTITUTE CORPORATION, NATIONAL INSTITUTES OF NATURAL SCIENCES, NIPPON STEEL & SUMIKIN CHEMICAL CO., LTD., DENSO CORPORATIONInventors: Nobuyuki Nishi, Norikazu Adachi, Yasuyuki Ooba, Manabu Yamada, Kenichiro Kami, Kazuhiko Mizuuchi
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Patent number: 8470724Abstract: Upon producing a transparent polycrystalline material, a suspension liquid (or slurry 1) is prepared, the suspension liquid being made by dispersing a raw-material powder in a solution, the raw-material powder including optically anisotropic single-crystalline particles to which a rare-earth element is added. A formed body is obtained from the suspension liquid by means of carrying out slip casting in a space with a magnetic field applied. On this occasion, while doing a temperature control so that the single-crystalline particles demonstrate predetermined magnetic anisotropy, one of static magnetic fields and rotary magnetic fields is selected in compliance with a direction of an axis of easy magnetization in the single-crystalline particles, and is then applied to them. A transparent polycrystalline material is obtained by sintering the formed body, the transparent polycrystalline material having a polycrystalline structure whose crystal orientation is controlled.Type: GrantFiled: December 25, 2009Date of Patent: June 25, 2013Assignees: Inter-University Research Institute Corporation, National Institutes of Natural Sciences, Genesis Research Institute, IncorporatedInventors: Takunori Taira, Jun Akiyama, Shigeo Asai, Kunihiko Hara
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Patent number: 8456110Abstract: The present invention provides a set of induction accelerating cell for controlling acceleration of a charged particle beam and an induction accelerating device for controlling generation timing of an induced voltage applied by the induction accelerating cell in a synchrotron. The induction accelerating device in a synchrotron includes: an induction accelerating cell that applies an induced voltage; a switching power supply that supplies a pulse voltage to the induction accelerating cell via a transmission line and drives said induction accelerating cell; a DC power supply that supplies electric power to the switching power supply; and an intelligent control device including a pattern generator that generates a gate signal pattern for controlling on/off the switching power supply, and a digital signal processing device that controls on/off a gate master signal that becomes the basis of the gate signal pattern.Type: GrantFiled: December 11, 2006Date of Patent: June 4, 2013Assignee: Inter-University Research Institute CorporationInventors: Ken Takayama, Kota Torikai, Yoshio Arakida, Yoshito Shimosaki
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Patent number: 8422360Abstract: A route switching method for switching a route in a core network that accommodates service networks including user node apparatuses by use of a server storing path information that includes, in every time frame, a route for a working path and a route for a backup path to be switched over from the working path, both of the working path and the backup path established between two boundary node apparatuses each of which is located on a boundary between the service network and the core network. The server calculates, in response to the connection request from the user node apparatus, a route for a working path and a route for a backup path, and requests the boundary node apparatus to establish this working path. The server can send the route for the backup path to the boundary node apparatus before a failure occurs in the core network.Type: GrantFiled: June 30, 2009Date of Patent: April 16, 2013Assignees: Nippon Telegraph and Telephone Corporation, Inter-University Research Institute Corporation Research Organization of Information and SystemsInventors: Kaori Shimizu, Ichiro Inoue, Kohei Shiomoto, Shigeo Urushidani
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Publication number: 20130064338Abstract: The present invention provides a target capable of reducing radioactivation of a member due to protons. The present invention uses a novel target configured by compositing a beryllium material or a lithium material and a carbon-series material for reducing the radioactivation of the member due to the protons.Type: ApplicationFiled: August 8, 2012Publication date: March 14, 2013Applicant: Inter-University Research Institute Corporation High Energy Accelerator Research OrganizationInventors: Hiroshi MATSUMOTO, Hitoshi KOBAYASHI, Masakazu YOSHIOKA, Toshikazu KURIHARA
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Publication number: 20130053933Abstract: A pain sensory nerve stimulation apparatus includes: a stimulation electrode which is adapted to be attached to a living body, at least one of an exogenous algesic substance and pyrogen which is to be interposed between the living body and the stimulation electrode; and a stimulation power supplier which is configured to supply electric power to the stimulation electrode.Type: ApplicationFiled: August 16, 2012Publication date: February 28, 2013Applicants: NIHON KOHDEN CORPORATION, INTER-UNIVERSITY RESEARCH INSTITUTE CORPORATION NATIONAL INSTITUTE OF NATURAL SCIENCESInventors: Koji INUI, Yasuyuki TAKESHIMA, Jun MOTOGI, Yoshinobu ONO, Ryosuke USHIJIMA, Takeshi KOJIMA
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Patent number: 8384040Abstract: A medium area (S) filled with liquid xenon (2) is formed between an external cylindrical body (1a) and internal cylindrical body (1b), and a pair of anode pads (11, 12) are disposed in two-dimensional form in opposite end portions of the medium area (S) in the intersection direction with respect to the gamma-ray incident direction. An intermediate electrode (10) is disposed between a pair of anode pads (11, 12), and a plurality of photomultiplier tubes (5) is installed in two-dimensional form in the external cylindrical body (1a). Then, the gamma-ray reaction point within the liquid area (S) is identified from signals output from the anode pads (11, 12) and photomultiplier tubes (5).Type: GrantFiled: February 15, 2008Date of Patent: February 26, 2013Assignee: Inter-University Research Institute Corporation High Energy Accelerator Research OrganizationInventors: Toshiaki Tauchi, Akihiro Maki, Tomiyoshi Haruyama, Masayuki Kumada, Takehiro Tomitani
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Publication number: 20130043537Abstract: There is provided a semiconductor device and a method for manufacturing a semiconductor device. Within the N-type semiconductor layer formed from a high resistance N-type substrate, the P-type well diffusion layer and P-type extraction layer are formed and are fixed to ground potential. Due thereto, a depletion layer spreading on the P-type well diffusion layer side does not reach the interlayer boundary between the P-type well diffusion layer and the buried oxide film. Hence, the potential around the surface of the P-type well diffusion layer is kept at a ground potential. Accordingly, when the voltages are applied to the backside of the N-type semiconductor layer and a cathode electrode, a channel region at the MOS-type semiconductor formed as a P-type semiconductor layer is not activated. Due thereto, leakage current that may occur independently of a control due to the gate electrode of a transistor can be suppressed.Type: ApplicationFiled: March 9, 2011Publication date: February 21, 2013Applicants: LAPIS Semiconductor Co., Ltd., INTER-UNIVERSITY RESEARCH INSTITUTE CORPORATION HIGH ENERGY ACCELERATOR RESEARCH ORGANIZATIONInventors: Yasuo Arai, Masao Okihara, Hiroki Kasai
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Publication number: 20120330493Abstract: A method, featuring robustness against changes in tire size, is provided for determining a road surface condition by dividing a time-series waveform of tire vibrations into windows without resorting to detection of the peak positions or measurement of the wheel speed. A time-series waveform of tire vibrations detected by a tire vibration detecting unit is windowed by a windowing unit. Time-series waveforms are extracted from the respective time windows, feature vectors X are calculated therefor, and then likelihoods Z for road-surface HMMs (hidden Markov models) are calculated. The likelihoods Z1 to Z5 calculated for the respective road-surface HMMs are compared with one another, and a road surface condition corresponding to the road-surface HMM showing the highest likelihood is determined to be the condition of the road surface on which the tire is running.Type: ApplicationFiled: June 20, 2012Publication date: December 27, 2012Applicants: Inter-University Research Institute Corporation, Research Organization of Information and System, KABUSHIKI KAISHA BRIDGESTONEInventors: Yasushi HANATSUKA, Tomoyuki HIGUCHI, Tomoko MATSUI
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Patent number: 8324134Abstract: To provide a manufacturing method of a superconducting radio-frequency acceleration cavity used in a charged particle accelerator enabling the manufacturing with few waste amounts of the niobium material at low cost in a short time, the manufacturing method has each of the steps of (a) obtaining an ingot made from a disk-shaped niobium material, (b) slicing and cutting the niobium ingot into a plurality of niobium plates each with a predetermined thickness, by vibrating multiple wires back and forth while spraying fine floating abrasive grains with the niobium ingot supported, (c) removing the floating abrasive grains adhered to the sliced niobium plates, and (d) performing deep draw forming on the niobium plates and thereby obtaining a niobium cell of a desired shape.Type: GrantFiled: June 24, 2009Date of Patent: December 4, 2012Assignees: Inter-University Research Institute Corporation High Energy Accelerator Research Organization, Tokyo Denkai Co., Ltd., TKX CorporationInventors: Kenji Saito, Koichi Takeuchi, Hiroshi Yamazaki