Patents Assigned to Inter-University Research Institute Corporation National Institutes of Natural Sciences
  • Patent number: 8976820
    Abstract: 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: Grant
    Filed: May 21, 2012
    Date of Patent: March 10, 2015
    Assignee: Inter-University Research Institute Corporation National Institutes of Natural Sciences
    Inventors: Takunori Taira, Simon Joly, Rakesh Bhandari
  • Publication number: 20140274726
    Abstract: A method for producing a composite superconductor includes: a structure forming process of forming a structure including a metal covering member (20) including at least one to-be-joined portion, a superconductor (30) arranged inside the metal covering member, and a reinforcing member (40) arranged between the superconductor (30) and the at least one to-be-joined portion; and a joining process of joining thereafter the at least one to-be-joined portion.
    Type: Application
    Filed: September 4, 2012
    Publication date: September 18, 2014
    Applicants: INTER-UNIVERSITY RESEARCH INSTITUTE CORPORATION NATIONAL INSTITUTES OF NATURAL SCIENCES, FURUKAWA ELECTRIC CO., LTD.
    Inventors: Masahiro Sugimoto, Hirokazu Tsubouchi, Hitoshi Shimizu, Toshiya Okada, Toshirou Sakai, Kazuya Takahata, Hitoshi Tamura, Toshiyuki Mito
  • Patent number: 8824521
    Abstract: 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: Grant
    Filed: August 1, 2012
    Date of Patent: September 2, 2014
    Assignee: Inter-University Research Institute Corporation National Institutes of Natural Sciences
    Inventors: Takunori Taira, Weipeng Kong
  • Patent number: 8778541
    Abstract: A negative electrode used for a nonaqueous electrolyte solution battery having nonaqueous electrolyte solution containing lithium ion includes a metal carbon composite material. The metal carbon composite material has a porous carbon material having cavities, and a metal material made of metal to reversibly store or emit lithium ion. The metal material is arranged on a surface of the porous carbon material including inner surfaces of the cavities. The porous carbon material has a mass of 1-65 mass % when the metal carbon composite material is defined to have a mass of 100 mass %.
    Type: Grant
    Filed: April 27, 2010
    Date of Patent: July 15, 2014
    Assignees: Denso Corporation, Inter-University Research Institute Corporation National Institutes of Natural Sciences
    Inventors: Kouhei Yamamoto, Norikazu Adachi, Hisashi Umemoto, Manabu Yamada, Yasuyuki Ooba, Nobuyuki Nishi, Shigenori Numao
  • Publication number: 20140169395
    Abstract: 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: Application
    Filed: August 1, 2012
    Publication date: June 19, 2014
    Applicant: INTER-UNIVERSITY RESEARCH INSTITUTE CORPORATION NATIONAL INSTITUTES OF NATURAL SCIENCES
    Inventors: Takunori Taira, Weipeng Kong
  • Patent number: 8658777
    Abstract: 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: Grant
    Filed: May 9, 2008
    Date of Patent: February 25, 2014
    Assignees: The University of Tokyo, Inter-University Research Institute Corporation National Institutes of Natural Sciences
    Inventors: Yoshio Umezawa, Takeaki Ozawa, Akira Kanno
  • Publication number: 20140010247
    Abstract: 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: Application
    Filed: May 21, 2012
    Publication date: January 9, 2014
    Applicant: Inter-University Research Institute Corporation National Institutes of Natural Sciences
    Inventors: Takunori Taira, Simon Joly, Rakesh Bhandari
  • Publication number: 20130186362
    Abstract: 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: Application
    Filed: September 20, 2011
    Publication date: July 25, 2013
    Applicants: INTER-UNIVERSITY RESEARCH INSTITUTE CORPORATION, NATIONAL INSTITUTES OF NATURAL SCIENCES, NIPPON SOKEN, INC.
    Inventors: Kenji Kanehara, Nicolaie Pavel, Takunori Taira, Masaki Tsunekane
  • Patent number: 8492536
    Abstract: 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: Grant
    Filed: August 8, 2008
    Date of Patent: July 23, 2013
    Assignees: Inter-University Research Institute Corporation National Institute of Natural Sciences, Nagayama IP Holdings, LLC
    Inventors: Masanori Kataoka, Kuniaki Nagayama
  • Publication number: 20130181172
    Abstract: 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: Application
    Filed: August 8, 2011
    Publication date: July 18, 2013
    Applicants: INTER-UNIVERSITY RESEARCH INSTITUTE CORPORATION, NATIONAL INSTITUTES OF NATURAL SCIENCES, NIPPON STEEL & SUMIKIN CHEMICAL CO., LTD., DENSO CORPORATION
    Inventors: Nobuyuki Nishi, Norikazu Adachi, Yasuyuki Ooba, Manabu Yamada, Kenichiro Kami, Kazuhiko Mizuuchi
  • Patent number: 8470724
    Abstract: 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: Grant
    Filed: December 25, 2009
    Date of Patent: June 25, 2013
    Assignees: Inter-University Research Institute Corporation, National Institutes of Natural Sciences, Genesis Research Institute, Incorporated
    Inventors: Takunori Taira, Jun Akiyama, Shigeo Asai, Kunihiko Hara
  • Publication number: 20130053933
    Abstract: 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: Application
    Filed: August 16, 2012
    Publication date: February 28, 2013
    Applicants: NIHON KOHDEN CORPORATION, INTER-UNIVERSITY RESEARCH INSTITUTE CORPORATION NATIONAL INSTITUTE OF NATURAL SCIENCES
    Inventors: Koji INUI, Yasuyuki TAKESHIMA, Jun MOTOGI, Yoshinobu ONO, Ryosuke USHIJIMA, Takeshi KOJIMA
  • Patent number: 8223813
    Abstract: A compact semiconductor laser pumped solid-state laser device is provided that can suppress unnecessary parasitic oscillation in a microchip and efficiently extract energy.
    Type: Grant
    Filed: January 11, 2011
    Date of Patent: July 17, 2012
    Assignee: Inter-University Research Institute Corporation, National Institutes of Natural Sciences
    Inventors: Masaki Tsunekane, Takunori Taira
  • Patent number: 8211899
    Abstract: The present invention provides artificial universal base capable of base pairing nonspecifically with any of four kinds of natural nucleic acid bases (A, T, G, and C) without the function to specifically recognize pairing natural nucleic acid bases for base pair formation. Universal base capable of base paring nonspecifically with four kinds of natural nucleic acid bases, wherein the universal base has a structure represented by the following chemical formula: wherein R represents a monovalent group other than a hydrogen atom.
    Type: Grant
    Filed: July 27, 2006
    Date of Patent: July 3, 2012
    Assignee: Inter-University Research Institute Corporation National Institute of Natural Sciences
    Inventor: Masanori Kataoka
  • Patent number: 7995706
    Abstract: The present invention provides an electromagnetic wave/particle beam spectroscopic instrument that is not easily deteriorated in spectroscopic capability, and is resistant to electromagnetic noise, vibrations, heavy sound, heat and specific particle beams of interest, particle beams other than electromagnetic waves, electric noise due to electromagnetic waves, mechanical destruction, and recoiling of solid constituent atoms and is also more resistant to radiation exposure on the detection means than the conventional energy resolving technologies.
    Type: Grant
    Filed: March 12, 2009
    Date of Patent: August 9, 2011
    Assignee: Inter-University Research Institute Corporation National Institutes of Natural Sciences
    Inventor: Sadatsugu Muto
  • Publication number: 20110176566
    Abstract: A compact semiconductor laser pumped solid-state laser device is provided that can suppress unnecessary parasitic oscillation in a microchip and efficiently extract energy.
    Type: Application
    Filed: January 11, 2011
    Publication date: July 21, 2011
    Applicant: INTER-UNIVERSITY RESEARCH INSTITUTE CORPORATION, NATIONAL INSTITUTES OF NATURAL SCIENCES
    Inventors: Masaki Tsunekane, Takunori Taira
  • Publication number: 20110150026
    Abstract: There is provided a semiconductor laser pumped solid-state laser device for engine ignition that can stably provide optical energy required for ignition across a wide temperature range. In the semiconductor laser pumped solid-state laser device for engine ignition, a plurality of semiconductor lasers 21, 22, 23, and 24 are used that have locking ranges, a temperature width thereof divided into a plurality of temperature ranges corresponding to a variation width of an ambient temperature, and that have the respective wavelengths falling within an absorption wavelength band of a solid-state laser medium 5 of the solid-state laser device in the temperature width of each locking range, to pump the solid-state laser medium 5 by multiplexing emitted lights from the plurality of semiconductor lasers 21, 22, 23, and 24 using a multiplexing mechanism to irradiate the solid-state laser medium 5.
    Type: Application
    Filed: December 15, 2010
    Publication date: June 23, 2011
    Applicants: INTER-UNIVERSITY RESEARCH INSTITUTE CORPORATION, NATIONAL INSTITUTES OF NATURAL SCIENCES, NIPPON SOKEN, INC.
    Inventors: Masaki Tsunekane, Takunori Taira, Kenji Kanehara
  • Patent number: 7897817
    Abstract: To provide a catalyst that has sufficient catalytic activity as a platinum catalyst and yet is readily separated from a target material and can be reused. A resin-supported platinum cluster catalyst containing a resin layer comprising a platinum particle core, the average diameter of which is from 1 nm to 10 nm, and a compound containing nitrogen (general formula R1NH2) surrounding the core.
    Type: Grant
    Filed: December 1, 2005
    Date of Patent: March 1, 2011
    Assignee: Inter-University Research Institute Corporation National Institutes of Natural Sciences
    Inventors: Yasuhiro Uozumi, Yoichi Yamada, Takayasu Arakawa
  • Publication number: 20100316907
    Abstract: A negative electrode used for a nonaqueous electrolyte solution battery having nonaqueous electrolyte solution containing lithium ion includes a metal carbon composite material. The metal carbon composite material has a porous carbon material having cavities, and a metal material made of metal to reversibly store or emit lithium ion. The metal material is arranged on a surface of the porous carbon material including inner surfaces of the cavities. The porous carbon material has a mass of 1-65 mass % when the metal carbon composite material is defined to have a mass of 100 mass %.
    Type: Application
    Filed: April 27, 2010
    Publication date: December 16, 2010
    Applicants: DENSO CORPORATION, Inter-University Research Institute Corporation, National Institutes Of Natural Sciences
    Inventors: Kouhei Yamamoto, Norikazu Adachi, Hisashi Umemoto, Manabu Yamada, Yasuyuki Ooba, Nobuyuki Nishi, Shigenori Numao
  • Patent number: 7744810
    Abstract: A reactor has a casing composed of a magnesia-based refractory, and a bottom plate composed of an MgO-graphite mixed refractory is disposed on a bottom part of this casing. A graphite crucible is provided at a bottom of the reactor, and the graphite crucible and the reactor are joined together by a magnesia cylinder. Iron ore powder, coal powder, and other such raw materials supplied into the reactor are irradiated with microwaves from microwave oscillators and are heated. The iron ore is reduced, and the resulting molten pig iron flows out through a hole into a crucible, and then is poured out of the crucible through another hole into a ladle. It is thereby possible to manufacture molten pig iron with high energy efficiency, instead of using blast-furnace iron-making.
    Type: Grant
    Filed: July 30, 2008
    Date of Patent: June 29, 2010
    Assignees: Tokyo Institute of Technology, Inter-University Research Institute Corporation National Institutes of Natural Sciences
    Inventors: Kazuhiro Nagata, Motoyasu Sato