Patents Assigned to OKINAWA INSTITUTE OF SCIENCE AND TECHNOLOGY
  • Patent number: 11867597
    Abstract: A method for making a plasmonic mushroom array includes: forming a plurality of metal nano-islands each having nanometer-range dimensions on a surface of a glass substrate; and subjecting to the glass substrate having the plurality of metal nano-islands formed thereon to reactive ion etching such that the plurality of metal nano-islands are converted to a plurality of mushroom-shaped structures each having a metal cap supported by a pillar made of a material of the glass substrate and each having dimensions smaller than the dimensions of the nano-islands, the plurality of mushroom-shaped structures being arranged in a substantially regular pattern with intervals smaller than average intervals between the nano-islands, thereby forming the plurality of nano-scale mushroom-shaped structures on the glass substrate that can exhibit localized surface plasmon resonance.
    Type: Grant
    Filed: February 22, 2022
    Date of Patent: January 9, 2024
    Assignee: OKINAWA INSTITUTE OF SCIENCE AND TECHNOLOGY SCHOOL CORPORATION
    Inventors: Nikhil Bhalla, Amy Shen Fried, Kang-Yu Chu
  • Publication number: 20230251224
    Abstract: The present invention relates to a method for identifying a chemical structure of a wide variety of low molecular weight compounds using mass-to-charge ratio and collision cross section of fragment ions of an analyte compound. The analyte compound is ionized and fragmented, and the fragment ions are measured by a mass spectrometer with an ion mobility spectrometry measurement device. According to the present method, it does not depend on any compound class-specific characteristics or structural features, therefore enabling determinations of any classes of low molecular weight compounds, which does not limit to a specific compound class. The present invention comprises three methods which share a common data structure and s data processing method.
    Type: Application
    Filed: February 6, 2023
    Publication date: August 10, 2023
    Applicant: OKINAWA INSTITUTE OF SCIENCE AND TECHNOLOGY SCHOOL CORPORATION
    Inventor: Eisuke HAYAKAWA
  • Publication number: 20230183112
    Abstract: The present invention provides advanced livestock wastewater treatment systems, devices and methods for simultaneous removal of nitrate (nitrite) from treated wastewater at cathode chamber and of organics, suspended solids and malodor (caused by volatile fatty acids) from raw wastewater at anode chamber using anaerobic bioelectrochemical system (BES). The present invention provides a device comprising at least one anode chamber equipped inside with at least one anode, and at least one cathode chamber equipped inside with at least one cathode, wherein the anode chamber is attached to the cathode chamber via separator in order to transport anions or cations between the anode chamber and the cathode chamber.
    Type: Application
    Filed: December 7, 2022
    Publication date: June 15, 2023
    Applicant: OKINAWA INSTITUTE OF SCIENCE AND TECHNOLOGY SCHOOL CORPORATION
    Inventors: Mami KAINUMA, Anna PROKHOROVA, Rie HIYANE, Masaki KAZEOKA, Igor GORYANIN, Peter BABIAK
  • Patent number: 11677206
    Abstract: Embodiments of the microwave amplification system are described. In an embodiment, a microwave amplification system includes a microwave amplifier that contains a paramagnetic material with an impurity. The impurity has a plurality of nuclear spin and electron spin-based energy levels. The system includes an input to receive a pumping signal which is transmitted to the microwave amplifier to cause a population inversion in the impurity and excite it to one of the nuclear spin and electron spin-based energy levels. The system further includes another input to receive an input signal to be amplified by the microwave amplifier, the input signal having a lower power than the pumping signal. Once transmitted to the microwave amplifier, the input signal is amplified by the excited state of the impurity in the microwave amplifier thereby generating an amplified signal.
    Type: Grant
    Filed: March 2, 2020
    Date of Patent: June 13, 2023
    Assignee: Okinawa Institute of Science and Technology School Corporation
    Inventors: Yuimaru Kubo, Jason Robert Ball, Petr Moroshkin, Denis Konstantinov
  • Patent number: 11645574
    Abstract: A non-transitory, computer-readable recording medium stores therein a reinforcement learning program that uses a value function and causes a computer to execute a process comprising: estimating first coefficients of the value function represented in a quadratic form of inputs at times in the past than a present time and outputs at the present time and the times in the past, the first coefficients being estimated based on inputs at the times in the past, the outputs at the present time and the times in the past, and costs or rewards that corresponds to the inputs at the times in the past; and determining second coefficients that defines a control law, based on the value function that uses the estimated first coefficients and determining input values at times after estimation of the first coefficients.
    Type: Grant
    Filed: September 13, 2018
    Date of Patent: May 9, 2023
    Assignees: FUJITSU LIMITED KAWASAKI, JAPAN, OKINAWA INSTITUTE OF SCIENCE AND TECHNOLOGY SCHOOL CORPORATION
    Inventors: Tomotake Sasaki, Eiji Uchibe, Kenji Doya, Hirokazu Anai, Hitoshi Yanami, Hidenao Iwane
  • Patent number: 11573201
    Abstract: The present invention relates to a method for identifying a chemical structure of a wide variety of low molecular weight compounds using mass-to-charge ratio and collision cross section of fragment ions of an analyte compound. The analyte compound is ionized and fragmented, and the fragment ions are measured by a mass spectrometer with an ion mobility spectrometry measurement device. According to the present method, it does not depend on any compound class-specific characteristics or structural features, therefore enabling determinations of any classes of low molecular weight compounds, which does not limit to a specific compound class. The present invention comprises three methods which share a common data structure and s data processing method.
    Type: Grant
    Filed: June 14, 2019
    Date of Patent: February 7, 2023
    Assignee: OKINAWA INSTITUTE OF SCIENCE AND TECHNOLOGY SCHOOL CORPORATION
    Inventor: Eisuke Hayakawa
  • Patent number: 11573537
    Abstract: A non-transitory, computer-readable recording medium stores a program of reinforcement learning by a state-value function. The program causes a computer to execute a process including calculating a temporal difference (TD) error based on an estimated state-value function, the TD error being calculated by giving a perturbation to each component of a feedback coefficient matrix that provides a policy; calculating based on the TD error and the perturbation, an estimated gradient function matrix acquired by estimating a gradient function matrix of the state-value function with respect to the feedback coefficient matrix for a state of a controlled object, when state variation of the controlled object in the reinforcement learning is described by a linear difference equation and an immediate cost or an immediate reward of the controlled object is described in a quadratic form of the state and an input; and updating the feedback coefficient matrix using the estimated gradient function matrix.
    Type: Grant
    Filed: September 13, 2018
    Date of Patent: February 7, 2023
    Assignees: FUJITSU LIMITED, OKINAWA INSTITUTE OF SCIENCE AND TECHNOLOGY SCHOOL CORPORATION
    Inventors: Tomotake Sasaki, Eiji Uchibe, Kenji Doya, Hirokazu Anai, Hitoshi Yanami, Hidenao Iwane
  • Publication number: 20220399560
    Abstract: The present invention relates to a bio electrochemical system for the treatment of organic liquid wastes. The bio electrochemical system comprises a container; at least one tube shaped separator vertically disposed such that it penetrates the container; at least one anode disposed in the external space of the tube shaped separator; at least one cathode disposed in the interior space of the tube shaped separator; and at least one partition plate horizontally disposed such that it forms multistage horizontal flow channels for organic liquid wastes in the container.
    Type: Application
    Filed: August 7, 2020
    Publication date: December 15, 2022
    Applicant: OKINAWA INSTITUTE OF SCIENCE AND TECHNOLOGY SCHOOL CORPORATION
    Inventors: Viacheslav FEDOROVICH, Igor GORYANIN, Tomoharu INOUE
  • Publication number: 20220372584
    Abstract: It is an object of the present invention to provide an RNA aptamer that specifically binds histamine. The present invention is related to an nucleic acid aptamer that binds to histamine, comprising the base sequence (i) or (ii) below: (i) the base sequence of SEQ ID NO: 1; (ii) the base sequence comprising substitution(s), deletion(s), and/or addition(s) of 1 to 3 base(s) in the base sequence of SEQ ID NO: 1.
    Type: Application
    Filed: February 18, 2020
    Publication date: November 24, 2022
    Applicant: OKINAWA INSTITUTE OF SCIENCE AND TECHNOLOGY SCHOOL CORPORATION
    Inventors: Yohei YOKOBAYASHI, Mohammed Essameldin Ibrahim Mohammed DWIDAR
  • Patent number: 11505739
    Abstract: An organic long-persistent luminescent composition containing a first organic compound, a second organic compound and a third organic compound and satisfying the following expression (1) is a long-persistent luminescent material that facilitates emission color control. ES1(A) represents a lowest excited singlet energy level of emission from the first organic compound and the second organic compound, ES1(B) represents a lowest excited singlet energy level of the third organic compound. ES1(B)?ES1(A)?0.
    Type: Grant
    Filed: August 7, 2018
    Date of Patent: November 22, 2022
    Assignee: OKINAWA INSTITUTE OF SCIENCE AND TECHNOLOGY SCHOOL CORPORATION
    Inventors: Ryota Kabe, Kazuya Jinnai, Chihaya Adachi
  • Patent number: 11465966
    Abstract: A cyclopropanation method includes reacting an alcohol, an ester, or an aldehyde with a sulfone in an organic solvent containing a base providing a counter cation to form a cyclopropane; and isolating the cyclopropane. When using the alcohol or ester, the organic solvent further contains a catalyst having an alcohol dehydrogenation activity.
    Type: Grant
    Filed: August 17, 2018
    Date of Patent: October 11, 2022
    Assignee: OKINAWA INSTITUTE OF SCIENCE AND TECHNOLOGY SCHOOL CORPORATION
    Inventor: Eugene Khaskin
  • Publication number: 20220306671
    Abstract: The present invention provides a novel process for preparing an oligosaccharide C-glycoside derivative of formula I, comprising reacting a compound of formula II with compound of formula III in the presence of at least one primary or secondary amine and at least one additive [in the formulae, the substituents are as defined herein], and novel oligosaccharide C-glycoside derivatives that can be prepared using the process.
    Type: Application
    Filed: June 15, 2022
    Publication date: September 29, 2022
    Applicant: OKINAWA INSTITUTE OF SCIENCE AND TECHNOLOGY SCHOOL CORPORATION
    Inventors: Fujie TANAKA, Sherida JOHNSON
  • Patent number: 11447858
    Abstract: A system and method for fabricating perovskite films for solar cell applications are provided, the system including a housing for use as a vacuum chamber, a substrate stage coupled to the top section of the housing; a first evaporator unit coupled to the bottom section of the housing and configured to generate BX2 (metal halide material) vapor; a second evaporator unit coupled to the housing and configured to generate AX (organic material) vapor; and a flow control unit coupled to the housing for controlling circulation of the AX vapor. The dimensions of the horizontal cross-sectional shape of the first evaporator unit, the dimensions of the horizontal cross-sectional shape of the substrate stage, and the relative position in the horizontal direction between the two horizontal cross-sectional shapes are configured to maximize the overlap between the two horizontal cross-sectional shapes.
    Type: Grant
    Filed: December 21, 2018
    Date of Patent: September 20, 2022
    Assignee: OKINAWA INSTITUTE OF SCIENCE AND TECHNOLOGY SCHOOL CORPORATION
    Inventors: Yabing Qi, Luis Katsuya Ono, Shenghao Wang
  • Patent number: 11401293
    Abstract: The present invention provides a novel process for preparing an oligosaccharide C-glycoside derivative of formula I, comprising reacting a compound of formula II with compound of formula III in the presence of at least one primary or secondary amine and at least one additive [in the formulae, the substituents are as defined herein], and novel oligosaccharide C-glycoside derivatives that can be prepared using the process.
    Type: Grant
    Filed: March 22, 2019
    Date of Patent: August 2, 2022
    Assignee: OKINAWA INSTITUTE OF SCIENCE AND TECHNOLOGY SCHOOL CORPORATION
    Inventors: Fujie Tanaka, Sherida Johnson
  • Patent number: 11372199
    Abstract: Systems and methods for generating extreme ultraviolet radiation from plasma are described herein. In an embodiment, gas is provided to a gas target within a vacuum chamber. A pulse laser or a pulse laser-driven wavelength conversion system provides a beam which is focused through a lens or microscope object onto the gas target to produce plasma. A collection mirror is then used to guide an extreme ultraviolet radiation beam from the plasma to a target location.
    Type: Grant
    Filed: April 10, 2020
    Date of Patent: June 28, 2022
    Assignee: OKINAWA INSTITUTE OF SCIENCE AND TECHNOLOGY SCHOOL CORPORATION
    Inventors: Julien Dominique Georges Madeo, Michael K. L. Man, Keshav M. Dani
  • Publication number: 20220170926
    Abstract: A method for making a plasmonic mushroom array includes: forming a plurality of metal nano-islands each having nanometer-range dimensions on a surface of a glass substrate; and subjecting to the glass substrate having the plurality of metal nano-islands formed thereon to reactive ion etching such that the plurality of metal nano-islands are converted to a plurality of mushroom-shaped structures each having a metal cap supported by a pillar made of a material of the glass substrate and each having dimensions smaller than the dimensions of the nano-islands, the plurality of mushroom-shaped structures being arranged in a substantially regular pattern with intervals smaller than average intervals between the nano-islands, thereby forming the plurality of nano-scale mushroom-shaped structures on the glass substrate that can exhibit localized surface plasmon resonance.
    Type: Application
    Filed: February 22, 2022
    Publication date: June 2, 2022
    Applicant: OKINAWA INSTITUTE OF SCIENCE AND TECHNOLOGY SCHOOL CORPORATION
    Inventors: Nikhil Bhalla, Amy Shen Fried, Kang-Yu Chu
  • Patent number: 11293101
    Abstract: A method for fabricating a perovskite film includes the steps of: placing a substrate on a substrate stage in a chamber, the substrate stage configured to rotate around its central axis at a rotation speed; depositing first source materials on the substrate from a first set of evaporation units, each coupled to the side section or the bottom section of the chamber; depositing second source materials on the substrate from a second set of evaporation units coupled to the bottom section, wherein the chamber includes a shield defining two or more zones having respective horizontal cross-sectional areas, which are open and facing the substrate, designated for the two or more evaporation units in the second set. The perovskite film includes multiple unit layers each being formed by one rotation of the substrate stage, and having composition and thickness thereof controlled by adjusting evaporation rates, rotation speed and horizontal cross-sectional areas.
    Type: Grant
    Filed: March 19, 2019
    Date of Patent: April 5, 2022
    Assignee: OKINAWA INSTITUTE OF SCIENCE AND TECHNOLOGY SCHOOL CORPORATION
    Inventors: Yabing Qi, Luis Ono, Shenghao Wang
  • Patent number: 11293920
    Abstract: A method for making a plasmonic mushroom array includes: forming a plurality of metal nano-islands each having nanometer-range dimensions on a surface of a glass substrate; and subjecting to the glass substrate having the plurality of metal nano-islands formed thereon to reactive ion etching such that the plurality of metal nano-islands are converted to a plurality of mushroom-shaped structures each having a metal cap supported by a pillar made of a material of the glass substrate and each having dimensions smaller than the dimensions of the nano-islands, the plurality of mushroom-shaped structures being arranged in a substantially regular pattern with intervals smaller than average intervals between the nano-islands, thereby forming the plurality of nano-scale mushroom-shaped structures on the glass substrate that can exhibit localized surface plasmon resonance.
    Type: Grant
    Filed: April 18, 2018
    Date of Patent: April 5, 2022
    Assignee: OKINAWA INSTITUTE OF SCIENCE AND TECHNOLOGY SCHOOL CORPORATION
    Inventors: Nikhil Bhalla, Amy Shen Fried, Kang-Yu Chu
  • Patent number: 11264630
    Abstract: The present invention relates to a process for preparing a supported catalytic material, wherein the said process comprises a step of heating a precursor of support material which has been impregnated with a mixture of chemical precursors, wherein the said mixture includes a nitrogen-containing reducing reagent as a precursor and a transition-metal-containing compound as a precursor.
    Type: Grant
    Filed: February 27, 2018
    Date of Patent: March 1, 2022
    Assignee: OKINAWA INSTITUTE OF SCIENCE AND TECHNOLOGY SCHOOL CORPORATION
    Inventors: Geoffrey Kellogg Schaffer-Harris, Viacheslav Fedorovich, Igor Goryanin, Lukasz Michal Szydlowski, David James Wilpault Simpson, Georgy Filonenko
  • Publication number: 20210276954
    Abstract: The present invention relates to a process for preparing 3-pyrrolidine carboxylic acid derivatives, and particularly a simple process for preparing 5-substituted 3-pyrrolidine carboxylic acid derivatives. In addition, the present invention relates to a novel pyrrolidine carboxylic acid derivative, its manufacture, pharmaceutical compositions containing it and its use as a catalyst.
    Type: Application
    Filed: March 25, 2021
    Publication date: September 9, 2021
    Applicant: OKINAWA INSTITUTE OF SCIENCE AND TECHNOLOGY SCHOOL CORPORATION
    Inventors: Fujie TANAKA, Feng YIN