Okinawa Institute of Science and Technology

www.oist.jp
Okinawa, Japan

The Okinawa Institute of Science and Technology Graduate University is an interdisciplinary graduate school located in Onna, Okinawa Prefecture, Japan. The school offers a 5-year PhD program in Science. Over half of the faculty and students are recruited from outside Japan, and all education and research is conducted entirely in English.The university has no departments—OIST researchers conduct multi-disciplinary research in neuroscience, mathematical and computational science, physics, chemistry, integrative biology and molecular, cell, and developmental biology. The university received accreditation on November 1, 2011, and began classes in September 2012.OIST relies on public subsidies paid by the Japanese government. The government subsidy for OIST comes in two areas: a subsidy for operations and a subsidy for facilities. Wikipedia.

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Patent
Okinawa Institute of Science and Technology | Date: 2017-06-28

A system and method for fabricating a perovskite film is provided, the system including a housing for use as a CVD furnace having first and second sections coupled with first and second temperature control units, respectively. The first and second sections correspond substantially to the upstream and downstream of gases, respectively. One or more substrates are loaded in the second section and controlled by the second temperature control unit, and an evaporation unit containing an organic halide material is loaded in the first section and controlled by the first temperature control unit. Each of the substrates is pre-deposited with a metal halide material. The inside of the housing is pumped down to a low pressure.


Patent
Okinawa Institute of Science and Technology | Date: 2017-06-14

A system and method for fabricating a perovskite film is provided, the system including a substrate stage configured to rotate around its central axis at a rotation speed, a first set of evaporation units, each coupled to the side section or the bottom section of the chamber, a second set of evaporation units coupled to the bottom section, and 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 resultant perovskite film includes multiple unit layers, wherein each unit layer is formed by one rotation of the substrate stage, and the composition and thickness of the unit layer are controlled by adjusting at least the evaporation rates, the rotation speed and the horizontal cross-sectional areas.


Patent
Okinawa Institute of Science and Technology | Date: 2017-06-14

A soft magnetic nanoparticle comprising an iron aluminide nanoalloy of the DO3 phase as a core encapsulated in an inert shell made of alumina.


Patent
Okinawa Institute of Science and Technology | Date: 2017-05-24

A wave energy converter system includes a plurality of wave energy converter units installed at or adjacent to a shoreline to receive water flows caused by ocean waves approaching the shoreline, each of the wave energy converter units including: a generator having a rotor shaft, the generator being configured to generate electricity in accordance with rotation of the rotor shaft; and a plurality of blades attached to the rotor shaft, the plurality of blades causing the rotor shaft of the generator to rotate in response to the water flows that impinge on the blades, thereby generating electricity; and a power conditioner installed onshore to receive the electricity generated by each of the plurality of wave energy converter units, the power conditioner providing consolidated electricity to an external power grid.


Patent
Okinawa Institute of Science and Technology | Date: 2017-03-15

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.


Patent
Okinawa Institute of Science and Technology | Date: 2017-07-19

The present invention relates to novel 4-substituted pyridine-2,6-dicarboxylic acid derivatives, compounds of formula I, wherein R1 and R2are defined herein. The compounds of formula I are useful for making pharmaceutical compositions to treat proliferative diseases. The present invention also relates to concise methods for preparing compounds of formula I that may be performed under mild reaction conditions.


Patent
Okinawa Institute of Science and Technology | Date: 2017-02-06

A method of inverse reinforcement learning for estimating reward and value functions of behaviors of a subject includes: acquiring data representing changes in state variables that define the behaviors of the subject; applying a modified Bellman equation given by Eq. (1) to the acquired data: where r(x) and V(x) denote a reward function and a value function, respectively, at state x, and represents a discount factor, and b(y|x) and (y|x) denote state transition probabilities before and after learning, respectively; estimating a logarithm of the density ratio (x)/b(x) in Eq. (2); estimating r(x) and V(x) in Eq. (2) from the result of estimating a log of the density ratio (x,y)/b(x,y); and outputting the estimated r(x) and V(x).


Patent
Okinawa Institute of Science and Technology | Date: 2016-08-15

The present invention relates to a method for screening a compound that inhibits secretion of toxins into host-cell cytoplasm by virulent bacteria using a needle type III secretion system. The compound of the invention is selected by screening for a compound which interacts with a loop region of the cytoplasmic domain of the membrane protein FlhB from Salmonella typhimurium or a paralog thereof Compositions including the compound of the invention, use of the compound, and methods of treating disorders caused by virulent bacteria are also provided.


Patent
Okinawa Institute of Science and Technology | Date: 2017-06-14

A method of inverse reinforcement learning for estimating cost and value functions of behaviors of a subject includes acquiring data representing changes in state variables that define the behaviors of the subject; applying a modified Bellman equation given by Eq. (1) to the acquired data: q(x)+gV(y)-V(x)=-ln{pi(y|x))/(p(y|x)} (1) where q(x) and V(x) denote a cost function and a value function, respectively, at state x, g represents a discount factor, and p(y|x) and pi(y|x) denote state transition probabilities before and after learning, respectively; estimating a density ratio pi(y|x) / p(y|x) in Eq. (1); estimating q(x) and V(x) in Eq. (1) using the least square method in accordance with the estimated density ratio pi(y|x) / p(y|x), and outputting the estimated q(x) and V(x).


Patent
Okinawa Institute of Science and Technology | Date: 2017-04-12

A method and system for obtaining force are provided, wherein the system includes a block made of a photoelastic material having multiple surfaces including a first surface on which an object is exerting the force to the block, and one or more polariscopes configured around the block, and wherein the method includes measuring photoelastic intensities by using three polariscopes simultaneously and obtaining each set of the photoelastic intensities sequentially in time to obtain a sequence of measured photoelastic intensities, and obtaining the force by using an optimization method based on the quantity associated with the difference between the measured and predicted photoelastic intensities.

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