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公开(公告)号：US20220306671A1
公开(公告)日：2022-09-29
申请号：US17841241
申请日：2022-06-15
Inventor： Fujie TANAKA , Sherida JOHNSON
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.
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公开(公告)号：US11447858B2
公开(公告)日：2022-09-20
申请号：US16230095
申请日：2018-12-21
Inventor： Yabing Qi , Luis Katsuya Ono , Shenghao Wang
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.
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公开(公告)号：US20220119702A1
公开(公告)日：2022-04-21
申请号：US17475718
申请日：2021-09-15
Inventor： Ryota KABE , Takashi TACHIKAWA
IPC: C09K11/06
Abstract: Photostimulated luminescence, which allows energy or data to be stored and released using electromagnetic waves as both the input and output, has attracted considerable interest in the fields of biomedical and informatics technologies, but this phenomenon is mostly limited to solid inorganic materials. Here, we report photostimulated luminescence from purely organic blend films composed of electron donor, acceptor, and trap/emitter molecules. In the films, charges are accumulated as radical ions by ultraviolet light irradiation and then extracted by near infrared light irradiation to produce visible light. Films are capable of multiple cycles (>10 times) of organic photostimulated luminescence, which was still observable from films left in the dark at room temperature for one week after excitation, and emission color could be varied by changing the trap/emitter molecules. These findings will broadly impact existing applications and provide new prospects for innovative flexible devices.
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公开(公告)号：US11293920B2
公开(公告)日：2022-04-05
申请号：US16606037
申请日：2018-04-18
Inventor： Nikhil Bhalla , Amy Shen Fried , Kang-Yu Chu
IPC: G01N21/75 , G01N33/543 , C03C17/09 , G01N21/552 , G01N21/41
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.
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公开(公告)号：US11264630B2
公开(公告)日：2022-03-01
申请号：US16480848
申请日：2018-02-27
Inventor： Geoffrey Kellogg Schaffer-Harris , Viacheslav Fedorovich , Igor Goryanin , Lukasz Michal Szydlowski , David James Wilpault Simpson , Georgy Filonenko
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.
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Patent Agency Ranking
公开(公告)号：US20210080411A1
公开(公告)日：2021-03-18
申请号：US16982428
申请日：2019-04-17
Inventor： Keshav Moreshwar Dani , Michael Ka Lun Man , E Laine Wong
IPC: G01N23/227
Abstract: A system and method for redistributing photoexcited electrons and generate local currents within an optical spot on ultrafast timescales achieving in high-speed, high-resolution control of opto-electronic phenomena is disclosed. Selectively addressing sub-populations of photoexcited electrons within the distribution is necessary. By exploiting the spatial intensity variations in an ultrafast light pulse, local surface fields are generated within the photoexcitation spot of a doped semiconductor, which pull apart the photoexcited electrons into two separate distributions. This redistribution process can be controlled via the spatial profile and intensity of the photoexciting pulse.
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公开(公告)号：US20210046476A1
公开(公告)日：2021-02-18
申请号：US17010180
申请日：2020-09-02
Inventor： Amy Shen FRIED , Sebastien Georg Gabriel RICOULT
IPC: B01L3/00 , C12M1/00 , G01N33/543 , G01N33/552
Abstract: It is an object of the present invention to achieve rapid surface patterning of biomolecules within microfluidic devices with high reproducibility. In this work, we present a new means of creating micro- and nano-patterns of aminosilanes within microfluidic devices via an aqueous based microcontact printing technique. To minimize the diffusion of molecules into the PDMS stamp, we use water as the inking solvent and enforce short incubation and contact times during the printing process to preserve the pre-defined resolution of patterned features. These patterns then serve as the building block to couple multiple biomolecules in solution onto a single surface for subsequent bioassays.
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公开(公告)号：US20210017211A1
公开(公告)日：2021-01-21
申请号：US17040346
申请日：2019-03-22
Inventor： Fujie TANAKA , Sherida JOHNSON
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.
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公开(公告)号：US10896383B2
公开(公告)日：2021-01-19
申请号：US15425924
申请日：2017-02-06
Inventor： Eiji Uchibe , Kenji Doya
Abstract: 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: r ( x ) + γ V ( y ) - V ( x ) = ln π ( y | x ) b ( y | x ) , ( 1 ) = ln π ( x , y ) b ( x , y ) - ln π ( x ) b ( x ) , ( 2 ) where r(x) and V(x) denote a reward function and a value function, respectively, at state x, and γ represents a discount factor, and b(y|x) and π(y|x) denote state transition probabilities before and after learning, respectively; estimating a logarithm of the density ratio π(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 π(x,y)/b(x,y); and outputting the estimated r(x) and V(x).
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公开(公告)号：US10215923B2
公开(公告)日：2019-02-26
申请号：US16036517
申请日：2018-07-16
Inventor： Rafino Miguel James Murphy , Fuchuan Lei , Jonathan Ward , Sile Nic Chormaic , Yong Yang
IPC: G02B6/26 , C03B37/15 , B23K26/00 , B23K26/073 , B23K26/06 , B23K26/04 , B23K26/354 , B23K26/352 , B23K26/0622
Abstract: A tunable, all-optical, coupling method for a high-Q silica microsphere and an optical waveguide is disclosed. By means of a novel optical nanopositioning method, induced thermal expansion of an asymmetric microsphere stem for laser powers up to 211 mW is observed and used to fine tune the microsphere-waveguide coupling. Microcavity displacements ranging from (0.61±0.13)-(3.49±0.13) μm and nanometer scale sensitivities varying from (2.81±0.08)-(17.08±0.76) nm/mW are obtained. Additionally, an apparent linear dependency of coupling distance on stem laser heating is achieved. Using these methods, coupling can be altered such that the differing and customizable coupling regimes can be achieved.
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