Kuwabata
Susumu Kuwabata, Suita-Shi JP
Patent application number | Description | Published |
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20110057100 | Transmission Electron Microscope, and Method of Observing Specimen - Provided is means which enables observation of the shape of a specimen as it is without deforming the specimen. Observation is made by allowing a specimen-holding member having an opening (for example, microgrid and mesh) to hold an ionic liquid and charging a specimen thereto, to allow the specimen to suspend in the ionic liquid. Furthermore, in the proximity of the specimen-holding member, a mechanism of injecting an ionic liquid (ionic liquid introduction mechanism) and/or an electrode are provided. When a voltage is applied to the electrode, the specimen moves or deforms in the ionic liquid. How the specimen moves or deforms can be observed. Furthermore, in the proximity of specimen-holding member, an evaporation apparatus is provided to enable charge of the specimen into the ionic liquid while evaporating. Furthermore, in the proximity of the specimen-holding member, a microcapillary is provided to charge a liquid-state specimen into the ionic liquid. Note that the specimen-holding member is designed to be rotatable. | 03-10-2011 |
20140264017 | Transmission Electron Microscope, and Method of Observing Specimen - Provided is means which enables observation of the shape of a specimen as it is without deforming the specimen. Observation is made by allowing a specimen-holding member having an opening (for example, microgrid and mesh) to hold an ionic liquid and charging a specimen thereto, to allow the specimen to suspend in the ionic liquid. Furthermore, in the proximity of the specimen-holding member, a mechanism of injecting an ionic liquid (ionic liquid introduction mechanism) and/or an electrode are provided. When a voltage is applied to the electrode, the specimen moves or deforms in the ionic liquid. How the specimen moves or deforms can be observed. Furthermore, in the proximity of specimen-holding member, an evaporation apparatus is provided to enable charge of the specimen into the ionic liquid while evaporating. Furthermore, in the proximity of the specimen-holding member, a microcapillary is provided to charge a liquid-state specimen into the ionic liquid. Note that the specimen-holding member is designed to be rotatable. | 09-18-2014 |
Susumu Kuwabata, Osaka JP
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20090306394 | Method for Producing Nanoparticles - The present invention provides a method for producing nanoparticles by attaching atoms or molecules constituting a nanoparticle precursor to an ionic liquid. According to this method, it is possible to produce nanoparticles that do not aggregate easily in a liquid without its surface modification. Furthermore, it is possible to produce nanoparticles without the need for a complicated operation or the formation of a by-product because of the direct production of the nanoparticles from the nanoparticle precursor. | 12-10-2009 |
20100004138 | Reagent for detecting biopolymer and method for detecting biopolymer - Detects the presence of binding between a sample biopolymer and a probe biopolymer and the amount of binding, without modifying the sample biopolymer in any way. The present invention provides a reagent for biopolymer detection comprising semiconductor nanoparticles on which a functional group having a positive or negative charge is exposed, and a method for biopolymer detection which detects the presence of binding between a sample biopolymer and a probe biopolymer and the amount of binding by electrostatically binding a semiconductor nanoparticle on which a functional group having a positive or negative charge is exposed to a negative or positive charge of the sample biopolymer. | 01-07-2010 |
20100215970 | METHOD FOR SUPPORTING METAL NANOPARTICLES AND METAL NANOPARTICLES-CARRYING SUBSTRATE - A metal nano particle can be supported and immobilized on a substrate uniformly. Thus, disclosed is a method for supporting a nano metal particle, which comprises applying a silane coupling agent having at least one functional group capable of capturing a metal (e.g., an imidazole group, an amino group, a diamino group, a mercapto group, and a vinyl group) in its molecule on a substrate, and then contacting the silane coupling agent with a nano particle of a metal (e.g., gold, platinum, silver, copper, palladium, nickel, cobalt), wherein the silane coupling agent may be produced by the reaction between an azole compound with an epoxysilane compound, and wherein the metal nano particle to be contacted with the silane coupling agent is preferably coated with an ionic fluid. Also disclosed is a substrate having a metal nano particle supported thereon, which is produced by the method. | 08-26-2010 |
Susumu Kuwabata, Ibaraki-Shi JP
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20090278094 | Semiconductor nanoparticle and method of producing the same - The present invention provides semiconductor nanoparticles which emit light at room temperature and include a sulfide or oxide containing zinc, a Group 11 element in the periodic table, and a Group 13 element in the periodic table as a main component or a sulfide or oxide containing a Group 11 element in the periodic table and a Group 13 element in the periodic table as a main component. For example, the semiconductor nanoparticles are represented by Zn | 11-12-2009 |
20120074361 | SEMICONDUCTOR NANOPARTICLES AND METHOD FOR PRODUCING SAME - Copper(II) acetate, zinc(II) acetate, and tin(IV) acetate are weighed so that the total amount of metal ions is 2.0×10 | 03-29-2012 |
20120219800 | METHOD FOR PRODUCING HOLLOW NANOPARTICLE, HOLLOW NANOPARTICLE, AND DISPERSION LIQUID THEREOF - First, an ionic liquid is placed on a glass slide, which is then installed in an evaporation apparatus, and a metal (for example, indium) is mounted as a target material at a position facing the ionic liquid, followed by sputter deposition of the metal. After sputtering, the ionic liquid containing nanoparticles dispersed therein is recovered. The nanoparticles are solid nanoparticles. Next, the ionic liquid containing the solid nanoparticles dispersed therein is placed in a test tube and then oxidized by heating in air at 250° C. for 1 hour. As a result, hollow nanoparticles having cavities formed in core portions of the solid nanoparticles are produced. | 08-30-2012 |
Susumu Kuwabata, Ibaraki JP
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20090173882 | Liquid Medium For Preventing Charge-Up in Electron Microscope and Method of Observing Sample Using The Same - An object of the present invention is to provide a medium; a specimen; a method for preparing the specimen; a method for observing the specimen; a sample cell; and an electron microscope capable of easily solving the problem of charge-up and further capable of observing a real shape or the like of a sample with a SEM, a TEM or the like. For the purpose of achieving the above-described object, the present invention uses an electrical conductivity-imparting liquid medium, for use in a microscope, which includes an ionic liquid as an essential component thereof and is impregnated into the entirety of a SEM or TEM sample or applied to the observation surface of a SEM or TEM sample to impart electrical conductivity at least to the observation surface of the sample. According to the present invention, the charge built up on the sample surface can be released simply by impregnating or coating the sample with the ionic liquid, and hence the problem of charge-up can be easily solved. Further, even when a sample impregnated or coated with the ionic liquid is placed under vacuum, the ionic liquid is not evaporated from the sample, and hence a biological sample can be observed as it is in an original shape. | 07-09-2009 |
20120292507 | Charged Particle Beam Device and Sample Observation Method - There is provided a charged particle beam device which has a mechanism adjusting the shape of an ionic liquid droplet to be adhered to a sample and the thickness of a film of the ionic liquid, in such a manner that they are suitable for various types of observations by an electronic microscope and the like, and for processing using ion beams. | 11-22-2012 |
20130221217 | METHOD FOR SCANNING ELECTRON MICROSCOPE OBSERVATION OF SAMPLE FLOATING ON LIQUID SURFACE - A micro sample floating on the surface of an ionic liquid is observed by scanning electron microscopy without the sample being covered with the ionic liquid. A floating or hydrophobic sample is floated on the surface of a hydrophilic ionic liquid aqueous solution to prevent the micro sample from being covered with the ionic liquid. A hydrophobic ionic liquid is used for hydrophilic samples. With the use of an ionic liquid aqueous solution of low viscosity and large flowability, the micro sample is allowed to freely aggregate, disperse, and align on the surface of the ionic liquid, and to refloat even when settled in the ionic liquid. For easy observation with a scanning electron microscope, the ionic liquid aqueous solution is dried to lower the flowability of the ionic liquid aqueous solution, after the form of the micro sample has stabilized and before electron microscope observation. | 08-29-2013 |