JEOL RESONANCE INC. Patent applications |
Patent application number | Title | Published |
20140097843 | NMR Spinner - There is disclosed an NMR (nuclear magnetic resonance) spinner having a turbine structure and a rotor whose spinning rate can be increased. A vortical channel ( | 04-10-2014 |
20140070806 | NMR Measurement Method - A method of NMR measurement which achieves background suppression based on a technique employing differences in RF magnetic field strength while alleviating the problem that less latitude is allowed in setting the number of signal accumulations. This method suppresses a background-derived signal emanating from the material of an NMR probe. The method starts with applying an RF pulse sequence consisting of a 90° pulse and subsequent one or more 180° pulses to a sample to induce an NMR signal and detecting the signal. This application is repeated while varying the RF phases of the pulses to induce NMR signals in accordance with a cogwheel phase-cycling scheme to induce NMR signals. The NMR signals are detected. The detected NMR signals are accumulated. | 03-13-2014 |
20140055139 | NMR Detection Probe - A cooled NMR detection probe including a detection coil and an internal structure ( | 02-27-2014 |
20140055138 | NMR Detection Module - An NMR (nuclear magnetic resonance) detection module (such as an NMR probe) mounted in a vacuum vessel permits a transmit/receive coil to be cooled efficiently and to be placed closer to a sample container. The NMR detection module includes a core module (detection module) ( | 02-27-2014 |
20130307543 | NMR Sample Tube and NMR Spectrometer - An NMR sample tube is offered which can be spun at high speed stably. The NMR sample tube is adapted for use in solid-state NMR spectroscopy and includes a tubular member, spacers, and cover bodies. The spacers are disposed inside the tubular member. Each spacer has first and second surfaces located on opposite sides. The first surfaces of the spacers define a space filled up with a sample. The tubular member has openings which are closed off by the cover bodies. | 11-21-2013 |
20130271138 | Method for NMR Measurements on Quadrupolar Nuclei - A method is offered which permits NMR measurements of integer spin nuclei to be performed at higher sensitivity than heretofore. In particular, the method enables high-resolution multidimensional correlation NMR measurements on integer spin nucleus S having integer spin S and nucleus I of other spin species. The method starts with applying an RF magnetic field having a frequency that is n times (where n is an integer equal to or greater than 2) the Larmor frequency of the integer spin nucleus S to the spin S. Magnetization transfer is effected between the nucleus I and the integer spin nucleus S. | 10-17-2013 |
20130207656 | NMR Probe - An NMR probe has a sample tube insertion port for introducing and withdrawing the sample tube into and from the probe, a sample tube support providing support of the sample tube during NMR measurements, a tubular sample tube passage connecting together the sample tube insertion port and the sample tube support and capable of transporting the sample tube between them, and a gas stream generator for producing a gas stream in the sample tube passage to move the sample tube between the sample tube insertion port and the tube support. The gas stream generator is mounted at an intermediate (non-end) position in the sample tube passage. | 08-15-2013 |
20130178367 | NMR Spectrometer and Method of Setting Up the Same - An NMR spectrometer and method in the following three steps are performed. (1) An external magnetic field is set to H | 07-11-2013 |
20130088232 | Solid-State NMR Spectrometer, Sample Holder Therefor, and Method of Solid-State NMR Spectroscopy - A high-resolution solid-state NMR spectrometer which can measure a disklike sample. The spectrometer includes: a stator having an air bearing disposed within the static magnetic field, the rotor being disposed in the stator; and an engaging mechanism mounted in a one-end portion of the rotor and detachably holding a sample holder that holds the disklike sample. | 04-11-2013 |
20130030749 | Nuclear Magnetic Resonance Spectrometer and Method of Magnetic Field Correction - In a nuclear magnetic resonance (NMR) spectrometer, a sample spins about an axis tilted at a magic angle, a corrective magnetic field generating portion produces a corrective magnetic field, and a control portion controls the operation of the corrective magnetic field generating portion. An arithmetic unit included in the control portion uses at least one of B | 01-31-2013 |
20120105062 | Method of Controlling Static Magnetic Field in NMR Spectrometer - A method of controlling the static magnetic field in an NMR spectrometer in such a way that the magnetic field can be homogenized even if there is a temperature gradient across a sample tube. A distribution of resonance frequencies and chemical shift differences within the sample tube is found by NMR measurements for each of two peaks of a calibration sample. A temperature distribution is found based on the distribution of the chemical shift differences. A distribution of chemical shifts of a solvent used for the measurements is found, based on the temperature distribution in the sample tube. Shimming is done using magnetic field gradients based on the distribution of the chemical shifts of the solvent. | 05-03-2012 |
20110288802 | Spectrometer, Measuring Apparatus, and Method of Data Processing - A spectrometer has: Accumulation means to obtain a data set containing N data points, repeating the measurement M times to obtain M spectral data sets or time-domain data sets S | 11-24-2011 |