| Patent application number | Description | Published |
|---|
| 20080283458 | Separation column and liquid chromatography apparatus using the same - Disclosed herein is a separation column comprising a porous block covered with a coating wherein space-free adhesion is attainable therebetween by low temperature process without releasing octadecylsilyl bases and others from the porous block. | 11-20-2008 |
| 20080296209 | LIQUID CHROMATOGRAPH DEVICE - This liquid feeding system has the first and second pumps each of which is provided with a plunger. Liquid sucked through each of the pump suction ports is discharged out of the discharging port through the first pump and/or second pump. Under the starting operation mode, the second pump is stopped and only the first pump is operated. When the discharging pressure at the discharging port reaches up to a predetermined value, the starting operation mode is changed over to the normal operation mode. Under the normal operation mode, the first pump is stopped and only the second pump is operated. | 12-04-2008 |
| 20090057227 | LIQUID DELIVERY DEVICE, LIQUID CHROMATOGRAPH, AND METHOD FOR OPERATION OF LIQUID DELIVERY DEVICE - The present invention provides a liquid delivery device for liquid chromatographs which, by performing liquid delivery at an accurate flow rate with limited pulsation, gives accurate results of analyses. The present invention, with a view to preventing erroneous operation due to errors in measurements at the time of judgment of completion of compression of liquid, establishes the judgment point before the pressure measured by a cylinder pressure detector agrees with the pressure measured by a discharge pressure detector and also calculates the point of completion of compression. Control in this manner prevents pressure fluctuation. It also calculates for control the point of completion of compression from the history of compression performed previously. | 03-05-2009 |
| 20090090173 | LIQUID CHROMATOGRAPHY APPARATUS AND LIQUID CHROMATOGRAPHY ANALYSIS METHOD - An object of the present invention is to improve the accuracy in analysis repeatability of a liquid chromatography apparatus that feeds different eluent by use of a plurality of pumps and achieves the mixture of eluent. | 04-09-2009 |
| 20090193879 | SOLVENT DELIVERY DEVICE AND ANALYTICAL SYSTEM - Disclosed herein is a stable solvent delivery device capable of delivering solvent both at high pressure and at constant flow rate. | 08-06-2009 |
| 20090218267 | SEPARATION COLUMN AND LIQUID CHROMATOGRAPH - The present invention provides a separation column including a monolithic rod without a resin coating material. The separation column can prevent the monolithic rod from destroying, and a liquid can be delivered at a high pressure into the separation column. The separation column includes the monolithic rod (monolithic silica rod) in a tapered-columnar shape, and a clad with the interior formed in a tapered-columnar shape. The monolithic rod is built into the clad. | 09-03-2009 |
| 20100288027 | PUMP FOR LIQUID CHROMATOGRAPH - A pump device is realized, which accurately detects a flow rate of a pump, performs real-time control of the flow rate, and thus can suppress a flow rate error caused by occurrence of pulsation. Control of a pump rotation speed by a pressure sensor has low responsiveness in a low pressure region, and a correlation between a pressure and a flow rate is incomplete in a high flow rate region. With this taken into consideration, a flow rate sensor | 11-18-2010 |
| 20110042283 | LIQUID DELIVERY DEVICE, LIQUID CHROMATOGRAPH, AND METHOD FOR OPERATION OF LIQUID DELIVERY DEVICE - The present invention provides a liquid delivery device for liquid chromatographs which, by performing liquid delivery at an accurate flow rate with limited pulsation, gives accurate results of analyses. The present invention, with a view to preventing erroneous operation due to errors in measurements at the time of judgment of completion of compression of liquid, establishes the judgment point before the pressure measured by a cylinder pressure detector agrees with the pressure measured by a discharge pressure detector and also calculates the point of completion of compression. Control in this manner prevents pressure fluctuation. It also calculates for control the point of completion of compression from the history of compression performed previously. | 02-24-2011 |
| 20110104703 | NUCLEIC ACID ANALYZER, AUTOMATIC ANALYZER, AND ANALYSIS METHOD - This invention relates to a nucleic acid analyzer comprising: reaction containers capable of containing nucleic-acid-containing samples and reagents; an incubation mechanism capable of controlling temperatures of reaction containers set at different levels; an analysis mechanism for analyzing the samples contained in the reaction containers; and a transport mechanism for transporting a reaction container. In accordance with the assay technique to be performed on a nucleic-acid-containing sample, the transport mechanism transports a reaction container to a given incubation mechanism in a given order. The reaction container subjected to the process of sample preparation is transported to the analysis mechanism at a given time and the sample is analyzed. | 05-05-2011 |
