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| Number | Title | Issue Date |
| 6966346 | Gas supply apparatus and gas supply method This gas supply apparatus supplies a gas by vaporizing a liquefied gas filled in a gas container. This apparatus includes an installation stand having an upper surface on which the gas container is placed; at least one nozzle which discharges a heating medium toward... | 11/22/2005 |
| 6869579 | Process for treating exhaust gas A process for treating and recovering CVD exhaust gas is provided, which can reduce periodical maintenance by converting the raw gas employed and the intermediate products contained in the CVD system into highly volatile halides, separating and recovering them as ma... | 03/22/2005 |
| 6857324 | Method and apparatus for measuring concentrations of components of fluid A method and an apparatus for measuring the concentrations of the components of a fluid are described, which can be used to measure the concentrations of the components continuously in real time and to monitor a high pressure gas, and is suitably used for in-line mo... | 02/22/2005 |
| 6835287 | Apparatus, method for enrichment of the heavy isotope oxygen and production method for heavy oxygen water An apparatus comprising first to third columns, wherein the outlet of a first column reboiler and the inlet of a second column condenser are connected by a first introduction conduit, and the outlet of a second distillation column reboiler and the inlet of a third c... | 12/28/2004 |
| 6823743 | Method and apparatus for measuring concentrations of components of fluid A method and an apparatus for measuring the concentrations of the components of a fluid are described, which can be used to measure the concentrations of the components continuously in real time and to monitor a high pressure gas, and is suitably used for in-line mo... | 11/30/2004 |
| 6824588 | Apparatus and method for purifying air used in cryogenic air separation An apparatus and a method for purifying the air used in cryogenic air separation are described, which are capable of effectively removing nitrogen oxides and/or hydrocarbons. The apparatus comprises an adsorber comprising an adsorption cylinder that has a first adso... | 11/30/2004 |
| 6800855 | Spectroscopic method for analyzing isotopes by using a semiconductor laser The present invention provides a spectroscopic method for analyzing isotopes which makes it possible to simplify a system for measurement and to identify isotopes with high accuracy and sensitivity and to carry out quantitative analysis. The spectroscopic method for... | 10/05/2004 |
| 6794204 | Semiconductor manufacturing method and semiconductor manufacturing apparatus A semiconductor manufacturing method whereby reactive gas processing such as selective epitaxial growth can be carried out with high precision by correctly adjusting conditions during processing is performed by a semiconductor manufacturing apparatus which can restr... | 09/21/2004 |
| 6789583 | Gas supply apparatus and gas supply method This gas supply apparatus supplies a gas by vaporizing a liquefied gas filled in a gas container. This apparatus includes an installation stand having an upper surface on which the gas container is placed; at least one nozzle which discharges a beating medium toward... | 09/14/2004 |
| 6776805 | Semiconductor manufacturing apparatus having a moisture measuring device A semiconductor manufacturing method whereby reactive gas processing such as selective epitaxial growth can be carried out with high precision by correctly adjusting conditions during processing is performed by a semiconductor manufacturing apparatus which can restr... | 08/17/2004 |
| 6767386 | Method and apparatus for producing nitrogen CMS adsorbents having suitable indexes are used to improve greatly the performance of nitrogen-producing apparatuses where nitrogen is obtained from the air with a PSA method, so as to improve the efficiency of nitrogen production. A nitrogen PSA apparatus is formed... | 07/27/2004 |
| 6752851 | Gas separating and purifying method and its apparatus The gas separation and purification process can recover efficiently a valuable gas such as krypton and xenon to be used as an atmospheric gas in a semiconductor manufacturing equipment etc. by means of PSA process. In the process for separating a valuable gas in the... | 06/22/2004 |
| 6717666 | Method and apparatus for measuring nitrogen in a gas The present invention provides a method and an apparatus for analyzing nitrogen in a gas, in which the concentration of nitrogen can be continuously measured with good sensitivity without wasting a sample gas. At least one wavelength for measuring a concentra... | 04/06/2004 |
| 6653144 | Method and an apparatus for analyzing trace impurities in gases The present invention relates to a method and an apparatus for analyzing trace impurities in gases, which enable to analyze a very small quantity of impurities by only a simple operation, without making the column arrangement or the structure of flow comp... | 11/25/2003 |
| 6636316 | Spectroscopic method for analyzing a gas by using laser beam The present invention provides a spectroscopic method for analysing objects in a gas comprising a main ingredient and the objects, both of which the absorption spectra exist in the same wavelength range, with high precision and sensitivity by using a comp... | 10/21/2003 |
| 6609624 | Cap body of beverage container A cap body of beverage container wherein a lid plate of lid body forming a connection mouth at a drinking straw member is mounted with an air hole between a hinge axle for rotatively supporting a cap and the connection mouth, and a straw unit for being co... | 08/26/2003 |
| 6605134 | Method and apparatus for collecting rare gas There is provided a method and an apparatus for collecting a rare gas, which are capable of effectively collecting the rare gas contained in an exhaust gas exhausted from a rare gas using apparatus such as a plasma apparatus or the like, and moreover capa... | 08/12/2003 |
| 6595402 | Groove shape for single butt welding and inspection method of weld zone thereof A groove shape and an inspection method capable of securely recognizing existence of a weld flaw of a single butt weld zone by a nondestructive inspection, such as a radiograph test or an ultrasonic test, are provided. A groove shape where a concave porti... | 07/22/2003 |
| 6589493 | Gas purification-treating agents and gas purifying apparatuses Disclosed are a gas purification-treating agent and a gas purifying apparatus, which treat carbon monoxide and/or hydrogen contained in a gas in the presence of oxygen. The gas purification-treating agent consists of an adsorbent having carbon dioxide and... | 07/08/2003 |
| 6565629 | Vapor-liquid contactor, cryogenic air separation unit and method of gas separation In an vapor-liquid contactor 4a for flowing down a liquid along the surface of a packing and contacting said liquid with the vapor while ascending the vapor, the improvement being characterized in that said packing is a non-promoting-fluid-dispersion type... | 05/20/2003 |
| 6560990 | Vapor-liquid contactor, cryogenic air separation unit and method of gas separation In an vapor-liquid contactor 4a for flowing down a liquid along the surface of a packing and contacting said liquid with the vapor while ascending the vapor, the improvement being characterized in that said packing is a non-promoting-fluid-dispersion type... | 05/13/2003 |
| 6550308 | Gas analyzing apparatus There is provided a gas analyzing apparatus capable of minimizing gas remaining by integrating gas switching apparatuses into one and capable of analyzing impurities of ppb level to sub-ppb level contained in various kinds of high-purity gases efficiently... | 04/22/2003 |
| 6536089 | Method for producing an insulated vessel The present invention relates to an insulated vessel which may be produced at low cost, has superior insulating capabilities and excellent volumetric efficiency, and which may be suitably employed in a thermos, cooler, icebox, insulated cup, thermal insul... | 03/25/2003 |
| 6523567 | Apparatus and process for supplying gas There is provided a gas supplying apparatus capable of rapidly switching the gas to be supplied to an instrument and preventing reactive gases from mixing each other. The gas supplying apparatus comprises: a 4-way block valve which is a main switching val... | 02/25/2003 |
| 6521017 | Method for melting metals An apparatus for melting a metal provided with a metal melting furnace (10) for melting a metallic raw material with a flame of an oxygen fuel burner (11) to which oxygen is supplied as a combustion assisting gas; and an oxygen supply source for supplying... | 02/18/2003 |
| 6519039 | Gas spectrochemical analyzer, and spectrochemical analyzing method A gas spectroscopic analysis device for analyzing a trace impurity in a sample gas by obtaining the second derivative spectrum of the light absorption intensity by passing frequency modulated diode laser light through a low-pressure sample gas is provided... | 02/11/2003 |
| 6491758 | CVD apparatus equipped with moisture monitoring A CVD apparatus is able to efficiently perform purging treatment after maintenance by using for the purge gas a mixed gas of a high thermal conductivity and an inert gas. Purging treatment before semiconductor film formation is performed by repeating the ... | 12/10/2002 |
| 6483589 | Laser spectroscopy system In order to provide a laser spectroscopy system of simple construction and free of the effect of the fringe noise and to provide a laser spectroscopy system in which a reference cell is efficiently installed with minimum cost and space, there is disclosed... | 11/19/2002 |
| 6478040 | Gas supplying apparatus and gas substitution method Gas supplying apparatus and gas substitution method where machinery and parts constituting the gas system are not damaged, and where gas substitution in the gas system is carried out in a short time with good efficiency. The gas substitution, method for s... | 11/12/2002 |
| 6475461 | Porous carbonaceous material, manufacturing method therefor and use thereof A halogen treatment is conducted comprising: a halogenation step wherein a halogenation heat treatment for preparing a halogenated carbonized charcoal is conducted in which the carbonized charcoal is brought into contact with halogen; and a dehalogenation... | 11/05/2002 |
| 6474136 | Method and apparatus for analyzing impurities in gases There are provided a method and an apparatus capable of accurately analyzing impurity component having high adsorptivity or reactivity in a short time. Prior to starting measurement, predetermined amount of sample gas is introduced into analyzing system i... | 11/05/2002 |
| 6471749 | Gas purification method The present invention relates to a gas purification method for adsorbing and removing impurities by PSA method combined with heating, capable of removing water vapor and carbon dioxide in an economical and effective way. The present invention includes an ... | 10/29/2002 |
| 6461583 | Method for enrichment of heavy component of oxygen isotopes A method and apparatus for enrichment of heavy oxygen isotopes is provided wherein an oxygen starting material which contains heavy oxygen isotopes is enriched in at least one of oxygen molecule 16 O17 O, 16 O18... | 10/08/2002 |
| 6450392 | Groove shape for single butt welding and inspection method of weld zone thereof A groove shape and an inspection method capable of securely recognizing existence of a weld flaw of a single butt weld zone by a nondestructive inspection, such as a radiograph test or an ultrasonic test, are provided. A groove shape where a concave porti... | 09/17/2002 |
| 6434496 | Method and apparatus for measuring light absorption spectra The present invention provides a method and an apparatus for measuring a light absorption spectra which can remove a noise included in a measurement signal, and achieve a high sensitivity of a laser spectral in a good S/N ratio. According to the present i... | 08/13/2002 |
| 6434178 | Semiconductor laser A semiconductor laser which can emit at high output, for which the threshold current and efficiency have a low temperature dependence. In GaInAs/GaInAsP semiconductor lasers, the lower the holding temperature, the higher the slope efficiency. As the opera... | 08/13/2002 |
| 6427880 | Plug structure for drinking container A liquid inlet located in the lower position of a liquid passage is sealed with the valve guide of a valve body. The lever pushes the valve guide of the valve body to open up the liquid inlet. A pair of fixing arms is provided on the edge of the lever. An... | 08/06/2002 |
| 6418781 | System for analyzing trace amounts of impurities in gases An analyzing apparatus for assaying various kinds of trace impurity contents in various kinds of high-purity gases, having an atmospheric pressure ionization mass spectrometer useful for determination of trace impurity contents in such high-purity gases o... | 07/16/2002 |
| 6401964 | Portable insulating receptacles The portable thermos receptacle has a receptacle main body containing an inner shell, an outer shell and a heat-insulating section defined between the inner shell and the outer shell, and a cover removably applied to an opening of the receptacle main body... | 06/11/2002 |
| 6397660 | Gas analyzing apparatus There is provided a gas analyzing apparatus capable of minimizing gas remaining by integrating gas switching apparatuses into one and capable of analyzing impurities of ppb level to sub-ppb level contained in various kinds of high-purity gases efficiently... | 06/04/2002 |
