| HITACHI ZOSEN CORPORATION Patent applications |
| Patent application number | Title | Published |
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| 20120086260 | BIT REPLACING DEVICE FOR EXCAVATING MACHINE - An opening for a replacement bit can be closed without a large drive force, the replacement bit can be replaced without being moved, and the workability of replacement is not impaired. A rear surface frame ( | 04-12-2012 |
| 20120040261 | HYDROGEN GENERATING APPARATUS AND HYDROGEN GENERATING METHOD - A hydrogen generating apparatus for effectively generating hydrogen from ammonia and relates to the hydrogen generating apparatus for generating hydrogen from ammonia. The apparatus comprises an ammonia oxidation part having ammonia oxidation catalysts which oxidizes ammonia, and an ammonia decomposition part having an ammonia decomposition catalyst which decomposes ammonia to generate nitrogen and hydrogen. The decomposition part is located downstream of the oxidation part in a direction of feed gas flow. The oxidation catalyst contains both a noble metal catalyst and a base metal catalyst, and a loading concentration of the noble metal catalyst in an upstream portion of the oxidation part is higher than a loading concentration of the noble metal catalyst in a downstream portion of the oxidation part, and/or the decomposition catalyst contains both a noble metal catalyst and a base metal catalyst, and a loading concentration of the noble metal catalyst in a downstream portion of the decomposition part is higher than a loading concentration of the noble metal catalyst in an upstream portion of the decomposition part. | 02-16-2012 |
| 20110306489 | AMMONIA DECOMPOSITION CATALYST - Disclosed is an ammonia decomposition catalyst which is obtained by heat-treating a complex at a temperature of 360° C. to 900° C. in a reducing atmosphere, wherein the complex containing a polymer having a molecular weight of 1,000 to 500,000 represented by the formula [I], a transition metal coordinated with the polymer, and an activated carbon or a carbon nanotube added thereto. In a case of using the carbon nanotube, an alkali metal compound or an alkaline earth metal compound is added to the heat-treated complex. R | 12-15-2011 |
| 20110286907 | AMMONIA SYNTHESIS PROCESS - The invention provides a process for efficient synthesis of ammonia. The process includes a water-splitting step in which water is decomposed to obtain a first source gas comprising hydrogen and oxygen, a first oxygen removal step in which the oxygen contained in the first source gas is at least partially separated and removed by an oxygen separating membrane or hydrogen separating membrane to obtain a second source gas having a lower oxygen concentration than the first source gas, a second oxygen removal step in which the oxygen in the second source gas is reacted with hydrogen to produce water for removal, or is adsorbed onto an adsorption medium for removal, to obtain a third source gas having a lower oxygen concentration than the second source gas, and an ammonia synthesis step in which the hydrogen in the third source gas is reacted with nitrogen to synthesize ammonia. | 11-24-2011 |
| 20110283960 | AMMONIA-ENGINE SYSTEM - An ammonia-engine system is capable of supplying an ammonia cracking catalyst with a temperature necessary to promote a reaction even during low load operation in which a temperature of an exhaust gas from an ammonia engine is lower than an operating temperature of the ammonia cracking catalyst. In an ammonia-engine system provided with an ammonia engine ( | 11-24-2011 |
| 20110024342 | SEPARATION MEMBRANE MODULE - A separation membrane module is provided with a module main body | 02-03-2011 |
| 20110003958 | Biopolymer Originating in Eucommia Ulmoides - Provided is an eucommia-derived biopolymer, which is obtained by biologically decaying an eucommia to obtain an eucommia decomposition product, and washing the eucommia decomposition product. The biopolymer is obtained by such a convenient method, and contains mainly a trans-isoprenoid and has a relatively high molecular weight. Therefore, the biopolymer is solid and elastomeric, and is useful as an industrial material. | 01-06-2011 |
| 20100281862 | MARINE DIESEL ENGINE - In a marine diesel engine equipped with a plurality of turbochargers, when the turbochargers are switched from single operation to parallel operation or from parallel operation to single operation, surging in the turbocharger to be started or stopped is prevented. The marine diesel engine includes an exhaust pipe (L | 11-11-2010 |
| 20100260655 | AMMONIA SYNTHESIS APPARATUS AND PROCESS - An ammonia synthesis apparatus includes: a first gas channel; a second gas channel disposed outside the first gas channel; a third gas channel disposed outside the second gas channel; an air supply unit that supplies air to the second or third gas channel; a water supply unit that supplies water to the first gas channel; and a heat supply unit that supplies heat to the first gas channel. A metal or a metal oxide that reduces water to produce hydrogen is placed in the first gas channel. An ammonia synthesis catalyst is placed in the second gas channel located downstream of the downstream end portion of the first gas channel. The second and third gas channels are at least partially partitioned by an oxygen permeation membrane, or a nitrogen permeation membrane, so that oxygen is supplied to the third gas channel, and nitrogen is supplied to the second gas channel. | 10-14-2010 |
| 20100233366 | APPARATUS AND METHOD OF PRODUCING VAPOR-GROWN CARBON STRUCTURE - An apparatus and a method of producing a vapor-grown carbon structure capable of obtaining a vapor-grown carbon structure with a markedly low production cost are provided. | 09-16-2010 |
| 20100218272 | Long-Chain Trans-Prenyl Diphosphate Synthase Gene - A method for increasing the amount of trans-1,4-polyisoprene contained in a plant, and a method for effectively producing trans-1,4-polyisoprene using a plant are provided. A long-chain trans-prenyl diphosphate synthase gene that comprises DNA having at least one base sequence selected from the group consisting of a base sequence from positions 88 to 1134 of the base sequence of SEQ ID NO: 1 or a complementary sequence thereof, a base sequence from positions 42 to 1088 of the base sequence of SEQ D NO: 3 or a complementary sequence thereof, and a base sequence from positions 91 to 1140 of the base sequence of SEQ ID NO: 5 or a complementary sequence thereof are disclosed; as well as a plant transformed with an expression vector containing the gene. | 08-26-2010 |
| 20100047140 | APPARATUS FOR PRODUCING LACTIC ACID - An apparatus for producing lactic acid according to the invention comprises a reactor carrying out: subjecting glycerin to a hydrothermal reaction under an alkaline condition, supplying an alkaline solution comprising glycerin; and continuously producing lactic acid, wherein glycerin is subjected to a hydrothermal reaction under an alkaline condition at a temperature in the range of 150 to 400° C. and under pressure equal to or more than the saturated vapor pressure at the temperature. The glycerin produced from plant fats, animal fats or the like or pure product synthesized chemically or a discharge containing glycerin generated at the production of diesel fuel oil from fats, in which the fats are subjected to a transesterification with alcohol in the presence of an alkali catalyst in order to obtain fatty acid ester is preferably used as a starting material. | 02-25-2010 |
| 20100041547 | METHOD FOR PRODUCTION OF CATALYST AND CATALYST PRODUCED BY THE METHOD - A method for producing a catalyst of the present invention is characterized by sequentially performing the steps of: (i) dipping an end face portion of a carrier structure having a catalytic component carried thereon in an aqueous metal salt solution at a concentration of 2.7 to 3.88 mol/L in terms of mole of the metal; (ii) drying the dipped end face portion; (iii) dipping the dried end face portion again in an aqueous metal salt solution whose metal species is the same as that in the aqueous metal salt solution at a concentration of 2.7 to 3.88 mol/L in terms of mole of the metal; and (iv) performing a calcination treatment to harden the catalytic end face. | 02-18-2010 |
| 20090271053 | Method and device for evaluating shafting alignment of ship - An evaluation map showing the allowable ranges (A) of the crank deflection and bearing loads determined according to the inclination of the crankshaft of an engine and the intermediate shaft is prepared beforehand. When the engine is installed in a ship, the inclination of the shafts within the allowable ranges can be easily known. While the ship is in service, the shafting alignment of the ship can be evaluated by merely measuring the inclination of the crankshaft and the intermediate shaft. | 10-29-2009 |
| 20090088589 | PROCESS FOR PRODUCTION OF LACTIC ACID AND EQUIPMENT FOR THE PRODUCTION - A process for producing lactic acid according to the invention is characterized in that glycerin is subjected to a hydrothermal reaction under an alkaline condition at a temperature in the range of 150 to 400° C. and under pressure equal to or more than the saturated vapor pressure at the temperature. The glycerin produced from plant fats, animal fats or the like or pure product synthesized chemically or a discharge containing glycerin generated at the production of diesel fuel oil from fats, in which the fats are subjected to a transesterification with alcohol in the presence of an alkali catalyst in order to obtain fatty acid ester is preferably used as a starting material. | 04-02-2009 |
| 20090057284 | LASER PROCESSING METHOD AND LASER PROCESSING APPARATUS - The present invention provides a method and an apparatus for efficiently processing in patterning of an electronic circuit board even when laser beams of differing intensities and wavelengths are irradiated in multiple stages. A laser processing apparatus is provided with first and second laser oscillators for emitting laser beams of which at least the wavelength or the intensities are different from each other; a stage apparatus for moving a workpiece to be processed; and optical systems for guiding the laser beams to prescribed positions of the workpiece. The optical systems can be moved by means of an adjusting device according to the relative moving direction of the laser beams and the workpiece to permit the prescribed position of the subject to be irradiated with laser beams in that order so that the workpiece can be processed by the laser beams. Thus, efficient laser processing can be performed without limiting the relative moving direction of the laser beams and the workpiece and without unnecessary movement. | 03-05-2009 |
| 20080284645 | Relative Positioning Method and Relative Positioning System Using Satellite - A positioning system wherein radio waves from a GPS satellite ( | 11-20-2008 |
