| THE JAPAN STEEL WORKS, LTD. Patent applications |
| Patent application number | Title | Published |
|---|
| 20120081989 | APPARATUS AND METHOD FOR PLASTIC EXTRUSION - An object of the invention is to improve capacity of process and not require a vent portion by an upper polygonal groove and a transition portion provided to a transport cylinder. | 04-05-2012 |
| 20120009297 | ELECTROMOTIVE INJECTION MOLDING MACHINE AND POWER SUPPLYING METHOD OF ELECTROMOTIVE INJECTION MOLDING MACHINE - To provide a power supplying method that can reduce the maximum power of an electromotive injection molding machine including a power supplying apparatus having a predetermined power storage circuit. | 01-12-2012 |
| 20110167921 | METHOD OF DETERMINING FATIGUE OF PRESSURE-RESISTANT COMPONENT FOR HIGH-PRESSURE HYDROGEN - A method of determining fatigue of a pressure-resistant component for high-pressure hydrogen made of a ferritic steel and provided in a high-pressure hydrogen gas environment is provided wherein when the material of the ferritic steel in the air has an ultimate tensile strength Su in the range of 958-1,144 MPa and the hydrogen gas environment has a pressure in a range to 45 MPa, then a fatigue strength in a gaseous hydrogen S | 07-14-2011 |
| 20110067787 | HIGH-STRENGTH LOW-ALLOY STEEL EXCELLENT IN HIGH-PRESSURE HYDROGEN ENVIRONMENT EMBRITTLEMENT RESISTANCE CHARACTERISTICS AND METHOD FOR PRODUCING THE SAME - An object of the present invention is to provide at a low cost a low-alloy steel having a high strength and excellent high-pressure hydrogen environment embrittlement resistance characteristics under a high-pressure hydrogen environment. The invention is a high-strength low-alloy steel having high-pressure hydrogen environment embrittlement resistance characteristics, which has a composition comprising C: 0.10 to 0.20% by mass, Si: 0.10 to 0.40% by mass, Mn: 0.50 to 1.20% by mass, Ni: 0.75 to 1.75% by mass, Cr: 0.20 to 0.80% by mass, Cu: 0.10 to 0.50% by mass, Mo: 0.10 to 1.00% by mass, V: 0.01 to 0.10% by mass, B: 0.0005 to 0.005% by mass and N: 0.01% by mass or less, and further comprising one or two of Nb: 0.01 to 0.10% by mass and Ti: 0.005 to 0.050% by mass, with the balance consisting of Fe and unavoidable impurities. | 03-24-2011 |
| 20100320633 | METHOD OF OPERATING INJECTION MOLDING MACHINE AND INJECTION MOLDING MACHINE - In an injection molding machine, dies are connected to a die temperature regulating machine by means of thermal medium supplying pipes and thermal medium returning pipes. A heat exchanger is interposed between the thermal medium returning pipes. The air which has been heated by the heat exchanger is supplied to a hopper through a hot air supplying pipe so as to preheat and dry injection material in the hopper. | 12-23-2010 |
| 20100310411 | Ni-BASED SUPERALLOY WITH EXCELLENT UNSUSCEPTIBILITY TO SEGREGATION - A subject for the invention is to diminish the occurrence of streak-type segregation in producing a material comprising a Ni-based superalloy. | 12-09-2010 |
| 20100296360 | MELTING KNEADING DEVOLATILIZING EXTRUDER - There is provided a melting kneading devolatilizing extruder in which the surface renewability of a molten raw material is improved. | 11-25-2010 |
| 20100269633 | SLAG FOR ELECTROSLAG REMELTING FOR COPPER ALLOY AND METHOD FOR PRODUCING COPPER ALLOY MATERIAL - An object of the invention is to make it possible to produce a copper alloy in which the S content is reduced with no contamination with Al, which has a good casting surface and good internal properties and in which eutectic compounds are refined. The invention relates to a slag for electroslag remelting for copper alloy, including CaF | 10-28-2010 |
| 20100260881 | METHOD OF TREATING POLYMER COMPOUND AND TREATMENT SYSTEM FOR THE SAME - A method of treating a polymer compound has the steps of: mixing and agitating the polymer compound and a chemical agent in an extruder while controlling the inside of the extruder to be kept at a high temperature and a high pressure to have a reaction mixture containing a polymer treated product; supplying the reaction mixture continuously into a high-pressure container disposed following the extruder and retaining the reaction mixture at the high temperature and high pressure for a predetermined time; then supplying the reaction mixture continuously to a chemical agent separator to separate the polymer treated product; and supplying the separated polymer treated product continuously to a molding means to form it into a molded material. | 10-14-2010 |
| 20100212785 | HIGH-STRENGTH LOW-ALLOY STEEL EXCELLENT IN HIGH-PRESSURE HYDROGEN ENVIRONMENT EMBRITTLEMENT RESISTANCE CHARACTERISTICS AND METHOD FOR PRODUCING THE SAME - An object of the present invention is to provide at a low cost a low-alloy steel having a high strength and excellent high-pressure hydrogen environment embrittlement resistance characteristics under a high-pressure hydrogen environment. The invention is a high-strength low-alloy steel excellent in high-pressure hydrogen environment embrittlement resistance characteristics, which is characterized in that the steel has a composition comprising C: 0.10 to 0.20%, Si: 0.10 to 0.40%, Mn: 0.50 to 1.20%, Cr: 0.20 to 0.80%, Cu: 0.10 to 0.50%, Mo: 0.10 to 1.00%, V: 0.01 to 0.10%, B: 0.0005 to 0.005% and N: 0.01% or less, by mass, with the balance consisting of Fe and unavoidable impurities. | 08-26-2010 |
| 20100108543 | COMPOSITION COMPRISING HYDROGEN STORAGE ALLOY AND RESIN - There is provided a resin composition including a resin and a hydrogen storage alloy powder and ensuring that even when the amount of the hydrogen storage alloy powder filled per unit volume is high, uniform mixing with the resin is achieved and the stress applied to the wall of a hydrogen storage vessel is sufficiently suppressed without impairing the high hydrogen storage capacity. | 05-06-2010 |
| 20100093182 | LASER CRYSTALLIZATION METHOD FOR AMORPHOUS SEMICONDUCTOR THIN FILM - A laser crystallization method in which an amorphous silicon thin film | 04-15-2010 |
| 20100083839 | HYDROGEN PERMEABLE MODULE AND USAGE THEREOF - A hydrogen permeable module includes a hydrogen permeable membrane that permeates hydrogen, an outer peripheral part of the hydrogen permeable membrane being restricted, an inside of the outer peripheral part of the hydrogen permeable membrane being not restricted. The hydrogen permeable module permeates the hydrogen by constantly keeping a pressure of a primary side to a pressure that is equal to or more than a pressure of a secondary side. The inside of the outer peripheral part of the hydrogen permeable membrane is not restricted so as to be capable of expanding to the secondary side. | 04-08-2010 |
| 20100072177 | PRESSURE VESSEL FABRICATING METHOD - Rib plates are provided in an interior of a box-shaped pressure vessel, and the rib plates are joined to inner surfaces of walls of the pressure vessel in such a state that the rib plates are kept erected by welding being applied to the walls of the pressure vessel from the outside thereof. | 03-25-2010 |
| 20100050734 | HYDROGEN REMAINING SENSOR - In the hydrogen remaining sensor of the present invention, the hydrogen remaining sensor is arranged in a space in which the hydrogen is absorbed/released by the main hydrogen storage alloy, and is equipped with the vessel-like sensor main body in which the sensor hydrogen storage alloy is filled and through which the hydrogen is moved. Also, the easy-to-deform portion in which the strain is caused easily due to the hydrogen absorption/release of the sensor hydrogen storage alloy is provided to a part of the sensor main body, and the strain gauge for measuring the strain of the easy-to-deform portion is provided. As a result, according to the hydrogen remaining sensor of the present invention can contribute to sense precisely a remaining amount of hydrogen in the main hydrogen storage alloy. | 03-04-2010 |
| 20100023306 | DEVOLATILIZATION PERFORMANCE PREDICTION APPARATUS AND DEVOLATILIZATION PERFORMANCE PREDICTION METHOD - A devolatilization performance prediction apparatus for a solution devolatilization process using a twin-screw extruder including a flow state computation means | 01-28-2010 |
| 20100012219 | HYDROGEN FILLING APPARATUS - The invention comprises a hydrogen source, a detachable connecting port to which a hydrogen storage container is connected in order to store hydrogen supplied from the hydrogen source, a container cooling unit (an air blower) for cooling a hydrogen storage container connected to the connecting port, a container connection recognition unit (a limit switch, a controller) for recognizing connection of a hydrogen storage container to the connecting port, and a fill-up detection unit (a pressure transmitter, a hydrogen remaining sensor, a controller) for detecting that the hydrogen storage container connected to the connecting port is filled up with hydrogen. Consequently, it contributes to simple and safe hydrogen filling in the general public. | 01-21-2010 |
| 20090269275 | PRODUCING METHOD OF HYDROGEN STORAGE ALLOY - The invention intends to provide a hydrogen storage alloy that can absorb and release hydrogen effectively at room temperature and shows excellent hydrogen storage amount and effective hydrogen transfer amount and furthermore shows excellent endurance. | 10-29-2009 |
| 20090263533 | METHOD OF MOLDING A HOLLOW MOLDED ARTICLE, HOLLOW MOLDED ARTICLE, AND APPARATUS FOR MANUFACTURING THE SAME - First and second semi-finished molded articles and a third semi-finished molded article are molded simultaneously so as to have joint end faces by using a slide die, a fixed die, and first and second slide cores fitted to the fixed die. The slide die with the third semi-finished molded article remaining thereon is moved toward the first and second slide cores, and their respective joint end faces are registered. Heating surfaces are inserted between the joint end faces. After melting the joint end faces, the heating surfaces are retracted, and the molding device is closed to weld the joint end faces. | 10-22-2009 |
| 20090260760 | METHOD OF MOLDING A HOLLOW MOLDED ARTICLE, HOLLOW MOLDED ARTICLE, AND APPARATUS FOR MANUFACTURING THE SAME - First and second semi-finished molded articles and a third semi-finished molded article are molded simultaneously so as to have joint end faces by using a slide die, a fixed die, and first and second slide cores fitted to the fixed die. The slide die with the third semi-finished molded article remaining thereon is moved toward the first and second slide cores, and their respective joint end faces are registered. Heating surfaces are inserted between the joint end faces. After melting the joint end faces, the heating surfaces are retracted, and the molding device is closed to weld the joint end faces. | 10-22-2009 |
| 20090246307 | POWER SUPPLY DEVICE FOR ELECTRICALLY DRIVEN INJECTION MOLDING MACHINE AND ELECTRICALLY DRIVEN INJECTION MOLDING MACHINE - A power supply device for supplying an electric power to a servo amplifier is configured by an AC/DC converter and a power accumulating device. Among a molding cycle, during a process where an amount of consumed power is small, a DC voltage is supplied to the servo amplifier from the AC/DC converter and a power is accumulated in the power accumulating device. In a process such as an injection process where a large power is required, a high DC voltage is supplied to the servo amplifier from the power accumulating device in place of the AC/DC converter. | 10-01-2009 |
| 20090218716 | METHOD AND APPARATUS FOR FORMING HOLLOW MOLDINGS HAVING THIN FILM ON INNER SURFACE - The method employs a stationary mold having depositing recesses equipped in its inside with a deposition element such as a target electrode, and movable molds made slidable. A primary molding is performed to form a body portion and a cover member to have joint portions around their opening. The body portion left in the vertically sliding mold is deposited after it was densely covered with the depositing recesses. Next, the deposited body portion and the cover member, as left in the molds, are registered and mold clamped, and the molten metal is injected to integrated the joint portions. | 09-03-2009 |
| 20090202669 | DEVOLATILIZATION SIMULATION APPARATUS FOR SCREW EXTRUDERS AND DEVOLATILIZATION SIMULATION PROGRAM FOR SCREW EXTRUDERS - A devolatilization simulation apparatus for screw extruders and a devolatilization simulation program for screw extruders can actually simulate the devolatilization process in a screw extruder. An extruder simulation system for simulating the conditions of devolatilization of an extruder by computationally determining the resin temperature, the pressure, the residence time, the filling ratio, the torque, the power, the solid-phase occupancy and the concentration of the volatile components in terms of distribution in the axial direction of the extruder from the configuration and the operating conditions of the extruder and the physical properties of the resin in the extruder comprising a means for arithmetically simulating the process where the concentration of the volatile components contained in the resin gradually falls as they are devolatilized by vent cylinders. | 08-13-2009 |
| 20090194905 | MOLDING METHOD AND MOLDING APPARATUS OF MOLD PRODUCT HAVING THIN FILM AT INNER SURFACE - A molding method involves a first and a second sliding die, a first and a second fixed die, and a sliding film forming chamber. The first, the second sliding dies are moved in directions reverse to each other to take a primary molding position, a film forming position and a secondary molding position. The sliding film forming chamber includes a first, a second masking plate and are arranged to be remote from the first, the second fixed dies. Further, the sliding film forming chamber is slid in an up and down direction. The first, the second sliding dies are respectively formed with recess portions and cores, the first, the second fixed dies are respectively formed with cores and recess portions. | 08-06-2009 |
| 20090189551 | METHOD AND APPARATUS FOR STOPPING SERVO MOTOR - The servo motor is controlled by a control signal from a control circuit. A common branch line is separated from a positive common line in accordance with information that a safety door is opened. Thus, a first gate drive circuit group is made inoperative. Then, a second gate drive circuit group is operated to thereby short-circuit the U−, V− and W−phases of the motor to place in a regenerative braking state. | 07-30-2009 |
| 20090169665 | CUTTER DEVICE - A cutter device includes a fixing holder, a spherical cylinder, and a cutter holder. The fixing holder has a through hole, and a spherical outer circumferential surface in which a key groove is formed. The spherical cylinder includes a through hole that has a spherical inner circumferential surface in which a key groove having a spherical bottom surface is formed, and a spherical outer circumferential surface having a key groove formed at a position shifted around a rotational axis with respect to the key groove. The cutter holder includes a through hole that has a spherical inner circumferential surface in which a through hole having a spherical bottom surface is formed, and a cutter blade. These components are rotationally slidably connected by keys. | 07-02-2009 |
| 20090074634 | METHOD FOR PRODUCING NANOCARBON AND CATALYTIC REACTION DEVICE FOR PRODUCING NANOCARBON - A cylindrical screw feeder main body, catalyst feeding portions for introducing a catalyst into the screw feeder main body, low hydrocarbon feeding portions for introducing a low hydrocarbon into the screw feeder main body as a raw material, a screw for conveying the catalyst and nanocarbon produced by pyrolysis of the low hydrocarbon in the feeder main body, a solid matter discharging portion for discharging the catalyst and the nanocarbon conveyed by the screw out of the screw feeder main body and a gas discharging portion for discharging the unreacted low hydrocarbon and hydrogen produced by the pyrolysis of the low hydrocarbon out of the screw feeder main body are provided. Nanocarbon grown with the catalyst as top with time is continuously discharged out of the screw feeder main body while unused catalyst is being fed thereto at the same amount as that of nanocarbon, allowing efficient continuous reaction. | 03-19-2009 |
