Patents Assigned to China Steel Corporation
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Patent number: 10047418Abstract: A method for manufacturing a high-strength and high-ductility steel includes steps in which an alloy steel is provided. The method continues with step in which the alloy steel is hot rolled, so that the microstructure of the alloy steel includes austenite, bainite and martensite. The method continues with step in which the hot-rolled alloy steel is annealed, so as to decompose bainite and martensite structures of the alloy steel into ferrite and austenite structures. The method continues with step in which the annealed alloy steel is cold rolled. The method continues with step in which the cold-rolled alloy steel is annealed, so as to manufacture a high-strength and high-ductility steel in a phase with 50% to 70% of residual austenite.Type: GrantFiled: July 10, 2015Date of Patent: August 14, 2018Assignee: CHINA STEEL CORPORATIONInventors: Chih-Pu Chang, Delphic Chen, Chih-Hung Ou, Jui-Fan Tu, Kuo-Cheng Yang, Lung-Jen Chiang, Ming-Chin Tsai
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Patent number: 9486984Abstract: Provided is a steel sheet including an iron-based material, a first coating layer disposed on the iron-based material, and a second coating layer disposed on the first coating layer, wherein the first coating layer includes a zinc alloy and the second coating layer consists essentially of chromium and carbon.Type: GrantFiled: May 5, 2015Date of Patent: November 8, 2016Assignees: National Taiwan University, CHINA STEEL CORPORATIONInventors: Chao-Sung Lin, Tsung-Jung Chen, Chun-Hung Wu
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Patent number: 9174256Abstract: The present invention relates to a hot rolling high-pressure fluid descaling method and descaling apparatus. The apparatus comprises at least one descaling unit, a axial direction of a main pipe header of the descaling unit and a rolling stock transportation direction intersect. Each nozzle ejects fluid onto a surface of the rolling stock to form an impact region. The adjacent impact regions are presented in an alternate pattern on the surface of the rolling stock. The center lines of the impact regions along a longitudinal direction are spaced apart by a specific distance, and the center lines are essentially perpendicular to the rolling stock transportation direction.Type: GrantFiled: February 21, 2012Date of Patent: November 3, 2015Assignee: CHINA STEEL CORPORATIONInventors: Kun-Cheng Tung, Chung-Ping Ju, Pi-Kun Cheng, Chao-Chi Huang, Chun-Chao Shih
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Patent number: 9096810Abstract: A method for producing a bio-coal includes the following steps: (a) lowering the moisture content of a fiber residue obtained after oil extraction of oil palm fruit to less than 25%; (b) after step (a), cutting the fiber residue; (c) after step (b), pelletizing the fiber residue into short-fiber pellets; (d) drying the short-fiber pellets to reduce the moisture content of the short-fiber pellets to below 10%; and (e) after step (d), carbonizing the short-fiber pellets at a temperature below 300° C.Type: GrantFiled: January 23, 2013Date of Patent: August 4, 2015Assignee: China Steel CorporationInventors: Ming-Tsai Hung, Chao-Wen Chen, Der-Her Wang, Hsiao-Kwang Lee, Jung-Tung Yang, Yung-Ping Chu, Huang-Chih Cheng
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Patent number: 9048388Abstract: A multi-layer thermoelectric module and a fabricating method thereof are provided. The module includes two thermoelectric element sets and a metal electrode set, in which the thermoelectric element sets are corresponding to different operating temperature ranges. Each thermoelectric element set includes a thermoelectric unit, an interfacial adhesion layer, a diffusion barrier layer and a high melting-point metal layer. In the method, the thermoelectric unit, the interfacial adhesion layer, and the diffusion barrier layer are sequentially formed on the thermoelectric unit. Then, two high melting-point metal layers are formed respectively on the electrode layers of the metal electrode set.Type: GrantFiled: July 8, 2013Date of Patent: June 2, 2015Assignee: CHINA STEEL CORPORATIONInventors: Jing-Yi Huang, Huey-Lin Hsieh, Tung-Han Chuang, Jenn-Dong Hwang, Chao-Chi Jain
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Patent number: 8851387Abstract: An anti-counterfeiting bottle includes a metal cap, a bottle body and a RFID (Radio-Frequency Identification) tag. The RFID tag includes a grounded surface, a monopole antenna and a RFID chip. The grounded surface is attached to the bottle body. The monopole antenna is attached to the bottle and is electrically connected to the grounded surface. The RFID chip is attached to the bottle and is electrically connected to the monopole antenna and the grounded surface respectively, wherein the RFID chip, the monopole antenna and the grounded surface form a loop structure. When the RFID tag is torn up, the loop structure is destroyed as well, such that the RFID tag cannot be read anymore, thus achieving the anti-counterfeiting function.Type: GrantFiled: May 25, 2011Date of Patent: October 7, 2014Assignee: China Steel CorporationInventors: Shih-Kang Kuo, Sung-Lin Chen, Long-Gee Liao, Jhu-Yong Hsu
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Patent number: 8568652Abstract: A resident measurement system for a charge level of a blast furnace includes a chamber, a servo system, a distance measurement unit, and a cooling-cleaning unit. The chamber is combined with a lateral furnace wall of the blast-furnace, covers an opening of the furnace wall, and has a pivoting hole. A pivot of the distance measurement unit is pivotally disposed at the pivoting hole, and the distance measurement unit is driven by the servo system to perform a motion with the pivot as a movement center, so as to measure the charge level. The cooling-cleaning unit is used to supply a high-pressure gas, which flows through the distance measurement unit to perform cooling and cleansing operations.Type: GrantFiled: December 27, 2010Date of Patent: October 29, 2013Assignee: China Steel CorporationInventors: Chen-Yuan Lu, Shih-Kang Kuo, Lien-Kuei Chiang, Wen-Chieh Li, Shan-Wen Du
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Patent number: 8561912Abstract: The present invention relates to an RFID tag having capacitive load, including: an antenna unit, a capacitive load and an RFID device. The antenna unit includes two metal sheets and a conductive substrate, and the metal sheets are disposed at a corresponding position above the conductive substrate and electrically connected to the conductive substrate. The capacitive load is electrically connected to the metal sheets. The RFID device feeds the antenna unit by electrically connecting to the metal sheets or coupling. This dramatically decreases the operating frequency, so the imaginary part of impedance is higher with the same size of the antenna unit, thereby reducing the size of the RFID tag. As a result, the weight is reduced, the manufacture process is simplified and the subsequent structure can be easily adjusted.Type: GrantFiled: April 17, 2013Date of Patent: October 22, 2013Assignee: China Steel CorporationInventors: Sung-Lin Chen, Yi-An Wu
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Patent number: 8556185Abstract: The present invention relates to an RFID tag having capacitive load, including: an antenna unit, a capacitive load and an RFID device. The antenna unit includes two metal sheets and a conductive substrate, and the metal sheets are disposed at a corresponding position above the conductive substrate and electrically connected to the conductive substrate. The capacitive load is electrically connected to the metal sheets. The RFID device feeds the antenna unit by electrically connecting to the metal sheets or coupling. This dramatically decreases the operating frequency, so the imaginary part of impedance is higher with the same size of the antenna unit, thereby reducing the size of the RFID tag. As a result, the weight is reduced, the manufacture process is simplified and the subsequent structure can be easily adjusted.Type: GrantFiled: April 17, 2013Date of Patent: October 15, 2013Assignee: China Steel CorporationInventors: Sung-Lin Chen, Yi-An Wu
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Publication number: 20130228627Abstract: The present invention relates to an RFID tag having capacitive load, including: an antenna unit, a capacitive load and an RFID device. The antenna unit includes two metal sheets and a conductive substrate, and the metal sheets are disposed at a corresponding position above the conductive substrate and electrically connected to the conductive substrate. The capacitive load is electrically connected to the metal sheets. The RFID device feeds the antenna unit by electrically connecting to the metal sheets or coupling. This dramatically decreases the operating frequency, so the imaginary part of impedance is higher with the same size of the antenna unit, thereby reducing the size of the RFID tag. As a result, the weight is reduced, the manufacture process is simplified and the subsequent structure can be easily adjusted.Type: ApplicationFiled: April 17, 2013Publication date: September 5, 2013Applicant: CHINA STEEL CORPORATIONInventors: SUNG-LIN CHEN, YI-AN WU
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Publication number: 20130221106Abstract: The present invention relates to an RFID tag having capacitive load, including: an antenna unit, a capacitive load and an RFID device. The antenna unit includes two metal sheets and a conductive substrate, and the metal sheets are disposed at a corresponding position above the conductive substrate and electrically connected to the conductive substrate. The capacitive load is electrically connected to the metal sheets. The RFID device feeds the antenna unit by electrically connecting to the metal sheets or coupling. This dramatically decreases the operating frequency, so the imaginary part of impedance is higher with the same size of the antenna unit, thereby reducing the size of the RFID tag. As a result, the weight is reduced, the manufacture process is simplified and the subsequent structure can be easily adjusted.Type: ApplicationFiled: April 17, 2013Publication date: August 29, 2013Applicant: China Steel CorporationInventor: China Steel Corporation
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Patent number: 8510978Abstract: The present invention relates to an RFID tag holder, which comprises an RFID tag carrier used to carry an RFID tag, and a base having a circular surface, a holding portion and at least one magnetic component disposed therein. The shape of the circular surface matches that of the disposing hole, the magnetic component is used to make the disposing hole magnetically attachable to combine the base with the disposing hole, and two clip arms of a holding unit grip the holding portion and hold the RFID tag carrier after passing through two through holes of a metal substrate. The RFID tag holder has the following advantages: fast installation, low cost and reusability; is suitable for disposing holes with any depth and size; reduced interference and improved reading effect; no extra processing cost; dust-proof, water-proof and oil-resistant; and better composability, extensibility and flexibility.Type: GrantFiled: November 2, 2011Date of Patent: August 20, 2013Assignee: China Steel CorporationInventors: Sung-Lin Chen, Chang-Tsun Lin, Lien-Kuei Chiang
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Publication number: 20130199086Abstract: A method for producing a bio-coal includes the following steps: (a) lowering the moisture content of a fiber residue obtained after oil extraction of oil palm fruit to less than 25%; (b) after step (a), cutting the fiber residue; (c) after step (b), pelletizing the fiber residue into short-fiber pellets; (d) drying the short-fiber pellets to reduce the moisture content of the short-fiber pellets to below 10%; and (e) after step (d), carbonizing the short-fiber pellets at a temperature below 300° C.Type: ApplicationFiled: January 23, 2013Publication date: August 8, 2013Applicant: CHINA STEEL CORPORATIONInventor: CHINA STEEL CORPORATION
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Patent number: 8440111Abstract: A lead-free conductive paste composition includes silumin powder, lead-free glass frits, an organic binder, stearic acid zinc, and aluminum powder.Type: GrantFiled: May 17, 2011Date of Patent: May 14, 2013Assignee: China Steel CorporationInventors: Rong-Zhi Chen, Hung-Shuo Chung, Chin-Lin Huang, Jye-Long Lee, Shu-Hua Chen, Jui-Tung Chang
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Patent number: 8436581Abstract: A system for testing electromagnetic characteristics of an electromagnetic steel sheet includes: a driving unit operable based on a non-sinusoidal wave control signal from a control unit and a floating voltage to output a control output; a power output unit operable based on the control output from the driving unit to output a voltage output at an output side coupled across a first winding wound around the electromagnetic steel sheet such that an exciting current flowing through the first winding is generated in response to the voltage output, thereby resulting in an induced voltage across a second winding wound around the electromagnetic steel sheet; and a measuring unit outputting to the control unit an output corresponding to the exciting current and the induced voltage measured thereby such that the control unit obtains the electromagnetic characteristics of the electromagnetic steel sheet based on the output.Type: GrantFiled: April 19, 2010Date of Patent: May 7, 2013Assignee: China Steel CorporationInventors: Kai-Chen Kuo, Jia-Yush Yen, Ping-Kun Lee, Yi-Chih Lai, Cheng-Ju Wu
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Patent number: 8410669Abstract: A piezoceramic transducer (PZT transducer) and a method for manufacturing the same are provided. The PZT transducer includes a piezoceramic substrate and an electrode unit. The piezoceramic substrate has a first surface and a second surface opposite the first surface, and has a mechanical quality factor (Qm) greater than 1400. The electrode unit has a first electrode and a second electrode. The first electrode is disposed on the first surface and has a first diameter. The second electrode covers the second surface and extends to cover a part of the surface at a periphery of the first surface, and the part of the second electrode covering the second surface has a second diameter. The ratio of the first diameter to the second diameter is 0.498 to 0.502. The PZT transducer has a large mist amount and a long service life.Type: GrantFiled: December 16, 2010Date of Patent: April 2, 2013Assignee: China Steel CorporationInventors: Cheng-Sheng Yu, Wu-Song Chung
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Patent number: 8366994Abstract: A method for manufacturing a cobalt (Co) alloy-based ceramic composite sputtering target is provided. A cobalt ingot and a chromium (Cr) ingot are melted in vacuum and then nebulized to form a cobalt-chromium (CoCr) alloy powder. Additionally, a ceramic powder and a platinum powder are wetly mixed to form a platinum-ceramic (Pt-ceramic) slurry, in which the ceramic powder is applied onto the platinum powder's surface uniformly. Next, the CoCr alloy powder and the Pt-ceramic slurry are wetly mixed to form a CoCrPt-ceramic slurry. Thereafter, the CoCrPt-ceramic slurry is dried, molded and compressed to form the cobalt alloy-based ceramic composite sputtering target. The resulted cobalt alloy-based ceramic composite sputtering target, which has a fine and dense structure, uniform composition and lower magnetic permeability, is beneficial to a magnetron sputter deposition process, as well as a film sputtering process used in the magnetic recording industry.Type: GrantFiled: November 4, 2010Date of Patent: February 5, 2013Assignee: China Steel CorporationInventors: Rong-Zhi Chen, Chun-Hao Chiu, Jui-Tung Chang, Deng-Far Hsu, Chih-Huang Lai
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Publication number: 20120274010Abstract: The present invention relates to a method and an auxiliary device for precision positioning of welded type nozzles. The auxiliary device for precision positioning of welded type nozzles includes a plurality of alignment tips and an alignment bar. Each alignment tip is connected to a welding adapter and extends a distance. The alignment bar is combined with the alignment tips so that first positioning portions of the alignment tips are aligned with a plurality of second positioning portions of the alignment bar, and after the alignment bar is combined with the alignment tips, a correction distance between an end surface of the alignment bar and a center line of a main pipe header in a longitudinal direction is larger than a length of an assembled nozzle after a nozzle tip is combined with the corresponding welding adapter. In this way, the geometric positions of the nozzles can be accurately corrected.Type: ApplicationFiled: April 19, 2012Publication date: November 1, 2012Applicant: CHINA STEEL CORPORATIONInventors: KUN-CHENG TUNG, KIN-TSE LI, MING-HSIEN HUANG, MENG-FU CHEN
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Publication number: 20120268251Abstract: A wireless identification tag having circular polarization planar antenna is disclosed. The wireless identification tag includes a conductive substrate and a wireless identification device. The conductive substrate includes a first slot portion, a second slot portion, and a third slot portion. The first slot portion, the second slot portion, and the third slot portion pass through the conductive substrate. The first slot portion and the second slot portion stretch in a first direction and a second direction, respectively. The angle between the first direction and the second direction is between 45 degrees and 135 degrees. The third slot portion is connected between the first slot portion and the second slot portion. The wireless identification device is disposed in the first slot portion or the second slot portion. The wireless identification device is used to transmit or receive an electric wave.Type: ApplicationFiled: November 4, 2011Publication date: October 25, 2012Applicant: CHINA STEEL CORPORATIONInventors: Sung-Lin CHEN, Chang-Tsun LIN, Shih-Kang KUO, Wei TANN
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Publication number: 20120228388Abstract: An anti-counterfeiting bottle includes a metal cap, a bottle body and a RFID (Radio-Frequency Identification) tag. The RFID tag includes a grounded surface, a monopole antenna and a RFID chip. The grounded surface is attached to the bottle body. The monopole antenna is attached to the bottle and is electrically connected to the grounded surface. The RFID chip is attached to the bottle and is electrically connected to the monopole antenna and the grounded surface respectively, wherein the RFID chip, the monopole antenna and the grounded surface form a loop structure. When the RFID tag is torn up, the loop structure is destroyed as well, such that the RFID tag cannot be read anymore, thus achieving the anti-counterfeiting function.Type: ApplicationFiled: May 25, 2011Publication date: September 13, 2012Applicant: CHINA STEEL CORPORATIONInventors: Shih-Kang KUO, Sung-Lin CHEN, Long-Gee LIAO, Jhu-Yong HSU