baber/WOPTO huggingface dataset:
Patent TW-I786832-B (TW)
Title: 半導體結構的製作方法
Inventor: CHENG KAI
IPC: H01L27/15
Filed: 2021-09-17
Granted: 2022-12-11
Abstract: 本申請提供了一種半導體結構的製作方法，利用對應於襯底的一個單元區的遮罩各開口孔占比大小不同，從而生長發光層時各開口內的反應氣體的流速不同，發光層的生長速度不同，生長的發光層中各元素的摻入效率不同，進而使得生長的發光層中各元素的組分占比不同，LED的發光波長不同。上述工藝簡單，能在一個襯底上製作可用於全彩LED的半導體結構，減小了全彩LED的尺寸。
Patent TW-I797751-B (TW)
Title: 半導體結構及其製作方法
Inventor: CHENG KAI
IPC: H01L29/06
Filed: 2021-09-17
Granted: 2023-04-01
Abstract: 本申請提供了一種半導體結構及其製作方法，半導體結構包括：基底，基底內具有多條並排設置的條狀溝槽；以及位於條狀溝槽的底壁、側壁以及條狀溝槽外的基底上的異質結結構，位於底壁與條狀溝槽外的基底上的異質結結構為極化區，位於側壁的異質結結構為非極化區，極化區內具有載流子；異質結結構包括分別位於每條條狀溝槽兩端的源極區域與汲極區域，以及位於源極區域與所述汲極區域之間的閘極區域，源極區域與汲極區域之間的載流子被限定在各條極化區內流動。由於條狀極化區被限域，異質結結構內的二維電子氣/電洞氣載流子在遷移過程中呈現近似一維的輸運方式，可大幅提高器件的擊穿電壓以及降低漏電問題，並可提高射頻器件的效率和線性度。
Patent TW-I786842-B (TW)
Title: 牆體側向支撐補強裝置
Inventor: PENG KUANG TSUNG
IPC: E04G23/04
Filed: 2021-09-22
Granted: 2022-12-11
Abstract: 一種牆體側向支撐補強裝置，該牆體相交豎立於一地面，該支撐補強裝置包含至少一腳座單元及至少一支撐單元。該腳座單元固定於該地面，並括一外腳座及一內腳座，該支撐單元包括一主支撐件、一樞接於該主支撐件與該內腳座之間的連接組及至少一固定於該連接組與該牆體之間的固定件，該主支撐件傾斜設置且樞接於該外腳座與該連接組之間。利用整體的配置，可達到穩固支撐牆體的目的。
Patent TW-I763606-B (TW)
Title: 氣動式運轉動力系統(二)
Inventor: Guan huan-zhang
IPC: F03G3/00
Filed: 2021-10-27
Granted: 2022-05-01
Abstract: 一種氣動式運轉動力系統，包含一軸基座單元、一樞設於該軸基座單元的轉動單元、多個安裝於該轉動單元的作動位移單元、一連接該等作動位移單元的驅動單元，及多個分別配置於該等作動位移單元的循環單元。該轉動單元包括一轉輪，及多個偏心延伸的支架。每一作動位移單元包括一線軌，及一設置於該線軌的質量體。該驅動單元包括多個氣壓缸、一連通該等氣壓缸的氣源，及一控制該等氣壓缸帶動該等質量體位移形成偏心運轉的控制器。每一循環單元具有二設置於個別支架之一端的氣體壓縮機，每一氣體壓縮機因對應之質量體作動，輸出氣體導回該氣源。
Patent TW-I786918-B (TW)
Title: Transportation system
Inventor: WU CHUNG-YEN
IPC: B65G1/04
Filed: 2021-11-02
Granted: 2022-12-11
Abstract: A transportation system includes a carrier device, a lifting mechanism, a shelf and a plurality of telescopic mechanisms. The carrier device has a top side. The lifting mechanism is movably disposed on the carrier device so as to be adapted for being stored in the carrier device or rising from the top side. The shelf is adapted for being combined with the lifting mechanism. The telescopic mechanism is disposed around the shelf and each of the telescopic mechanism has a plurality of positioning columns. When the carrier device is under the shelf and the lifting mechanism is raised above the top side from the carrier device, the lifting mechanism pushes a part of the positioning columns to shorten and lift the shelf, and the lifting mechanism is located in the range surrounded by the rest of the positioning columns to fix the relative position between the carrier device and the shelf. When the lifting mechanism is lowered from the top side into the carrier device, the lifting mechanism is separated from the positioning columns to extend the pushed part of the positioning columns, and the carrier device is adapted for moving out from the shelf.
Patent TW-I806350-B (TW)
Title: 半導體記憶裝置
Inventor: IIJIMA NATSUKI
IPC: H01L23/485
Filed: 2022-01-11
Granted: 2023-06-21
Abstract: 一種根據一實施例之半導體記憶裝置包含：一第一導電層；一堆疊體，其包含在該第一導電層上方交替地逐一堆疊之複數個第二導電層與複數個第一絕緣層，並且包含一台階部分，在該台階部分中該複數個第二導電層成階面；以及一板狀部分，其包含一第三導電層，該第三導電層在該堆疊體中沿一堆疊方向及一第一方向自該台階部分連續地延伸至一記憶區域，該板狀部分在與該堆疊方向及該第一方向兩者交叉之一第二方向上分割該堆疊體。該板狀部分在該台階部分中包含在該第一方向上間斷地配置之複數個觸點部分，該複數個觸點部分穿透該堆疊體並與該第一導電層連接。
Patent TW-I799118-B (TW)
Inventor: CHU CHAO-CHIEH
IPC: H01L31/18
Filed: 2022-01-28
Granted: 2023-04-11
Abstract: 本發明公開一種雙能區光電效應電極耦合的雙異質接面太陽能電池及其製造方法。雙能區光電效應電極耦合的雙異質接面太陽能電池包括第一端電極、第一太陽能電池、第二太陽能電池、共用電極結構以及第二端電極。第一太陽能電池連接於第一端電極，並具有第一PIN異質接面結構。第二太陽能電池設置於第一太陽能電池上，並具有一第二PIN異質接面結構。共用電極結構設置在第一太陽能電池與第二太陽能電池之間，以並聯第一太陽能電池與第二太陽能電池。第二端電極設置在第二太陽能電池上。
Patent TW-I790132-B (TW)
Title: 一種wc基硬質合金及其應用
Inventor: LIU CHAO
IPC: C22C29/08
Filed: 2022-02-25
Granted: 2023-01-11
Abstract: 本發明提供了一種WC基硬質合金，其分子式為T-WC-HAE，其中T為碳化物、氧化物或硼化物中的至少一種，HAE為高熵合金；所述HAE選自Al、Cu、Nb、Ti、Zr、Ge、Si、V、Ta、Cr、Mn、Ce、Mo、W、Hf元素中的至少五種；所述T中包含B元素；所述WC基硬質合金中HAE的含量為0.5wt%-5wt%，所述T的含量為35wt%以下，其餘為WC和不可避免的雜質；所述B的含量為0.1wt%-3wt%；所述HAE的熔點為1850℃以下；所述HAE中各元素間的原子比按能譜儀的測定介於0.33-1。該新型合金體系的WC基硬質合金，具有優異的強度和韌性，較高的熱導率及熱穩定性，密度高，能夠通過加工達到光學級表面要求。
Patent TW-I812057-B (TW)
Inventor: FUJITA MINORU
IPC: B28D5/00
Filed: 2022-03-11
Granted: 2023-08-11
Abstract: The present invention is to make a β-type gallium oxide substrate with a (001) plane as the main plane be well divided. 
 
     The division method of β-type gallium oxide substrate of the present invention is provided with: a step of forming a plurality of the first dividing grooves 13 along the extending direction of a (100) plane of the β-type gallium oxide substrate 10 with the (001) plane 
as the main plane; a step of processing the β-type gallium oxide substrate 10 into mini squares by cutting the β-type gallium oxide substrate 10 in a perpendicular direction of the extending direction of the first dividing groove 13 and a step of splitting the mini squares of the β-type gallium oxide substrate 10 along the first dividing groove 13 into individual pieces. In this way, the plurality of the first dividing grooves 13 are formed along the cleavage surface, division can be well performed without flaky peeling on the cleavage surface by the split along the first dividing grooves 13.
Patent TW-I816558-B (TW)
Inventor: GUO YUCHEN
IPC: H04W88/10
Filed: 2022-09-22
Granted: 2023-09-21
Abstract: This application provides a radio frame sending method and apparatus, and a radio frame receiving method and apparatus, configured to carry first information which is used to identify a first MLD in an MLE included in a radio frame, so that after a receiver of the radio frame receives the radio frame, The receiver may obtain the information about the first MLD from the MLE based on the first information. In the method, the first AP generates a radio frame, where the radio frame includes an MLE, the MLE is used to carry information about a first MLD, the MLE includes first information, and the first information is used to identify the first MLD. The first AP sends the radio frame. This application is applied to a wireless local area network system that supports an IEEE 802.11ax next-generation WiFi protocol, such as 802.11be, or an 802.11 series protocol such as EHT.
Patent ZA-200005801-B (ZA)
Title: Indexable insert for end mills.
Inventor: ASTROEM MAGNUS
IPC: B23C5/20
Filed: 2000-10-18
Abstract: A cutting insert comprises an upper chip surface (16), a bottom surface (17) and side faces (18, 19) therebetween. At each of the end faces the cutting insert has axially protruding portions (22, 23), each of which appears with a bevel face (26, 27). Main cutting edges are provided in the intersection between the chip surface (16) and the side surfaces (18, 19). On each side surface is provided a clearance surface (30) formed on a protruding portion (31) which via a step clearance extends into a secondary helically twisted clearance surface, the chip angle of which increases with increasing cutting depth. With the cutting insert regarded in plan view the bevel face is oriented in straight angle towards the main cutting edge (24, 25). Thanks to this embodiment is achieved constant functional edge angle along a wave-shaped edge line, which combined with step clearance and large positive axial angle ( alpha ) enables improved precision when machining a 90-degree shoulder in a work piece, which contributes to a more even wear along the main cutting edge and increased life-time of the cutting insert. <IMAGE>
Patent ZA-200005992-B (ZA)
Title: A device for closing bottles containing liquids under pressure, especially champagne or similar products.
Inventor: GRAZIA ORFEO
IPC: B65D41/12
Filed: 2000-10-25
Abstract: The invention relates to a device (1) for closing bottles containing a liquid under pressure, especially champagne or similar products, of the type comprising a cylindrical, hollow stopper (2) having a longitudinal axis (3) and a lateral surface (6), the stopper (2) being designed to be inserted into the opening (4) of a bottle neck (5) and closed by a transversal surface (7) having a projecting rim (8) that rests on the annular end face (9) of the neck (5); a closing cap (10) having a peripheral portion (11) that engages the annular outer edge (12) of the neck (5); a seal (13) engaged to an inner end (14) of the closing cap (10) and acting on the annular end face (9) of the neck (5) and on the transversal surface (7) of the stopper (2). The seal (13) comprises an annular protuberance (16) extending continuously towards the inside of the bottle and having a first, thick outer portion (30) that acts on an outer portion (18) of the annular end face (9) of the bottle neck (5), and a second, thin portion (31) that extends towards the longitudinal axis (3) in such a way as to act on the annular end face (9) of the neck (5) and on the transversal surface (7) of the stopper (2). <IMAGE>
Patent ZA-200205902-B (ZA)
Title: Azacyclic compounds for use in the treatment of serotonin related diseases.
Inventor: ANDERSSON CARL M
IPC: C07D417/06
Filed: 2002-07-23
Abstract: Compounds and methods are provided for the treatment of disease conditions in which modification of serotonergic receptor activity has a beneficial effect. In the method, an effective amount of a compound is administered to a patient in need of such treatment.
Patent ZA-200208488-B (ZA)
Title: Textile isolating material with integrated latent heat storage material.
Inventor: FIELD ALAN
IPC: A41D31/00
Filed: 2002-10-21
Abstract: The invention relates to a multi-layered textile isolating material, such as isolating tissue or isolating woven material. The aim of the invention is to improve said isolating material, in particular with regard to thermal applications, whereby particles of latent heat storage material are arranged between the layers and said latent heat storage material is paraffin with an added thickener such as Kraton G.
Patent ZA-200209231-B (ZA)
Title: In-situ recovery of hydrocarbons from a kerogen-containing formation.
Inventor: BERCHENKO ILYA EMIL
IPC: E21B43/30
Filed: 2002-11-13
Abstract: A method is disclosed for treating a hydrocarbon containing formation in-situ and producing a hydrocarbon fluid from the formation, which method comprises pyrolysing hydrocarbons present in the formation at a hydrogen partial pressure of at least 1 bar and at most 50 bar, thereby producing hydrocarbons having a high API gravity, a low carbon number and a low olefins and poly-aromatic compound content.
Patent ZA-200401842-B (ZA)
Title: Process for the maturation of dentritic cells and a vaccine.
Inventor: ADAMS MALCOLM
IPC: A61K39/002
Filed: 2004-03-05
Abstract: The invention proves a method of producing mature dendritic cells in vitro, which comprises the step of culturing the immature dendritic cells in the presence of a specifically configured high molecular weight double stranded RNA (dsRNA) polymer. The specifically configured high molecular weight dsRNA polymer is typically selected from the group comprising poly[I]:poly [CxU]; poly [I]:poly [GxU]; poly [A]: poly [UxC]; poly [A]:poly [UxG]; poly [U]:poly [AxC]; poly [U]:poly [IxU]; poly [C]:poly [GxA]; poly [C]:poly [GxU]; poly [G]:poly [CxA]; poly [G]:poly [CxU] and AMPLIGEN® (poly[I]:poly[C12U]), where x is on average a number from 3 to 40. The immature dendritic cells may be exposed to an antigen before they are matured, and a vaccine including the antigen-presenting mature dendritic cells can then be prepared. A method of treating cancer, a virus, parasite and microorganism is also disclosed.
Patent ZA-200600078-B (ZA)
Title: Printing machine
Inventor: MATTHIAS GYGI
IPC: B65H/
Filed: 2004-06-29
Abstract: The machine has a transfer cylinder for transferring a substrate onto a printing cylinder (6). One of two breaker plate cylinders (7, 8) prints the substrate by screen printing using an ink containing pigments. A chain clip system (9) removes the substrate after printing operation. The cylinder (6) has magnets positioned in a location corresponding to the printing by the cylinders (7,8) that are engaged with the cylinder (6). The breaker plate cylinders are engaged with the printing cylinder. An independent claim is also included for a printing method by screen printing of a substrate.
Patent ZA-200704381-B (ZA)
Title: Hoisting mechanism for steel processing ladies in RH degassers
Inventor: ARNO LUVEN
IPC: B22D/
Filed: 2007-05-29
Abstract: Lifting device (13) comprises lifting arms (14) on one end for interacting with holders (12) formed on a ladle (11). The arms are held in a fixed support (17) on the other end. The support comprises a runway (18) formed as a circular bent section on the support ends of the arms and a fixed revolving strip for axially guiding the runway during rotation of the arms.
Patent ZA-202005965-B (ZA)
Title: Multilevel deep well cooling and geothermal utilization system and process
Inventor: HUANG PENG
Filed: 2020-09-28
Abstract: A multilevel deep well cooling and geothermal utilization system and process. The system comprises a deep well heat harnessing system (1), a shallow part heat-exchanging system (2), and a high-temperature water lifting system (3). The deep well heat harnessing system (1) comprises a heat absorbing pipe (5), a thermally-conductive fluid lifting pipe (6-2), a thermally-conductive fluid lowering pipe (6-1), temperature sensors (7-1 and 7-2), and a water pump (9). The shallow part heat-exchanging system comprises a heat-dissipating pipe (11), a heat-storing water pool (10), a water intake pump (12-1), a water intake valve (13-1), a temperature sensor (7-3) and a liquid level meter (14). The high-temperature water lifting system comprises a water discharging pump (12-2), a flowmeter (8-2), a water discharging valve (13-2), and a high-temperature water lifting pipe (15). The system is structurally simple, can be used for an extended time, utilizes multiple levels of mine shafts for continuous cooling, provides significant effects, a broad cooling range, a high geothermal utilization rate, and a low unit energy consumption, effectively solves the problem of overheating of a deep well coal-mining face, and provides a comfortable working environment for underground workers.
Patent ZA-202203596-B (ZA)
Title: Apparatuses, methods, and systems for vibratory screening
Inventor: COLGROVE JAMES R
Filed: 2022-03-29
Abstract: Vibratory screening machines that include stacked screening deck assemblies are provided. In some embodiments, at least one of the vibratory screening machines can include an outer frame, an inner frame connected to the outer frame, and a vibratory motor assembly secured to the inner frame for vibrating the inner frame. A plurality of screen deck assemblies can be attached to the inner frame in a stacked arrangement, each configured to receive replaceable screen assemblies. The screen assemblies can be secured to respective ones of the plurality of the screen deck assemblies by tensioning the screen assemblies in a direction that a material to be screened flows across the screen assemblies. An undersized material discharge assembly can be configured to receive materials that pass through the screen assemblies, and an oversized material discharge assembly can be configured to receive materials that pass over the screen assemblies.
Patent GR-1004543-B (GR)
Title: Method for the application of integral glands to internal or external connection junction boxes
Inventor: PALAIOCHORINOS IOANNIS
IPC: H02G15/04
Filed: 2003-02-26
Abstract: t is disclosed herein a method relating to the application of integral glands for the automatic tightening and sealing of electric cables of any diameter (no 9, no 11, no 16, no 21 etc) destined to be used in internal and external connection junction boxes, with regard to the size and use of these last. The junction boxes can be of any geometrical shape (parallelogram, square) and the glands disposed in any arrangement. The apertures of the glands are covered with sealing pins (14) improving the sealing of the junction boxes.
Patent IN-155087-B (IN)
Inventor: GROSJEAN JEAN-CLAUDE
IPC: C21C7/072
Filed: 1981-12-02
Abstract: In a process for forming the bottom of a metallurgical container, especially the bottom of a converter for refining pig iron, of the type which comprises a metallic base, at least one layer of refractory material superimposed on the metallic base, a first layer of refractory bricks superimposed on the layer of refractory material, and a second layer of refractory bricks on said first layer, the steps of placing, spaced from each other, on said first layer a plurality of refractory elements permeable to gas and each enclosed in a metal casing open at the top, circumferentially surrounding the metal casing of each of the elements with bricks of a material which expands during rise of the temperature and thereafter completing the second layer with refractory bricks.
Patent MX-342488-B (MX)
Title: Vapor sheath for liquid dispensing nozzle.
Inventor: CLARKE ALLAN J
IPC: B05B15/02
Filed: 2010-08-11
Abstract: The present disclosure provides a device for preventing the fouling of a liquid dispensing nozzle. The end of the dispensing nozzle is placed In a hollow interior of a band carrying the same solvents that are dispensed by the nozzle. The solvent on the band evaporates into a gap between the ring and the dispensing nozzle, thus providing a vapor sheath or environment that helps to prevent the fouling of the dispensing nozzle.
Patent MX-367115-B (MX)
Title: Method for preparing silver nanoparticles with a structure of the worm type by precipitation in bicontinuous microemulsions.
Inventor: RAUL GUILLERMO LOPEZ CAMPOS
IPC: B22F9/06
Filed: 2012-07-16
Abstract: Method for preparing silver nanoparticles with a structure of the worm type that comprises the following steps: a) preparing a bicontinuous microemulsion of aqueous-phase nanotubes structure, the bicontinuous microemulsion is formed by water, one or more water-soluble metallic precursors, one or more non-water miscible organic solvents and one or more surfactants; b)adding one or more precipitating agents for producing a precipitation reaction in the aqueous-phase nanotubes in order to form silver nanoparticles with a structure of the worm type; and c) separating the silver nanoparticles of the bicontinuous microemulsion.
Patent MX-342829-B (MX)
Title: Light-weight bipolar valve regulated lead acid batteries and methods therefor.
Inventor: LEV FRANK
IPC: H01M50/121
Filed: 2011-03-04
Abstract: Light-weight VRLA batteries comprise a thin lead substrate that is supported by non-conductive, preferably plastic frames that provide structural stability to accommodate stress and strain in the bipole assembly. In particularly preferred batteries, the plastic frames are laser welded together and phantom grids and electrode materials are coupled to the respective sides of the lead substrate. Where the phantom grid is an ultra-thin lead grid, the lead grid is preferably configured to provide a corrosion reserve of less than 10 charge-discharge cycles and the bipole assembly is charged in an in-tank formation process. Where the phantom grid is a non-conductive grid, the lead grid is preferably a plastic grid and the bipole assembly is charged in an in-container formation process. Consequently, weight, volume, and production costs are significantly reduced while specific energy is substantially increased.
Patent MX-338861-B (MX)
Title: Formulations of random polymers for improving crude petroleum flow.
Inventor: CASSOU MARCELO LOZADA Y
IPC: C08F218/08
Filed: 2009-09-22
Abstract: The present invention is related to the use of formulations of new random copolymers and terpolymers, synthesized by a method of semi continuous emulsion polymerization, and that function as flow improvers, lowering the pour point and reducing the viscosity of Mexicans crude oils, which have gravities within the range of 9 to 30 DEG API.
Patent MX-344598-B (MX)
Title: .vaccine composition for controlling ectoparasite infestations.
Inventor: CARPIO GONZALEZ YAMILA
IPC: C07K14/435
Filed: 2011-09-26
Abstract: The present invention relates to the use of a peptide of PO ribosomal protein in the manufacture of a vaccine composition to control ectoparasite infestations and the transmission of their associated pathogens. This peptide is located between 267 and 301 amino acids of the PO protein, and can be obtained by recombinant means or by chemical synthesis. This peptide can be fused to a carrier protein or peptide, or an immuno - carrier and be included in an oily formulation. The formulations comprising the peptide vaccine confer protection against ticks and ectoparasites known as "sea lice" without generating autoimmunity in the host organism. Among these ticks may be mentioned species as Rhipicephalus microplus, Rhipicephalus sanguineus and Ixodes scapularis, and between sea lice are those of the Caligus and Lepeophtheirus genera.
Patent MX-368707-B (MX)
Title: Method of inhibiting mutant c-kit.
Inventor: VINAY K JAIN
IPC: A61P43/00
Filed: 2013-09-20
Abstract: The present invention includes a method of reducing or inhibiting the kinase activity of C-KIT mutant tyrosine kinase activity in a cell or a subject, and the use of such compound for treating mutant C-KIT driven cell proliferative disorder(s) in a subject related to using a compound of the present invention: or pharmaceutically acceptable salt thereof.
Patent MX-345153-B (MX)
Title: Vehicle bed extender.
Inventor: SMITH ANTHONY
IPC: B62D33/023
Filed: 2012-06-27
Abstract: A vehicle bed extender (100) adapted for simultaneous adjustment of both length and width. The extender includes a first side wall (102), a second side wall (104), and a connecting wall (106). The first and second side walls can attach to the vehicle storage bed, while the connecting wall attaches to the side walls in a sliding configuration along a direction nonparallel to the length and width of the bed extender. The connecting wall (106) can also be composed of multiple cross members with middle portions (110) of varying length such that the middle portions of the cross members are not vertically oriented. The vehicle bed extender can also be supported by a mount (124) at the front end of the vehicle bed that supports the connecting wall (106).
Patent MX-343857-B (MX)
Title: A spectrally selective panel.
Inventor: Victor rosenberg
IPC: G02B5/26
Filed: 2012-06-29
Abstract: The present invention disclosure provides a spectrally selective panel that comprises a first material being at least partially transmissive for light having a wavelength in the visible wavelength range and being arranged for guiding suitable light. Further, the panel comprises a diffractive element being positioned in, at or in the proximity of the first material. The diffractive element is arranged to deflect predominantly light having a wavelength in an IR wavelength band. The first material is arranged and the diffractive element is oriented such that at least a portion of energy associated with IR light incident from a transversal direction of the spectrally selective panel is directed along the panel towards a side portion of the panel.
Patent MX-344751-B (MX)
Title: Genes encoding major capsid protein l1 of human papilloma virus's.
Inventor: ZHANG GAOXIA
IPC: C12N15/81
Filed: 2008-11-24
Abstract: codon-optimized genes encoding major capsid protein L1 of human papilloma virus. These genes can be expressed into major capsid protein L1 of human papilloma virus after being transduced into yeast cells with high efficiency. A macromolecule with immunogenicity, which is produced by expression of the codon-optimized genes encoding major capsid protein L1 of human papilloma virus in yeast cells, the uses and the composition thereof are provided.
Patent MX-355281-B (MX)
Title: Metal pipe manufacturing method and manufacturing equipment.
Inventor: KAZUHIRO UCHIDA
IPC: C21D9/08
Filed: 2013-02-22
Abstract: Provided is a metal pipe manufacturing method capable of limiting hardening failures. The metal pipe manufacturing method of an embodiment corrects bends in a metal pipe using a straightening machine (10). Next, both pipe ends of the metal pipe in which bending has been corrected is cut using a pipe cutting device (20). Then, multiple metal pipes, both ends of which have been cut, are lined up in the axial direction, conveyed to a hardening device (30) and hardened by heating the metal pipes using induction heating and then cooling.