baber/WOPTO huggingface dataset:
Patent WO-2019069312-A2 (WO)
Title: System for detecting an intraoral disease and determining a personalized treatment scheme and method of doing same
Inventor: STAHL VERONICA
Filed: 2018-10-04
Abstract: The current invention discloses a system for detecting an intraoral disease and determining a personalized treatment scheme; the system comprising: a. a reservoir configured for accommodating a sample of a biologic material collected in an oral cavity of a patient; b. a first detector for detecting a first substance originating from bacteria; c. a second detector for detecting a second substance originating from at least one of an immune and an inflammatory system of the patient; d. a control unit configured for operatively receiving signals from the first and second detectors and analyzing the signals; and e. display and communication means configured for presenting results of signal analysis; wherein the control unit is configured for determining said treatment scheme comprising relevant antimicrobial compositions and a dosing frequency thereof. Additionally, the present invention recommends customized cannabis-based oral care products.
Patent WO-2005069742-A2 (WO)
Inventor: BORASE ASHOK PUNJU
Filed: 2004-12-10
Abstract: Crystalline memantine hydrochloride with improved properties.
Patent WO-2011111066-A2 (WO)
Title: Composition et ses utilisations
Inventor: RENGASWAMY MATHIYAZHAGAN
IPC: A61K31/4184
Filed: 2011-03-09
Abstract: La présente invention a pour objet général des compositions pharmaceutiques et leur utilisation pour la prophylaxie ou le traitement d'affections associées à une hyperglycémie ou à une hypertriglycéridémie, comprenant (mais sans limitation) le diabète (par exemple le diabète de Type 2) et l'obésité. La présente invention concerne également des méthodes de prophylaxie ou de traitement de telles affections, basées sur la découverte qu'un inhibiteur d'une activité de la phosphodiestérase 3 et un inhibiteur de l'activité du récepteur de l'angiotensine fournissent un effet synergique souhaitable sur l'hyperglycémie et l'hypertriglycéridémie.
Patent WO-2012131729-A2 (WO)
Inventor: PAWAR TULSIBHAI BHADUBHAI
IPC: A61K36/185
Filed: 2012-03-30
Abstract: A herbal medicament for curing of bloat. The medicament comprising predefined amount of  Careya 
 arborea  in combination with or without pharmaceutically acceptable excipient and / or adjuvant. A method for the preparation of said medicament is also disclosed.
Patent WO-2013157015-A2 (WO)
Title: Procédé et système pour afficher des actions dynamiques et accessibles avec des identifiants uniques et des activités
Inventor: YOGESH CHUNILAL RATHOD
IPC: H04W4/21
Filed: 2012-04-27
Abstract: L'invention concerne des procédés, des systèmes et un appareil permettant des actions dynamiques sur la base d'un identifiant unique, y compris un ou plusieurs numéros de téléphone portable et des activités. Un procédé consiste à joindre, associer, fournir, présenter, et accéder à la demande, d'une manière dynamique, manuelle ou automatique, à des liens d'action dynamiques et accessible de façon intégrée, unifiée, mobile, en ligne, à couplage souple, conviviale, personnalisée, globale, contextuelle, interconnectée, abrégée, portable avec un ou plusieurs identifiants uniques y compris des numéros de téléphone portable et avec des activités pour permettre à des utilisateurs et à des utilisateurs connectés de créer plusieurs canaux de communication personnalisés, réseaux sociaux, ce qui facilite la participation à des activités, et la possibilité d'une communication en temps réel, d'une coopération, d'interactions, d'actions dynamiques, de transactions, de rassemblements, d'un flux de travail, d'une publication et d'une plateforme de partage.
Patent WO-2020017667-A2 (WO)
Title: Method for controlling volunteer corn in cultivation of dicot crops
Inventor: SADA YOSHINAO
IPC: A01N43/40
Filed: 2019-11-27
Abstract: Provided is a method for controlling volunteer corn plants tolerant to protoporphyrinogen oxidase (PPO) inhibiting herbicides in a cultivation area of a dicot crop, including a step of applying an Acetyl-CoA carboxylase (ACCase) inhibiting herbicide to the corn plants.
Patent WO-2009035302-A2 (WO)
Title: Feuille autoréfléchissante de type trièdre trirectangle présentant une force de traction supérieure
Inventor: KIM HYEN DAE
IPC: G02B5/12
Filed: 2008-09-12
Abstract: L'invention concerne une feuille rétroréfléchissante dans laquelle est utilisé le principe de rétroréflexion de type trièdre trirectangle. Ladite feuille est composée d'une couche structurelle formée d'une feuille thermoplastique transparente flexible faite d'un matériau transparent permettant une transmittance élevée de la lumière et présentant une surface lisse formant une surface réfléchissante, ladite couche structurelle comprenant également un tissu tissé. Une couche microprismatique de type trièdre-trirectangle ayant une fonction rétroréfléchissante est formée sur une surface de la couche principale intégrant la feuille thermoplastique transparente et le tissu tissé face à la surface réfléchissante. Ladite feuille rétroréfléchissante présente une configuration selon laquelle le tissu tissé présentant une force de traction élevée est inséré dans la feuille de polymère thermoplastique (PVC, TPU, PO ou acryle) transparente, et est adaptée pour des utilisations finales nécessitant une force de traction élevée.
Patent WO-2009113821-A2 (WO)
Title: Iron-based sintered body with high strength and high elongation and preparation method thereof
Inventor: PARK DONG-KYU
IPC: C04B35/42
Filed: 2009-03-12
Abstract: Disclosed is a method for preparing an iron-based sintered body, which comprises: mixing a lubricant and at least two kinds of powder to prepare a mixture; press-molding the mixture to form a molding; and pre-sintering the molding, then sintering and cooling the molding. The powder includes Cr 1.0~2.5wt%, Mo 0.1~0.8wt%, Mn 1.0~2.5wt%, C 0.1~1.1wt% and the balance of Fe and inevitable impurities, wherein Mn in the powder is present in an elemental form. Also, the sintered body has a sintering density of 7.0g/cm 3  or more. In the disclosed method, the sintering is carried out at a temperature of 1150℃-1350℃ for 15-90 minutes in a reductive or neutral atmosphere which maintains a dew point of -30℃ or less. Accordingly, an iron-based sintered body with high strength and high elongation can be obtained through the method.
Patent WO-2009131346-A2 (WO)
Title: Mems probe card and manufacturing method thereof
Inventor: KIM SANGHEE
IPC: B81B7/02
Filed: 2009-04-21
Abstract: The present invention relates to an MEMS (Micro Electro Mechanical Systems) probe card and a manufacturing method thereof, the method comprising the steps of: (a) preparing the first to nth layers of low-temperature co-fired ceramics (LTCC) substrates at which a via-hole is formed, (b) filling the via-hole with a via filler conductor or a resistor, (c) preparing a multilayer LTCC substrate by laminating the first to nth layers of LTCC substrates and heat-treating the laminated LTCC substrates at 1000℃ or lower, (d) forming an insulating film on the surface of the multilayer LTCC substrate, and (e) forming a thin conductive wire on the surfaces of the insulating film and the via filler conductor.
Patent WO-2009148252-A2 (WO)
Title: Stroke-targeting peptide and use thereof
Inventor: LEE BYUNG HEON
IPC: C07K7/06
Filed: 2009-06-02
Abstract: The present invention relates to a stroke-targeting peptide and use thereof. More specifically, the present invention relates to: a stroke-targeting peptide wherein it is represented by an amino acid sequence selected from the group consisting of sequence numbers 1 to 4; and use of the stroke-targeting peptide. The peptide provided by the present invention is characterized by binding specifically to stroke cells within a living body, and thus it can beneficially be used in stroke-diagnosing markers and kits, and drug-delivery compositions and pharmaceutical compositions targeting stroke, and stroke-imaging compositions.
Patent WO-2009154413-A2 (WO)
Title: Method for detecting failures of random access procedures
Inventor: CHUN SUNG-DUCK
IPC: H04W74/08
Filed: 2009-06-18
Abstract: A method of performing a random access channel (RACH) procedure between a mobile terminal and a network includes the steps of detecting whether a random access response (RAR) is received from the network within a certain time period, the RAR including information about a random access channel (RACH) preamble transmitted to the network; and if the RAR is not received within the certain time period or if the information about the transmitted RACH preamble included in the RAR does not match the transmitted RACH preamble, performing a first procedure to detect failures in the RACH procedure; and if the RAR is received within the certain time period and if the information about the transmitted RACH preamble included in the RAR matches the transmitted RACH preamble, performing a second procedure to detect failures in the RACH procedure.
Patent WO-2010077033-A2 (WO)
Title: Functional shoe with shock absorbing function and rebounding elastic force
Inventor: HA YONGHO
IPC: A43B7/32
Filed: 2009-12-28
Abstract: The present invention relates to a functional shoe having a shock absorbing function and a rebounding elastic force. More particularly, the present invention relates to a functional shoe having shock-absorbing means interposed between an outer sole and a midsole, wherein said shock-absorbing means includes: a lower member coupled to the upper surface of the outer sole; an upper member coupled to the lower surface of the midsole; and a shock mitigation member to which a lower shock mitigation part and an upper shock mitigation part are alternately attached, wherein said lower shock mitigation part is bent into a round shape, and both ends thereof are bonded to the side surface of the lower member forming a tunnel shape, and said upper shock mitigation member is bent into a round shape, and both ends thereof are bonded to the side surface of the upper member forming an inverted tunnel shape. Thus, the shoe of the present invention absorbs shocks at the heel part and at the toe part of a foot, on which the largest load is applied while walking, and quickly rebounds from the ground at the same time by an elastic force, thereby providing a wearer with feeling of optimum stability.
Patent WO-2010123332-A2 (WO)
Inventor: TSAI JIANN-AN
IPC: G06V30/224
Filed: 2010-04-26
Abstract: La présente invention se rapporte à un récepteur et un émetteur de code à deux dimensions (2D) et à des procédés pour leur utilisation dans un système de communication à code à deux dimensions. Le procédé pour utiliser le récepteur de code à deux dimensions comprend la réception d'une séquence de codes à 2D en provenance d'un émetteur de codes à 2D comprenant des données encodées, les codes en 2D de la séquence étant reçus de manière successive, et le décodage de la séquence reçue de codes en 2D pour obtenir des données.
Patent WO-2011027984-A2 (WO)
Title: Sensor for measuring electrical characteristics
Inventor: LEE SANG WON
IPC: G01R29/00
Filed: 2010-08-24
Abstract: According to the present invention, a sensor for measuring electrical characteristics is provided, comprising a voltage sensor and a current sensor. The voltage sensor comprises: a printed circuit board defining a round through-hole into which a power transmission line is inserted; a ring-shaped electrode fixed against the inner periphery of the through-hole to measure a voltage formed in the power transmission line; and a first terminal portion, one end of which contacts one side of the electrode and the other end of which is exposed through a side of the printed circuit board. The current sensor comprises: a pick up coil wound like a spring and bent along the outer periphery of the through-hole so as to form a doughnut shape when viewed from above, and arranged with at least a portion thereof embedded in the printed circuit board, wherein said pick up coil measures a current flowing in the power line by means of induced current; and a second terminal portion extending from both ends of the pick up coil and exposed through a side of the printed circuit board.
Patent WO-2011025329-A2 (WO)
Inventor: LEE JUN HEE
IPC: C09K11/06
Filed: 2010-08-30
Abstract: Disclosed are a fluorescent composition for staining DNA and a method for measuring DNA amplification using the same. More particularly, disclosed are a novel fluorescent compound that emits light by intercalating with DNA and a method for measuring DNA amplification using the same. The novel fluorescent compound is advantageous in that, due to high sensitivity, target-specific amplification products by real-time polymerase chain reaction(PCR) can be accurately quantified without affecting the PCR reaction. In addition, the compound is unharmful to the human body, can be prepared at low cost, and allows monitoring of various DNA and RNA reactions in vitro or in vivo.
Patent WO-2011108880-A2 (WO)
Title: Apparatus for transmitting and receiving signal in distributed antenna system
Inventor: KANG JI WON
Filed: 2011-03-04
Abstract: The present invention relates to a method for receiving a signal through a terminal in a distributed antenna system (DAS) comprising the steps of: receiving composition information of a local midamble corresponding to a terminal or a terminal group including the terminal from a base station which belongs to the DAS; and receiving the local midamble from the base station, and the local midamble can be a midamble corresponding to one or more effective transmission antennas associated with the terminal or the terminal group of a plurality of antennas of the base station.
Patent WO-2011122884-A2 (WO)
Title: Method and apparatus for receiving a white space map in a wireless lan system
Inventor: KIM EUN SUN
IPC: H04W48/16
Filed: 2011-03-31
Abstract: The present invention relates to a method and apparatus for receiving a white space map in a wireless LAN system. According to one aspect of the present invention, in a method in which a first station (STA) receives a white space map in a wireless LAN system, wherein the first station operates as an unlicensed device that is allowed to operate in an available channel not used by a licensed device in a white space band, the first station receives, from a second station, a frame including the white space map which includes a black list and a first field for indicating that the white space map contains the black list, and operates in at least one channel from the rest of the channels in TVWS, excluding the channel contained in the black list, wherein the black list is a list of channels which cannot be used by the unlicensed device.
Patent WO-2012023703-A2 (WO)
Inventor: HWANG JUNG KWON
IPC: B44C5/06
Filed: 2011-07-12
Abstract: 본 발명의 이끼 조형물의 제조방법은 고흡수력 소재의 플로랄 폼을 원하는 형상으로 절삭하여 조형물을 형성하는 조형물 형성단계와, 상기 조형물을 이끼 배양에 필요한 수액에 침지시키는 침지단계와, 수액이 흡수된 상기 조형물의 표면에, 이끼종자의 활착율을 높이기 위해 기반 배양토를 이루는 피트 모스(peat moss)를 도포하는 도포단계와, 피트 모스가 도포된 상기 조형물에 물을 분사하는 분사단계와, 물이 분사된 상기 조형물의 표면에, 이끼 종자와 피트 모스(peat moss)를 1:3의 비율로 혼합하여 재도포하는 재도포단계 및 이끼종자가 도포된 상기 조형물을 습도 70~80%, 온도 15~25℃인 환경에 두고 이끼를 배양하는 배양단계를 포함한다.
Patent WO-2012023819-A2 (WO)
Inventor: PARK KYUJIN
IPC: H04B7/26
Filed: 2011-08-18
Abstract: La présente invention porte sur un procédé pour qu'un terminal transmette des données de liaison montante (UL) dans un système d'accès sans fil, lequel procédé comprend les étapes suivantes : la réception d'informations d'allocation de ressources de liaison montante pour une transmission de données de liaison montante à partir d'une station de base par l'intermédiaire d'un canal de commande de liaison descendante, les informations d'allocation de ressources de liaison montante comprenant des informations d'allocation de blocs de ressources pour chaque intervalle d'une sous-trame et des informations de schéma de codage et de modulation (MCS) ; la réception, à partir de la station de base, d'informations de séquence allouées à chaque terminal, de façon à transmettre des données de liaison montante par l'intermédiaire d'un schéma de multiplexage de répartition en code (CDM) en coopération avec d'autres terminaux dans une région de paire de blocs de ressources de la sous-trame ; et la transmission de données de liaison montante à la station de base par l'intermédiaire de la région de paire de blocs de ressources, conformément aux informations de séquence reçues.
Patent WO-2012030102-A2 (WO)
Title: Terminal mobile et procédé basé sur un contrôle multi-tactile pour contrôler une sortie de données de listes en rapport avec le terminal
Inventor: LIM WAN SOO
IPC: H04B1/40
Filed: 2011-08-24
Abstract: La présente invention se rapporte à un terminal mobile comprenant un procédé basé sur un contrôle multi-tactile, le terminal mobile étant adapté pour contrôler une sortie de données de listes. L'invention se rapporte d'autre part à un procédé associé. Le terminal mobile selon l'invention est apte à contrôler une sortie de données de listes. Le terminal mobile comprend un écran tactile pour générer divers événements multi-tactile. Le terminal mobile comprend par ailleurs un module de stockage pour stocker des listes d'éléments de données qui sont délivrées en sortie vers l'écran tactile. Le terminal mobile selon l'invention comprend en outre un module de contrôle pour contrôler l'affichage de données de listes qui sont composées d'une pluralité d'éléments pour un programme d'application en réponse à une fonction utilisateur actuellement active, et qui change en réponse à la génération d'un événement multi-tactile un agencement des données de listes sur l'écran tactile en fonction du type de programme d'application pour délivrer en sortie un nouvel écran de sortie de listes.
Patent WO-2012047068-A2 (WO)
Inventor: YI GYUCHUL
IPC: H01L33/04
Filed: 2011-10-07
Abstract: The present invention provides a light-emitting element comprising: a carbon layer comprising a graphene; a plurality of fine structures having grown toward the upper side of the carbon layer; and a light-emitting structure layer formed on the surface of the fine structures.
Patent WO-2012093838-A2 (WO)
Title: 물체감지장치 및 금융 기기
Inventor: KIM HYUN
IPC: G07F19/00
Filed: 2012-01-03
Abstract: 본 명세서는 물체감지장치 및 금융 기기에 관한 것이다. 일 측면에 따른 물체감지장치는, 물체의 상태를 확인하기 위한 하나 이상의 센서를 포함하는 감지부; 및 상기 물체가 이송되는 과정에서 상기 물체가 상기 하나 이상의 센서 측으로 이송되도록 상기 물체의 이송 경로를 변경하는 가이드 기구를 포함한다.
Patent WO-2012128459-A2 (WO)
Title: 솔라웨이퍼 카세트
Inventor: LEE KANG SUNG
IPC: B65D85/38
Filed: 2012-01-18
Abstract: 솔라웨이퍼 카세트가 개시되어 있다. 개시된 솔라웨이퍼 카세트는, 일정간격을 두고 마주하게 배치되는 제1, 2 앤드플레이트, 상기 제1, 2 앤드플레이트에 양단이 고정되게 설치되어 상기 제1, 2 앤드플레이트 사이로 수납되는 다수의 솔라웨이퍼들의 측면 및 저면을 지지하는 다수의 지지바들로 이루어진 솔라웨이퍼 카세트로서, 상기 제1, 2 앤드플레이트(110,120) 중 적어도 어느 한 앤드플레이트의 내면에 상기 각 지지바(130)들을 조립하기 위해 조립슬롯(111)이 형성되되, 상기 조립슬롯(111)의 외측 및 내측에는 입출 개구부(111a) 및 안내 개구부(111b)가 각각 형성되고, 상기 안내 개구부(111b)의 내측 모서리에는 걸림턱(111c)이 형성되며, 상기 각 지지바(130)의 상기 조립슬롯(111)과 대응되는 단부에는 상기 입출 개구부(111a)를 통해 조립슬롯(111)으로 내입되는 계단형의 조립블록(140)이 구비된 것을 특징으로 한다.
Patent WO-2013009135-A2 (WO)
Title: 광학 패키지 장치
Inventor: KIM KYOUNG MIN
IPC: H01S3/067
Filed: 2012-07-13
Abstract: 광학 패키지 장치는 입력 광섬유로부터 수신한 광신호를 평행하게 투사시키는 제 1 렌즈; 상기 제 1 렌즈를 통해 투사된 광신호를 아이솔레이터로 전달하되 상기 광신호를 분기시키는 탭 커플러 필터; 상기 분기된 광신호를 센싱하는 포토 다이오드; 상기 탭 커플러 필터로부터 수신한 광신호의 흐름 방향을 고정시키는 아이솔레이터; 펌핑광을 생성하는 펌프 레이저 다이오드; 상기 펌핑광과 상기 아이솔레이터를 통과한 광신호를 결합하는 파장 분할 멀리플렉서 및 상기 펌핑광이 결합된 광신호를 출력 광섬유로 평행하게 투사시키는 제 2 렌즈를 포함한다.
Patent WO-2013022195-A2 (WO)
Title: Suspender structure in which shoulder straps and waist straps are integrally connected
Inventor: Park chong-kun
IPC: A45C13/30
Filed: 2012-07-18
Abstract: The present invention relates to a suspender structure in which shoulder straps and waist straps are integrally connected, wherein: shoulder straps and waist straps are integrally connected on a backing member such that the connected shoulder straps and waist straps can be interlocked in an integrated manner, whereby the length of the shoulder straps and the waist straps is adjusted at one time; and the waist straps integrally connected with the shoulder straps are connected by penetrating ring portions which are separately installed on both lower sides of the backing member, thereby allowing the backing member to adhere to the back part of a wearer. To this end, the present invention comprises: a backing member (110) which is positioned on the back part of a wearer; one pair of shoulder straps (120) each having one end (120a) that is respectively fixed to both upper sides of the backing member (110), and the other end (120b) that is wrapped round both shoulders of the wearer from the upper side to the lower side; one pair of waist straps (130) each having one end (130a) that is respectively connected to the other end (120b) of the shoulder straps (120), and the other end (130b) that respectively penetrates ring portions (111), which are fixedly installed on both lower sides of the backing member (110) such that the ring portions (111) are symmetrical to each other thereon, and are wrapped around both sides of the waist of the wearer; and female and male coupling means (140) which are positioned on the other end (130b) of the waist straps (130) such that the coupling means (140) oppose each other, and selectively couple the waist straps (130).
Patent WO-2013025026-A2 (WO)
Title: Appareil et procédé de limitation de brouillage de coexistence intra-dispositif dans un système de communication sans fil
Inventor: AHN JAE HYUN
IPC: H04W88/06
Filed: 2012-08-13
Abstract: L'invention porte sur un procédé et un appareil de limitation de brouillage de coexistence intra-dispositif par un terminal dans un système de communication sans fil. Le procédé de limitation de brouillage selon la présente invention consiste à : recevoir un message de reconfiguration de connexion de gestion des ressources radio (RRC) comprenant un intervalle de fenêtre de réponse d'accès aléatoire en provenance d'une première station de base ; comparer un seuil prédéterminé à un compteur d'échec de transmission de préambule ; et retenir une émission/réception dans une bande ISM durant l'intervalle de fenêtre de réponse d'accès aléatoire et effectuer un accès aléatoire vers une seconde station de base quand le compteur d'échec de transmission de préambule est supérieur au seuil prédéterminé.
Patent WO-2013028029-A2 (WO)
Inventor: HWANG SANG-YUN
IPC: H04W88/02
Filed: 2012-08-24
Abstract: L'invention porte sur un appareil et sur un procédé de réduction de consommation d'énergie dans un système de communication sans fil. L'appareil comprend une antenne, un module radiofréquence (RF), un premier amplificateur, un amplificateur de puissance externe et un dispositif de commande. Le module RF convertit un signal d'émission en bande de base en un signal RF. Le premier amplificateur amplifie la puissance du signal RF dans le module RF. L'amplificateur de puissance externe amplifie la puissance d'un signal de sortie du premier amplificateur. Lorsqu'un niveau de puissance d'émission d'un signal d'émission est inférieur ou égal à un niveau de sortie maximal du premier amplificateur, le dispositif de commande commande l'émission, par l'antenne, du signal d'émission amplifié par le premier amplificateur. Lorsque le niveau de puissance d'émission du signal d'émission est supérieur ou égal au niveau de sortie maximal du premier amplificateur, le dispositif de commande commande l'émission, par l'antenne, d'un signal d'émission amplifié par l'amplificateur de puissance externe.
Patent WO-2018231025-A2 (WO)
Title: 면역세포 이동에 의한 질환의 치료제 및 이의 스크리닝 방법
Inventor: KWON NAM HOON
Filed: 2018-06-18
Abstract: 본 발명은, 면역세포 이동에 의한 질환의 치료제 및 이의 스크리닝 방법에 관한 것으로, 보다 상세하게는 KRS 저해제 (발현 또는 활성 저해제)를 유효성분으로 포함하는 면역세포 이동 관련 질환의 예방 또는 치료용 약학적 조성물, KRS의 면역 세포 내 수준 조절, KRS의 세포막 위치 특이적 존재 수준 조절 또는 KRS의 세포막 으로의 이동 조절을 통해 면역세포의 이동을 조절하는 방법, 및 KRS를 이용한 면역 세포 이동에 의한 질환 치료제의 스크리닝 방법에 대한 것이다. 본 발명에 따라 KRS를 이용하여 면역세포의 이동을 조절할 수 있으며, 이는 면역세포 이동과 관련 한 질환의 예방, 개선 및 치료 등에 있어서 매우 유용하게 사용될 수 있다.
Patent WO-2019088740-A2 (WO)
Inventor: KIM JUNGHWAN
IPC: C30B29/36
Filed: 2018-11-01
Abstract: 본 발명의 일 실시예에 따른 실리콘계 용융 조성물은 실리콘카바이드 단결정을 형성하기 위한 용액 성장법에 이용되며, 실리콘, 크롬 (Cr), 바나듐(V) 및 알루미늄(Al) 을 포함하는 하기 식 1로 표현된다. Si a Cr b V c Al d  (식 1) 상기 식 1에서 a는 0.4 이상 0.9 이하이고, b+c는 0.1 이상 0.6 이하이고, c/ (b+c) 는 0. 05 이상 0. 95 이하이고, d는 0. 01 이상 0.1 이하이다.