baber/WOPTO huggingface dataset:
Patent JP-2022073774-A (JP)
Title: Game machine
Inventor: KITADA SHOHEI
IPC: A63F7/02
Filed: 2020-11-02
Abstract: To provide a game machine capable of appropriately controlling a notification mode of notification means.SOLUTION: A game machine includes: means for generating a special game state after execution of predetermined control and means for determining a game state when a trigger for opening privilege ball entry means is established on the basis of entry of game balls into a first or second specific ball entry area. Further, the game machine includes means for preventing execution of predetermined processing to detection of the game balls into the second specific ball entry area while the game state is a first state even if game balls enter the second specific ball entry area when the game state is the first state, for preventing execution of predetermined processing to detection of the game balls into the first specific ball entry area while the game state is a second state even if the game balls enter the first specific ball entry area when the game state is the second state, and for preventing execution of predetermined processing to detection of the game balls even if the game balls enter the first or second specific ball entry area when the game state is a third state.SELECTED DRAWING: Figure 466
Patent JP-2021080563-A (JP)
Title: Alignment device, alignment method, film deposition apparatus, film deposition method and method for manufacturing electronic device
Inventor: NAKASU YOSHIHIRO
IPC: C23C14/04
Filed: 2020-11-12
Abstract: To allow highly accurate alignment even when the optical axis of mark imaging means is inclined to a surface parallel to a mask.SOLUTION: The alignment device for relatively moving a substrate stage for holding a substrate and a mask stage for holding a mask to align the substrate and the mask comprises: mark imaging means for imaging a substrate side mark formed on the substrate and a mask side mark formed on the mask; and control means for determining a travel amount obtained by relatively moving the substrate stage and the mask stage on the basis of information on an image obtained by the mark imaging means, information on the optical axis inclination of the mark imaging means and information on a space between the surface of the substrate and the surface of the mask.SELECTED DRAWING: Figure 4
Patent JP-2022080022-A (JP)
Title: Wiring module
Inventor: IKEDA SHUYA
IPC: H01M50/50
Filed: 2020-11-17
Abstract: To provide a wiring module capable of reducing the cost of manufacture.SOLUTION: A wiring module 20 is attached to a plurality of power storage elements 11. The wiring module 20 comprises: a bus bar 30 connected to electrode terminals 12 of the plurality of power storage elements 11; an electric wire 40; and a circuit board 50 connecting the bus bar 30 with one end 43 of the electric wire 40. A conducting path 56 is wired in the circuit board 50, and the conducting path 56 includes a bus bar land 58 connected to the bus bar 30, an electric wire land 59 connected to the electric wire 40, and a fuse part 60 provided between the bus bar land 58 and the electric wire land 59.SELECTED DRAWING: Figure 5
Patent JP-2022081789-A (JP)
Title: Rotary electronic component
Inventor: IMAMURA MASAO
IPC: H01R39/00
Filed: 2020-11-20
Abstract: To provide a rotary electronic component that reduces wear and metal fatigue of a slider and has a longer rotational life than before.SOLUTION: A rotary electronic component is provided with a buffer member between a sliding unit of a slider and a rotor to urge the sliding unit to an annular electrode side with appropriate elastic force and hold the sliding unit. Thus, vibration of the sliding unit can be suppressed to reduce metal fatigue of the slider. In addition, by impregnating the buffer member with lubricant and bringing a part thereof into contact with the annular electrode, the lubricant can be applied to the annular electrode. Thus, sliding of the sliding unit becomes smooth to further reduce the wear of a contact portion. Further, since the buffer member functions to wipe an annular electrode surface, foreign matters such as dust on the annular electrode are collected, and adverse effect on the contact portion due to the foreign matters can be prevented. As a result, the rotary electronic component can obtain a long life and high operational reliability.SELECTED DRAWING: Figure 3
Patent JP-2022081359-A (JP)
Title: Multi-directional input device and game equipment
Inventor: NAKASE TAKEAKI
IPC: A63F13/24
Filed: 2020-11-30
Abstract: To provide a multi-directional input device and game equipment in which a user does not feel the difference in texture when maneuvering.SOLUTION: A first cam 31 and a second cam 33 have a C-shaped portion 35 formed in a substantially C shape, and a pair of rotating shaft portions 37 are formed at both ends of the C-shaped portion so as to form one rotation axis, the rotating shaft portion is sandwiched between a cover and a case, and the C-shaped portion has an elongated hole portion 39 through which an operating body 20 penetrates and guides an operating portion slidably in the direction of the rotating shaft, and the first cam and the second cam are assembled in the vertical direction. No difference in touch is felt when maneuvering a multi-directional input device in the present invention.SELECTED DRAWING: Figure 3
Patent JP-2022090870-A (JP)
Title: Control device for vehicle, control method for vehicle and control program
Inventor: ONDA YUSUKE
IPC: G06F21/64
Filed: 2020-12-08
Abstract: To shorten a time required to verify plural VM software by adopting a result of verification of software shared by a plurality of VMs.SOLUTION: A control device 10 for a vehicle includes an adoption determination unit 310 for determining whether or not to adopt a verification result of common software, acquired by verifying software of another VM, in accordance with an index preliminarily given to a VM in verifying software of each VM, and a verification unit 330 for adopting the verification result of the common software, acquired by verifying the software of the other VM to verify the software of the VM in the case of determining the adoption of the verification result of the common software, acquired by verifying the software of the other VM.SELECTED DRAWING: Figure 2
Patent JP-2021049380-A (JP)
Title: Thin and flexible absorbent articles
Inventor: CHRISTOPHER PHILIP BEWICK-SONNTAG
IPC: A61F13/15
Filed: 2020-12-10
Abstract: To provide absorbent articles which are thin and flexible, which fit garments, and which are able to sustain the shape and absorption speed properties in a sustained way even after absorbing fluids.SOLUTION: An absorbent article 10 comprises a fluid permeable topsheet 14, a backsheet, and an absorbent element disposed between the topsheet and the backsheet. The absorbent article has an acquisition rate as measured according to a SABAP test, and has a dry peak stiffness measured according to a bunch compression test. The ratio of the acquisition rate to the dry peak stiffness is at least 0.5 ml/Ns.SELECTED DRAWING: Figure 1
Patent JP-2022092899-A (JP)
Title: Reservation system
Inventor: OKABE HIDEFUMI
IPC: G06Q10/02
Filed: 2020-12-11
Abstract: To make a facility more convenient that includes a workspace for users and a stay space for protection target persons under protection of the users.SOLUTION: The present invention relates to a reservation system for a facility including a workspace for users and a waiting space for protection target persons under protection of the users. The reservation system includes: a workspace reservation receiving unit for receiving a workspace reservation as a reservation of the workspace by one of the users; and a pickup and drop-off reservation receiving unit for receiving pickup and drop-off reservations as reservations of pickup or drop-off between predetermined places for one of the protection target persons.SELECTED DRAWING: Figure 8
Patent JP-2022094024-A (JP)
Title: Spouting member connection structure, spouting member and packaging container
Inventor: ICHIMARU NAOHIRO
IPC: B65D25/42
Filed: 2020-12-14
Abstract: To provide a spouting member connection structure, a spouting member and a packaging container in which connection or disconnection of a spouting member to a receiving side device is easily operated.SOLUTION: A spouting member connection structure 100 comprises: a spouting member body 30 comprising a tubular insertion portion in which a spouting flow path 15 through which fluid flows is formed; a tubular closing body 40 into which the insertion portion is relatively displaceably inserted around the axis; and a receiver portion 20 in which a receiving hole 1a is formed. The closing body 40 has a drawing hole to lead the fluid in the spouting flow path 15 to the receiving hole 1a, and can switch between an opening position for opening the drawing hole and a closing position for closing the drawing hole, by relative displacement around the axis. On the outer peripheral surface of the closing body 40 and the inner peripheral surface of the receiving hole 1a, a first helical engaging portion 47 and a second helical engaging portion 51 which are engaged with each other and enable the closing body 40 and the receiver portion 20 to move relatively in a spiral direction are formed.SELECTED DRAWING: Figure 1
Patent JP-2022094985-A (JP)
Title: Manufacturing method of joining member
Inventor: MATSUMOTO SHINSUKE
IPC: F16B4/00
Filed: 2020-12-16
Abstract: To provide a novel method which can join a member at stable and high rigidity.SOLUTION: A manufacturing method of a joining member has: a cylindrical member insertion process for inserting a cylindrical member having a polygonal cross section shape insertion part at its tip into an opening of a base member in which the opening corresponding to the polygonal cross section shape of the insertion part of the cylindrical member is formed, and making the insertion part of the cylindrical member protrude to a side opposite to the base member; a press diameter expansion process for pressing and diameter-expanding the insertion part of the cylindrical member which is protruded to the side opposite to the base member in the cylindrical member insertion process; and a press integration process for pressing the insertion part of the cylindrical member which is expanded in a diameter by the press diameter expansion process to the base member, and integrating the cylindrical member and the base member.SELECTED DRAWING: Figure 1
Patent JP-2022095050-A (JP)
Title: Radiographic apparatus
Inventor: SAKURAGI SHICHIHEI
IPC: A61B6/00
Filed: 2020-12-16
Abstract: To provide a radiographic apparatus that allows a user to check the direction of the radiographic apparatus efficiently.SOLUTION: A radiographic apparatus according to the present invention includes a radiation ray detector for detecting a radiation ray and converting it to an image, and a housing that covers the radiation ray detector and includes a front face on which the radiation ray is incident, a back face opposed to the front face, and four side faces for connecting the front face and the back face. A first recessed part and a second recessed part having a recessed shape toward the radiation ray detector are provided in a peripheral region of the back face. The first recessed part is different from the second recessed part in at least one of the depth in an axial direction orthogonal to the back face, and the width in an axial direction parallel to the back face, and is provided at a position away from the second recessed part by 10 mm or more in the axial direction parallel to the back face.SELECTED DRAWING: Figure 3
Patent JP-2022096269-A (JP)
Title: Coating and piston ring
Inventor: HONDA KEIJI
IPC: F02F5/00
Filed: 2020-12-17
Abstract: To provide a coating and a piston ring which have the abrasion resistance, the peel resistance, and the crack resistance all in high levels.SOLUTION: A coating includes Cr, Ti, Si, and N; has the amount of Ti of more than 0 at% and 25 at% or less; and has a NaCl type crystal structure. A piston ring includes a base material, and the coating provided to cover at least a part of a surface of the base material.SELECTED DRAWING: Figure 1
Patent JP-2022097237-A (JP)
Title: Transmission unit and power system
Inventor: ARAKAWA JIRO
IPC: B60K1/00
Filed: 2020-12-18
Abstract: To provide a transmission unit which enables a second driving source to be efficiently installed at a first driving source to achieve hybridization, and to provide a power system.SOLUTION: A clutch unit 20 includes: a coupling element 23 which couples an output shaft 13 of an engine 10 to an input shaft 16 of a hydraulic pump 15 which is driven by a driving force of the engine 10, in a manner that power can be transmitted therebetween; and a motor generator 18 which generates a driving force separately from the engine 10. The motor generator 18 is disposed to avoid the coupling element 23 when viewed from an axial direction of the output shaft 13.SELECTED DRAWING: Figure 5
Patent JP-2021047912-A (JP)
Title: Work completion control device, work completion control method, and work completion control program
Inventor: MIYATAKE TAKESHI
IPC: G06Q40/00
Filed: 2020-12-23
Abstract: To provide a work completion control device, a work completion control method, and a work completion control program that manage sales and purchase in association with each other per work schedule management segment so that sales summing-up cannot be performed until purchase summing-up is completed.SOLUTION: A large-sized machine seller (e.g., machine tools, elevators, or special vehicles) provides follow-up services (maintenance) for a machine after the sale of the machine. The maintenance is performed by a delegated subcontractor in some cases. When an internal sales summing-up for the maintenance is performed, a work completion report from the subcontractor and an acceptance inspection by a customer may be necessitated. According to an embodiment of the present invention, by specifying work completion management as "necessary" when scheduled sales data is created, completion of a purchase in question is made a condition for sales summing-up.SELECTED DRAWING: Figure 1
Patent JP-2022099800-A (JP)
Title: Game machine
Inventor: TSUTSUI RYUSUKE
IPC: A63F7/02
Filed: 2020-12-23
Abstract: To provide a game machine capable of imparting novel game properties that can enhance interest of a player.SOLUTION: A game machine includes: determining means capable of determining whether or not a special game is executed; display means capable of variably displaying a symbol and stop displaying the symbol until a prescribed stop display time passes after variable display is over; and setting means capable of setting either a non-time-shortening game state that it is relatively hard for game balls to enter a prescribed entry area or a time-shortening game state that it is relatively easy for game balls to enter the prescribed entry area. The game machine can set the time-shortening game state on the basis that the symbol is variably displayed with prescribed frequency during the non-time-shortening game state, can cause the time-shortening game state and give notification that the time-shortening game state is set until a stop display time passes after the variable display of the symbol at a prescribed number of round is over.SELECTED DRAWING: Figure 142
Patent JP-2022100760-A (JP)
Title: Game program and game device
Inventor: SANTO YOSHIKI
IPC: A63F13/847
Filed: 2020-12-24
Abstract: To provide a game program and a game device capable of increasing a user's interest in a game.SOLUTION: A game program causes a game device 5 provided with a speaker 62 that reproduces voice data for a first user to function as a game progress unit 562 which advances a game by operating each of a first character that operates according to the operation of the first user and a second character that operates according to the operation of a second user, and causes a speaker 62 to function as a reproduction unit 563 for reproducing the voice data of the first character and the second character. The reproduction unit 563 has a first mode for reproducing the voice data of the second character by the operation of the second user and a second mode for reproducing the voice data of the second character without the operation of the second user.SELECTED DRAWING: Figure 2
Patent JP-2022101300-A (JP)
Title: Hinge cap
Inventor: YAMAMOTO MANABU
IPC: B65D47/08
Filed: 2020-12-24
Abstract: To provide a hinge cap capable of easily wiping dripped liquid, even when the liquid is dripped on a pour-out side of a cap body during pour-out of a content.SOLUTION: A hinge cap comprising a cap body B and a lid body D comprises an inner cylinder 7 and an outer peripheral wall part 8 whose cap body B is vertically disposed with a mouth 1 of a container A interposed therebetween, and a base wall part 6 continuously provided on the inner cylinder 7 and the outer peripheral wall part 8. The outer peripheral wall part 8 comprises a step recess 15 whose flat surface 15a lower than an upper surface on a hinge C side is formed in a predetermined arc range on a pour-out side; a back surface outer wall part 23 erected in an arc range other than the step recess 15 along an outer peripheral direction on the hinge C side; and a slit groove 18 whose bottom surface 20 is continuous with the flat surface 15a of the step recess 15, that is formed between the back surface outer wall part 23 and the base wall part 6. The lid body D comprises a top wall 30; a side peripheral wall 31 vertically disposed from a peripheral edge of the top wall 30; and a covering wall 39 for covering the step recess 15, that is vertically disposed from the pour-out side of the side peripheral wall 31.SELECTED DRAWING: Figure 1
Patent JP-2021073685-A (JP)
Title: Thermoelectric transducer, distribution type temperature sensor, and manufacturing method of thermoelectric transducer
Inventor: OKI KENJI
IPC: H01L35/14
Filed: 2020-12-25
Abstract: To provide a small and light-weight thermoelectric transducer, a distribution type temperature sensor, and a manufacturing method of the thermoelectric transducer.SOLUTION: A thermoelectric transducer 1a comprises: a first p-type semiconductor part 11 which includes FeSi2 and the p-type additive; a first n-type semiconductor part 12 which includes FeSi2 and the n-type additive and whose one surface is joined to the one surface of the first p-type semiconductor part; a first metal plate 15 whose one surface is joined to the other surface of the first p-type semiconductor part; a second metal plate 16 whose one surface is joined to the other surface of the first n-type semiconductor part; a second p-type semiconductor part 11a whose other surface is joined to the other surface of the second metal plate and which includes FeSi2 and the p-type additive; a second n-type semiconductor part 12a which includes FeSi2 and the n-type additive and whose one surface is joined to the one surface of the second p-type semiconductor part; and a third metal plate 17 whose one surface is joined to the other surface of the second n-type semiconductor part. The thermoelectric transducer comprises two or more pairs of the p-type semiconductor part and the n-type semiconductor part. Each metal plate includes Ag.SELECTED DRAWING: Figure 18
Patent JP-2022102607-A (JP)
Title: Nonwoven fabric for car floor material and car floor material
Inventor: ONISHI HIROSHI
IPC: D04H1/559
Filed: 2020-12-25
Abstract: To provide a nonwoven fabric for car floor material which is excellent in wear resistance, and can prevent exuding of a resin applied during molding, when producing, by imparting a resin during molding of the car floor material nonwoven fabric, a car floor material by molding a car floor nonwoven fabric and a resin by applying pressure and, and a car floor material.SOLUTION: A nonwoven fabric for a car floor material of the present invention is, due to having a thick fiber layer containing a fiber of 5.0 dtex or more, excellent in wear resistance and strength of a nonwoven fabric for car floor materials, furthermore, by a thin fiber layer adjacent to the thick fiber layer and containing a fiber of 1.5 dtex or more, when producing a car floor material by molding the nonwoven fabric for car floor materials and a resin by applying a resin during molding of the car floor material nonwoven fabric, exuding of the resin from an opposite surface of a surface to which the resin is imparted is difficult to occur.SELECTED DRAWING: None
Patent JP-2021504293-A (JP)
Title: インターフェロン感受性ウイルスの産生、増殖、拡散または腫瘍溶解性および免疫治療の効果を高めるための組成物およびその方法。
IPC: A61K47/14
Filed: 2018-11-23
Abstract: フマル酸およびマレイン酸含有化合物の提供であり、前記化合物を含む組成物および、特にがんおよび腫瘍細胞である細胞において、インターフェロン感受性ウイルスの産生、増殖、拡散または力価を高めるためにそのような化合物を用いるための方法を提供する。前記化合物および組成物を投与することによって、対象の腫瘍またはがん細胞を治療する方法も提供する。【選択図】なし
Patent JP-2020528666-A (JP)
Title: メモリデバイスを製造する方法、およびメモリデバイス
IPC: H01L43/08
Filed: 2018-07-18
Abstract: 【課題】メモリデバイスを製造する方法、およびメモリデバイスを提供する。【解決手段】メモリデバイスは、ウエハ上の半導体デバイスを含む。半導体デバイスは、ゲート構造、第１のソース／ドレイン領域、および第２のソース／ドレイン領域を含む。ゲート構造は、ウエハの第１の側にある。第１のソース／ドレイン領域もウエハの第１の側にあり、ゲート構造の第１の端部に接触する。第２のソース／ドレイン領域は、ウエハの第２の側にあり、第１の側に延在してゲート構造の第２の端部に接触する。メモリデバイスは、ウエハの第２の側のメモリ記憶素子をさらに含む。メモリ記憶素子は、第２のソース／ドレイン領域に接触する。【選択図】図８
Patent JP-2020528407-A (JP)
Title: 水溶性ヒドロゲル系歯科用組成物ならびにその調製および使用方法
IPC: A61K8/81
Filed: 2018-07-19
Abstract: 有効なフッ化物添加、ｉｎ ｓｉｔｕでの生体模倣再石灰化およびエナメルへの向上した接着のために有用な歯科用組成物、より詳細には水溶性歯科用バーニッシュ組成物が本明細書に記載されている。本歯科用組成物は、それ自体への凝集性および歯エナメルへの接着性を有するヒドロゲル形成性ポリマーを含む。ヒドロゲル形成性ポリマーは、水溶性ポリマーおよびこの水溶性ポリマーに化学的および／または物理的に結合された接着促進剤を含む。本実施形態は、ヒドロゲル形成性ポリマーを形成する方法およびそのような歯科用組成物を調製するためのヒドロゲル形成性ポリマーの使用も提供する。【選択図】図２３
Patent JP-2020530406-A (JP)
Title: トート及びサブトート運搬用のユニバーサルグリッパ
IPC: B25J15/00
Filed: 2018-08-08
Abstract: 例えば、受注処理センターでのトート（１００）及びサブトート（１０２）の運搬のためのユニバーサルグリッパ（１１０）が開示されている。ユニバーサルグリッパは、調節可能なタイン（１１２）と、異なる構成のトート（１００）及びサブトート（１０２）のスロット（１２０、１４０）内に係合するように位置決めされることが可能なピン（１３２）とを有する。【選択図】図８
Patent JP-2020531836-A (JP)
Title: 環境の空間プロファイルの推定
IPC: G01S17/931
Filed: 2018-08-24
Abstract: 本明細書で開示されるのは、環境の空間プロファイルの推定を、光検出及び測距（ＬｉＤＡＲ：ｌｉｇｈｔ ｄｅｔｅｃｔｉｏｎ ａｎｄ ｒａｎｇｉｎｇ）に基づく技術に基づいて、促進するためのシステム及び方法である。通信ニーズのための光エネルギーを再利用することにより、本開示は、自由空間光通信を促進すると同時に、光学手段による空間プロファイル推定を促進する。【選択図】図１
Patent JP-2020533984-A (JP)
Title: 電子読み出しを用いる多重化バイオアッセイデバイス
IPC: G01N21/78
Filed: 2018-07-27
Abstract: 本発明は、概して、アッセイされた生体試料の１つ以上の光学特性を変更する指示薬を使用することによる、バイオアッセイを実行するためのデバイス、システム、及び方法に関する。主題の方法は、デバイスの中に導入された生体試料に対して生化学反応を実施することによって反応生成物を生成することと、反応生成物を、試料中に存在することが疑われる分析物の存在、不在、または量を示すために生体試料の光学特性の検出可能な変化を生成できる指示薬と反応させることとを含む。
Patent JP-2020535637-A (JP)
Title: 有機エレクトロルミネッセンスデバイスと有機エレクトロルミネッセンス装置
IPC: H01L51/50
Filed: 2018-09-19
Abstract: 本願は表示技術分野に関し、有機エレクトロルミネッセンスデバイスと有機エレクトロルミネッセンス装置を開示し、該有機エレクトロルミネッセンスデバイスは、順に積層して設られた第１の電極層と、第１のキャリア機能層と、発光層と、及び第２の電極層と備え、第１のキャリア機能層と発光層との間にさらにＰドープ層が設けられることにより、第１のキャリア機能層と発光層界面のエネルギー準位曲げを変え、両者の界面処の正孔注入ポテンシャル障壁を低減し、効果的に該有機エレクトロルミネッセンスデバイスの点灯電圧を低減する。該有機エレクトロルミネッセンスデバイス際を具体的に使用するに、前記有機エレクトロルミネッセンスデバイスと隣接する有機エレクトロルミネッセンスデバイスとの間の点灯電圧差を小さくにし、さらに単独で該発光色の有機エレクトロルミネッセンスデバイスをオンにする時に、発生したキャリアは共通のキャリア機能層によって他の発光色の有機エレクトロルミネッセンスデバイスの中に移動されても、他の有機エレクトロルミネッセンスデバイスを点灯できず、色の偏りという問題を解決する。【選択図】図２
Patent JP-2020535697-A (JP)
Title: 低寄生キャパシタンス低雑音増幅器
IPC: H01L21/768
Filed: 2018-08-27
Abstract: 低雑音増幅器（ＬＮＡ）デバイスは、セミコンダクタオンインシュレータ（ＳＯＩ）層上の第１のトランジスタを含む。第１のトランジスタは、ソース領域、ドレイン領域、およびゲートを含む。ＬＮＡデバイスは、ゲートに結合された第１の面のゲートコンタクトも含む。ＬＮＡデバイスは、ソース領域に結合された第２の面のソースコンタクトをさらに含む。ＬＮＡデバイスは、ドレイン領域に結合された第２の面のドレインコンタクトも含む。
Patent JP-2020528363-A (JP)
Title: 研磨品とその形成方法
IPC: C09K3/14
Filed: 2018-06-18
Abstract: 本体を含み得る研磨品が提供される。本体は、結合成分及び結合成分内の研磨粒子を含み得る。結合成分は、Ｆｅ‐Ｃｏ‐Ｃｕ‐Ｎｉ‐Ｓｎ系結合材料と性能向上材料を含み得る。性能向上材料は、六方晶窒化ホウ素を含み得る。性能向上材料の含有量は、結合成分の総体積に対して少なくとも約６体積％であり、約１４体積％以下であり得る。
Patent JP-2020536175-A (JP)
Title: 改良された熱処理可能なチタン合金
IPC: C22F1/18
Filed: 2018-10-08
Abstract: 修正された準安定チタン合金は、炭素含有量以外、標準ベータＣチタン合金の組成範囲に対応する。修正合金は、バナジウム、クロム、モリブデン、ジルコニウム、アルミニウム、最大量の酸素、鉄、窒素、水素、イットリウム、他の元素（炭素およびチタン以外）、およびチタンのバランス（炭素以外）を有する。修正合金は、０．０５重量％を十分に超える安定な総炭素レベルで存在する炭素を有し、０．０５重量％以下の特定の炭素レベルを有する標準ベータＣ合金に対して、ＵＴＳ、ＤＳＳおよび螺刻領域における疲労強度の機械的特性の改善を達成し、疲労強度のレベルで有害な効果を有するカーバイドの形成を妨げるように、最大炭素含有量が制御されている。