baber/WOPTO huggingface dataset:
Patent JP-2017089983-A (JP)
Title: Refrigerant leakage detection device in refrigeration cycle
Inventor: NAMBA SHUNSUKE
IPC: F25B49/02
Filed: 2015-11-11
Abstract: PROBLEM TO BE SOLVED: To provide an epoch-making refrigerant leakage detection device in a refrigeration cycle, excellent in practical use, capable of being applied regardless of presence or absence of a liquid reception tank, inexpensively and easily post-installed with a simple constitution, and detecting presence or absence of leakage without stopping an operation of facilities, and free from degradation of facility operation rate due to leakage detection.SOLUTION: A refrigerant leakage detection device in a refrigeration cycle is composed of an ultrasonic transmission portion 1 transmitting an ultrasonic wave of a prescribed frequency, an ultrasonic reception portion 2 receiving the ultrasonic wave transmitted by the ultrasonic transmission portion 1, an ultrasonic reception determining portion 3 for determining whether the ultrasonic wave transmitted by the ultrasonic transmission portion 1 is received by the ultrasonic reception portion 2 or not, and a leakage notification portion 4 for notifying occurrence of leakage to the external when the ultrasonic reception determining portion 3 determines that the ultrasonic wave transmitted by the ultrasonic transmission portion 1 is not received by the ultrasonic reception portion 2.SELECTED DRAWING: Figure 1
Patent JP-2017089549-A (JP)
Title: Ignition timing control device of internal combustion engine
Inventor: TAKEI TAKUYA
IPC: F02D45/00
Filed: 2015-11-12
Abstract: PROBLEM TO BE SOLVED: To provide an ignition timing control device of an internal combustion engine capable of suppressing occurrence of starter lock due to excessive advance of an ignition timing.SOLUTION: An ignition timing is controlled when a delay time Tig has passed from a reference timing t(stan 1) as a timing when a reference angle θref at an advance-angle side with respect to a top dead center is detected, in a case when alcohol concentration is high. When occurrence of accidental fire is determined, the ignition timing is controlled to a timing of detection of a retard angle-side angle aop.SELECTED DRAWING: Figure 3
Patent JP-2016101581-A (JP)
Title: Multi-area catalyst construct
Inventor: SHAU-LIN F CHEN
IPC: B01J20/06
Filed: 2015-11-13
Abstract: PROBLEM TO BE SOLVED: To provide an exhaust gas processing base material provided in an exhaust gas system of an internal combusTion engine, a system and a method of including this exhaust gas processing base material.SOLUTION: A cataLyst base material is an exhaust gas processing structure having a flowing characteristic being many in an exhaust gas flow of flowing in a central area 2 by comparing with an outside peripheral area 4 when constituting the outside peripheral area 4. The outside peripheral area 4 is the exhaust gas processing structure having a trapping substance or an adsorption substance on a surface of its flow passage, having the longer axial length than an inside area 2 or being narrower in an opening part 14 of the flow passage than the inside area 2. A protective film of including the trapping substance such as a hydrocarbon trap is coated on an inlet end 12. In the other, a catalyst of including an oxygen storage component is coated on an outlet end.SELECTED DRAWING: Figure 1
Patent JP-2017098029-A (JP)
Title: Electrode plate manufacturing method
Inventor: NAKANO TAKAHIKO
IPC: H01M4/04
Filed: 2015-11-20
Abstract: PROBLEM TO BE SOLVED: To provide an electrode plate manufacturing method by which a manufacturing facility can be made small.SOLUTION: An electrode plate manufacturing method according to the present invention is one for manufacturing an electrode plate having a current collector foil and an active substance layer thereon by a film formation step and a dry step. In the film formation step, a wet granulated material of granulated particles including at least an active substance, a binding material, and a liquid component is forced to pass through a gap between a pair of rollers into a sheet-like wet active substance layer, and the wet active substance layer is stuck to a length of current collector foil being conveyed to manufacture a film-shaped sheet. In the dry step, the film-shaped sheet is conveyed into a drying oven, thereby drying the wet active substance layer into the active substance layer. Further, in the film formation step, a material having a solid content concentration within a range of 70-85% is used as the wet granulated material to make the thickness of the wet active substance layer in the film-shaped sheet 300 μm or less. In addition, in a path for conveying the film-shaped sheet after the film formation step, a tension applied to the film-shaped sheet by conveying the sheet is 60 N or less.SELECTED DRAWING: Figure 2
Patent JP-2017098845-A (JP)
Title: Image processing apparatus, image processing method, and program
Inventor: TATSUMI EISAKU
IPC: G06T5/00
Filed: 2015-11-26
Abstract: PROBLEM TO BE SOLVED: To suppress degradation of image quality when an image assuming a wide dynamic range is displayed with a narrow dynamic range.SOLUTION: Gradation values of the luminance signal (Y) are separately converted by a bright portion gamma conversion part 33, an intermediate portion gamma conversion part 34, and a dark portion gamma conversion part 35 so as to enlarge a bright tone portion, an intermediate tone portion, and a dark tone portion of the luminance signal (Y). Converted tone values are multiplied by usage ratios of the bright tone portion, the intermediate tone portion, and the dark tone portion and added.SELECTED DRAWING: Figure 3
Patent JP-2016135755-A (JP)
Title: Film coating formulation containing prodrug having medoxomil group
Inventor: GOCHOMORI KAZUHIRO
IPC: A61K47/32
Filed: 2015-11-27
Abstract: PROBLEM TO BE SOLVED: To create a film coating formulation in which unpleasant odor derived from active pharmaceutical ingredient is reduced, the film coating formulation containing a prodrug having a medoxomil group.SOLUTION: Preferably, a film coated tablet contains a prodrug having a medoxomil group in an uncoated tablet and contains a naturally-occurring organic base or basic inorganic-acid salt in a film coating layer. Preferably, the organic base in the film coating layer is L-arginine or meglumine, and preferably, a basic inorganic-acid salt is selected from calcium silicate, magnesium silicate, magnesium carbonate, and magnesium aluminosilicate.SELECTED DRAWING: None
Patent JP-2017093974-A (JP)
Title: Surgical instrument for artificial knee joint replacement surgery
Inventor: KOMIYA TAKAYUKI
IPC: A61F2/46
Filed: 2015-11-27
Abstract: PROBLEM TO BE SOLVED: To provide a surgical instrument for artificial knee joint replacement surgery that is superior in operability.SOLUTION: A surgical instrument for artificial knee joint replacement surgery 1 is configured by including: an index part 2a serving as a reference when fixing a resection guide 80; a body part 4 provided or fixed with the index part 2a; a swinging part 10 having an abutment part coming into abutment with patient's condyles 101a, 101b and constituted so as to swing to the body part 4, and in which the position and angle to the condyles 101a, 101b are determined by the abutment part coming into abutment with the condyles 101a, 101b; and a switching mechanism 20 having an operated part 30 operated by a user, and switching between a fixed state where the swinging part 10 is fixed to the body part 4 by the operated part 30 being operated only along a predetermined direction and a release state where the swinging part 10 becomes a swingable state to the body part 4.SELECTED DRAWING: Figure 1
Patent JP-2017101267-A (JP)
Title: Ferritic stainless steel
Inventor: ISHII TOMOHIRO
IPC: C22C38/00
Filed: 2015-11-30
Abstract: PROBLEM TO BE SOLVED: To provide a ferritic stainless steel hardly generating crack in the vicinity of a weld part by expansion, shrinkage and deformation by heat effect of weldment when conducting weldment after deep-draw processing and excellent in corrosion resistance in the vicinity of the weld part.SOLUTION: There is provided a ferritic stainless steel having a component composition which contains, by mass%, C: 0.001 to 0.020%, Si: 0.01 to 0.30%, Mn: 0.01 to 0.50%, P: 0.04% or less, S: 0.01% or less, Cr: 18.0 to 22.0%, Ni: 0.01 to 0.40%, Mo: 0.30 to 3.0%, Al: 0.01 to 0.15%, Ti: 0.01 to 0.50%, Nb: 0.01 to 0.50%, V: 0.01 to 0.50%, Co: 0.01 to 6.00%, B: 0.0003 to 0.0050%, N: 0.001 to 0.020% with satisfying 0.30%≤Ti+Nb+V≤0.60% and the balance Fe with inevitable impurities.SELECTED DRAWING: None
Patent JP-2017099708-A (JP)
Title: Game machine
Inventor: OGURA TOSHIO
IPC: A63F7/02
Filed: 2015-12-02
Abstract: PROBLEM TO BE SOLVED: To provide a game machine that properly notifies a player.SOLUTION: Execution modes of prize promoting notification are different between prize promoting notification (first prize promoting notification and second prize promoting notification) in round 1 (a small winning game state) and prize promoting notification (third prize promoting notification) in rounds 2-8 (big winning game states of V-prize big winning). That is, among periods in which a big-prize pocket is in an open state, a first period and a second period have different execution modes of prize promoting notification. Accordingly, a player is properly notified depending on the period.SELECTED DRAWING: Figure 22
Patent JP-2016029334-A (JP)
Title: Cooler
Inventor: IAN TANSLEY
IPC: F25D11/00
Filed: 2015-12-03
Abstract: PROBLEM TO BE SOLVED: To provide a refrigeration apparatus that can operate on solar power, yet which does not rely on batteries, and which minimizes the risk to vaccine or other items contained within it.SOLUTION: A payload container 20 formed within a casing 10 is located within a payload container 22 that has one open face, the other faces of the payload container 22 are located within the casing 10, and the payload container 22 is submerged under the water that is contained in the casing 10. The submerged faces of the payload container 22 have no insulation so that the submerged faces are in thermal communication with the surrounding water in a cooling region of a reservoir.SELECTED DRAWING: Figure 1
Patent JP-2017101307-A (JP)
Title: Copper-containing particle, conductor forming composition, method for producing conductor, conductor and electronic component
Inventor: OGAWA SADAHIRO
IPC: H01B5/00
Filed: 2015-12-04
Abstract: PROBLEM TO BE SOLVED: To provide a copper-containing particle having excellent fusibility at a low temperature, a conductor forming composition containing the copper-containing particle, a method for producing a conductor which can be performed at a low temperature, a conductor which can be produced at a low temperature, and an electronic component containing the conductor.SOLUTION: A copper-containing particle contains a core particle containing copper, and organic matter that coats at least part of the core particle surface, where a DTA peak top temperature in a weight reduction curve when heating the copper-containing particle at a rate of temperature rise of 10°C/min is 254°C or less.SELECTED DRAWING: None
Patent JP-2017111490-A (JP)
Title: Ticket vending system
Inventor: NISHIO SHOICHIRO
IPC: G07B5/00
Filed: 2015-12-14
Abstract: PROBLEM TO BE SOLVED: To provide a ticket vending system which is capable of making a ticket reissued by alternative means other than a ticket vending machine when an issuance error of the ticket has occurred in the ticket vending machine.SOLUTION: When a ticket issuance error occurs in which a ticket is not issued normally by a ticket vending machine even though a purchase procedure has been performed, the ticket vending machine notifies a management device of the ticket issuance error. When the management device is notified of the ticket issuance error by the ticket vending machine, it generates reissuance information for making alternative means other than the ticket vending machine (for example a web page or another ticket vending machine) reissue the ticket that has not been issued normally from the ticket vending machine and transmits it to the ticket vending machine. When the ticket vending machine receives the reissuance information from the management device, it outputs the reissuance information that has been received.SELECTED DRAWING: Figure 6
Patent JP-2017111552-A (JP)
Title: Automatic travel device and program
Inventor: YAMAMOTO MASASHI
IPC: G05D1/02
Filed: 2015-12-15
Abstract: PROBLEM TO BE SOLVED: To provide an automatic travel device and a program capable of making a posture of a vehicle body which stopped, a prescribed target posture with respect to a travel guide line.SOLUTION: An automatic travel device comprises: a vehicle body; drive means for moving the vehicle body on a travel surface; imaging means for imaging a travel guide line which is provided in advance on the travel surface; and control means for controlling the drive means so as to make the vehicle travel along the travel guide line based on an imaged image of the travel guide line which is imaged by the imaging means. When the automatic travel vehicle is stopped, and when it is determined that a posture of the vehicle body to the travel guide line is not a preset target posture, based on the imaged image of the travel guide line imaged by the imaging means, the control means controls the drive means so that the posture of the vehicle body becomes the target posture.SELECTED DRAWING: Figure 14
Patent JP-2017112196-A (JP)
Title: Circuit structure, and electric connection box
Inventor: HARAGUCHI AKIRA
IPC: B60R16/02
Filed: 2015-12-16
Abstract: PROBLEM TO BE SOLVED: To provide a circuit structure excellent in productivity, and to provide an electric connection box including this circuit structure.SOLUTION: A circuit structure where a circuit board having a control circuit for controlling electrification of a power circuit is integrated on a tabular bus bar constituting the power circuit includes a bus bar provided with a first through hole, a circuit board having circuit pattern formed on the opposite sides, and provided with a second through hole communicating with the first through hole, an insulation sheet arranged on the other side of the circuit board, and interposed between the bus bar and the circuit board, and a conductive rivet inserted into the first and second through holes, and fixing the circuit board onto the bus bar. The rivet has a trunk inserted into the first and second through holes, and a head projecting from the circuit board.SELECTED DRAWING: Figure 2
Patent JP-2017116613-A (JP)
Title: Electronic apparatus
Inventor: OSADA YOICHI
IPC: H05K7/14
Filed: 2015-12-22
Abstract: PROBLEM TO BE SOLVED: To provide an electronic apparatus with which it is possible to optimize an extra length of a flexible printed board attached to a rotary hinge mechanism by a simple method without requiring costs.SOLUTION: The electronic apparatus comprises an apparatus body (1), a display unit (20) rotatably provided on the rear side of the apparatus body in an opening/closing direction via a hinge mechanism (30), and a flexible printed board (65) for electrically connecting the apparatus body and the display unit. The hinge mechanism (30) is provided with a protective member (75) for protecting the flexible printed board (65) and having a flexible part (76c) formed therein. The extra length of the flexible printed board (65) changes in accordance with the rotation of the hinge mechanism (30), and when the flexible part (76c) is subjected to a greater-than-prescribed load due to a reduction in the extra length, the flexible part (76c) is bent.SELECTED DRAWING: Figure 7
Patent JP-2017118014-A (JP)
Title: Laminate, semiconductor element and electrical machine
Inventor: TSURUMA YUKI
IPC: H01L21/52
Filed: 2015-12-25
Abstract: PROBLEM TO BE SOLVED: To provide a laminate that can be used in a semiconductor element having a small electric junction resistance value of ohmic junction, and a high strength for physical fixing, and to provide a semiconductor element.SOLUTION: A laminate includes a conductive substrate 54 having a first surface 541 and a second surface 542 facing each other, and a contact resistance reduction layer 61, a solder erosion prevention layer 62, and a bond strength improvement and/or a contact resistance reduction layer 63, in this order, on the first surface 541 side of the conductive substrate. The bond strength improvement and/or a contact resistance reduction layer 63 is fixed to a frame by means of a solder 70, and has at least an oxide semiconductor layer 10 and a Schottky electrode layer 20 on the second surface 542 of the conductive substrate.SELECTED DRAWING: Figure 1
Patent JP-2017118421-A (JP)
Title: Measuring apparatus, measuring method, and program
Inventor: YAMAZAKI TADASHI
IPC: H04B17/345
Filed: 2015-12-25
Abstract: PROBLEM TO BE SOLVED: To specify a source of a radio wave of a specific frequency.SOLUTION: A measuring apparatus mounted onto flying objects, includes: one or a plurality of antenna; a measurement part that measures a reception intensity of a radio wave of a specific frequency received by one or the plurality of antenna; a measurement position that measures the position of the measuring apparatus; a storing part that stores the reception intensity of the specific frequency in association with position information of the measuring apparatus; and a control part that, when the reception intensity of the radio wave of the specific frequency measured by the measurement part is equal to a predetermined threshold value or more, controls so as to store the reception intensity of radio wave of the specific frequency at the time of being set to the threshold value or more in accordance with the position information of the measuring apparatus measured by the measurement part.SELECTED DRAWING: Figure 4
Patent JP-2017115808-A (JP)
Title: Oil pump device
Inventor: TAKAGI HIDEJI
IPC: F04C2/344
Filed: 2015-12-25
Abstract: PROBLEM TO BE SOLVED: To provide an oil pump device capable of downsizing while including a structure in which a surplus working fluid returns to a suction side.SOLUTION: An oil pump device 1 includes: a housing 10 having a suction port 112 and a discharge port 113; a rotor 4 and a plurality of vanes 5 for transferring a working fluid from the suction port 112 to the discharge port 113 by rotation; and a swing plate 7 having a flow passage 71 capable of circulating the working fluid in a high-pressure side region 10b including the discharge port 113 to a low-pressure side region 10a including the suction port 112. The swing plate 7 swings in a predetermined angular range with respect to the housing 10 by drag torque generating according to the rotation of the rotor 4, and switches between a communication state in which the high-pressure side region 10b and the low-pressure side region 10a communicate via the flow passage 71, and a cut-off state in which the communication between the high-pressure side region 10b and the low-pressure side region 10a is cut off.SELECTED DRAWING: Figure 6
Patent JP-2017116234-A (JP)
Title: Electric refrigerator
Inventor: NISHIOKA YAKICHIRO
IPC: F25D23/02
Filed: 2015-12-25
Abstract: PROBLEM TO BE SOLVED: To provide an electric refrigerator capable of suppressing sagging of a door part due to its deadweight, and reducing a risk of becoming a state of not being fully closed.SOLUTION: An electric refrigerator 1 includes: a hollow box body 2 that is configured to house objects to be stored, and a part of which is opened; and a door part 4 attached so as to close an opening part of the box body 2, and capable of being opened/closed. Below the opening part of the box body 2, provided is a support part 8 positioned below the door part 4 in a closed state, and supporting the door 4. The support pat 8 contains a freely rotatable rotor 8a contacting with a lower surface of the door 4 in the closed state.SELECTED DRAWING: Figure 3
Patent JP-2017113494-A (JP)
Title: Cardiorespiratory sensor, cardiorespiratory/electrocardiographic sensor, electrocardiographic sensor, and manufacturing method thereof
Inventor: SATO SHINICHI
IPC: A61B5/02
Filed: 2015-12-27
Abstract: PROBLEM TO BE SOLVED: To provide a cardiorespiratory sensor, a cardiorespiratory/electrocardiographic sensor, and an electrocardiographic sensor with no leads (cables) arranged on a sensor board and capable of being connected to wide range of electronic terminals.SOLUTION: Sensors according to the present invention comprises a sensor board 11 shaped from a print circuit board, a printed pattern 121 formed at the center on one side of the sensor board 11 for mounting a piezo sensor, a printed pattern 131 formed on one side of the sensor board 11 for mounting electronic parts, a printed pattern 141 formed at an end on one side of the sensor board 11 for a cable connector for connecting external devices, a piezo sensor 122 mounted to the printed pattern 121, electronic parts 132 mounted to the printed pattern 131, and cables 142 mounted to the printed pattern 141.SELECTED DRAWING: Figure 1
Patent JP-2015516508-A (JP)
Title: 原料又はコンポーネント部品のアモルファス合金ロール成形
IPC: C22C45/10
Filed: 2012-03-23
Abstract: 本明細書の実施形態は、金属合金を含むバルク凝固アモルファス合金のロール成形物を製造する方法、及びその物品に関する。ロール成形には、バルク凝固アモルファス合金の一部分を、金属合金のガラス転移温度（Ｔｇ）よりも高い温度で形成する工程が含まれる。ロール成形は、ロール成形の間の一部分の時間−温度特性が、金属合金の時間−温度−変態（ＴＴＴ）図における金属合金の結晶質領域を囲む領域を横切らないようになされる。
Patent JP-2015518676-A (JP)
Title: 帯域効率のよいスケジューラのための装置及び方法
IPC: H04W88/06
Filed: 2013-03-26
Abstract: 時分割リソースをスケジューリングするための方法及び装置。一実施形態において、重複する周波数範囲を有するＢｌｕｅｔｏｏｔｈ及びＩＥＥＥ ８０２．１１インタフェースは、Ｂｌｕｅｔｏｏｔｈ機器がアクティブなときの予測に基づくヒューマンインタラクション機器のためのタイムスロットのスケジューリングを行うインテリジェントなスケジューラエンティティ又はプロセスによって管理される。非アクティブなＢｌｕｅｔｏｏｔｈ機器のために確保されたタイムスロットの数を削減することにより、スケジューラは、Ｂｌｕｅｔｏｏｔｈ機器に対して認識可能な顕著な影響をもたらすことなく、ＩＥＥＥ ８０２．１１システムのためのタイムスロットを解放することができる。解放されたタイムスロットは、追加の帯域幅を提供することによりＩＥＥＥ ８０２．１１の性能を向上させることができ（これはユーザが認知可能である）、これによってユーザの満足度とエクスペリエンスが改善される。
Patent JP-2015514730-A (JP)
Title: （エチン−１，２−ジイル）ビス（イソベンゾフラン−１，３−ジオン）を生成する方法
IPC: C07D307/89
Filed: 2013-03-08
Abstract: （エチン−１，２−ジイル）ビス（イソベンゾフラン−１，３−ジオン）を得る方法が開示される。開示される方法において、クロロ−、ブロモ−またはヨードイソベンゾフラン−１，３−ジオンは、溶解した均質なパラジウム触媒、任意に銅塩、塩基および任意に前記塩基と異なる溶媒の存在下でエチンと反応する。続いて、得られた（エチン−１，２−ジイル）ビス（イソベンゾフラン−１，３−ジオン）は、カルボン酸、極性非プロトン性溶媒またはクロロホルムなどの洗浄剤で洗浄され得る。【選択図】なし
Patent JP-2015520596-A (JP)
Title: 電気機械パワー変換のための複合ステータ
IPC: H02K15/12
Filed: 2013-05-08
Abstract: 回転電気機械装置は、複数のワイヤから成る円筒状鉄なしステータコイル、ステータコイルとともに配置される磁気ロータであって、ロータと関連した磁場流動は、電磁誘導によってステータコイルのワイヤと相互作用する、磁気ロータ、ワイヤを支持するように配置される円筒状ボビン、ワイヤで包まれた円筒状ボビンの少なくとも外周上に編まれるストランド、および、硬化するときに複合ステータコイルを提供するために、ワイヤ、ボビンおよびストランドをポッティングする硬化可能なポッティング材料、を含む。【選択図】図２６
Patent JP-2015517297-A (JP)
Title: ケーブル型二次電池用の無線充電装置
IPC: H02J17/00
Filed: 2014-03-25
Abstract: 本発明は、ケーブル型二次電池用の無線充電装置を開示する。本発明によるケーブル型二次電池用の無線充電装置は、ケーブル型二次電池を装着するための、内部に形成された空間を有するソケット；前記ソケットの内部に装着されたケーブル型二次電池の外部集電体と電気的に連結された第１端子；前記ソケットの内部に装着されたケーブル型二次電池の内部集電体と電気的に連結された第２端子；及び一端は前記第１端子と連結され、他端は前記第２端子と連結され、前記ソケットの外周面に沿って巻き取られている無線充電用２次コイル；を含む。本発明によれば、ケーブル型二次電池に無線電力受信のための２次コイルがない場合にも、無線電力送受信方式を通じて充電することができる。【選択図】 図３
Patent JP-2015523842-A (JP)
Title: 無線充電用のシステム及び方法
IPC: H02J17/00
Filed: 2013-06-13
Abstract: 【課題】既存又は標準の壁電気コンセントハウジングに，無線充電装置及びシステムを統合するシステム及び方法を提供すること。【解決手段】本発明のシステムは，充電される電気装置と関係する受電器に電気信号を無線送信するために，電力変換器と共に動作する制御器と結合されたアンテナを含む送電器を利用する。利用者にシステムの無線充電装置の充電能力又は状態を通知するために，インジケータが照明又は別の方法で通知する。無線充電装置又はシステムはまた，有線電気接続を提供する標準電気ソケットを含んでもよい。壁電気コンセントハウジングに結合された標準壁プレートは，送電器及び電気ソケットを収容する。【選択図】図１
Patent JP-2015529037-A (JP)
Title: アップリンクサウンディング参照信号の転送電力制御
IPC: H04W52/32
Filed: 2013-06-24
Abstract: 本発明は、サウンディング参照信号転送電力制御方法に関するものである。
Patent JP-2015522637-A (JP)
Title: 断熱的ニトロ化によるニトロベンゼンの製造方法
IPC: C07C201/08
Filed: 2013-07-23
Abstract: 本発明は、化学量論的に過剰のベンゼンを使用し、硫酸と硝酸の混合物でベンゼンをニトロ化することにより、ニトロベンゼンを製造するための連続的な断熱方法であって、循環している硫酸中の有機化合物の含有量が、製造プラントの少なくとも始動期間の間に、循環している硫酸の総質量に対して1.0重量％未満に常に維持される、方法を提供する。これは、好ましくは、製造サイクルの終了後または開始前に、循環している硫酸が高温で循環されるので、硫酸中に含まれる、好ましくはニトロベンゼンおよび痕跡量のベンゼン、ジニトロベンゼンおよびニトロフェノールを含んでなる有機化合物が蒸発装置中で分離され、硫酸を濃縮する方法により、達成される。