baber/WOPTO huggingface dataset:
Patent JP-H11316042-A (JP)
Title: Air conditioner
Inventor: KATO KOJI
IPC: F24F11/02
Filed: 1998-12-28
Abstract: PROBLEM TO BE SOLVED: To reduce power loss of inverter by increasing DC output voltage at the time of heating when the outdoor temperature is low thereby having a refrigerant condensation quantity for keeping the operating current lower than a limit level even when a compressor motor is operated at high r.p.m. SOLUTION: A switching element 6 is turned on/off according to the waveform of a voltage Es produced by full-wave rectifying a sine wave. When the detection output from an input current detector 23 exceeds a specified level, a microcomputer 15 delivers a trigger signal VT for driving the switching element 6 to start switching operation thereof. When the motor load increases and the duty factor of the switching element in an inverter 13 becomes 100%, the switching element 6 is turned on/off such that the DC voltage Ed of a capacitor has an arbitrary level. Consequently, the motor can be operated continuously at a high r.p.m. required for heavy motor load due to heavy heating load caused by low outdoor temperature, for example.
Patent JP-2000181345-A (JP)
Title: World mesh code generating method and world mesh code
Inventor: NISHIOKA TORU
IPC: G09B29/00
Filed: 1998-12-17
Abstract: PROBLEM TO BE SOLVED: To provide a world mesh code which permits speedy and accurate expression of positional information by displaying only in figures in a global scale or within a specific region, and has compatibility with existing coordinates, etc., being easy to understand for anybody, easy to computerize and digitize, and excellent in practical and general use. SOLUTION: The method of generating a world mesh code permits accurate, simple, and comprehensible expression of positional information by dividing the world into 18 pieces of blocks, dividing each block into 100 meshes each in the east/west and south/north directions, further finely dividing each mesh to be provided with coordinates or subdivide it into small meshes and thereby sequentially indicating the numbers given to each sub-mesh for the global scale, and indicating them by omitting the sub-mesh numbers or also the mesh numbers for a usual narrow region.
Patent JP-2001167856-A (JP)
Title: Straight fluorescence lamp having no pin terminal at ends and socket of lighting apparatus for receiving the same
Inventor: URYU HIDEAKI
IPC: H01J5/50
Filed: 1999-12-13
Abstract: PROBLEM TO BE SOLVED: To provide a straight fluorescence lamp having no pin terminals and a socket of lighting apparatus that enable to simply and rapidly carry out installation work of fluorescence lamps and decorating board to reduce fatigue of the worker and to avoid danger of fall of the worker from a working stand. SOLUTION: Two pin terminals provided on both ends of fluorescence lamp are abolished, and that portions are changed to a hemispherical, or conical or cylindrical shape of convex portion. One of the changed portions from terminals is disposed at the center of a convex head, the other is disposed apart from the center to form a ring shape. The socket has a surface contacting with the fluorescence lamp that has concave shape to coincide with the convex shape of ends of the fluorescence lamp. One of two contacts required for the socket is disposed at the center of a concave head, the other is disposed apart from the center to form a ring shape.
Patent JP-2001170150-A (JP)
Title: Method for clarification using adsorbent prepared by electromagnetic wave treatment of zeolite
Inventor: TAKEDA KOSUI
IPC: B01J20/18
Filed: 1999-12-15
Abstract: PROBLEM TO BE SOLVED: To provide a method for clarification wherein odor ingredients, endocrine disrupters, etc., in acidic/alkaline/neutral gas are adsorbed and eliminated by using an adsorbent prepared by treating a zeolite with an electromagnetic wave. SOLUTION: A method for clarification wherein odor ingredients, endocrine disrupters in acidic/alkaline/neutral gas are adsorbed and eliminated by using an adsorbent prepared by treating a zeolite with an electromagnetic wave is provided.
Patent JP-2001170237-A (JP)
Title: Weight changer and protector for bat
Inventor: NAKADAI SHIGEKAZU
IPC: A63B60/02
Filed: 1999-12-20
Abstract: PROBLEM TO BE SOLVED: To provide a weight changer for a bat which enables a player to hit a ball with an actual batting practice and the prevention of the deterioration and failure of the bat, such as the fatigue of the metal and the wood by using the bat is assisted and the silencing effect is obtained. SOLUTION: A soft rubber or foamed rubber layer (2) which has a bore slightly smaller than the maximum diameter of the upper part of the bat and is covered with chemical fibers on its front and rear surfaces is mounted to the bat and further, a rubber sheet (3) is mounted near to the part of the surface of the soft rubber or foamed rubber layer (2) covered with the chemical fibers on the front and rear surfaces where the distance of the hit ball is maximum, by which the changing of the weight of the bat is made possible. The soft rubber or foamed rubber layer (2) with the cylindrical rubber sheet (3) covered with the chemical fibers on the front and rear surfaces assists the prevention of deterioration of the bat and a silencing effect may be obtained by the soft rubber or foamed rubber layer (2) covered with the chemical fibers on the front and rear surfaces.
Patent JP-2001180383-A (JP)
Title: Cantilever interior board housing rack
Inventor: YOSHISUE SHIGEO
IPC: B60R5/04
Filed: 1999-12-23
Abstract: PROBLEM TO BE SOLVED: To provide a board rack that can store several boards such as surf boards in a one-box car and provide a large rest space. SOLUTION: Two rack rails having a groove are mounted to a wall in a car, plates are inserted into the grooves in the rack rails and fastened with a board rack body to fix the board rack to a required position. In this structure, a clearance between boards can be minimized. A contractile and reversible rail stopper is provided for the board rack, the board is fixed in a state in which the rail of the board is grabbed during storing the board not to require belt stopper, and the board can be transeversely taken out by extending and reversing the rail stopper for releasing the storing. Since the board can be transeversely handled, a rocker (camber) and a fin of the board can be stored in a piled state and in a small space.
Patent JP-2000199050-A (JP)
Title: Film forming material feeder in vacuum vapor deposition device
Inventor: OUCHI YUJI
IPC: C23C14/24
Filed: 1998-12-28
Abstract: PROBLEM TO BE SOLVED: To provide a film forming material feeder in a vacuum vapor deposition device which is capable of shortening the preparation time for the degassing to be achieved during the film forming work, and supplying a film forming material to a film-forming chamber without changing the atmosphere in the film-forming chamber. SOLUTION: A vacuum vapor deposition device which sublimes a film-forming material 13 stored on a ring hearth 2, and is provided with a film-forming chamber 1 to form a protective film on a substrate 6, is provided with a first material feeding means 8 to feed the film-forming material on the ring hearth, and a second material feeding means 11 to feed a film-forming material to the first material feeding means. The first material feeding means is provided in the film-forming chamber, and the second material feeding means is provided in a film-forming material feed chamber 10 separate from the film-forming chamber.
Patent JP-H05341547-A (JP)
Title: Method for regenerating amorphous silicon image forming member
Inventor: DAMOODAA EMU PAI
IPC: G03G5/00
Filed: 1990-12-14
Abstract: PURPOSE: To provide a method for regenerating an amorphous silicon/image forming member. CONSTITUTION: (1) The amorphous photoconductive image forming member having a protective overcoating after use and recovery from an electrophotographic image forming derive is used; (2) this member is brought into contact with a fluorine-contg. compsn. for the effective time to remove the protective layer; (3) the surface of the resulted image forming member is washed and dried; and (4) the protective layer is thereafter adhered thereon.
Patent JP-H04216474-A (JP)
Title: Method for testing lead switch
Inventor: KOBAYASHI YOSHIO
IPC: G01R31/00
Filed: 1990-12-17
Abstract: PURPOSE:To accurately detect a sample really inferior to contact properties by allowing an exciting current based on a working value and an open value to correspond at every sample. CONSTITUTION:At first, a pulse-like coil current is supplied to a contact driving electromagnetic coil 1 from a coil exciting circuit 2 through a control circuit 7 to remove the offset of the lead switch 8 connected to a switch operation detection circuit 3. Next, the exciting current to the electromagnetic coil 1 is gardually increased and the exciting current obtained when the switch 8 transfers to a closed state is measured as a working value to be temporarily stored. Subsequently, the exciting current of the electromagnetic coil 1 is gradually reduced and the holding current related to the open value of the switch 8 is temporarily stored. The stored exciting and holding currents are respectively subjected to addition processing as surplus exciting currents to be outputted to the circuit 2. Contact resistance is measured at every switch 8 by the inherent operation magnetic field based on the exciting current subjected to addition processing and a contact resistance value is displayed by a contact resistance display circuit 6.
Patent JP-H04221857-A (JP)
Title: Nonvolatile memory
Inventor: SUGATSUKI NAOKI
IPC: H01L27/115
Filed: 1990-12-21
Abstract: PURPOSE:To provide a nonvolatile memory which can lower the power supply voltage for information read and write operation by improving the carrier injection and release efficiency for the floating gate. CONSTITUTION:In a nonvolatile memory having a floating gate 12 and a control gate 13, at least one recessed or projected area having the compressed end face in the vertical direction for a substrate 1 is formed in the carrier injection and release areas. Thereby, the electrical field is concentrated to such recessed or projected area and the power supply voltage can be lowered.
Patent JP-H0620558-A (JP)
Title: Keyboard
Inventor: NEGISHI FUMIO
IPC: H01H21/00
Filed: 1990-12-07
Abstract: PURPOSE:To reduce the number of part items and that of processes for assembly of a keyboard so as to enhance the productivity of the keyboard by disposing an elastic top panel on and opposite to a base panel, the top panel having push control portions provided as notches formed in the opposite positions to push switches. CONSTITUTION:When a desired control key 10 on a keyboard 7 is pressed from a top panel 8, it sinks inside a notch 9 due to its elasticity. Therefore, the control key 10 switches on and off a predetermined push switch 3 as does a keyboard 1, controlling such equipment as an electronic balance. In the keyboard 7, the control key 10 is provided by notching 9 of the control key 10 and so the need for mounting a cubic control key 2 to each of a number of push switches 3 mounted crosswise and lengthwise on a base panel 4 is eliminated, resulting in reduction in the number of part items and that of processes for assembly. The keyboard 7 may be formed integrally with the housing of the electronic balance, etc., or may be formed as independent equipment to be connected to various electric machines.
Patent JP-H04224396-A (JP)
Title: Repair tool for pipe
Inventor: SUEZAWA SHINYA
IPC: F16L55/18
Filed: 1990-12-27
Abstract: PURPOSE:To provide a pipe repair tool which can repair a pipe loss portion simply in a short time and at the same time can lower the cost of parts required for the repair. CONSTITUTION:For the purpose of repairing a loss portion 3 at the surface of a pipe 2 whose outer peripheral surface is at least formed of resin, at a resin sheet 4 of flexibility and thermal plasticity, a heating member 5 consisting of a nichrome wire or the like is provided along the resin sheet 4 surface.
Patent JP-H04225546-A (JP)
Title: Method of manufacturing semiconductor device
Inventor: OMOMO YOSHIAKI
IPC: H01L21/68
Filed: 1990-12-27
Abstract: PURPOSE:To form a semiconductor element on both surfaces of a semiconductor substrate and prevent dust or flaws in the process of both surfaces of the semiconductor substrate in a manufacturing process. CONSTITUTION:A semiconductor substrate 1 is used in which an opening 2 is formed at the center and which a contact part 3 of a ring-like transferring mechanism is provided in the periphery of the opening 2, and the semiconductor substrate 1 is transferred in a condition that a shaft 5 of the transferring mechanism 4 is inserted into the opening 2, or the semiconductor substrate 1 is fixed, processed, and so constructed as to mount semiconductor elements on both surfaces of the semiconductor substrate 1.
Patent JP-H0446131-A (JP)
Title: Isomerization of xylene
Inventor: WAANAA OTSUTOO HAAGU
IPC: B01J29/80
Filed: 1990-12-18
Abstract: PURPOSE: To selectively isomerize xylene without loss of xylene by using a catalyst system including zeolite having high selectivity to conversion of ethylbenzene and zeolite having high selectivity to isomerization of xylene.  
     CONSTITUTION: In the isomerization of an aromatic C 8  mixture including xylene and 0-50% of ethylbenzene and having the concentration of p-xylene lower than the thermodynamical equilibrium, a catalyst system comprising (A) a component comprising zeolite which gives a value lower than 80% of equibrium isomerization of p-xylene when a supply material comprising 14% (by wt.) of ethylbenzene, 10% of p-xylene, 53% of m-xylene and 23% of O-xylene is tested under specific test conditions, and 0-10% of a metal halide, and (B) component which includes zeolite which gives the value higher than 80% in the above- mentioned test, and 0-10% of the metal halide, is used under a condition that a zeolite wt. ratio A/B is 20/80 to 98/2, and the isomerization is performed at 200-600°C, 100-10450 kPa of pressure, and 0.5-100 WHSV, and with 0-10 molar ratio of H 2 /hydrocarbon. 
     COPYRIGHT: (C)1992,JPO
Patent JP-H05325889-A (JP)
Title: Display discharge tube
Inventor: SHIMADA MITSUHISA
IPC: H01J61/06
Filed: 1990-12-25
Abstract: PURPOSE:To eliminate a brightness unevenness of the discharge emission by mixing a conductive substance in an emitter layer which consists of an emitter substance including a metal isolated from a metal oxide, forming it on a cathode base to make into a cathode, and providing it in a sealed container in which a discharge gas is enclosed. CONSTITUTION:Along the inner peripheral surface of an anode 2 with a reverse conical form, a cathode 3 with the same reverse conical form whose diameter is smaller than that of the anode 2 is provided placing a discharge clearance, and they are housed in a glass sealed container 4. In this container 4, a discharge gas mainly of Ne, Ar, He, Xe, and the like are sealed, and an emitter layer 5 is provided on the inner peripheral surface of the cathode 3. When the layer 5 is formed, conductive metal powders 9 such as Ti, Zr, Ta, Ba, and Ni are mixed in an electrode application agent mainly of a carbonate such as BaCO3, at first, making the weight persentage 2 to 10%, and after applying the mixture on the inner peripheral surface of a cathode base made of Ni, it is heated to resolve the BaCO3 into the BaO and the CO2. And then, an arc discharge is generated between the anode 2 and the cathode 3, and the emitter layer 5 which consists of Bas 8 and powders 9 in the BaOs 7 is formed.
Patent JP-H0649126-A (JP)
Title: Production of ultralow-molecular-weight polyethylene with fluidized bed
Inventor: YUUJIIN HARII SEOBOORUDO
IPC: C08F2/34
Filed: 1990-12-28
Abstract: PURPOSE: To continuously prepare very low mol.wt. ethylene polymers in a fluidized bed in the presence of hydrogen of high concn., using a vanadium-based catalyst, while maintaining high catalyst activity.  
     CONSTITUTION: A gaseous mixture of (1) ethylene or ethylene and at least one kind of α-olefin higher than ethylene, where molar ratio of a higher α-olefin to ethylene is (0.01:1) to (0.70:1), (2) hydrogen of 5-20 mole % and (3) a inactive gas of 15-40 mole % is brought into contact with a catalyst system, essentially contg. (A) solid catalyst components comprising (1) a solid granular amorphous inorg. material as a carrier, (2) a reaction product of (a) vanadium trichloride with (b) a electron donor and (3) a boron halogenide or alkylaluminum, (B) an alkylaluminum promoter and (C) a halohydrocarbon polymerizing promoter, in a fluidized bed at 10-75°C and under ≤7,000 kPa. 
     COPYRIGHT: (C)1994,JPO
Patent JP-S61500843-A (JP)
Title: 規則的幾何学的形状の疎水性結晶性微孔質ケイ素質物質
IPC: B01J29/04
Filed: 1984-12-21
Abstract: (57)【要約】本公報は電子出願前の出願データであるため要約のデータは記録されません。
Patent JP-H08510497-A (JP)
IPC: B01J19/26
Filed: 1994-05-19
Abstract: The invention relates to continuous gas fluidised bed polymerisation of olefins, especially ethylene, propylene, or mixtures of these with other alpha olefins, wherein the monomer-containing recycle gas employed to fluidise the bed is cooled to condense out at least some liquid hydrocarbon. The condensed liquid, which can be a monomer or an inert liquid, is separated from the recycle gas and is introduced directly to the bed to produce cooling by latent heat of evaporation. The liquid is introduced directly into the bed using injection means. The process provides substantially improved productivity of gas fluidised bed polymerisation of olefins. <IMAGE>
Patent JP-H06509043-A (JP)
Title: 保護装置および／または保持のための方法におけるまたは関する改良
IPC: B65D71/42
Filed: 1992-06-12
Abstract: (57)【要約】本公報は電子出願前の出願データであるため要約のデータは記録されません。
Patent JP-H01501801-A (JP)
IPC: C10M133/18
Filed: 1987-12-15
Abstract: A lubricant mixture suitable for a manual transmission fluid comprising: (a) a boronated overbased alkali metal or alkaline earth metal salt selected from the group consisting of sulfonates, phenates, oxylates, carboxylates and mixtures thereof; (b) a friction modifier selected from the group consisting of fatty phosphites, fatty acid amides, borated fatty epoxides, fatty amines, glycerol esters and their borated derivatives, borated alkoxylated fatty amines, sulfurized olefins and mixtures thereof; (c) and an oil of lubricating viscosity, wherein such lubricants have excellent static and dynamic frictional characteristics. The lubricant fluids are particularly useful in reducing double detent and clashing during manual transmission shifting.
Patent JP-2000511905-A (JP)
Title: ７―デオキシ―６―置換パクリタクセル
IPC: A61K31/4465
Filed: 1997-06-05
Abstract: (57)【要約】
本発明は新規パクリタクセル誘導体、抗腫瘍剤としてのその利用及び製薬調合物に関する。
Patent JP-H11506882-A (JP)
Title: 同期オプティカル環境における同期分布
IPC: H04L7/00
Filed: 1996-05-31
Abstract: (57)【要約】
回路網全体に渡り同期化を分布させる装置と方法とが開示されている。基準タイミング信号を発生させることにより、そして第１のオフイスにおけるタイミング基準信号とフレームのスタートとの間のラインクロックパルスを数え、そのカウントをエンコードし、次のオフイスに送ることにより同期化状態を分布させる。この次のオフイスではその送られてきたカウントをデコードし、フレームのスタートからの受信ラインクロック・パルスを数えて基準タイミング信号を再発させることによって同期化状態を再現する。
Patent JP-S61501104-A (JP)
Title: 蒸気噴射フリ−タ−ビン型ガスタ−ビン
IPC: F02C9/48
Filed: 1985-01-30
Abstract: (57)【要約】本公報は電子出願前の出願データであるため要約のデータは記録されません。
Patent JP-H07507862-A (JP)
IPC: F23R3/30
Filed: 1993-05-20
Abstract: A combustion chamber 42 for an axial flow rotary machine 10 is disclosed. Various construction details are developed for controlling the production of emissions such as carbon monoxide, unburnt hydrocarbons and oxides of nitrogen. In one embodiment, the combustion chamber has a pilot zone 108 which extends axially and a main zone 106 axially adjacent to the pilot zone which has a divergent outer wall having a divergent end region 178 through which locally swirling gases are injected into swirling gases from the pilot zone 108.
Patent JP-H08511355-A (JP)
Title: 光・電気・機械デバイスまたはフィルタ、その製造方法、およびそれらから製造されるセンサ
IPC: G01P15/10
Filed: 1994-05-25
Abstract: (57)【要約】
本発明は、振動運動が、光起電力エネルギー変換デバイス上に投げかけられる放射エネルギーに結合される、共振半導体部材を使用する、デバイスおよびその応用例に関する。本発明は、振動動作がその他の方法で影響を受け、その影響が光学的に読み取られる、そのようなデバイスにも関する。光学方法を使用して、マイクロビームを駆動し、マイクロビームの振動を検知し、ある条件が満たされた場合、電子光学構成要素を介在させずに自己共振を発生させ、そのため、圧電抵抗器、駆動電極、電気接点、および電気的相互接続用の金属被膜が不要になる。ウェハのキャビティまたはその他の空間のほぼ全体にわたって、あるいは完全に全体にわたって延びる、一方の電気型（ｐまたはｎ）の共振マイクロ構造体部材をウェハの上方に形成する。キャビティの壁またはフロアのある位置に、逆の型（ｐまたはｎ）の材料の領域がある。この２つの型の間の界面は、ｐ−ｎ接合部であり、光起電力構造の最もよく知られている態様である。可とう性部材および逆の型の領域はほぼ、駆動放射エネルギーの経路中にあるべきである。本発明のデバイスは、光・電子・機械的に結合されたホトダイオードとして働き、入射駆動光によって可とう性部材を逆の型の領域に静電的に引きつけさせる。可とう性部材を基板あるいは一体型カバーまたは頂部キャップに近接させると、部材のわずかな変位によって反射光の強度を大きな変調することができるファブリ・ペロー干渉計が形成される。好ましい態様は、真空排気されたカプセル内に位置する振動部材を有する。頂部キャップが前記部材の一方の面を密封し、前記部材が取り付けられ、あるいは形成されたウェハが他方の面を密封する。圧力センサ、加速度計、音響範囲装置、温度感応装置などの応用例がある。
Patent JP-S58500620-A (JP)
Title: デイスクブレ−キ
IPC: B62L1/10
Filed: 1982-03-26
Abstract: (57)【要約】本公報は電子出願前の出願データであるため要約のデータは記録されません。
Patent JP-H11506093-A (JP)
Title: 強化繊維ペレット
IPC: C03C25/00
Filed: 1996-06-03
Abstract: (57)【要約】
ガラス繊維を水和して、該ガラス繊維における水含量を約11〜約20重量％とし、該ガラス繊維を少なくとも約３分間混合し、それによりペレットを形成し、かつ乾燥する方法により製造されたペレットを含む強化組成物を提供する。
Patent JP-H02503308-A (JP)
Title: ケブレル相粉体の密度を増加しかつ均質度を改良する方法および該方法により得られるケブレル相ワイヤー
IPC: C01B17/20
Filed: 1989-01-20
Abstract: (57)【要約】本公報は電子出願前の出願データであるため要約のデータは記録されません。
Patent JP-S61501689-A (JP)
Title: 複数表面部分に塗料を塗布する方法及び装置
IPC: B05D1/02
Filed: 1985-03-22
Abstract: (57)【要約】本公報は電子出願前の出願データであるため要約のデータは記録されません。
Patent JP-H02503150-A (JP)
Title: 剛毛製品を製造する方法
IPC: A46B3/06
Filed: 1988-02-03
Abstract: (57)【要約】本公報は電子出願前の出願データであるため要約のデータは記録されません。
Patent JP-2002503148-A (JP)
Title: 回転式ミネラル破砕機のロータベッド輪郭形成
IPC: B02C13/14
Filed: 1998-06-04
Abstract: (57)【要約】
略鉛直軸線回りを回転できるロータ（１）を有する形式の回転式ミネラル破砕機。ロータは、破砕されるべきミネラル片のための入口を有する。入口は、上から見ると回転軸線に対し概ね平行である。ロータはまた、かかる材料即ち破砕後のミネラルを、周囲のミネラル材料干渉区域（６）内にロータの半径方向に流出させるための少なくとも一つの周辺出口ポート（９）を有する。ロータは、ロータに担持されて出口ポート幾何形状を提供する手段を各周辺ポートに備え、該幾何形状はミネラル片ベッド堆積堰（３）を少なくとも含んでベッドの適切なプロファイル形成により、これらミネラル片が使用時に、保持されたミネラル片のベッド（５）上で加速して保持されたベッドの上方領域から堰（３）を越え流出するのを促進するようにしたことを特徴とする。
Patent JP-H10501854-A (JP)
IPC: D21H21/24
Filed: 1995-05-23
Abstract: A lotion composition for imparting a soft, lubricious, lotion-like feel when applied to tissue paper in amounts as low as from about 5 to about 15% by weight, and tissue paper treated with such lotion compositions are disclosed. The lotion composition comprises plastic or fluid emollient such as petrolatum, or a mixture of petrolatum with alkyl ethoxylate emollient, an immobilizing agent such as a fatty alcohol or fatty acid to immobilize the emollient on the surface of the tissue paper web and optionally a hydrophilic surfactant to improve wettability when applied to toilet tissue. Because less lotion is required to impart the desired soft, lotion-like feel benefits, detrimental effects on the tensile strength and caliper of the lotioned paper are minimized or avoided.
Patent JP-H06510690-A (JP)
IPC: A61M16/04
Filed: 1993-06-22
Abstract: PCT No. PCT/SE93/00554 Sec. 371 Date Feb. 10, 1994 Sec. 102(e) Date Feb. 10, 1994 PCT Filed Jun. 22, 1993 PCT Pub. No. WO94/00756 PCT Pub. Date Jan. 6, 1994.A device for indicating the presence of CO2 in a patient's inhaled air comprises a CO2 detector including an indicator element (14) which undergoes a reversible color change in response to exposure thereof to air containing CO2 in concentrations of the same order of magnitude as the CO2 concentration of air exhaled by a human being, and also comprises a heat-moisture exchanger (12) including a housing (13) with a first connecting port (15) adapted to be connected to the trachea of a patient, and a second connecting port (15) adapted for connection to a ventilator or an anesthetic machine, for example. In a flow-through passage (P) extending between the connecting ports (15, 16) there is mounted an element (18) for the regenerative exchange of heat and moisture between, on the one hand, air flowing through the flow-through passage (P) in one direction and, on the other hand, air flowing through the flow-through passage (P) in the opposite direction. The indicator element (14) is disposed in the flow-through passage on the side of the heat-moisture exchanger element (18) remote from the first connecting port (15) and is viewable from outside the housing, and its response time for the color change is sufficiently short to enable it to change color upon each breath.