baber/WOPTO huggingface dataset:
Patent JP-2004208947-A (JP)
Title: Pinball game machine
Inventor: TANAKA ASAO
IPC: A63F7/02
Filed: 2002-12-27
Abstract: <P>PROBLEM TO BE SOLVED: To provide a pinball game machine which enables the playing of games constantly in a stable fixed condition by preventing a game board from being left yet to fix while facilitating the operation of loading or unloading the game board.  <P>SOLUTION: A fixing lever 115 is rotatably installed, protruding forward on the front frame side, and the game board 10 is provided with a retaining receiving part 120 which is engaged with a lever part of the fixing lever to be retained when the fixing lever 115 is turned to the retained position while letting the lever part at the released position pass to make the fixing lever protrude forward. A glass door 5 which is closed normally ahead of the game board 10 at a specified interval is provided with an interference protrusion 135 which contacts the fixing lever 115 located at the retained position while being kept from interfering with the fixing lever 115 located at the retained position when the glass door is oscillated in the direction of being closed, and an opened door holding mechanism 150 is provided thereabove to keep the glass door 5 open at a specified angle.  <P>COPYRIGHT: (C)2004,JPO&NCIPI
Patent JP-2004181439-A (JP)
Title: Discharge amount regulating implement
Inventor: UENO NORIYOSHI
IPC: B05C17/00
Filed: 2002-11-30
Abstract: <P>PROBLEM TO BE SOLVED: To provide an implement for coating a filler by arranging a valve, which seals a vessel when the filler is filled in the vessel, at the edge of the vessel body and by squeezing the vessel when in use and pressure contacting the valve at the edge of the vessel body to a surface to be coated.  <P>SOLUTION: This is an implement capable of coating the filler by arranging the valve at the edge of the vessel, which valve seals the vessel just when the filler is filled in the vessel and when discharging, by the virtue of the valve and a press power while regulating a discharge amount.  <P>COPYRIGHT: (C)2004,JPO&NCIPI
Patent JP-2004501586-A (JP)
Title: 移動の評価
IPC: H04B7/26
Filed: 2001-06-14
Abstract: 本発明は、移動トランシーバおよび無線システム内におけるこの移動トランシーバの移動を検出する方法に関する。無欄システムは１以上の基地局と、端末とを含んでいる。無線システムの動作において移動トランシーバの移動を考慮するために移動トランシーバの動きが１以上の加速度センサ（１１４−１１６） により測定される。 【選択図】図２
Patent JP-2004501626-A (JP)
Title: 血清および血漿中に見出されるプリオン結合活性を有する因子
IPC: C12Q1/37
Filed: 2001-03-27
Abstract: 病原性プリオンタンパク質を濃縮および検出ならびに定量するための方法およびツール、ならびにプリオン病の検出および／または予防もしくは治療において用いられる物質が開示される。この物質は、血清および血漿中に見出されるプリオン結合活性を有する因子である。
Patent JP-2004503692-A (JP)
IPC: D21F1/02
Filed: 2001-06-12
Abstract: A method for fluidisation of a pulp flow in the headbox of a paper machine or such. The characteristics of the pulp flow are affected in the headbox's fluidiser (14) in one step only, whereby the height (h1) of the step is at least equal to the average fibre length, and after the fluidiser (14) the biggest permissible step expression in the flow channel in direction z is smaller than the average fibre length.
Patent JP-2004509746-A (JP)
IPC: B05C9/04
Filed: 2001-09-24
Abstract: A method for continuously coating at least one surface of a metal strip with a single-layer or multilayer crosslinkable polymer fluid film (20) obtained from solid precursors at room temperature and free of non-reactive solvent or diluent and whereof the softening temperature is higher than 50° C. The method includes: continuously unwinding the metal strip (1); preheating the metal strip (1) at a temperature substantially equal to or higher than the crosslinkable polymer softening temperature; forming by forced flow on an applicator roll (12) with deformable surface a single-layer or multilayer coat (13) of the crosslinkable polymer; driving in rotation the applicator roll in the same direction as that of the unwinding of the metal strip (1), heating the applicator roll (12) to a temperature higher than the temperature for forming the coat; and transferring the coat onto the metal strip to form the single-layer or mutilayer film (20) on the corresponding surface of the metal strip (1). Also a coating device for implementing the method.
Patent JP-2004509936-A (JP)
IPC: C07C5/32
Filed: 2001-09-14
Abstract: In a process for the heterogeneously catalyzed dehydrogenation in one or more reaction zones of one or more dehydrogenatable C<SUB>2</SUB>-C<SUB>30</SUB>-hydrocarbons in a reaction gas mixture comprising them, with at least part of the heat of dehydrogenation required being generated directly in the reaction gas mixture in at least one reaction zone by combustion of hydrogen, the hydrocarbon or hydrocarbons and/or carbon in the presence of an oxygen-containing gas, the reaction gas mixture comprising the dehydrogenatable hydrocarbon or hydrocarbons is brought into contact with a Lewis-acid dehydrogenation catalyst which has essentially no Brönsted acidity.
Patent JP-2004522668-A (JP)
IPC: G08G7/02
Filed: 2002-01-17
Abstract: An anti-collision protection system for machines that operate in a raw material stockpile yard is disclosed. The machines are moveable in the yard in defined paths, with each machine including a material delivery and/or material recovery boom that can be rotated about a vertical axis. The system includes a means for defining an envelope around each boom ( 5 ) that moves with the boom, with each envelope forming a boundary of an exclusion zone for the boom. The system also includes a means for detecting an intersection of the boundaries of the exclusion zones and a means responsive to a detected boundary intersection to prevent collision of the machines.
Patent JP-2004523174-A (JP)
Title: Ｉｐネットワークにおける基本的コールファンクションとサービス提供の分離
IPC: H04Q3/00
Filed: 2002-02-22
Abstract: 通信システムは、ユーザにサービスをオファーするＩＰネットワークと、ユーザにコール関連ファンクションを提供するＩＰＴプロバイダーネットワークとを備えている。ＩＰＴプロバイダーネットワークにおける各サービスエンティティにより制御プロトコルメッセージが受信されて分析される。分析結果に基づいて、コール関連ファンクションが各サービスエンティティにより実行される。更に、受信した制御プロトコルメッセージがＩＰネットワークにより分析され、分析結果に基づいて、ＩＰネットワークによりサービスが実行される。
Patent JP-2005500010-A (JP)
Title: 核内ホルモンレセプターリガンド結合ドメイン
IPC: A61P3/04
Filed: 2002-03-05
Abstract: 本発明は、新規なタンパク質（LBDG3と称され、本明細書では核内ホルモンレセプターリガンド結合ドメインと特定された）並びに疾患の診断、予防および治療における前記タンパク質およびコード遺伝子由来の核酸配列の使用に関する。
Patent JP-2005508257-A (JP)
IPC: F16F1/00
Filed: 2002-03-12
Abstract: Synthetic molecular spring device featuring: (a) a synthetic molecular assembly, SMA, each scalable chemical module including: (i) at least one atom, M, (ii) at least one complexing group, CG, complexed to an atom, M, (iii) at least one axial ligand, AL, reversibly physicochemically paired with at least one atom, M, complexed to a complexing group, CG, (iv) at least one substantially elastic molecular linker, ML, having body and two ends with at least one chemically bonded to another component of SMA; (b) activating mechanism, AM, operatively directed to an atom-axial ligand pair, whereby following activating mechanism, AM, sending activating signal, AS/AS′, to an atom-axial ligand pair for physicochemically modifying the atom-axial ligand pair, there is activating at least one cycle of spring-type elastic reversible transitions between contracted and expanded linear conformational states of molecular linker, ML. Optionally includes (v) chemical connectors, CC, and/or, (vi) binding sites, BS.
Patent JP-2004532551-A (JP)
Title: 送受信装置
IPC: H04B1/40
Filed: 2002-03-26
Abstract: 本発明は、複素信号（Ｉ，Ｑ）を流すためにそれぞれ形成された受信枝線（１）および送信枝線（２）と、スイッチ（８）を制御する制御装置（２６）とを含んだ送受信装置に関するものである。また、この制御装置を用いて、位相調整ループ（ＰＬＬ）（３０）が、共通の搬送周波数を供給するために送受信側に備えられた周波数変換機（１１〜１４）に接続されている。または、この制御装置を用いて、それぞれ独立して駆動するＰＬＬ（３０，４０）が、送受信枝線（１，２）用に備えられている。したがって、送信機が例えば直接変換によって駆動できる一方で、受信機は、例えば低ＩＦ原理によって駆動できる。本発明を、ＯＦＤＭ多重搬送波システムに使用できる。
Patent JP-2004523248-A (JP)
Title: 必須脂肪酸含有食餌サプリメント及びその製品
IPC: A23K1/10
Filed: 2002-04-23
Abstract: 本発明は、飼料サプリメント、並びに、乳牛、肉用牛、山羊、及び家禽を含む動物のミルク、卵、肉、及びその他の副産物の必須脂肪酸含有量を高める方法に関する。かかる食餌サプリメントを給餌した動物のミルク、卵、肉、及び加工畜産品の必須脂肪酸含有量レベルを高めるために、本明細書記載の食餌サプリメントには、天然成分／コーティングミックスと混合された、特定の魚肉、魚油、藻類、又は植物の食餌サプリメントも含まれ、かかる天然成分／コーティングミックスとしては、タルク、クレー若しくはその組合せ；又は、タルク若しくはクレーを発芽亜麻粉末と混合した物でもよい。反芻動物については、天然成分／コーティングミックスが、この組成物を給餌した動物の反芻胃において必須脂肪酸の微生物分解を抑制することにより、より多くの必須脂肪酸をその用途のために、該動物に提供する。このことはまた、結果として、かかる動物のミルク、肉、及び加工製品の濃度を高めることにもなる。かかる食餌サプリメントを給餌した家禽の卵及び肉も高濃度の必須脂肪酸を含有する。
Patent JP-2004535851-A (JP)
Title: カテーテルベースの輪状形成術のための方法および装置（発明の背景）（１．発明の分野）本発明は、一般に、僧帽弁漏出のような僧帽弁機能不全を処置するための技術に関する。より具体的には、本発明は、最小限侵襲性の様式で、漏出性僧帽弁を処置するためのシステムおよび方法に関する。
IPC: A61F2/24
Filed: 2002-04-09
Abstract: 本発明は、輪状形成術を実施するための最小限侵襲性の方法に関する。本発明の１局面に従って、心臓の僧帽弁（７２８）に対して手順を実施するための方法は、移植物（９２４）を左心室に挿入する工程、およびこの移植物を僧帽弁の実質的に下の左心室に方向付ける工程を包含する。この移植物（９２４）および僧帽弁（７２８）の周りの組織（９７０）は、結合し、そして１実施形態において、僧帽弁（７２８）に関連する弧の長さを実質的に減少させるために、張力がこの移植物に提供される。別の実施形態において、移植物（９２４）は、大動脈および大動脈弁を通って左心室に挿入される。
Patent JP-2004533751-A (JP)
Title: データ記録を関連付けるためのシステムおよび方法
IPC: G06Q20/40
Filed: 2002-04-18
Abstract: 複数のサービス・プロバイダ（４５２）を含めてサービス・アクセス・システムで生成される複数のトランザクション・データ記録を関連付ける方法（４００）およびシステム（２００）が提供される。トランザクション・データ記録は、単一ユーザ・セッション中にユーザがシステムにアクセスしたのに応えて生成される。この方法は、単一ユーザ・セッションに一意に関連付けられ、サービス・プロバイダによって受信可能な一意のセッションＩＤ（５２０）を生成することを含む。一意のセッションＩＤ（５２０）は、トランザクション・データ記録に含まれる。複数のトランザクション・データ記録は、トランザクション処理施設でサービス・プロバイダから受信され、各トランザクション・データ記録の一意のセッションＩＤを使用して処理する。ある実施形態では、ユーザ・セッションが認証である場合、各トランザクション・データ記録のユーザＩＤストリングに一意のセッションＩＤが提供される。
Patent JP-2004525732-A (JP)
Title: 引き伸ばし可能な吸収性物品
IPC: A61F13/53
Filed: 2002-05-10
Abstract: 縦方向に延び横方向に引き伸ばし可能であり且つ両側の端部と両側の側部領域とを有する吸収性複合材を備えた吸収性衣類である。吸収性複合材は、裏面シートと、上面シートと、裏面シートと上面シートとの間に配置された保持部とを備える。１つの好ましい実施形態においては、裏面シートと保持部との各々は、両側の側部領域の少なくとも一方に沿って形成された少なくとも１つの折畳み部を備え、該折畳み部は互いに折り込まれる。吸収性複合材の両側の端の一方に隣接する吸収性複合材の両側の側部領域に一対の前身体パネルが取り付けられ、吸収性複合材の両側の端の他方に隣接する両側の側部領域に一対の背身体パネルが取り付けられる。好ましい実施形態においては、前及び背身体パネルは、一対の側部身体パネルを形成するために接合される。吸収性衣類を組み立てる方法と共に、吸収性衣類を用いる方法も提供する。
Patent JP-2004211874-A (JP)
Title: Pipe connection device and clip
Inventor: HINO TOSHIO
IPC: E03C1/02
Filed: 2003-01-08
Abstract: <P>PROBLEM TO BE SOLVED: To provide a simple operation type pipe connection device for connecting both equipments with pipes, even when somewhat shorter, and a clip to be used for the pipe connection device.  <P>SOLUTION: The pipe connection device 30 comprises a flange 32 with a flange 31, a plug 35 with a flange 33, and the clip 36 for linking both flanges 31, 34. The clip 36 has a large engagement portion 41 for overlapping flanges 31, 34 to be engageable therewith and a first small engagement portion 42 and a second small engagement portion 43 for each of the flanges 31, 34 to be engageable therewith. The first small engagement portion 42 and the second small engagement portion 43 are arranged on both sides of the large engagement portion 41 in mutually spaced relation. When a hose 7 is short, an insertion cylinder 33 is inserted shallowly into a socket 32 and the flanges 31, 34 are put in engagement with the first small engagement portion 42 and the second small engagement portion 43, respectively.  <P>COPYRIGHT: (C)2004,JPO&NCIPI
Patent JP-2004219575-A (JP)
Title: Fixing device
Inventor: SATO MAKOTO
IPC: G03G15/20
Filed: 2003-01-10
Abstract: <P>PROBLEM TO BE SOLVED: To ensure uniform contact of regulating members with a fixing member and, at the same time, to obtain satisfactory peeling performance with small energizing force.  <P>SOLUTION: The regulating members 80 are disposed on both ends of the peeling member 70 by which a recording medium passing through a pressure contact part N between the fixing roller and the pressure roller is peeled from the surface of the fixing roller, and regulates a gap between the surface of the fixing roller 61 and the peeling member 70 by abutting on both ends of the fixing roller 61. Each regulating member is supported by a long hole 81 and a shaft 65. In the position 71 where the recording medium is peeled by the peeling member 70, the center of the shaft 65 is disposed in the range c of +45° and in the range d of -45° around a peeling position 71 in the direction b in which a recording medium is moved. The direction a of the length of each long hole 81 faces in the reverse direction of the rotation of the fixing member around the shaft 65 so as to extend from a direction g perpendicular to the connection line e of the peeling position and the center of the shaft in the direction b of the movement of the recording medium in the peeling position.  <P>COPYRIGHT: (C)2004,JPO&NCIPI
Patent JP-2004222426-A (JP)
Title: Submarine repeater
Inventor: OGUSHI TETSURO
IPC: H02G15/14
Filed: 2003-01-15
Abstract: <P>PROBLEM TO BE SOLVED: To improve heat dissipation by reducing thermal resistance between an inner unit and an external cabinet in a submarine repeater.  <P>SOLUTION: Heat conduction plates 4a, 4b are arranged so as to be in contact with the periphery of the inner unit 1 and the internal perimeter of the external cabinet 2. A mesh spring layer 3 wherein strands 6 formed in waveform are collected and woven is arranged between the heat conduction plates 4a, 4b. The layer 3 and the plates 4a, 4b are bonded and fixed by solder bonding parts 7. Valley parts 6a in the waveform of the strands 6 are bonded to the heat conduction plate 4a, and crest parts 6b are bonded to the heat conduction plate 4b. As a result, heat generated in the inner unit 1 is dissipated effectively to the external cabinet 2 side through the strands 6.  <P>COPYRIGHT: (C)2004,JPO&NCIPI
Patent JP-2004217140-A (JP)
Title: Antenna structure of immobilizer
Inventor: YAMAMOTO MASAYUKI
IPC: B60R25/04
Filed: 2003-01-17
Abstract: <P>PROBLEM TO BE SOLVED: To provide an antenna structure of an immobilizer that can generate a large magnetic field by suppressing magnetic effect from a metal key cylinder without increasing diameter of a coil constituting the antenna and does not affect mounting to a car body.  <P>SOLUTION: The antenna structure of the immobilizer comprises a main switch body 10 formed by integrating the key cylinder and a main switch, an annular antenna coil 13 disposed near the rim section of the main switch body 10, a transponder 16 built in a knob section 17 of a key 15, and a control circuit for receiving an ID code transmitted by the transponder 16 via the antenna coil 13 and determining it. The antenna coil 13 is arranged in the front side of a key insert hole of the main switch body 10 in the insert direction.  <P>COPYRIGHT: (C)2004,JPO&NCIPI
Patent JP-2004217848-A (JP)
Title: Method for producing tubular polyimide molded article
Inventor: YANAGIDA MASAMI
IPC: G03G15/16
Filed: 2003-01-17
Abstract: <P>PROBLEM TO BE SOLVED: To provide a method for producing a tubular polyimide molded article for an intermediate transfer member of an electrophotographic apparatus, etc., to form a polyimide tube having good toner cleaning property and excellent mechanical durability.  <P>SOLUTION: The tubular polyimide molded article is produced by the atmospheric glow-plasma treatment of the outer surface of a tubular article containing a polyimide resin with a fluorine-containing compound, preferably a gaseous mixture of a fluorine-containing compound and an inert gas.  <P>COPYRIGHT: (C)2004,JPO&NCIPI
Patent JP-2004226441-A (JP)
Title: Hologram id recording/detection system by means of circular bar code
Inventor: SUGIYAMA AKINARI
IPC: G06K1/12
Filed: 2003-01-20
Abstract: <P>PROBLEM TO BE SOLVED: To provide a hologram ID recording/detection system capable of easily detecting ID information even when an object on which the ID information is holographed and recorded is rotated or is moved up-and-down and right-and-left.  <P>SOLUTION: A film on which a circular bar code and a transmission hole for transmitting a reference beam on the central part of the circular bar code are formed is irradiated with a laser beam, wherein, the circular bar code is constituted by arranging a plurality of thin slits and thick slits concentrically. An object beam passing through the film and containing circular bar code information is collected on a recording original plate on the focus, in addition to this, the reference beam is converged into the focus and a hologram is thus recorded by the object beam and the reference beam. Further, such a film is irradiated with the laser beam and the object beam passing through the film and containing the circular bar code information is collected on the hologram made of metal etc. on the focus. The reflection beam formed thereby is guided to a detector by means of a prism, the existence of the correlation output is detected and, thereby, the ID information matched to an ID pattern of the film is detected.  <P>COPYRIGHT: (C)2004,JPO&NCIPI
Patent JP-2004226556-A (JP)
Title: Method and device for diagnosing speaking, speaking learning assist method, sound synthesis method, karaoke practicing assist method, voice training assist method, dictionary, language teaching material, dialect correcting method, and dialect learning method
Inventor: SAITO MASUMI
IPC: G10L25/00
Filed: 2003-01-21
Abstract: <P>PROBLEM TO BE SOLVED: To make diagnosis of the speaking etc. easy by visual representation using a computer etc.  <P>SOLUTION: A speaking diagnosing method for diagnosing the speaking of a person who desires a diagnosis by using a computer includes: a voice data acquisition step of inputting voice data generated by recording the way of speaking of the person to be diagnosed to the computer; a voice data analysis step of analyzing the voice data inputted in the voice data acquisition step as to variations of the pitch, tempo, and loudness of the voice etc.; and an analysis result display step of visually displaying the way of speaking of the person who desires the diagnosis according to the results of analyses performed at the data analysis step. The display in the analysis result display step is carried out by using a stave or drawing a graph representing the pitch and loudness of the voice on two axes.  <P>COPYRIGHT: (C)2004,JPO&NCIPI
Patent JP-2004222874-A (JP)
Title: Rack
Inventor: SAKAI OSAMU
IPC: A47B45/00
Filed: 2003-01-21
Abstract: <P>PROBLEM TO BE SOLVED: To provide a rack which enables the ideal arrangement thereof in a space at the lower leg level of various desks such as those with cross materials for stepping in the space and those with no cross materials therein.  <P>SOLUTION: The rack 1 arranged at a space S1 at the lower leg level of the desk T includes a housing unit body 2 forming a housing space, supports 3 for supporting the housing unit body 2 and bases 4 each disposed along the floor surface F from the lower end part of the support 3. The height position of the housing unit body 1 is made changeable and so set that a space S2 is formed between the housing unit body 1 and the bases 4 at a specified raised position thereof.  <P>COPYRIGHT: (C)2004,JPO&NCIPI
Patent JP-2004223643-A (JP)
Title: Wafer grinding device
Inventor: OKUYAMA TETSUO
IPC: B24B45/00
Filed: 2003-01-22
Abstract: <P>PROBLEM TO BE SOLVED: To prevent splashed grinding fluid for rough machining from adhering to a lower surface of a grinding tool for finishing arranged on an upper side of a grinding tool for rough machining, even if the grinding fluid of rough machining is splashed in the rough machining by the grinding tool for rough machining.  <P>SOLUTION: In this wafer grinding device, a lower grinding tool 7e is mounted in an opening part of a tapered hole 1a of a spindle 1 and an upper grinding tool 6a is provided on an end face of the spindle 1 to perform grinding of a wafer 3 sucked on an upper surface part of a rotary table 2. A partition cover 10 is provided between the lower grinding tool 7e and the upper grinding tool 6a.  <P>COPYRIGHT: (C)2004,JPO&NCIPI
Patent JP-2004228865-A (JP)
Title: Lighting device
Inventor: MOTONO KOJI
IPC: H04B1/3822
Filed: 2003-01-22
Abstract: <P>PROBLEM TO BE SOLVED: To provide a lighting device for portable telephones attachable to and detachable from a portable telephone.  <P>SOLUTION: The lighting device 40 is attachable to and detachable from the portable telephone 10. The lighting device 40 is equipped with a power supply connection which is used for attaching/detaching the lighting device 40 to/from the portable telephone 10, and enables the use of the power supply of the portable telephone 10 as a power supply for the lighting device 40 when the lighting device 40 is attached to the portable telephone 10; and a light emitting section 42 which performs illumination using power supplied from the power supply connection. The lighting device 40 is provided with a boosting means which increases voltage supplied from the power supply connection and uses it as a power supply for the light emitting section 42.  <P>COPYRIGHT: (C)2004,JPO&NCIPI
Patent JP-2004222622-A (JP)
Title: Field-treating method for inhibiting cadmium absorption in paddy rice
Inventor: OMORI HIROAKI
IPC: A01G22/22
Filed: 2003-01-24
Abstract: <P>PROBLEM TO BE SOLVED: To reduce a cadmium absorption amount in paddy rice while carrying out an ordinary culture operation when paddy rice culture is carried out.  <P>SOLUTION: The subject field treating method for inhibiting the cadmium absorption in the paddy rice comprises applying nitrolime and/or a material containing the nitrolime in an amount of 100-400 kg based on nitrolime per hectare and an organic material in an amount of 3-30 ton per hectare to a paddy field, plowing the field, filling the field with water in such a level as not to cause exposure of soil and keeping the paddy field in flooded conditions at least for one month. In the field treating method, an unripe organic material is preferably used as the organic material and it is further preferable to apply nitrolime and/or a fertilizer containing nitrolime to the paddy field also when paddy rice culture is carried out.  <P>COPYRIGHT: (C)2004,JPO&NCIPI
Patent JP-2004226862-A (JP)
Title: Video display device and video display method
Inventor: SAKAI MAKOTO
IPC: G09G3/296
Filed: 2003-01-27
Abstract: <P>PROBLEM TO BE SOLVED: To enable video to be displayed always with sufficient gradation number regardless of modulus of display of input signal and level of input signal and thereby to improve the gradation reproducibility especially when the level of the input signal is low.  <P>SOLUTION: A video display device has an analog / digital converting means 3a for converting an analog video signal to a digital video signal by comparing the analog video signal with a reference signal and a display means 7 which divides one field composed of the digital video signal into a plurality of subfields having mutually different display periods and which performs gradation display of the one field by successively displaying a plurality of selected subfields. Further the video display device is provided with a detection means 5a for detecting maximum value of the analog video signal for every field and a reference signal compensating means 11 for compensating a value of the reference signal according to detected maximum value.  <P>COPYRIGHT: (C)2004,JPO&NCIPI
Patent JP-2003286878-A (JP)
Title: Device and method for exhaust-emission control of internal combustion engine
Inventor: HAYASHI KOTARO
IPC: F01N3/18
Filed: 2003-01-27
Abstract: <P>PROBLEM TO BE SOLVED: To provide a device and a method for exhaust-emission control of an internal combustion engine provided with a NOx catalyst in an exhaust path in which the NOx catalyst can be regenerated favorably from SOx poisoning irrespective of the operation condition of the internal combustion engine.  <P>SOLUTION: An air-fuel ratio of exhaust gas is controlled firstly to a 1st predetermined air-fuel ratio at which the volume of discharged smoke is set at an allowable upper limit. Then, the exhaust ratio is intermittently controlled to a 2nd predetermined air-fuel ratio which is overrich richer than the 1st air- fuel ratio enabling the NOx catalyst to recover from SOx poisoning, and the temperature of the NOx catalyst is controlled in the range of predetermined temperatures in which the catalyst can be recovered from SOx poisoning and the degradation of the NOx catalyst is not accelerated.  <P>COPYRIGHT: (C)2004,JPO