baber/WOPTO huggingface dataset:
Patent JP-2003536053-A (JP)
IPC: G01D5/245
Filed: 2001-03-13
Abstract: A position and electromagnetic field sensor is provided. The sensor relies upon an oscillator such as a Robinson marginal oscillator to generate an rf or microwave electromagnetic field. As an inhomogeneously shaped object, such as a metallic toothed wheel, for example, moves through the resultant field, the field experiences a change in electric or magnetic susceptibility. This in turn causes energy losses in the oscillator the magnitude of which can be output as a d.c. signal related thereto.  To detect non-moving objects which nevertheless generate an electromagnetic field or have attached to them a source thereof, the sensor also includes a giant or colossal magnetoresistive structure located adjacent the oscillator coil, the structure having an imaginary magnetic susceptibility which is strongly dependent upon the magnitude and direction of the field generated by or at the object to be sensed.
Patent JP-2003527200-A (JP)
IPC: A61F13/00
Filed: 2001-03-08
Abstract: A wound dressing with reduced accretion tendency and comprising a layer (2) which is at least single-ply, is characterized in that said layer is connected to a porous membrane or semi-permeable film (1) which faces the wound.
Patent JP-2003528641-A (JP)
Title: 食品成分の封入
IPC: A23L27/00
Filed: 2001-04-03
Abstract: (57)【要約】
酸素感受性油または油溶性酸素感受性物質を含有する油を、還元糖基を含有する炭水化物と反応させてあるタンパク質中に封入する。タンパク質、好ましくはカゼインと、炭水化物、好ましくは糖との水性混合物を、６０〜１６０℃の範囲内で加熱して、メイラード反応生成物を水性混合物中に形成させる。その後、最高５０重量％の油相を水相中に乳化して、マイクロカプセル化油粒子を形成させる。ＭＲＰの形成はまた、乳化後、乾燥前に行ってもよい。エマルションは、食品成分として用いるか、または乾燥して粉末を形成させることができる。
Patent JP-2003529455-A (JP)
Title: ウエハ研磨方法
IPC: B24B49/03
Filed: 2000-03-30
Abstract: (57)【要約】
第１のウエハ（１３）を搭載部材（１２）に搭載し、前記ハブを通して第１の真空圧力で真空を引くことによって前記搭載部材をハブ（１６）に固定し、前記ハブをハブ軸（ＡＨ）を中心に回転し、回転テーブル（３０）に搭載された研磨パッド（３４）を回転テーブル軸（ＡＴ）を中心に回転し、ウエハ（１３）の表面と前記研磨パッドとを相互に接触させる。ウエハ（１６）が取り外され、前記研磨されたウエハの形状が測定される。前記測定で得られた情報を使用して第２の真空圧力が選択される。次のウエハが前記第１のウエハと同様な方法で研磨されるが、前記第１の真空圧力は前記第２の真空圧力に置き換えられる。前記第２の真空圧力は搭載部材（１２）を変形させるのに十分であり、これによって前記ウエハが変形され、当該次のウエハの表面の平坦度と平行度とを改善する。
Patent JP-2003529781-A (JP)
Title: 複合ダイヤモンド窓
IPC: G02B1/00
Filed: 2001-04-02
Abstract: (57)【要約】
本発明は、ＣＶＤダイヤモンドの窓ガラス（１２）であって、ＣＶＤダイヤモンド窓枠（１４）に取り付けられている該窓ガラスを有する複合ダイヤモンド窓（１０）に関する。窓枠（１４）は窓ガラス（１２）より厚く、該窓枠中に、該窓ガラスが架かっている放射線透過用開口（１６）を有する。
Patent JP-2003530698-A (JP)
Title: 静電放電（ｅｓｄ）保護回路
IPC: H01L21/822
Filed: 2001-04-04
Abstract: (57)【要約】
集積回路（３１）の複数のＩ／Ｏ回路（３０，３２，３６）の各々に接続されたＥＳＤ保護回路（３９）を開示する。ＥＳＤ保護回路は、ＥＳＤ事象が発生した際に主要なＥＳＤ保護を提供するための、ＭＯＳＦＥＴトランジスタ（４０）を有する。１実施例において、ＭＯＳＦＥＴトランジスタの制御電極は、第一のバッファ回路（４２）に接続している。集積回路（３１）は、トリガバス（４７）を介してＥＳＤ保護回路に接続された遠隔トリガ回路（３７）を有する。個別ＥＳＤ保護回路は並列に作動し、ＥＳＤ事象が発生した際Ｉ／Ｏ回路（３０，３２，３６）にＥＳＤ保護を提供する。
Patent JP-2003531325-A (JP)
IPC: E04B9/00
Filed: 2001-04-23
Abstract: A structural panel for use in building structures or in the formation, finish or decoration thereof includes an outer sheet and a connector sheet with a plurality of collapsible or compressible dividers therebetween. The panel in a rest condition is expanded and of a desired thickness for final use but can be compressed into a relatively thin thickness or profile for shipping purposes. The panel is very lightweight but structurally strong and can be selectively bent in one transverse direction if desired. The panel can be easily cut or formed into any predetermined size or shape.
Patent JP-2003531870-A (JP)
Title: 金属イオンキレート化錯体と共役させた胆汁酸誘導体の微小血管の診断評価のための使用
IPC: A61K49/08
Filed: 2001-04-17
Abstract: (57)【要約】
５，０００ダルトン未満の分子量の、少なくとも一つの胆汁酸残基を含む造影剤の、微小血管透過率の評価のための診断用造影組成物を製造するための使用が開示される。
Patent JP-2003531764-A (JP)
Title: 特に自動車に用いられる変速機
IPC: F16H3/083
Filed: 2001-03-23
Abstract: (57)【要約】
特に自動車に用いられる変速機（１５；１５ａ；１５ｂ；１５ｃ）は２つの遊星歯車伝動装置（１６；１６ｃ，１７；１７ｃ）を有している。両遊星歯車伝動装置（１６；１６ｃ，１７；１７ｃ）のリングギヤ（１８；１８ｃ，１９）は歯付きリム（１２）を介して内燃機関のクランクシャフト（１１；１１ａ，１１ｃ）に結合されている。各遊星歯車伝動装置（１６；１６ｃ，１７）は、それぞれ１つの電気機械（２６，２７）と、それぞれ１つの変速機軸（３１，３２）とに連結されている。この変速機軸（３１，３２）には、種々異なる変速機変速比のための入力歯車（１Ｅ〜５Ｅ，ＲＥ）が配置されている。この入力歯車（１Ｅ〜５Ｅ，ＲＥ）は、出力軸（４０；４０ａ；４０ｃ）に配置された出力歯車（１Ａ〜５Ａ，ＲＡ）に噛み合っている。本発明によれば、コンスタントな走行運転での総効率を高めるために、電気機械および／または遊星歯車伝動装置（１６；１６ｃ，１７；１７ｃ）の飛越しが実施される。このためには、たとえば入力軸（１１）と変速機軸（３１，３２）とを互いに結合する歯車対が使用され得る。
Patent JP-2003532425-A (JP)
Title: 細菌性カルボキシペプチダーゼｃｐｇ２変種と遺伝子指令酵素プロドラッグ療法におけるその使用
IPC: A61K47/48
Filed: 2001-05-04
Abstract: (57)【要約】
本発明は、遺伝子指令酵素プロドラッグ療法、特に腫瘍を含む疾患の治療に使用するための細菌性カルボキシペプチダーゼに関する。具体的には、本発明は、触媒活性が上昇した修飾した細菌性カルボキシペプチダーゼに関する。
Patent JP-2003534631-A (JP)
Title: 中性ビームを制御することに基づく極紫外線源
IPC: H05G2/00
Filed: 2001-05-17
Abstract: (57)【要約】
光子源は、放電チャンバと、該放電チャンバ内にある複数のイオンビーム源と、中性化機構とを備えている。イオンビーム源の各々は作用ガスのイオンビームをプラズマ放電領域に向けて静電気的に加速する。中性化機構はイオンビームがプラズマ放電流域に入る前に、イオンビームの少なくとも一部分を中性化する。中性化されたビームはプラズマ放電領域に入り且つ光子を放射する高温プラズマを形成する。光子は柔らかいＸ線又は極紫外線波長範囲とすることができ、１つの実施の形態において、約１０乃至１５ナノメートルの範囲の波長を有する。
Patent JP-2003534696-A (JP)
Title: フィルタの改善
IPC: H03H9/17
Filed: 2001-05-23
Abstract: (57)【要約】
電気フィルタは、直列および並列に配列され、それぞれ、作用領域（Ｌ）が異なる電極（２４，２５）と任意に厚さ（Ｔ）が異なる圧電層（２３）とを有する複数の薄膜バルク波共振子（１０，１１）を備えている。
Patent JP-2003203089-A (JP)
Title: Web page retrieving method, device and program, and recording medium for recording program
Inventor: HIRAMATSU KAORU
IPC: G06F17/30
Filed: 2002-01-07
Abstract: <P>PROBLEM TO BE SOLVED: To increase a speed in a method of retrieving series of Web pages.  <P>SOLUTION: In this inquiry processing method for combining and designating a condition relating to the attribute extracted from the Web page and a condition relating to a hyperlink from a large amount of Web pages transmitted on the Internet, and retrieving the series of Web pages, an index relating to the Web page is utilized, a processing cost and a processing result of a condition which has not yet been processed, and on which the processing result can be obtained without depending on the processing result of the other condition, is estimated on the basis of the condition designated in the inquiry, and the operation for selecting and processing the optimum condition in accordance with the status of the inquired processing is repeated until all of the conditions designated in the inquiry have been processed, to determine the series of the Web pages satisfying the condition of the inquiry.  <P>COPYRIGHT: (C)2003,JPO
Patent JP-2003202165-A (JP)
Title: Air-conditioning system using low temperature exhaust heat
Inventor: TASHIRO KANJI
IPC: F24F5/00
Filed: 2002-01-08
Abstract: <P>PROBLEM TO BE SOLVED: To provide an air-conditioning system capable of performing heating air-conditioning process by an air-conditioning device with saving energy, with using low temperature exhaust heat from a water cooled cooling device as a main heat source.  <P>SOLUTION: Heat medium water for low temperature exhaust heat from the water cooled cooling device 7 is supplied to a preheating heat exchanger 2 and reheating heat exchanger 5 of the air-conditioning device 1 provided with a means regulating temperature and humidity. The heat medium water is circulated in the water cooled cooling device 7, the preheating heat exchanger 2, the reheating heat exchanger 5, a heat medium water cooling heat exchanger 8, and a circulating route 9 connecting the water cooled cooling device 7. The circulating route 9 is provided with a bypass passage 10 circulating the heat medium water with bypassing the preheating heat exchanger 2 and the reheating heat exchanger 5, a first heat medium water temperature measuring part 17 measuring temperature of the heat medium water downstream side of the preheating heat exchanger 2 and the reheating heat exchanger 5, a three way valve 11 regulating flow rate of the heat medium water circulating in the bypass passage 10 according to temperature at the first heat medium water temperature measuring part 17, a second heat medium water temperature measuring part 18 measuring temperature of the heat medium water downstream side of the heat medium water cooling heat exchanger 8, an electromagnetic two way valve 12 regulating flow rate of heat medium in a another system supplied to the heat medium cooling exchanger 8 according to temperature at the second heat medium water temperature measuring part 18.  <P>COPYRIGHT: (C)2003,JPO
Patent JP-2003206451-A (JP)
Title: Method of finishing both surfaces of readily damageable work piece by using thermally releasable and pressure- sensitive adhesive sheet
Inventor: ARIMITSU YUKIO
IPC: H01L21/304
Filed: 2002-01-15
Abstract: <P>PROBLEM TO BE SOLVED: To provide a method of finishing both surfaces of a readily damageable work piece that can finish both of the surfaces of the work piece with excellent accuracy.  <P>SOLUTION: In this method for finishing both surfaces of a work piece, two different type of thermally releasable adhesive sheets having different releasing temperatures from each other as follows: (A) the thermally releasable adhesive sheet having a lower releasing temperature (the low temperature release sheet) is applied to one face of the work piece, then (B) the other face is finished, (C) the thermally releasable adhesive sheet having a higher releasing temperature (the high temperature release sheet) is applied to the finished sheet, (D) a releasing temperature higher than the low temperature release sheet and lower than the high temperature release sheet is applied to release the low temperature release sheet, (E) the surface from which the low temperature release sheet is peeled off is finished and (F) finally a temperature higher than the release point of the high temperature release sheet is applied to peel off the higher sheet.  <P>COPYRIGHT: (C)2003,JPO
Patent JP-2003209237-A (JP)
Title: Solid-state detector
Inventor: SHIYOUJI TAKASHI
IPC: G01T1/24
Filed: 2002-01-16
Abstract: <P>PROBLEM TO BE SOLVED: To provide a solid-state detector 10 wherein the size of a first conductive layer 11 is smaller than that of a recording optical conductive layer 12, and which can improve the quality of an image by avoiding the influence of charge injection at the outer peripheral edge of the first conductive layer 11 on the recording layer 12.  <P>SOLUTION: A solid-state detector 10 includes a first conductive layer 11, a recording optical conductive layer 12, a charge transfer layer 13, a reading optical conductive layer 14, and a second conductive layer 15 laminated in this order. Angles 11b of the first conductive layer 11 are rounded into a substantially arc shape having a curvature radius of 3 mm or more. Further, a raised part 11a of a substantially arc sectional shape having a curvature radius of 1 mm or more, upwardly extended is formed along the outer peripheral edge of the first conductive layer 11.  <P>COPYRIGHT: (C)2003,JPO
Patent JP-2003207763-A (JP)
Title: Lcd driving circuit
Inventor: KONDO TAKESHI
IPC: G09G3/20
Filed: 2002-01-16
Abstract: <P>PROBLEM TO BE SOLVED: To provide an LCD (liquid crystal display) driving circuit capable of making the contrast of an LCD optimum over a wide temperature range.  <P>SOLUTION: This circuit is an LCD driving circuit which is provided with a feedback circuit 9 including a resistance voltage dividing circuit consisting of resistors 4, 5, 6 and the thermistor 7 connected in parallel with the resistor 6 and an LCD driving power source generating part 1 hanging an output voltage V0 to a direction compensating the output voltage of the feedback circuit 9, and moreover, the LCD driving circuit is provided with a temperature sensor 10 which is constituted by connecting resistors 11 to 15 in series between a power source V CC and the ground and by connecting a thermistor 16 in parallel with the resistor 11 and a voltage changeover part 20 which changes the output voltage of the feedback circuit 9 by changing over a plurality of voltage curves which are preliminarily set in accordance with a plurality of temperature ranges in response to the plurality of detected voltages of the temperature sensor part 10 and the driving circuit generates the output voltage V0 approximated to the optimum driving voltage characteristic of the LCD.  <P>COPYRIGHT: (C)2003,JPO
Patent JP-2003205859-A (JP)
Title: Pillar structure of automobile
Inventor: NAMIIRI ATSUSHI
IPC: B62D25/04
Filed: 2002-01-16
Abstract: <P>PROBLEM TO BE SOLVED: To provide a pillar structure of an automobile capable of simultaneously ensuring flexural rigidity and reduction of weight while avoiding that a wall thickness of the whole pillar main body which becomes an opened cross section is increased.  <P>SOLUTION: An external wall 21 of the pillar main body 20 which is opened inward in a vehicle room and becomes the opened cross section is formed in such a way that its wall thickness is larger than that of front and rear walls 22, 23. An outer side thickness increasing part 30 whose thickness increases gradually outward of the vehicle room from a substantially central part C1 in the direction of vehicle width is formed on inner sides of the front and rear walls 22, 23. Thickness increasing rigidity reinforcing parts 31 protruding from inward fringe parts 22b, 23b in the vehicle room over outward fringe parts 22c, 23c in the vehicle room are formed at an adequate interval in the longitudinal direction of a pillar on inner sides of the front and rear walls 22, 23 to increase flexural rigidity of the pillar main body 20 without increasing the wall thickness of the whole cross section of the pillar main body 20.  <P>COPYRIGHT: (C)2003,JPO
Patent JP-2003207110-A (JP)
Title: Mixed gas utilizing system
Inventor: MIYATA TADASHI
IPC: F01K25/00
Filed: 2002-01-17
Abstract: <P>PROBLEM TO BE SOLVED: To provide a mixed gas utilizing system, suppressing the exhaustion of materials which induces environmental pollution and effectively utilizing resources.  <P>SOLUTION: The mixed gas utilizing system comprises a mixed gas producer 11 for producing mixed gas consisting of hydrogen gas and oxygen gas by electrolyzing pure water, and a generator 12 and a waste disposer 13 for utilizing the mixed gas as a fuel. Exhaust gas to be exhausted after generation and waste disposal by the generator 12 and the waste disposer 13 is supplied to a water collection part 32 and cooled therein, and water is collected from the exhaust gas. The water collected by the water collection part 32 is purified by a water purifier 35 to give pure water which is then supplied to the mixed gas producer 11 and recycled as a raw material for producing the mixed gas.  <P>COPYRIGHT: (C)2003,JPO
Patent JP-2003211844-A (JP)
Title: Thermal recording material
Inventor: MINAMI KAZUMORI
IPC: B41M5/26
Filed: 2002-01-23
Abstract: <P>PROBLEM TO BE SOLVED: To provide a thermal recording material with the excellent image light stability of a thermal recording layer under exposure to light.  <P>SOLUTION: The thermal recording material is characterized in that it has at least one thermal recording layer that contains a chemical compound on a support represented by the following general formula (I) [R<SP>1</SP>-R<SP>6</SP>in the general formula (I) are provided in the specification].  <P>COPYRIGHT: (C)2003,JPO
Patent JP-2003213619-A (JP)
Title: Foundation superstructure integral bridge
Inventor: OKA SHUNZO
IPC: E01D11/00
Filed: 2002-01-23
Abstract: <P>PROBLEM TO BE SOLVED: To provide a foundation superstructure integral bridge capable of reducing the term of works and holding down the cost of construction.  <P>SOLUTION: In this bridge, a tower 3 is erected in a position rather closer to one side to an abutment 6, a plurality of cables 4 are stretched between the tower 3 and a bridge girder 2, and the bridge girder 2 is supported by the tower 3 through the cables 4. The bridge has a connecting structure in which the lower end of the tower 3 is fixed to the upper end of a pile 5 driven in the ground. In the case of a bridge where an arch 23 is constructed so that both end sides thereof intersect both end sides of a bridge girder 22, the bridge has a connecting structure where both ends of the arch 23 are respectively fixed to the upper ends of piles 25 driven in the ground.  <P>COPYRIGHT: (C)2003,JPO
Patent JP-2002238051-A (JP)
Title: Coding display method at image information coding
Inventor: ON KOTO
IPC: H04N19/50
Filed: 2002-01-25
Abstract: PROBLEM TO BE SOLVED: To provide a coding display method at image information coding that can extend a COD(code) field, so as to enable the use of coding in an error permissible mode in a channel in which an error exists and decrease a bit quantity more than that in an existing method under an environment, where the movement of an image is constant. SOLUTION: The COD field is extended to express it that both a (MV) motion vector and a coefficient of DCT(discrete cosine transform) are not coded, the MV and the coefficient of DCT are coded, and only the MV is coded and then the image is coded.
Patent JP-2003223460-A (JP)
Title: Information providing method and system, information provision supporting system, and computer program
Inventor: TERAOKA YUJI
IPC: G06F17/30
Filed: 2002-01-29
Abstract: <P>PROBLEM TO BE SOLVED: To provide an information providing system capable of efficiently performing the search of information by specifying the searching keyword correctly even when different expressions are included in requesting the information.  <P>SOLUTION: Candidate words likely to be given by users (no ink fed, lines thin, etc.), are held in an information provision supporting server 2 in linkage with any associate searching keywords (clogging etc.). When any inquiry is placed from an operator terminal 4 manipulated by the operator talking to the user or a user terminal 6, the information provision supporting server 2 decides the searching keyword to suit the inquiry item through the candidate word, and this is transmitted to an information providing server 1. The information providing server 1 searches the electronic information on the basis of the determined searching keyword and transmits it to the terminal of the inquirer.  <P>COPYRIGHT: (C)2003,JPO
Patent JP-2003224335-A (JP)
Title: Resin molded circuit board
Inventor: HAYASHI HIROKAZU
IPC: H05K1/02
Filed: 2002-01-30
Abstract: <P>PROBLEM TO BE SOLVED: To provide a resin molded circuit board in which soldering can be carried out by means of an automatic soldering device for printed wiring board without using a jig.  <P>SOLUTION: In the resin molded circuit board 1 comprising a conductive plate 2 for forming an electric circuit sealed with molding resin 3, thin parts 32 are formed at two opposite sides of the molding resin 3. Reinforcing ribs 33 and 34 are formed in the molding resin 3 depending on the resin material being used.  <P>COPYRIGHT: (C)2003,JPO
Patent JP-2003224648-A (JP)
Title: Portable communication terminal device
Inventor: MIYAZAKI TETSUYA
IPC: H04M1/21
Filed: 2002-01-31
Abstract: <P>PROBLEM TO BE SOLVED: To reduce the thickness of a card loaded type portable telephone.  <P>SOLUTION: An information-card-7 loaded type portable telephone set is provided with a fixed hook piece 4 at an opening edge of a shallow recessed part 33 of a battery fitting surface 32 where a card 7 is stored on one end side of the card and a slide type movable hook piece 5 formed of a thin metal plate on the other end side and the top surface of the card 7 is hooked and held with both the hook pieces 4 and 5. The hook pieces 4 and 5 hook the card 7 nearby both the ends while slightly covering end parts of the card 7, so rigidity which is large enough to prevent the card from jumping out of the recessed part 33 even when the hook pieces 4 and 5 are thin can be obtained.  <P>COPYRIGHT: (C)2003,JPO
Patent JP-2003226355-A (JP)
Title: Coupling member between machines
Inventor: OHATA YUKIO
IPC: G03G15/00
Filed: 2002-01-31
Abstract: <P>PROBLEM TO BE SOLVED: To provide a coupling member which can quickly couple a plurality of machines with one another via an operate-to-move handle provided thereon by a simple operation, and also can appropriately prevent interference between the coupled machines even during transportation by a truck or the like.  <P>SOLUTION: The coupling member 17 comprises a first coupling 12, a first block 5, a coupling member body 6, a second block 10 and a second coupling 14 which are coupled in this sequence along a lengthwise direction. The first coupling 12 can be engaged with/disengaged from a handle provided on a first image forming device, and the second coupling 14 can be engaged with/ disengaged from a handle provided on a second image forming device, respectively. The first and the second blocks 5 and 10 can be inserted into/removed from the coupling member body 6, wherein these blocks can be screw-coupled with each other while being inserted into the body 6.  <P>COPYRIGHT: (C)2003,JPO
Patent JP-2003226396-A (JP)
Title: Component supply tray
Inventor: OKAMOTO SOICHI
IPC: B65D85/86
Filed: 2002-02-01
Abstract: <P>PROBLEM TO BE SOLVED: To realize a component supply tray which, even after shrunk after molded, prevents held components from being moved out of their positions.  <P>SOLUTION: A first fittable portion 15b of a cylindrical shape on the support side and second fittable portions 15c to 15e of a cylindrical shape on the support side project from the four corners of a support 11 made of a foam resin. A first fittable portion 34 of a cylindrical shape on the main body side which fits on the first fittable portion 15b on the support side and second fittable portion 35 to 37 of a long hole shape on the main body side which fit on the second fittable portions 15c to 15e on the support side project from the four corners of a tray main body 30 supported by the support 11, and the fittable portions are fitted on the corresponding ones. When the support 11 shrinks after being molded, the second fittable portions 15c to 15e on the support side deform along the insides, long holes, of the second fittable portions 35 to 37 on the main body side toward the first fittable portion 15b on the support side. However, since the tray main body 30 does not shrink, components held by a holding portion 32 are not moved out of their positions.  <P>COPYRIGHT: (C)2003,JPO
Patent JP-2002327316-A (JP)
Title: Sportswear
Inventor: SATO MASANOBU
IPC: D04B1/16
Filed: 2002-02-04
Abstract: PROBLEM TO BE SOLVED: To obtain a sportswear having a high heat retaining effect by using water molecule adsorption performances. SOLUTION: This sportswear comprises a knitted fabric having water molecule adsorption and heat generation performances, has >=5 heat generation energy index, <=0.12 W/cm<2> contact warm-cold sensitivity (qmax) of at least the face of the knitted fabric to be brought into contact with the skin, <=5 seconds drip water absorption time, and >=0.29 MPa bursting strength of the knitted fabric.
Patent JP-2003227475-A (JP)
Title: Internal gear pump
Inventor: ITO TAKASHI
IPC: F04C2/10
Filed: 2002-02-04
Abstract: <P>PROBLEM TO BE SOLVED: To provide an internal gear pump having reduced variation of a clearance between an outer rotor and a case.  <P>SOLUTION: In this internal gear pump comprising the outer rotor 1 having an internal gear part 1a on its inner periphery, an inner rotor 2 having an external gear part 2a engaged with the internal gear 1a of the outer rotor 1, and the case 3 for accommodating the outer rotor 1 and the inner rotor 2 rotatably in a state of being eccentric to each other, the outer rotor 1 comprises a rotor body 5 having the internal gear part 1a, and a gutter ring 6 fitted to an outer periphery of the rotor body 5, and the gutter ring 6 is made of a material having a linear expansion coefficient smaller than that of the rotor body 5.  <P>COPYRIGHT: (C)2003,JPO