baber/WOPTO huggingface dataset:
Patent JP-2011526237-A (JP)
Title: 水素生成方法及び装置
IPC: C01B3/56
Filed: 2009-06-10
Abstract: 炭素含有装入原料(１)を水蒸気(２)と共に筒状反応室(Ｚ)へ軸方向に導入することにより装入原料を水蒸気改質によって転化し、生成された水素(４)を少なくとも一部の区画が水素選択透過性とされた仕切壁(Ｔ)を通して反応室から連続的に導出し、反応室(Ｚ)内の圧力よりも低圧で且つ外部圧力よりも高圧の状態で純度の高められた水素製品流(５)を取り出す水素生成方法及び装置。水素選択透過性の複数の区画を、各区画のそれぞれ全面に亘って反応室(Ｚ)側と水素導出側(Ｗ)との間で水素分圧勾配が生じるように配置した仕切壁(Ｔ)を用いる。
Patent JP-2011530892-A (JP)
Title: Ｒｎｔｉ依存スクランブル系列初期化
IPC: H04W24/04
Filed: 2009-08-07
Abstract: ワイヤレス通信環境においてスクランブル系列発生を初期化するシステムおよび方法について説明する。（たとえば、各サブフレームの開始において、．．．）少なくとも部分的に無線ネットワーク一時識別子（ＲＮＴＩ）のタイプに応じてスクランブル系列発生を初期化することができる。さらに、スクランブル系列発生の初期化のために利用されるＲＮＴＩのタイプは、送信タイプ（たとえば、送信が、システム情報、ページング、ランダムアクセス応答、ランダムアクセスプロシージャのスケジュールされた送信または競合解消メッセージ、ＳＰＳトラフィック、規則的ユニキャストトラフィック、．．．に関係するかどうか）に対応することができる。その上、データチャネル（たとえば、物理ダウンリンク共有チャネル（ＰＤＳＣＨ）、物理アップリンク共有チャネル（ＰＵＳＣＨ）、．．．）を介した送信のためにデータをスクランブルするために、スクランブル系列を活用することができる。さらに、受信ワイヤレス通信装置は、送信タイプに対応するＲＮＴＩのタイプに基づいて同様に産出された逆スクランブル系列を利用することができる。
Patent JP-2012501032-A (JP)
Title: 体重管理の方法
IPC: G16H20/30
Filed: 2009-08-17
Abstract: ユーザの体重を管理する方法が開示される。この方法は、ａ）上記ユーザにより消費されるエネルギーを得るステップと、ｂ）上記ユーザの体重管理をモデル化し、達成されることができる目標体重と上記目標体重を実現するのに必要とされる目標時間期間とを、上記ユーザの現在の体重と上記得られた消費エネルギーとに基づき、予測するステップと、ｃ）上記モデルを用いて、上記ユーザが所定の時間期間の間続けなければならない体重管理計画を考案するステップと、ｄ）上記考案された体重管理計画を用いて、上記所定の時間期間の間上記ユーザをコーチするステップと、ｅ）上記所定の時間期間の終わりに進捗をモニタし、上記ユーザが現在上記目標時間期間のどこにいるかに基づき、達成されるべき上記体重に対して上記ユーザの体重が異なっているかをチェックし、異なっている場合、ステップａ、ステップｂ、ステップｃ及びステップｄを繰り返すステップとを有する。
Patent JP-2012506779-A (JP)
IPC: B23F9/14
Filed: 2009-10-09
Abstract: The front cutter head method involves loading a universal front cutter head (240) in a configuration with multiple cutter groups, which correspond to number of threads. A bevel gear is manufactured in the continuous partial method under insertion of the universal front cutter head in a configuration. An independent claim is included for a front cutter head for manufacturing different bevel gears.
Patent JP-2012507361-A (JP)
Title: 傾斜するビームラインの移動機構
IPC: A61N5/10
Filed: 2009-10-28
Abstract: 放射線療法用の粒子照射器の位置決め装置が提供される。位置決め装置は、第１および第２のアーチ状の支持フレーム、装着キャリッジ、ならびに駆動部を含む。第１および第２のアーチ状の支持フレームは、それぞれ、アーチ状のキャリッジガイド経路を画成する駆動トラック部を含む。装着キャリッジは、放射線療法用の粒子照射器を支持するように構成される。装着キャリッジは、支持フレームに装着および支持される。装着キャリッジは、駆動トラック部に接続可能に設けられ、キャリッジガイド経路に沿って移動可能に設けられる。また、装着キャリッジは駆動部を含む。駆動部は、駆動トラック部ならびにキャリッジガイド経路に沿って装着キャリッジを駆動するために、駆動トラック部と係合する。
Patent JP-2012507604-A (JP)
Title: １，１，１，２，３−ペンタクロロプロパン及びフッ化水素の共沸混合物様組成物
IPC: C11D7/08
Filed: 2009-10-29
Abstract: １，１，１，２，３−ペンタクロロプロパン及びフッ化水素から実質的に構成される共沸混合物様組成物、並びにかかる共沸混合物様組成物に関係する方法を提供する。 【選択図】図１
Patent JP-2012508067-A (JP)
Title: 前立腺組織の治療のためのシステム及び方法
IPC: A61B17/00
Filed: 2009-11-06
Abstract: 複数の特徴を含んだ前立腺治療システムが提供される。前記前立腺治療システムの１つの特徴は、経尿道的に前立腺葉に接近できることである。前記前立腺治療システムの別の特徴は、前立腺組織を切除するために、前記前立腺の中に凝縮性蒸気を供給できることである。前記前立腺治療システムの使用と関連した方法も包含される。 【選択図】図１
Patent JP-2012509838-A (JP)
Title: シート材料から複数の造形品を形成するための方法および装置
IPC: C03C21/00
Filed: 2008-11-26
Abstract: 本発明は、複数の造形品を作製するための方法および装置に関する。この装置は、少なくとも１個の減圧ポート（１０８）と、ガラスを主体とする材料からなる１枚のシート（１３０）を受容するための一つの表面（１２４）とを有する１個の容器（１０２）を備えている。容器（１０２）内には少なくとも１個の雄型（１１６）が支持されており、この少なくとも１個の雄型（１１６）は、１個の造形品の内側を画成する輪郭を備えた外側表面（１１８）を有する。上記容器と上記少なくとも１個の雄型との間には一つの開放容積（１１５）が画成され、この開放容積は上記減圧ポートに連通している。上記方法は、複数の雄型（１１６）からなるアレーを提供し、かつ上記複数の雄型の表面（１１８）上に上記シート（１３０）を垂れ下がらせて、複数の垂れ下がりウェブによって相互連結された複数の造形品からなるアレーを形成し、上記複数のウェブは、上記複数の造形品からなるアレーの基部の下方へ延出している。
Patent JP-2012510539-A (JP)
Title: トルエンおよびスチレンに由来するテロマー混合物の臭素化
IPC: C08K5/03
Filed: 2009-11-30
Abstract: 本発明は、臭素化難燃剤の調製に望ましい基材である、新規で有用なトルエン、およびスチレンに由来するテロマー分布物に関する。
Patent JP-2012513184-A (JP)
Title: 軸方向磁束モータおよびジェネレータアセンブリ
IPC: H02K19/22
Filed: 2009-12-16
Abstract: 軸方向磁束モータアセンブリは、各ディスク２０ａ，２０ｂの間で、回転を許容する隙間があるように交互に配置された第一ディスク２０ａと第二ディスク２０ｂのスタックを含む。第一ディスク２０ａは、回転可能な軸に取り付けられ、一方、第二ディスク２０ｂは適切な位置に固定される。第一および第二ディスク２０ａ，２０ｂは、それぞれ、ディスク２０ａ，２０ｂの表面に配置された磁性体セクタ２００を含み、セクタ２００のそれぞれの間には、電流を伝えるための導電路２０１の放射状に広がる導体２０２がある。第一および第二ディスク上の磁性体セクタ２００は、一定の角ピッチで配置されるが、第一ディスクの上の磁性体セクタのピッチは、第二ディスクのピッチと同一、もしくは同一ではない。 【選択図】図７
Patent JP-2012517978-A (JP)
Title: ＧｌｙＴ１阻害剤としてのアミン又はアミノアルコール
IPC: C07D305/06
Filed: 2010-02-16
Abstract: 本発明は、精神病、記憶及び学習機能障害、統合失調症、認知症、注意欠陥障害又はアルツハイマー病の処置のための医薬の製造のための、式（Ｉ）［式中、置換基は詳細な説明及び特許請求の範囲に記載されている］の化合物の使用に関する。
Patent JP-2012519211-A (JP)
Title: サーチュイン調節化合物としての８−置換キノリンおよび関連類似体
IPC: A61K31/47
Filed: 2010-03-02
Abstract: 新規のサーチュイン調節化合物およびその使用方法が本明細書で提供されている。サーチュイン調節化合物は、細胞の寿命を増加させるために、ならびに例えば、老化もしくはストレスと関連する疾患もしくは障害、糖尿病、肥満、神経変性疾患、心臓血管疾患、血液凝固障害、炎症、癌、および／または紅潮ならびにミトコンドリア活性の増加により利益を得る疾患または障害をはじめとする、多種多様な疾患および障害を治療および／または予防するために使用し得る。別の治療剤と組み合わせたサーチュイン調節化合物を含む組成物も提供される。
Patent JP-2012519345-A (JP)
Title: ファイル格納システムにおけるデータ圧縮
IPC: G06F12/00
Filed: 2010-03-05
Abstract: 本発明の実施形態は、ファイルシステムにおけるファイルの圧縮を提供する。本発明の実施形態において、ファイルは論理的にチャンクに分割され、各チャンクは圧縮され、その結果、ファイルの一部分を含む要求は、該部分に対応する圧縮されたチャンクのみを読み出して解凍することによって、満たされ得る。マッピングメタデータは、各チャンクをその対応する圧縮されたチャンクにマッピングし、あるいは、ファイルの固定サイズ範囲を圧縮されたファイルにおける対応する圧縮されたチャンクにマッピングする。
Patent JP-2012519826-A (JP)
Title: デジタル狭帯域、波長特定式調理、硬化、食品処理、および加工のための方法およびシステム
IPC: A23L5/30
Filed: 2010-03-05
Abstract: 幅広くさまざまな処理の目的で食品アイテムへと選択された熱赤外（ＩＲ）波長の放射またはエネルギーを直接注入するためのシステムが提供される。そのような目的として、加熱あるいは食品の温度の上昇または維持を挙げることができる。このシステムは、特定的に選択された波長での照射の能力や、放射のパルス化または注入の能力が必要とされ、あるいはそのような能力が有利である作業に特に適用可能である。このシステムは、より高い速度および対象との接触がない環境で機能するときに、特に好都合である。
Patent JP-2013143399-A (JP)
Title: Light-emitting diode lamp
Inventor: NOZAKI HITOSHI
IPC: F21V29/00
Filed: 2012-01-06
Abstract: PROBLEM TO BE SOLVED: To provide a light-emitting diode lamp having a wide range and a low loss of light emitted from the light-emitting diode.SOLUTION: A light-emitting diode lamp 10 includes: a substrate 40 having a principal surface perpendicular to a center axis line of the light-emitting diode 10; a light-emitting diode 60 arranged at a position spaced at a predetermined distance from a position through which a center axis line of one principal surface of the substrate 40 passes; and a columnar reflecting member 70 arranged at the position which the center axis line of the one principal surface of the substrate 40 passes, having a portion positioned in an illumination range of light from the light-emitting diode, and having a reflecting surface reflecting light. The reflecting surface of the reflecting member 70 includes a surface of a rotation body formed by laterally rotating a curve of a projection using a center axis line as a center.
Patent JP-2013142719-A (JP)
Title: Exposure device and exposed material manufacturing method
Inventor: HASHIMOTO KAZUSHIGE
IPC: G03F7/20
Filed: 2012-01-06
Abstract: PROBLEM TO BE SOLVED: To more accurately specify the relative positions of an exposure mask and a target exposure material without using a complex, expensive mechanism, and to eliminate delay of operation time using an exposure device.SOLUTION: The exposure device according to the present invention comprises: an imaging section configured to image at least part of a first aligning mark and a second aligning mark, which are imaged on an exposure mask via a micro-lens array and to move in a predetermined direction so as to prevent interference with exposure to a target exposure material after imaging; an aligning control section configured to align the target exposure material and exposure mask on the basis of position information on first and second aligning marks; and an exposure start timing control section that starts emission of exposure light from a light source before the movement of the imaging section finishes.
Patent JP-2012100529-A (JP)
Title: Power conversion device
Inventor: SHOJI HIROYUKI
IPC: H02M3/28
Filed: 2012-01-10
Abstract: PROBLEM TO BE SOLVED: To provide a power conversion device capable of controlling an output power while improving a power factor of an input current, and of reducing a switching loss related to power conversion.SOLUTION: A power conversion device has: a rectification arm consisting of first and second diodes D11 and D12 connected in series in forward polarity; a first switch arm consisting of first and second switching circuits connected in series, the first and second switching circuits consisting of semiconductor switching elements Q1 and Q2 and diodes D1 and D2 connected in reverse parallel, respectively; a second switch arm consisting of a third switching circuit and a first capacitor C1 connected in series, the third switching circuit consisting of a semiconductor switching element Q3 and a diode D3 connected in reverse parallel; and an output circuit having a series circuit of a second capacitor C2 and a second inductor L2. An alternate-current power supply AC is connected between a node of the first diode D11 and the second diode D12 in the rectification arm and a node of the first semiconductor switching element Q1 and the second semiconductor switching element Q2 in the first switch arm via a first inductor L1.
Patent JP-2013141439-A (JP)
Title: Automatic and immediate blending machine
Inventor: LIU YUNG SUNG
IPC: A23L27/00
Filed: 2012-01-11
Abstract: PROBLEM TO BE SOLVED: To provide a structure of an automatic and immediate blending machine, blending amounts of seasonings immediately and automatically.SOLUTION: The structure of the automatic and immediate blending machine mainly includes a seasoning storing cabinet, a control unit and a base. A plurality of storing grids are arranged in the seasoning storing cabinet to respectively store the seasonings in the grids. When a command is input by the control unit, corresponding storing grids allow the filled seasonings to fall by predetermined amounts. By the properties of immediately blending the seasonings, consistency in the amounts of the seasonings is obtained as well as the time for measuring the amounts of the seasonings is saved, whereby the blending machine is used conveniently, and human-induced incongruity in taste is dissolved.
Patent JP-2012155714-A (JP)
Title: Ordering document content
Inventor: PHILIP ANDREW MANSFIELD
IPC: G06T11/60
Filed: 2012-01-17
Abstract: PROBLEM TO BE SOLVED: To provide a new method for organizing a set of primitive areas into an ordered list, for a page that has been decomposed into the set of primitive areas.SOLUTION: For a page that has been decomposed into a set of primitive areas, a method for organizing the set of primitive areas into an ordered list is disclosed. The primitive areas in the ordered list are initially sorted using start point order relation ordering, which compares the start points of the primitive areas in the coordinate system of the page. The ordering of the primitive areas in the ordered list are then refined by using contextual order relation ordering, which compares primitive areas against each other according to coordinate systems local to the primitive areas being compared. A new ordered list is then created by transposing primitive areas that are incorrectly ordered according to contextual order relation ordering.
Patent JP-2013147956-A (JP)
Title: Valve gear of engine
Inventor: OGAWA TAKASHI
IPC: F02D13/02
Filed: 2012-01-17
Abstract: PROBLEM TO BE SOLVED: To provide a valve gear of an engine capable of suitably advancing valve closing timing of an intake valve in a transient operation.SOLUTION: A valve gear 1 of an engine is provided with a variable valve gear mechanism 57 configured so as to have an electric cam speed variable mechanism making the valve characteristics of an intake valve 54 variable with a constant lifting amount as the variable valve gear mechanism capable of individually changing the valve opening timing and valve closing timing of the intake valve 54 provided in a combustion chamber E of the engine 50 with a super charger 30. The closing timing of the intake valve 54 is advanced at least by the cam speed variable mechanism in a transient operation of the engine 50. The variable valve gear mechanism 57 is made as a variable valve gear mechanism capable of individually changing the valve opening timing and the valve closing timing of the intake valve 54 by being configured so as to have a hydraulic phase variable mechanism capable of changing the valve timing of the intake valve 54 specifically.
Patent JP-2013146310-A (JP)
Title: Self-propelled electronic device
Inventor: TSUBOI MASATOMO
IPC: A47L9/28
Filed: 2012-01-17
Abstract: PROBLEM TO BE SOLVED: To provide a self-propelled electronic device that quickly and specifically notifies a user that the device is exposed to a dangerous temperature environment if the situation occurs during self-propelling operation.SOLUTION: A self-propelled vacuum cleaner 1 includes: a temperature measuring unit 63 that measures the surrounding temperature during self-propelling operation; a temperature determination unit 521 that determines whether or not the measured temperature exceeds a set value; and an abnormal-temperature notification unit 522 that notifies abnormal temperature information, indicating that the measured temperature exceeds the set value, to the outside if it is determined that the measured temperature exceeds the set value.
Patent JP-2013007994-A (JP)
Title: Optical scanner and image forming apparatus
Inventor: SERIZAWA KEIICHI
IPC: G02B26/10
Filed: 2012-01-24
Abstract: PROBLEM TO BE SOLVED: To provide an optical scanner capable of reusing optical system components and suppressing the increase of a component management cost and a manufacturing cost and to provide an image forming apparatus.SOLUTION: An intermediate member 120 as a holding member is like a ring and has such a shape that one place of the intermediate member 120 is cut. A housing adhesion part 121 projected from the outer circumference of the intermediate member 120 is provided at three places at an equal interval on the outer circumferential surface of the intermediate member 120 and projection parts 124 are provided at three places at an equal interval in a circumferential direction on the inner circumferential surface of the intermediate member 120. For fixing a collimator lens 52 to the intermediate member 120, an end 125 is pushed out to elastically deform the intermediate member and extend the inner diameter of the intermediate member 120 and the collimator lens 52 is inserted into the intermediate member 120 whose inner diameter is extended. When the pushing out of the end 125 is released, the projection parts 124 formed in the inner circumferential surface of the intermediate member 120 come into contact with the edge surface of the collimator lens, so as to fix the collimator lens 52 in a holding manner to the intermediate member 120 at three points.
Patent JP-2013161591-A (JP)
Title: Light source lighting device and illuminating device
Inventor: NONAKA TAKAFUMI
IPC: H05B37/02
Filed: 2012-02-03
Abstract: PROBLEM TO BE SOLVED: To automatically determine which one of at least two kinds of light-emitting element groups is connected in one power supply circuit while considering influences of a temperature of the light-emitting element group at the determination.SOLUTION: In a power supply circuit 100, a microcomputer 151 stores a table of relation between the number of LED lamps of a light-emitting element group 802, a degree of dimming, and a current value outputted from a power conversion circuit 120, for each number of lamps. The microcomputer 151, in a state that a constant current of 15 mA is outputted from the power conversion circuit 120, receives an applied voltage to the light-emitting element group 802, which is detected by a voltage detection circuit 123, compares the received applied voltage with a number-of-lamps determination voltage in a memory 152, determines the number of LED lamps of the light-emitting element group 802, and selects the table depending on the determination result. The microcomputer 151, at the determination of the number of LED lamps, corrects the number-of-lamps determination voltage on the basis of temperature information detected by a temperature detection circuit 200, and then compares the detected applied voltage with the number-of-lamps determination voltage in the memory 152.
Patent JP-2012095357-A (JP)
Title: Method and apparatus for delivery of targeted video programming
Inventor: ISMAIL LABEEB K
IPC: H04N7/173
Filed: 2012-02-03
Abstract: PROBLEM TO BE SOLVED: To deliver customized linear video programming to each of a plurality of individual viewers.SOLUTION: A system residing preferably in a television set-top box monitors the television watching habits of one or more viewers and creates one or more profiles for each viewer descriptive of various characteristics of each viewer, including television watching preferences and demographics. The set-top box is able to select among various available video programming segments to create customized and/or targeted video programs for delivery to a specific viewer of the plurality of viewers as a linear program. The customized linear video programs may include targeted content, advertising, and other video programming.
Patent JP-2013161949-A (JP)
Title: Bus bar
Inventor: NAGAI YUKO
IPC: H05K7/06
Filed: 2012-02-06
Abstract: PROBLEM TO BE SOLVED: To provide a bus bar capable of improving workability when it is mounted to a substrate.SOLUTION: A bus bar (10) having a bus bar pin (11) mounted to a circuit board (40) comprises: a base section (20) arranged along the circuit board (40) and supporting the bus bar pin (11); and a set of column sections (25) formed on both ends of the base section (20), holding the circuit board (40) and fixing the bus bar pin (11) to the circuit board (40).
Patent JP-2013160679-A (JP)
Title: Car navigation system
Inventor: NOMURA TOMOO
IPC: G01C21/34
Filed: 2012-02-07
Abstract: PROBLEM TO BE SOLVED: To provide appropriate guidance without having to identify whether a host vehicle is traveling on a special lane or a general lane using a special device.SOLUTION: A car navigation system, when it is set up to use special lanes, executes a route guidance function by computing a first route assuming that the special lanes are primarily used by a driver and by providing route guidance accordingly. When determination means determines that a host vehicle is traveling in a parallel route section where a special lane and a general lane are next to each other during route guidance, second route computation means computes an optimum second route to a destination assuming that the host vehicle is traveling on the general lane, and second route guidance means generates a second guidance phrase starting with a phrase "If you are not driving on a special lane" at a second guidance point.
Patent JP-2013161472-A (JP)
Title: Apparatus, method, and program for estimating difficulty of question and knowledge level of user in question/answer service
Inventor: MORIOKA REISHI
IPC: G06F13/00
Filed: 2012-02-09
Abstract: PROBLEM TO BE SOLVED: To provide an estimation apparatus, method, and program capable of identifying a user having a high probability of solving an unsolved question.SOLUTION: A knowledge accumulation server 2 causes a difficulty estimation unit 14 to refer to a user DB 21 and an answer DB 23, to totalize the number of users submitting an answer for each of a plurality of questions, according to a knowledge level, to estimate difficulty on the basis of the knowledge level in which the number of users is the most in the totalization result, and to update the difficulty of a question DB 22. Further, the knowledge accumulation server 2 causes a difficulty level estimation unit 15 to refer to the question DB 22 and the answer DB 23, to estimate the knowledge level of users who submit a selected answer to a question the difficulty of which is set, on the basis of the difficulty, and to update the knowledge level of the users in the user DB 21.
Patent JP-2013168724-A (JP)
Title: Imaging apparatus and image processing program
Inventor: ABE KOICHI
IPC: H04N5/351
Filed: 2012-02-14
Abstract: PROBLEM TO BE SOLVED: To reduce thermal noise while ensuring a dynamic range.SOLUTION: An imaging apparatus comprises: a calculation unit which calculates at least two types of photographing conditions different from each other, on the basis of the result of photometry; an imaging unit which generates plural sheets of images by repeating imaging of a field under a first photographing condition calculated by the calculation unit and generates plural sheets of images by imaging the field under a second photographing condition different from the first photographing condition; a first synthesis unit which generates a first synthetic image by noise reduction processing by synthesizing the plural sheets of images generated in accordance with the first photographing condition; a second synthesis unit which generates a second synthetic image by noise reduction processing by synthesizing the plural sheets of images generated in accordance with the second photographing condition; a third synthesis unit which generates a third synthetic image by dynamic range expansion processing by synthesizing the first synthetic image and the second synthetic image; and a recording unit which records the third synthetic image.
Patent JP-2013166110-A (JP)
Title: Filter cloth washing apparatus of filter press
Inventor: GOTO TETSUAKI
IPC: B01D25/12
Filed: 2012-02-15
Abstract: PROBLEM TO BE SOLVED: To provide a filter cloth washing apparatus of a filter press, whose malfunction can be reduced even in a strong corrosive environment.SOLUTION: A filter cloth washing apparatus includes a traveling frame 10 installed above a filter press F and a traveling cart 20 traveling on the traveling frame 10. A chain rail 11 is laid on the traveling frame 10 and the traveling cart 20 includes a sprocket 23 engaged with the chain rail 11, a travel driving means 30 causing the sprocket 23 to be rotationally driven, washing pipes 24a, 24b ejecting washing water; and an vertically driving means 40 for ascending/descending the washing pipes 24a, 24b. Since the chain rail 11 is laid on the traveling frame 10, there is no possibility of expansion even when a strong corrosive substance sticks thereto and thereby displacement of the traveling cart 20 can be prevented. Consequently, malfunction can be reduced even in a strong corrosive environment.
Patent JP-2013167190-A (JP)
Title: Fuel injection device of internal combustion engine
Inventor: SAITO TORU
IPC: F02M53/04
Filed: 2012-02-15
Abstract: PROBLEM TO BE SOLVED: To eliminate harmful effects caused by steam of fuel entering a fuel pump 11, while cooling a nozzle 36a of an injector 36 for intake-port injection with the fuel after a stop of an engine 1 to allow formation of deposits to be effectively prevented.SOLUTION: A fuel injection device includes an injector 36 and a fuel pump 11 that supplies fuel to the injector via a fuel supply pipe 10. The fuel injection device includes: a cooling passage 37a that communicates with the fuel supply pipe 10 and cools a nozzle 36a of the injector 36 with circulating fuel; a return pipe 14 for returning fuel to a side of the fuel pump 11; and an electromagnetic valve 15 (on-off valve) that is openable and closable between the fuel supply pipe 10 and the cooling passage 37a. The fuel pump 11 is activated, and the electromagnetic valve 15 is opened to circulate fuel to the cooling passage 37a, during a predetermined period after a stop of an engine. After the predetermined period elapses, the fuel pump 11 is stopped and the electromagnetic valve 15 is closed.