baber/WOPTO huggingface dataset:
Patent JP-2007513375-A (JP)
IPC: G09F9/305
Filed: 2004-10-22
Abstract: A display comprises a display device having an image output surface at which an image is displayed as a spaced array of pixel elements, a light transmitting element having a viewing surface, the light transmitting element arranged to receive light from the display device and display the received light on the viewing surface, the light transmitting element having a polarising layer arranged in an optical path between the display device and the viewing surface, wherein the polarising layer is arranged to attenuate unpolarised ambient light received from outside the display while substantially transmitting polarised light received from the display device. The display is a tiled display and the scanning direction for each panel in a column alternates between up and down.
Patent JP-2007517556-A (JP)
Title: カテーテルを取り扱うための器具
IPC: A61M1/34
Filed: 2004-12-02
Abstract: 【課題】  より容易な操作が可能な器具を開発する。 【解決手段】  本発明は、カテーテルを取り扱うための器具であって、伸びたバルブボディを有し、レバーアームが、バネ要素を用いてプレストレスを与えられるとともにバルブボディに旋回可能に載置されていて、バネ要素のプレストレス力に抗して第１端位置から第２端位置へ旋回可能になっており、圧力ピストンが、バルブボディに受容されており、レバーアームが第２端位置の方へ移動されるとき、バルブボディのシール要素を開放する目的で、レバーアームを用いて長手方向に移動されることが可能であり、キャッチ機構が、レバーアームを少なくとも１つのキャッチ位置で保持する目的で、拘束装置及びそれと相互作用するキャッチ舌を有する装置に関する。 【選択図】  図１
Patent JP-2007517613-A (JP)
Title: 押し込み変位洗浄注射器
IPC: A61M5/178
Filed: 2005-01-07
Abstract: 洗浄注射器アセンブリ(２０)は、流体を保持するためのチャンバ(２５)を画成する内面(２３)を持った円筒状の側壁(２２)と、開口基端部(２７)と、基端側に延在してチャンバに対して流体が連通する通路を持った細長いチップ(３１)を含む末端部(２８)とを含むバレル(２１)を具えている。プランジャ(３７)は、その末端部にストッパ(４１)を持った細長い本体部(３８)を含んでいる。チャンバから流体を押し出すため、ストッパはバレルの内面に対して流体密封状態で摺動可能に配されている。ストッパの末端部(６１)は、流体がプランジャの動きにより通路を介して押し出される間つぶれ、プランジャの移動が止まった後、流体が通路を通って押し出され続けるように形成されている。
Patent JP-2007525124-A (JP)
Title: メディアアクセスコントロールアドレスの一部としてのデジタルエンハンスされたコードレス電話
IPC: H04M1/72505
Filed: 2005-02-03
Abstract: ＤＥＣＴ（Ｄｉｇｉｔａｌ  Ｅｎｈａｎｃｅｄ  Ｃｏｒｄｌｅｓｓ  Ｔｅｌｅｃｏｍｍｕｎｉｃａｔｉｏｎ）を用いて通信するＷＭＴＳ（Ｗｉｒｅｌｅｓｓ  Ｍｅｄｉｃａｌ  Ｔｅｌｅｍｅｔｒｙ  Ｄｅｖｉｃｅ）のＰＭＩＤ（Ｐｏｒｔａｂｌｅ  Ｐａｒｔ  Ｉｄｅｎｔｉｔｙ）を生成する方法であって、（ａ）ＰＰ（Ｐｏｒｔａｂｌｅ  Ｐａｒｔ）又はＦＰ（Ｆｉｘｅｄ  Ｐａｒｔ）アプリケーションを有するＤＥＣＴスタックモジュール２００を提供するステップと、（ｂ）ＰＰの２０ビットを抽出し、前記ＤＥＣＴのメモリマップにＤＥＣＴ  ＰＭＩＤとして格納するステップと、（ｃ）ＰＰのイーサネット（登録商標）割り当てされたＭＡＣアドレスの下位２０ビットからＰＰのｉｄを計算し、ＤＥＣＴ  ＰＭＩＤの２０ビットが、イーサネット（登録商標）ＭＡＣアドレスの下位２０ビットと１：１にマップされるように、ＤＥＣＴスタックのメモリマップに同一のものを格納するステップとを有し、前記ＤＥＣＴスタックは、前記ＰＰと前記ＦＰとの間の接続を３２ビット数として表し、前記ＰＰは２０ビットを有し、前記ＦＰは１２ビットを有することを特徴とする方法。ＤＥＣＴスタック又はその外部のメモリマップは、マッピング関数の結果を格納する。
Patent JP-2007521825-A (JP)
IPC: C12N1/14
Filed: 2005-02-08
Abstract: A culture medium for filamentary fungi comprising at least one carbon source chosen from the group consisting of molasses, malt extract and sucrose and at least one organic nitrogen source chosen from yeast extract and corn steep liquor is described; a method for producing filamentary fungi, in particular nematophagus fungi on an industrial scale, comprising the step of seeding conidia of such fungi in the aforementioned culture medium and maintaining such a culture medium at a temperature of 23-30 DEG C for a time of 5-10 days to determine the reproduction and growth of the fungi is also described.
Patent JP-2007522602-A (JP)
Title: 非スイッチング妨害前および妨害後補償パルス
IPC: G11C11/22
Filed: 2005-02-07
Abstract: ヒステリシスを示す強誘電またはエレクトレット薄膜分極可能メモリ材料、特に、強誘電またはエレクトレットポリマー薄膜の形のメモリセルと、デバイス内のワード線電極を形成する平行電極の第１セットおよびデバイス内のビット線を形成する平行電極の第２セットとを含むパッシブ・マトリクス・アドレッサブル強誘電またはエレクトレット・メモリデバイスの動作方法において、ワード線はビット線に直交する方位とされ、ワード線およびビット線はメモリセルと直接接触し、それは２つの分極状態のいずれかに設定することができまたはメモリ材料の保持電圧よりも大きいスイッチング電圧をワード線およびビット線間に印加することによりそれら間で切り替えることができ、少なくとも１つの妨害発生動作サイクルを有する電圧パルスプロトコルが選定されたアドレス指定セルを定められた分極状態へ切り替えるために印加される。電圧パルスプロトコルは、さらに、このような電圧が動作サイクル内でそこに発生されてリードまたはライト動作のために印加される時に、非アドレス指定メモリセル上への妨害電圧の影響を最小限に抑えるために妨害発生動作サイクル前後に、それぞれ、妨害前および／または妨害後サイクルを含んでいる。
Patent JP-2007526365-A (JP)
Title: シロキサンを用いた難燃性組成物
IPC: C08K5/00
Filed: 2005-02-16
Abstract: 本発明は、低粘度を必要とする積層の用途において自己消火特性を提供することができる難燃性組成物に向けられる。これらの組成物は、ベース樹脂、および、相溶性を有するシロキサン、および、場合により、ハロゲン化化合物またはアンチモン化合物ではない追加の難燃性添加剤を含む。
Patent JP-2007523374-A (JP)
Title: 自動音声認識器のためのトレーニングデータを生成する方法およびシステム
IPC: G10L21/038
Filed: 2005-02-10
Abstract: 本発明は、ある特定の第一のサンプリング周波数（f H ）で動作するための自動音声認識器（２）のためのトレーニングデータ（D T ）を、第一のサンプリング周波数よりも低いある第二の周波数（f L ）でサンプリングされたオーディオデータ（D L ）からスペクトル特性（S L ）を導出し、該スペクトル特性の帯域幅をコードブック（６）から帯域幅拡張情報（I BE ）を取得することで拡張し、帯域幅拡張されたスペクトル特性（S LE ）を処理して必要とされるトレーニングデータ（D T ）を与える、ことによって生成する方法およびシステムを記載する。さらに、ある第二のサンプリング周波数（f L ）でサンプリングされたオーディオデータ（D T ）のスペクトル特性（S L ）の帯域幅を第二のサンプリング周波数（f L ）より高いある第一のサンプリング周波数（f H ）のためのスペクトル特性（S H ）に拡張するためのコードブック（６）を生成するための方法およびシステム（５）が記載される。
Patent JP-2008167768-A (JP)
Title: Magnetic resonance imaging apparatus and imaging method using the same
Inventor: TAKABAYASHI NAOYUKI
IPC: A61B5/055
Filed: 2007-01-05
Abstract: <P>PROBLEM TO BE SOLVED: To provide a magnetic resonance imaging apparatus which saves time and efforts to image a large region that cannot be imaged at a time by eliminating the need to change imaging conditions or to reset an imaging position or direction, and also to provide an imaging method using the same.  <P>SOLUTION: When imaging a region larger than the maximum imaging range of the apparatus, an imaging region of a subject P is set in an input section 16 in advance. A control section 17 then divides the set imaging region into a plurality of imaging regions which do not contain magnetic field distortion larger than a predetermined permitted value. The control section 17 carries out plural times of imaging on the basis of the imaging divisions while moving a bed 4 on which the subject P lies by means of a bed control section 5 to generate an image of the set imaging region of the subject P.  <P>COPYRIGHT: (C)2008,JPO&INPIT
Patent JP-2008167948-A (JP)
Title: Radiographic image processing method and apparatus, and program
Inventor: KITAMURA YOSHIRO
IPC: G01T1/24
Filed: 2007-01-12
Abstract: <P>PROBLEM TO BE SOLVED: To compensate the difference in contrast balance between radiation images prepared by using radiation detectors which are mutually different in radiation energy absorption characteristics, in a radiographic image processing method.  <P>SOLUTION: A high voltage image 50 and a low voltage image 52 obtained by the radiography of an object 31 using the radiations mutually different in energy distributions and a first radiation detector 21, are subjected to weighted subtraction processing 54 so as to form a bone part image 56 indicating the bone part of the object 31 and a soft part image 58 indicating the soft part. Thereafter, using the bone part image 56 and the soft part image 58, weighted addition processing 60 using both images is applied so as to compensate the difference in the contrast balance between the bone part and the soft part caused by the difference of the radiation energy absorption characteristics of a specified radiation detector and the first radiation detector 21, for forming the radiation image 62 with the prescribed contrast balance.  <P>COPYRIGHT: (C)2008,JPO&INPIT
Patent JP-2008174607-A (JP)
Title: Ultraviolet absorbing transparent resin composition
Inventor: TAMURA NOBUHITO
IPC: C09K3/00
Filed: 2007-01-17
Abstract: <P>PROBLEM TO BE SOLVED: To obtain an ultraviolet absorbing transparent resin composition by dispersing a particulate inorganic ultraviolet light absorber into a transparent resin.  <P>SOLUTION: The ultraviolet absorbing transparent resin composition is obtained by adding a zinc compound to a resin, melting and kneading the mixture at the thermal decomposition temperature of the zinc compound or above so as to disperse the thermally decomposed fine particle of the zinc compound into the resin. When the zinc compound is added to the resin, and then melted and kneaded at the decomposition temperature of the zinc compound or above, the zinc compound is mixed with the resin in a state of the zinc compound and simultaneously thermally decomposed and pulverized so that the thermally decomposed fine particle in a particulate state is dispersed into the resin.  <P>COPYRIGHT: (C)2008,JPO&INPIT
Patent JP-2008177068-A (JP)
Title: Insulated wire and its manufacturing method
Inventor: KAJIMA YASUKI
IPC: H01B7/02
Filed: 2007-01-19
Abstract: <P>PROBLEM TO BE SOLVED: To provide a manufacturing method capable of easily forming a terminal on an insulated wire.  <P>SOLUTION: In this insulated wire, a conductor 1 is made to pass through an electrodeposition bath 8 to attach an electrodeposited layer to its outer surface, and next the electrodeposited layer is burnt in a burning process. A conductor exposure part is formed by blowing the non-solidified electrodeposited layer attached in the electrodeposition bath 8 using a jetted fluid. Accordingly, since work of forming the conductor exposure part by purposedly mechanically scraping off an insulation layer is not necessary, manufacturing efficiency can be improved as a whole, and a problem of inferior quality due to dispersion of work does not occur. Whereas ultrafine powder dust is generated in the work of scraping off the insulating layer by a mechanical means, and adversely affects a secret apparatus, an electronic component name or the like, this manufacturing method has an advantage capable of surely preventing such a problem.  <P>COPYRIGHT: (C)2008,JPO&INPIT
Patent JP-2007219512-A (JP)
Title: Method and device for processing sequence of video image
Inventor: BOURDON PASCAL
IPC: G09G5/10
Filed: 2007-01-22
Abstract: <P>PROBLEM TO BE SOLVED: To provide a new image modulation method to prevent unauthorized copy in movie theaters.  <P>SOLUTION: A camcorder is always considered as a sampling device without taking into account the effects of shutter speed in modeling of the conventional camcorder device. The shutter of the camcorder is compared with a low-pass filter. As a result, modulation effects can be easily removed by setting a shutter speed to a low value. The right mathematical modeling of the shutter effects shows that, in the spectral domain, the behavior of the camcorder is close to a cardinal sine function with a main lobe and side lobes. Consequently, a modulation frequency that not only generates visual artifacts once recorded by the camcorder under shutter-free conditions, but that can also generates artifacts despite low shutter speed setting by going through side lobe of the shutter spectrum.  <P>COPYRIGHT: (C)2007,JPO&INPIT
Patent JP-2008182776-A (JP)
Title: Motor structure
Inventor: KOMIYAMA SHIGEKI
IPC: H02K5/04
Filed: 2007-01-23
Abstract: <P>PROBLEM TO BE SOLVED: To provide a motor structure that can reduce the occurrence of cogging torque and torque ripples.  <P>SOLUTION: In the motor structure accommodating a cylindrical stator core 2a inside a cylindrical casing 1, a gap t is provided between the outside circumference of the stator core 2a and the inside circumference of the casing 1, and the stator core 2a is accommodated inside the casing 1 being prevented from rotating. Thus, the stator core 2a is self aligned by a rotor 3, which makes it possible to reduce the occurrence of the cogging torque and torque ripples.  <P>COPYRIGHT: (C)2008,JPO&INPIT
Patent JP-2008183759-A (JP)
Title: Substrate of formation of hollow structure, method of manufacturing the substrate and method of forming hollow structure using the substrate
Inventor: MASUZAWA MASAHIRO
IPC: B29L31/60
Filed: 2007-01-29
Abstract: <P>PROBLEM TO BE SOLVED: To provide a substrate for formation of a hollow structure which allows an improvement in the strength of the open peripheral wall consisting openings for discharging the gas stored in gas storage spaces out of the spaces and equalization of the volumes of individual hollow parts and the thickness of the film dividing individual hollow parts of a hollow structure.  <P>SOLUTION: The substrate for formation of a hollow structure has a surface 23" on which an elastic deformation film 24 is to be formed with an elastic material capable of elastic deformation, two or more gas storage spaces 21 arranged regularly and gas discharging parts 22 which have an opening 22b facing each gas storage space 22 and an opening 22a facing the surface 23" and discharge the gas present in individual gas storage spaces 22 toward the surface 23" under pressure reduction conditions. The portion between the openings consists of a penetration preventive space 22c preventing penetration of the material capable of elastic deformation.  <P>COPYRIGHT: (C)2008,JPO&INPIT
Patent JP-2008187358-A (JP)
Title: Processing execution program, processing execution device, and the processing execution method
Inventor: WATANABE HIROMI
IPC: H04M1/72469
Filed: 2007-01-29
Abstract: <P>PROBLEM TO BE SOLVED: To provide a processing execution program for improving operability to a user at an acceptance part.  <P>SOLUTION: A portable terminal 10 stores the association of processing content of [calling 090-1××4-5××8] with [information based on signals output from four buttons noticed with [1], [4], [7], and [*]] in a table 11. Then, when the button noticed with [5] is depressed by a user, the portable terminal 10 executes the processing content since the processing content of [calling 090-2××5-6××9] is associated with information based on the signal output from the button noticed with [5] in the table 11. Also, the information based on signals output from the buttons noticed with not only [5] but also [2], [8] and [0] is associated with the processing content, and when any of those buttons is depressed, the portable terminal 10 executes the same processing content.  <P>COPYRIGHT: (C)2008,JPO&INPIT
Patent JP-2008186696-A (JP)
Title: Fuel cells
Inventor: SUGA YOSHINORI
IPC: H01M8/24
Filed: 2007-01-30
Abstract: <P>PROBLEM TO BE SOLVED: To improve a damp or wet condition in the generator of a fuel cell.  <P>SOLUTION: A continuous absorptive member 13 is provided in a supplying gas passage region SA between supplying manifold holes M1, M3 in a film electrode juncture 10 and a generator 11, and in an exhaustion gas passage region EA between exhaustion manifold holes M2, M4 and the generator 11. A supplying gas passing through the absorptive member 13 is humidified by a moisture in the absorptive member 13, and flown into the generator 11. An exhaust gas containing a drainage from the generator 11 is flown into the exhaustion gas passage region EA from the generator 11, and the absorptive member 13 absorbs the drainage. The moisture inside the absorptive member 13 moves from the exhaustion gas passage region EA to the supplying gas passage region SA according to a moisture gradient.  <P>COPYRIGHT: (C)2008,JPO&INPIT
Patent JP-2008187020-A (JP)
Title: Susceptor for vapor phase epitaxy and vapor epitaxy growth system, and vapor phase epitaxy method
Inventor: YOSHIDA CHISA
IPC: H01L21/683
Filed: 2007-01-30
Abstract: <P>PROBLEM TO BE SOLVED: To provide a susceptor for vapor phase epitaxy and a vapor epitaxy growth system capable of effectively preventing sticking from occurring, preventing cracks and breakages in wafer, and improving the productivity of the epitaxial wafer, and to provide a vapor phase epitaxy method.  <P>SOLUTION: The susceptor for vapor phase epitaxy places a wafer in the vapor phase growth system. In the susceptor for vapor phase epitaxy, recessed spot facing comprising a wafer placement surface for placing a wafer and a sidewall is formed. In the susceptor for vapor phase epitaxy, the wafer placement surface comprises a center side region, and a peripheral side region where surface roughness is larger than that at the center side region, and the vapor epitaxy growth system has the susceptor. A wafer is placed on the spot facing of the susceptor and a thin film is formed by vapor phase epitaxy on the surface of the wafer.  <P>COPYRIGHT: (C)2008,JPO&INPIT
Patent JP-2008185271-A (JP)
Title: Blow-out device system and exhaust heat transfer device system for air-conditioning, and air-conditioning system provided therewith
Inventor: KOBAYASHI SHIGEMI
IPC: F24F11/76
Filed: 2007-01-30
Abstract: <P>PROBLEM TO BE SOLVED: To propose a blow-out device system for air-conditioning uniforming cold air amounts blown out into an indoor space.  <P>SOLUTION: The blow-out device system for air-conditioning is provided with an air conditioner 21 sucking in air from a suction opening 21a and blowing out cold air from a blow-out opening, an air supply chamber 23 formed under the floor to circulate the cold air of the air conditioner 21 and blowing out the cold air from multiple blow-out holes 11a formed on the floor into the indoor space 15, a plurality of blow-out devices 30 provided in the floor 11 to suck the cold air in the air supply chamber 23 and blow it out into the indoor space 15, an air flow measuring part measuring a static pressure or a wind speed of the cold air in the air supply chamber 23, and a blow-out control part blowing out the cold air in the air supply chamber into the indoor space by operating a neighborhood blow-out device when the static pressure or the wind speed of the cold air of a predetermined position in the air supply chamber becomes a threshold or lower in response to output of the air flow measuring part.  <P>COPYRIGHT: (C)2008,JPO&INPIT
Patent JP-2008186754-A (JP)
Title: Light source unit and beacon light
Inventor: KATO TOSHIYA
IPC: F21Y101/02
Filed: 2007-01-31
Abstract: <P>PROBLEM TO BE SOLVED: To provide a luminous unit and beacon light capable of avoiding mounting positions of solid luminous elements from greatly separating each other even though a plurality of them are used in piled up state in order to increase the degree of brightness in a horizontal direction, and restraining radiating light from scattering in a horizontal direction.  <P>SOLUTION: A light source unit comprises first and second light sources a1 and a2 respectively having the solid luminous elements 1, 2 and optical members 3, 4 for making the radiating light refracted in a horizontal direction crossing optical axes of the radiating light of the solid luminous elements 1, 2, and retaining members 5, 6 for lining up the optical axes of the solid luminous elements 1, 2 of the first and second light sources a1, a2 and retaining the solid luminous elements 1, 2 in a state opposed to each other.  <P>COPYRIGHT: (C)2008,JPO&INPIT
Patent JP-2008192206-A (JP)
Title: Semiconductor memory device
Inventor: YAMAOKA KUNISATO
IPC: H03M13/01
Filed: 2007-02-01
Abstract: <P>PROBLEM TO BE SOLVED: To provide a semiconductor memory device in which reliability of data is high when user data is input and output, which is provided with compatibility with a conventional device, and in which memory capacity of user data is high, in a semiconductor memory device mounting an ECC circuit.  <P>SOLUTION: A ratio of a parity bit for user data written in a memory cell array 201 is reduced by making the number of bits of data input to the ECC circuit 205 exceed the number of bits of data input from the outside for writing. Consequently, memory capacity available for the user is made higher in the memory cell array of same integration density by reducing a rate occupied by a recording area for parity bit in the memory cell array compared with a conventional device.  <P>COPYRIGHT: (C)2008,JPO&INPIT
Patent JP-2008191249-A (JP)
Title: Image forming apparatus
Inventor: BETSUSHIYO YUUJI
IPC: G03G15/00
Filed: 2007-02-01
Abstract: <P>PROBLEM TO BE SOLVED: To reduce needless toner consumption cost which is burden on a user by reducing the forming number or forming frequency of patch toner images in development using six or more colors such as light magenta and light cyan in addition to Y, M, C and K four-color component toner in a color image forming apparatus.  <P>SOLUTION: In an image forming mode using toner obtained by combining toner having the same hue but different lightness, the frequency of forming the patch toner image corresponding to each toner obtained by combining the toner having the same hue but different lightness is set to be lower when using toner having high lightness than when using toner having low lightness. Therefore, waste toner is restrained to the minimum, maintenance work is eliminated all the more because a waste toner storing part is not full of the waste toner soon, and a stable image formation is achieved without spoiling productivity.  <P>COPYRIGHT: (C)2008,JPO&INPIT
Patent JP-2007207419-A (JP)
Title: Perpendicular magnetic recording head and its manufacturing method
Inventor: HAN CHERNG-CHYI
IPC: G11B5/31
Filed: 2007-02-02
Abstract: <P>PROBLEM TO BE SOLVED: To provide a perpendicular magnetic recording head capable of increasing a recording density, suppressing the leakage of a magnetic flux in a side direction and preventing side write, and its manufacturing method.  <P>SOLUTION: The perpendicular magnetic recording (PMR) head has a pair of side shield layers 20, 20 on a substrate 5, and a trench 300 is provided between the side shield layers 20, 20. Inside the trench 300, a side gap layer 60, a seed layer 15 and a magnetic pole (main magnetic pole) 10 are embedded in the order from the side of the inclined side wall 25 and the bottom surface. The magnetic pole 10 is protected by an upper shield 40 at the upper part and by the side shield layers 20, 20 at the side part. The trench 300 has a wedge-shaped cross section and thus the magnetic pole 10 is formed into the same shape in a self-aligning manner.  <P>COPYRIGHT: (C)2007,JPO&INPIT
Patent JP-2008193919-A (JP)
Title: Culturing container
Inventor: TANPO MASAHIRO
IPC: C12M1/34
Filed: 2007-02-09
Abstract: <P>PROBLEM TO BE SOLVED: To provide a culturing container simply performing the collection of a sample and culturing and that will not adversely affect an examination surface due to the action of sample collection.  <P>SOLUTION: This culturing container 1 has its body 10 and lid 20 connected by a hinge part 30. The body 10 and lid 20 are made from a resin sheet. At the body 10, a recessed part 11, to be filled with a medium 13, is formed and at the lid 20, a projected part 21 for fitting with the recessed part 21 is formed. On the surface of the projected part 21, an adhesive layer 22 is formed. By pushing the adhesive layer 22 to the examination surface and then folding the body 10 and lid 20 in half at the hinge part 30, the specimen of microorganisms, attached at the adhesive layer 22, makes contact with a medium 13 and attaches also at the medium 13, and the culture of the microorganisms is started. Fitting of the cylindrical projections 14 of the body 10 with the cylindrical recessed parts 23 of the lid 20 reinforces the fitting of the recessed part 11 with the projected part 21.  <P>COPYRIGHT: (C)2008,JPO&INPIT
Patent JP-2008194224-A (JP)
Title: Capacitor discharge circuit for safety improvement, for improving safety of light irradiation apparatus
Inventor: MATS OLOF HOUJOU
IPC: A61N5/06
Filed: 2007-02-13
Abstract: <P>PROBLEM TO BE SOLVED: To provide a capacitor discharge circuit for safety improvement, capable of improving the safety of a light irradiation apparatus by easily discharging a capacitor for a power source when the power source of the light irradiation device is OFF at a low cost.  <P>SOLUTION: The capacitor discharge circuit 10 for the safety improvement relating to one embodiment of this invention is provided with a relay switch 11 and a semiconductor switch 13 connected to the capacitor 3 for the power source, a relay control circuit 12 for generating a relay control voltage, and a semiconductor control circuit 14 for generating semiconductor control signals. When the power source of the light irradiation device 1 is OFF, the relay control circuit 12 closes the contact of the relay switch 11 by stopping the supply of the relay control voltage, and the semiconductor control circuit 14 conducts the semiconductor switch 13 before the contact of the relay switch 11 is closed by starting the supply of the semiconductor control signals and also holds the conduction of the semiconductor switch 13 during a chattering generation period in the relay switch 11.  <P>COPYRIGHT: (C)2008,JPO&INPIT