baber/WOPTO huggingface dataset:
Patent WO-2009054440-A1 (WO)
Title: Drug delivery system, and drug delivery device
Inventor: YASUNAGA ITSUO
IPC: A61J3/00
Filed: 2008-10-23
Abstract: This aims to provide a drug delivery system which is constituted by connecting a drug delivery device or a sub unit having a function to deliver a drug, to a drug delivery device or a main unit having a drug wrapping function, and a drug delivery device which can be suitably adopted in the drug delivery system.   The drug delivery system (1) includes the main unit (2), the sub unit (3) and a transfer device (5) for the transfer between the two units.  In the drug delivery system (1), the drug delivered from the side of the sub unit (3) is transferred by the transfer device (5) to the side of the main unit (2), and can be wrapped and delivered in a drug wrapping unit (21) together with the drug delivered from a main storage unit (20) or the like, on the side of the main unit (2).
Patent WO-2009081781-A1 (WO)
Inventor: IHARA TORU
IPC: G08G1/16
Filed: 2008-12-15
Abstract: An alarm device is comprised of an alarm means (2, 4) that is possible to announce a plurality of alarms; a plurality of alarm providing means (22, 24, 26, 28, 11) that make the alarm means operate to provide a driver with an alarm in accordance with a driver's condition, an environmental condition around a vehicle or a vehicle condition; and a priority setting means (8) that calculates a general index (TRP) by using a first index (RLP) to indicate a risk level or alarm priority to the alarm providing means (22, 24, 26, 28, 11) and a second index (RMP) to indicate an emergency level of a risk or margin for time in each of the conditions and determines priority of the alarms in accordance with the general index (TRP).
Patent WO-2010023774-A1 (WO)
Inventor: NAGAFUCHI TATSURO
IPC: G01F23/24
Filed: 2008-12-24
Abstract: A liquid level detector (1) used for water level control for a boiler.  An inner tube (31) is mounted in an outer tube (30) so as to vertically penetrate therethrough.  An electrode rod (36) is inserted into the outer tube (30) so as to be located outside the inner tube (31).  The inner tube (31) is connected at the upper end thereof to an upper header via a gas phase-side communication tube and at the lower part thereof to a lower header via a liquid phase-side communication tube.  At the upper and lower portions in the outer tube (30), there are communication holes (34, 35) formed in the peripheral side wall of the inner tube (31).  The upper communication hole (34) is formed at a position not facing the electrode rod (36).  This prevents vapor from the upper header and water entrained in the vapor from directly making contact with the electrode rod (36), and as a result, erroneous water level detection is prevented.
Patent JP-WO2007123100-A1 (JP)
Title: フィルター付きマイクロプレート
IPC: C12M1/26
Filed: 2007-04-17
Abstract: 被検査物質を注入するための開口部５０を有する上方容器４１と、フィルター４６を保持している上側パッキン４４及び下側パッキン４５と、前記上方容器４１と嵌合する中間容器４２であって、フィルター４６を通過した検査試料が通る開口部６３を有しており、該上方容器４１との間に上側パッキン４４及び下側パッキン４５を挟圧保持している中間容器４２と、検査試料を収容する溜め部８０を有している下方容器４３であって、中間容器４２へ対して着脱自在に保持されている下方容器４３とよりなり、中間容器４２が開口部６３から垂下し下端部に下方開口部６５を具備した案内壁６４を有しており、下方容器４３が有している溜め部８０が前記案内壁６４を収容し、該溜め部８０が案内壁６４の下方開口部６５からフィルター４６を介して供給される検査試料を受け入れており、さらに該下方容器４３がその上方の拡径斜面９２に溜め部８０の外部に通じる通気部９０を有しているフィルター付きマイクロプレートを提供する。
Patent JP-WO2007145116-A1 (JP)
Title: 複合光学素子およびその製造方法
IPC: G02B3/08
Filed: 2007-06-06
Abstract: 本発明は、複合光学素子およびその製造方法に関し、特に、第１光学部の第１表面の一部において第２光学部が接合された複合光学素子に関するものである。光学特性の向上を図る。複合光学素子（１）は、複合光学素子本体（１５）にスペーサ部材（７，７，…）が固定されたものである。複合光学素子本体（１５）は、第１光学部（１０）と第２光学部（２０）とを有しており、第１光学部（１０）の第１表面（１３）には、レンズ面（１１）と、レンズ面（１１）を取り囲んでそのレンズ面（１１）に接続された第１外周面部（１２）とが存する。第２光学部（２０）は、レンズ面（１１）において第１光学部（１０）に接合されている。そして、スペーサ部材（７，７，…）は、第１外周面部（１２）に固定されている。
Patent JP-WO2008065817-A1 (JP)
Title: 中空構造物の発泡充填具
IPC: B29C44/00
Filed: 2007-10-12
Abstract: この発明の中空構造物（９）の発泡充填具（１）は、発泡性基材（３）と支持部材（２）を有する。発泡性基材（３）は、直線長尺状に形成され、かつ長尺方向に略直交する方向に延出する切込み（３ａ，３ｂ）を複数有している。支持部材（２）は、外周部近傍に立設する周壁部（２ｂ）と、周壁部（２ｂ）よりも外周側に形成される保持部（２ｄ）を有している。そして周壁部（２ｂ）の外周面に発泡性基材（３）が切込み（３ａ，３ｂ）を利用しつつ弾性変形されて配設され、保持部（３ｄ）によって弾性戻りが規制される。
Patent WO-2009144934-A1 (WO)
Title: Matériau cosmétique et procédé cosmétique pour effectuer des retouches
Inventor: TOUYAMA KEISUKE
IPC: A61Q1/00
Filed: 2009-05-27
Abstract: L’invention porte sur un matériau cosmétique servant à effectuer des retouches et associant une facilité d’utilisation, ledit matériau pouvant être utilisé aussi facilement qu’une poudre par n’importe qui, et un fini beau et naturel, ledit matériau possédant une capacité de couverture identique à celle d’un fond de teint. L’invention concerne également un procédé cosmétique utilisant ledit matériau cosmétique. La présente invention concerne un matériau cosmétique sous forme de poudre solide servant à effectuer des retouches, contenant a) de 10 à 60 % de talc floconneux, avec une dimension particulaire moyenne (D50) comprise entre 15 et 40 µm, b) de 6 à 12 % d’oxyde de titane pigmentaire, et c) de 6 à 9 % d’un composant huileux. La présente invention porte également sur un procédé cosmétique utilisant ledit matériau cosmétique. Dans ledit matériau cosmétique, la viscosité du composant huileux est de préférence inférieure ou égale à 100 PI.
Patent WO-2009154007-A1 (WO)
Inventor: SAKAI KAZUTO
IPC: H02K1/27
Filed: 2009-06-19
Abstract: Increased magnetization current during demagnetization and magnetization can be deterred, and variable-speed high-output operation is achieved over a wide range from low speed to high speed. A rotor (1) comprises a rotor core (2), permanent magnets (3) for which the product of the magnetic coercive force and the thickness in the magnetization direction is small, and a permanent magnet (4) for which the product of the magnetic coercive force and the thickness in the magnetization direction is large. To reduce interlinking magnetic fluxes of the permanent magnets (3), a magnetic field is caused to act in the opposite direction from the magnetization direction of the permanent magnets (3) by the armature coil current. To increase the interlinking magnetic fluxes of the permanent magnets (3), the magnetic field is caused to act in the same direction as the magnetization direction by the armature coil current. Short-circuit coils (8) are provided at the flux path portions of the permanent magnet (4) excluding the permanent magnets (3). Inductive current is induced in the short-circuit coils (8) by the magnetic field generated by the magnetization current, and magnetic fields are generated around the short-circuit coils (8) by said inductive current. The permanent magnets (3) are magnetized by the latter magnetic fields and by the magnetic fields generated by the magnetization current.
Patent WO-2010150313-A1 (WO)
Title: Communication device
Inventor: MORI HIROKI
IPC: H04J99/00
Filed: 2009-06-25
Abstract: A communication device adds a permutation signal obtained by multiplying a fundamental signal by an integer to an information signal having information to be transmitted to a destination terminal and transmits a radio signal to a plurality of destination terminals by a space multiplex method. The communication device includes: a determination unit which determines the size of the first fundamental signal to be a value of one side of a basic grating determined in accordance with the modulation signal of the first information signal and multiplied by N (a real number not smaller than 1); an addition unit which adds to the first information signal, a first permutation signal obtained by multiplying the first fundamental signal by an integer; and a multiplication unit which multiplies the first information signal added by the first permutation signal, by a weight.
Patent WO-2010010676-A1 (WO)
Title: Dispositif de gestion de groupe et système de gestion de groupe
Inventor: NISHINO ATSUSHI
IPC: F24F11/02
Filed: 2009-07-16
Abstract: L'invention concerne un dispositif de gestion de groupe et un système de gestion de groupe pouvant évaluer efficacement les situations de fonctionnement de plusieurs appareils de climatisation installés dans une pluralité de bâtiments. Le système de gestion de groupe (100) est doté du dispositif de gestion de groupe (30) qui gère les unités de climatisation (10a, 10b, 10c) installées dans les bâtiments (50a, 50b, 50c) comme une pluralité de groupes (15a, 15b, 15c) et qui comprend une section d'acquisition (35a) et une section d'extraction (35c). La section d'acquisition acquiert les données opérationnelles concernant les appareils de climatisation par l'intermédiaire de dispositifs de commande (20a, 20b, 20c) disposés dans des bâtiments respectifs et contrôlant les appareils de climatisation à l'intérieur des bâtiments. La section d'extraction extrait un groupe répondant à une condition prédéterminée selon une pluralité de points de vue d'évaluation.
Patent WO-2010064347-A1 (WO)
Title: Flame retardant hydraulic oil composition
Inventor: MITSUMOTO SHINICHI
IPC: C10M137/08
Filed: 2009-09-11
Abstract: As a flame retardant hydraulic oil composition which is most suitable for use at a place where the risk of fire breakout is high under high-temperature and high-pressure conditions, can be applied to a high-pressure pump, has high wear resistance, seize resistance, and sludge inhibiting performance, and can be used for a long period of time, a flame retardant hydraulic oil composition containing (A) at least one base oil selected from hydrocarbon oils, synthetic esters, oils and fats; (B) a carbodiimide compound represented by formula (1) and/or an epoxy compound in an amount of 0.01 to 2% by mass based on the total amount of the composition; and (C) at least one anti-wear agent selected from sulfur-containing phosphoric acid esters, acidic phosphoric acid esters, acidic phosphoric acid ester amine salts, and phosphorous acid esters in an amount of 0.001 to 5% by mass based on the total amount of the composition is provided.
Patent WO-2010055667-A1 (WO)
Inventor: KOUNO YOSHIHIDE
IPC: C08J3/20
Filed: 2009-11-12
Abstract: An environmentally-friendly elastomer composition which can be produced at low cost without using complex production steps is provided without a significant reduction in properties.  Also provided are a method for the efficient production of the elastomer composition, and a tire that uses the elastomer composition. The elastomer composition is an elastomer composition wherein the residue generated by fermentation of organic matter is added to the elastomer components, and the residue contains components other than the primary components of the residue at a ratio of 6 mass% or less, or the total amount of sugars, citric acid, and amino acids contained in the residue constitutes 6 mass% or less of the residue.
Patent WO-2009093738-A1 (WO)
Title: Method for inspecting the presence/absence of leakage hole in fluid container
Inventor: YOSHIDA KENGO
IPC: G01M3/24
Filed: 2009-01-27
Abstract: Provided is an excellent leakage hole detecting method, which can detect a leakage hole reliably even if any fluid around a tank is caused by the suction in the tank inside to invade from the leakage hole into any fluid in tank inside, which can detect all leakage holes in all the portions of the tank structure and which can shorten the testing time period drastically. The method is characterized (1) by closing the mouth of a container of a liquid, (2) by making the internal pressure of the container lower than an external pressure and adding a reference ultrasonic signal having a predetermined phase to the fluid in the container, thereby to acquire a contained fluid ultrasonic signal, and (3) by comparing the reference ultrasonic signal and the contained fluid ultrasonic signal thereby to decide that the container has the leakage hole, if the contained fluid ultrasonic signal has a phase difference from the reference ultrasonic signal and if the phase difference becomes continuously larger with time.
Patent WO-2009104470-A1 (WO)
Title: 電解質膜の製造方法、および、電解質膜
Inventor: HIRAOKA HIDEKI
IPC: C08F20/58
Filed: 2009-02-03
Abstract: 分子内にスルホン酸基を有する重合体を含む電解質は耐久性が不十分であったので、酸性基を有する単量体単位の分子構造を改良した組成物およびその重合体によって、大幅に耐久性が改良された電解質膜を提供する。
すなわち、脂環炭化水素基を含み、かつ、その脂環炭化水素基の脂肪族環上に、少なくとも１個以上の酸性基および／またはその塩が置換基として結合している特定の単量体を少なくとも１種含む組成物を重合することにより、上記電解質膜を提供する。
Patent WO-2009104484-A1 (WO)
Title: 変速機のインターロック機構
Inventor: AKASHI KOUHEI
IPC: F16H63/36
Filed: 2009-02-06
Abstract: 本発明は、変速機の２重噛み合いを防止するインターロック機構を、回動するロックドラムを使用して、確実な拘束作用が生じ、かつ、各種変速機への適合性の優れた構造とするものである。本発明のインターロック機構では、変速段を切り換えるための複数のフォークの各々に、フォーク操作部材とともにフォーク固定部材ＬＰ１～ＬＰ４を結合し、これらを回動可能に支持されたロックドラムＬＤの複数のロックドラム溝にそれぞれ嵌め込む。各ロックドラム溝には、幅がフォーク固定部材とほぼ等しい小幅部とそれよりも大きい大幅部とを、ロックドラムＬＤの回動に応じて小幅部に位置するフォーク固定部材が切り換わるように形成する。ロックドラムＬＤは、セレクトモーター７によりシフトドラム４と同期して回動され、シフトドラム４の往復動に伴ってシフトするフォーク操作部材の移動を大幅部で許容し、それ以外のフォーク操作部材の移動を、小幅部のフォーク固定部材により拘束する。
Patent WO-2009113575-A1 (WO)
Inventor: OKAMOTO MASAHIRO
IPC: G16B5/30
Filed: 2009-03-11
Abstract: L'invention porte sur un analyseur dynamique, un équipement d'analyse dynamique, un système d'analyse dynamique, un procédé d'analyse dynamique et un programme qui peuvent analyser de façon précise même un système dans lequel une pluralité d'éléments varient dans son ensemble à mesure que le temps s'écoule et un état stable n'existe pas. Lorsqu'un temps d'analyse (t) et du butanol qui est une substance objective sont entrés, un analyseur dynamique (33b) calcule les influences de paramètres de réaction respectifs sur une concentration en butanol au temps d'analyse (t) à l'aide de modèles non linéaires respectifs. L'analyseur dynamique (33b) normalise chaque valeur de sensibilité obtenue par chacune des valeurs maximales positives et négatives, génère des informations relatives aux paramètres ayant des valeurs, allant de la valeur la plus importante à une n ième  valeur prédéterminée, après la normalisation, et affiche les informations sur une unité d'affichage (36).
Patent WO-2009119514-A1 (WO)
Title: Crimp terminal and crimp structure using the crimp terminal
Inventor: KONDO TAKAYA
IPC: H01R4/18
Filed: 2009-03-23
Abstract: A conductor crimp section (13) of a crimp terminal (10) has in the inner surface thereof serrations (17a, 17b, 17c) extending in a direction intersecting the longitudinal direction of a terminal body (10a), and the serrations (17a, 17b, 17c) enhance close contact properties between the crimp terminal (10) and a conductor in crimped connection.  Of the serrations (17a, 17b, 17c), the serrations (17b, 17c) at opposite ends in the longitudinal direction are constructed so as to form a shape bent in the longitudinal direction in a V-shape in a plan view when the conductor crimp section (13) is in an expanded state.  Those portions of the serrations (17b, 17c) at the opposite ends which are located inward of a pair of conductor crimp sections (14, 14) extend toward the front ends of conductor crimp sections (14, 14) so as to approach each other.
Patent WO-2009123319-A1 (WO)
Title: Seatbelt retractor
Inventor: NAKAOKA TAKATOSHI
IPC: B60R22/46
Filed: 2009-03-27
Abstract: When a gas generating member 61 of a pretensioner mechanism 17 is activated in case of vehicle collision, a piston 64 inside a pipe cylinder 62 is moved from normal state and a pinion gear body 33 is rotated. Thus, the teeth of the pinion gear portion 71 come in contact with a push block 87 and pushes it in outward direction in conjunction with a force of a block urging spring 87A, whereby a rotating lever 88 is rotated by the push block and the lower end portion of the rotating lever 88 gets disengaged from the tip end portion of a gear-side arm 89. As a result, the gear-side arm 89 is rotated by an urging spring 90 in outer direction and rotates a mechanical arm 92 through a coupling shaft 91 to make the pawl 43 engage a ratchet gear 26 of a take-up drum unit 6.
Patent WO-2010055703-A1 (WO)
Title: Industrial salt, and apparatus and process for producing industrial salt
Inventor: TAMURA NORITOSHI
IPC: C01D1/02
Filed: 2009-04-15
Abstract: Inexpensive industrial salt is provided without the need of electrical dialysis, crystallization, etc. by reducing the amount of a chemical to be used and reducing equipment cost and operation cost. The industrial salt (S) is obtained by bleeding part of a combustion gas from a kiln discharge passage extending from the end (12b) of a cement kiln (12) to a lowermost-stage cyclone (13), water-washing the dust (D) contained in the bleed gas (G2), and drying, in a gas stream, a filtrate (L1) obtained after the water washing.  Industrial salt can be obtained by removing calcium ingredients from the filtrate and drying, in a gas stream, the filtrate from which the calcium ingredients have been removed.  Furthermore, industrial salt can be obtained by removing sulfuric acid radicals from the filtrate and drying, in a gas stream, the filtrate from which the sulfuric acid radicals have been removed.  The drying can be conducted with a spray drier (43) using a gas discharged from a clinker cooler (12a).  Through the drying in a gas stream, industrial salt having a particle diameter of 20-500 µm can be obtained.
Patent WO-2009157457-A1 (WO)
Inventor: SUGAHARA CHIKAHITO
IPC: C25D7/00
Filed: 2009-06-23
Abstract: 打ち抜き加工されて形成される電気電子部品の材料として用いられる、例えば銅系金属材料の金属基材上の少なくとも一部に実質的に１層の絶縁皮膜が設けられた電気電子部品用複合材料であって、金属基材と絶縁皮膜との間に、前記打ち抜き加工後の材料端部における前記絶縁皮膜の剥離幅が１０μｍ未満となるようにＮｉまたはＮｉ－Ｚｎ合金からなる金属層が介在されている電気電子部品用複合材料。
Patent WO-2010005069-A1 (WO)
Inventor: OKANO FUMIYOSHI
IPC: G01N33/574
Filed: 2009-07-10
Abstract: (a)配列表の配列番号３～９５のうち奇数の配列番号に示されるアミノ酸配列中の連続する７個以上のアミノ酸からなるポリペプチド (b)前記(a)のポリペプチドと９０％以上の配列同一性を有し、かつ７個以上のアミノ酸からなるポリペプチド、及び(c)前記(a)又は(b)のポリペプチドを部分配列として含むポリペプチドのポリペプチド類から選択されかつ免疫誘導活性を有する少なくとも１つのポリペプチド、又は該ポリペプチドをコードするポリヌクレオチドを含み生体内で該ポリペプチドを発現可能な組換えベクター、を有効成分として含有する免疫誘導剤は、癌の治療用及び／又は予防用として使用される。また、上記ポリペプチドは、癌患者の血清中に特異的に存在する抗体と反応するので、試料中の該抗体を測定すれば、生体内の癌を検出することができる。
Patent WO-2011007451-A1 (WO)
Title: Terminal device, communication system, and communication method
Inventor: EZAKI TAKATO
IPC: H04W72/12
Filed: 2009-07-17
Abstract: A terminal device (110) receives downlink data (141) via a first base station (120) and transmits/receives control information (142, 143) used for reception of downlink data (141) to/from the first base station (120).  Moreover, the terminal device (110) transmits uplink data (151) via a second base station (130) which is different from the first base station (120) and transmits/receives control information (152, 153) used for transmission of the uplink data (151) to/from the second base station (130).
Patent WO-2010013704-A1 (WO)
Inventor: ASANO NAOMI
IPC: G01N35/00
Filed: 2009-07-28
Abstract: Provided is a microdevice capable of performing analysis quickly and at a high level of sensitivity even when a minute amount of sample liquid is used. The microdevice is equipped with a rotating substrate, a reaction field provided on the rotating substrate, and an introduction part for introducing a liquid into the reaction field. The microdevice is characterized in that the angle formed by the direction of the centrifugal force generated when the rotating substrate is rotated and the part of the wall surface of the reaction field where the centrifugal force has the greatest effect is always 45-90°.
Patent WO-2010016451-A1 (WO)
Inventor: NISHIOKA DAIZO
IPC: G02B6/36
Filed: 2009-08-03
Abstract: A jig for an optical connector, constructed as a single part, compact in size, and simple, wherein the jig allows reliable operation of wedge removal and can be produced at reduced production cost.  An optical connector jig has a base plate, wedges provided to the lower surface of the base plate and inserted into a mechanical splice section of an optical connector, a pair of arms extending from opposite sides of the base plate, and projections projecting from the arms toward the base plate and, when the arms are held from sides thereof, engaging with the lower surface of the base plate to warp the base plate upward.
Patent WO-2010013837-A1 (WO)
Inventor: YAMAMOTO TAKETSUGU
IPC: H01M10/054
Filed: 2009-07-29
Abstract: 本発明はナトリウム二次電池を提供する。ナトリウム二次電池は、第１電極と、炭素材料を有する第２電極とを含み、炭素材料が、要件１、要件２、要件３および要件４からなる群から選ばれる１つ以上を満足する。要件１：ラマン分光測定により得られるＲ値（＝ＩＤ／ＩＧ）が１．０７以上３以下である。要件２：Ｘ線小角散乱測定により得られるＡ値が－０．５以上０以下であり、かつσ Ａ 値が０以上０．０１０以下である。要件３：炭素材料８５重量部とポリフッ化ビニリデン１５重量部とを混合して得られる電極合剤を有する電極について、ナトリウムイオンのドープかつ脱ドープがなされた後の電極における炭素材料に、１０ｎｍ以上の細孔が実質的に存在しない。要件４：示差熱分析測定により得られるＱ １ 値が、８００ジュール／ｇ以下である。
Patent WO-2010052960-A1 (WO)
Title: Structure for assembling clip and mounting member together
Inventor: INOUE MASATOSHI
IPC: F16B5/10
Filed: 2009-08-07
Abstract: A structure for assembling a clip and a mounting member together, wherein the structure allows the clip to be easily mounted to the mounting member and, in the mounted state, reliably prevents the clip from coming out of the mounting member.
An assembling structure used to assemble together a mounting member (30) and a clip (10) provided with a flange section (12) and engaging legs (13).  The mounting member (30) comprises: an insertion hole (35) which has an insertion position (36) for enabling insertion of engaging legs (13) and also has a fixation position (37) for enabling movement of the engaging legs (13) and holding the engaging legs (13) at a predetermined portion; a pressing section (45) which, when the engaging legs (13) moves to the fixation position (37) to position the flange section (12) at the fixation position (37), is located above the surface of the flange section (12) to restrict movement of the engaging lens (13) in the direction in which the engaging legs (13) come out of position; and a check means which permits insertion of the engaging legs (13) from the insertion position (36) of the insertion hole (35) and restricts, when the engaging legs (13) move to the fixation position (37), that the engaging legs (13) move again to the insertion position (36).
Patent WO-2011024279-A1 (WO)
Title: 内燃機関の始動回転力伝達機構
Inventor: SUGIMURA KAZUAKI
IPC: F02N15/02
Filed: 2009-08-27
Abstract: 内燃機関の始動回転力伝達機構は、クランクシャフト２に連結されるインナーレース４と、始動用モータＳＴからの回転駆動力が伝達されるリングギヤ８と、リングギヤ８に連結されるアウターレース６とを備える。アウターレース６の内周面とインナーレース４の外周面との間には、ワンウェイクラッチ１２、ボールベアリング１４及び内側シール部材１６が設けられる。内側シール部材１６は、クランクシャフト２の軸方向においてワンウェイクラッチ１２及びボールベアリング１４に対して内燃機関本体ＥＢの外側寄りに設けられ、アウターレース６の内周面とインナーレース４の外周面との間からのオイル漏れを阻止する。インナーレース４に形成されたオイル供給通路２０は、同インナーレース４の外部と内側シール部材１６とを連通する。
Patent WO-2010032756-A1 (WO)
Inventor: HIGUMA KAORU
IPC: G02F1/035
Filed: 2009-09-16
Abstract: Provided is an optical modulator such as a DQPSK modulator or an FSK modulator for generating a multilevel phase modulation signal, which has a high signal quality, and particularly which has high performance and can suppress degradation in modulation characteristic due to the intensity difference between signal components caused by optical modulator manufacturing variations and the like and improve the characteristic without a complicated manufacturing process. An optical modulator (1) comprising a substrate (4) having an electro-optic effect, an optical waveguide (5) formed on the substrate, and control electrodes (61-65) for controlling optical waves propagating through the optical waveguide is characterized in that the optical waveguide (5) is configured from a main Mach-Zehnder (MZ) waveguide (50) comprising two branch waveguides and sub Mach-Zehnder (MZ) waveguides (51, 52) provided in the branch waveguides, optical intensity adjusting means (for example, composed of optical waveguides (53, 54) and control electrodes (63, 64)) are provided in series with the sub Mach-Zehnder waveguides (51, 52) in the respective branch waveguides, and the optical modulator is provided with a voltage control circuit for monitoring part of optical waves propagating through the branch waveguides and adjusting voltages to be applied to the optical intensity adjusting means.