baber/WOPTO huggingface dataset:
Patent JP-2004192483-A (JP)
Title: Management method of distributed storage system
Inventor: NAKAMURA TOMOHIRO
IPC: G06F3/06
Filed: 2002-12-13
Abstract: <P>PROBLEM TO BE SOLVED: To read data at a high speed by avoiding the increase in a data transfer rate due to redundancy configuration, while ensuring high reliability by the redundancy configuration, in a distributed storage system.  <P>SOLUTION: When the data are stored into a plurality of storages, the high reliability is ensured by storing the double redundant data. When the data are read out from the plurality of storages, normally all data are recovered on the basis of the redundant data that have arrived at the point when either one of the redundant data are completed without waiting for the transfer of the remaining data, and the data readout is completed, thereby speeding up the data readout.  <P>COPYRIGHT: (C)2004,JPO&NCIPI
Patent JP-2004191860-A (JP)
Title: Device for compensating dispersion
Inventor: BABA AYAKO
IPC: G02B6/10
Filed: 2002-12-13
Abstract: <P>PROBLEM TO BE SOLVED: To provide a device for compensating dispersion that is able to control third-order dispersion and zero-dispersion wavelength, independently.  <P>SOLUTION: Using a first and a second optical fibers 1, 5, having fiber grating 2, 6 whose refraction index modulation periods change with a constant chirp amount in the reveres directions of each other, heating to control the dispersion of the fiber grating 2, 6 is made by using a heater 3, 7, whose interdigital electrodes 3a, 7a are set to the width to obtain the temperature distribution of a quadric function or a linear function along the fiber length. Thus, the second-order dispersion and third-order dispersion or third-order dispersion and zero-dispersion wavelength can be controlled independently, since the heater control 9 controls the temperature of the interdigital electrodes 3a, 7a.  <P>COPYRIGHT: (C)2004,JPO&NCIPI
Patent JP-2004196838-A (JP)
Title: Aluminum pigment and coating material using it
Inventor: NAGANO KEITA
IPC: C09D201/00
Filed: 2002-12-16
Abstract: <P>PROBLEM TO BE SOLVED: To provide an aluminum pigment excellent in reflection properties and heat resistance and suitable as a compounding ingredient of a coating material for forming a coating film functioning as a reflective surface of a vehicle lamp fitting.  <P>SOLUTION: The aluminum pigment has a water surface diffusion area of 5.0 m<SP>2</SP>/g or higher, a ratio of water surface diffusion area to average particle size of 1.0 or higher, and a leafing value of 80% or higher. The pigment, having the above-described water surface diffusion area, ratio of water surface diffusion area to average particle size, and leafing value, is prepared by controlling the shape of an aluminum powder before grinding or milling, the conditions of grinding or milling, and the like.  <P>COPYRIGHT: (C)2004,JPO&NCIPI
Patent JP-2004194731-A (JP)
Title: Ultrasonic trocar system
Inventor: ISHIKAWA MANABU
IPC: A61B17/00
Filed: 2002-12-16
Abstract: <P>PROBLEM TO BE SOLVED: To provide an ultrasonic trocar system in which a dilator and a sheath tube can be integrally held.  <P>SOLUTION: The ultrasonic trocar system 10 is provided with an ultrasonic vibrator 30, a probe 36 joined to the tip of the ultrasonic vibrator 30 for transmitting ultrasonic vibrations to a living tissue, a sheath 40 covering the probe 36 and the sheath tube 60 introduced and detained at the parietal in the state of being disposed at the outer periphery of the sheath. Then, the sheath tube 60 is provided with a sheath tube insertion part 62 and a sheath tube holding part 64 provided on the base end part of the sheath tube insertion part 62, whose side near the sheath tube insertion part 62 is expanded and held by an operator. Also, the dilator 50 interposed between the sheath tube 60 and the sheath 40 to expand a piercing hole and used in combination with the sheath tube 60 is included. The dilator 50 is provided with a dilator holding part 54 held integrally with the sheath tube holding part 64.  <P>COPYRIGHT: (C)2004,JPO&NCIPI
Patent JP-2004201407-A (JP)
Title: Magnet-saving type rotor of synchronous motor
Inventor: ASAI JIRO
IPC: H02K1/27
Filed: 2002-12-18
Abstract: <P>PROBLEM TO BE SOLVED: To provide a magnet-saving type rotor of a synchronous motor which has superior output characteristics.  <P>SOLUTION: In the magnet-saving type rotor, when the occupancy angle of a magnetic pole 5 of primary polarity which is occupied with a permanent magnet 2 is set as θ1, the occupancy angle of a magnetic pole 6 of secondary polarity which is occupied with a core 1 is set as θ2, and the occupancy angle of a vacancy 4 which occupies wholly a boundary region 7 between the magnetic pole 5 of primary polarity and the magnetic pole 6 of secondary polarity is made θ0(=θn-θ1-θ2), the occupancy angle θ2 is set in the range of 0.9-1.1 of the occupancy angle θ1. As a result, average magnetic flux density, i.e. effective magnetic flux of a gap between a stator/a rotor can be increased.  <P>COPYRIGHT: (C)2004,JPO&NCIPI
Patent JP-2004201001-A (JP)
Title: Mobile communication system and mobile communication control method
Inventor: YAGUCHI YOSHIHARU
IPC: H04W36/32
Filed: 2002-12-18
Abstract: <P>PROBLEM TO BE SOLVED: To maintain stable communication capable of reducing a whole load of a wireless system as well as of reducing electric power consumption of wireless mobile stations, by preventing the unwanted hand over control.  <P>SOLUTION: When the hand over control is performed by adding a position detecting section 114 to the wireless mobile station 100, by adding a direction detecting section 115 and a speed detecting section 115 to the wireless base stations 150 to 170, and by adding information of own station and of perimeter base stations to broadcast information 130; the number of times of the unwanted hand over control is reduced by considering positions, directions, and speeds in addition to control by means of a conventional downstream communication quality. Consequently, the whole load of the wireless communication system and the electric power consumption of the wireless mobile station 100 can be reduced.  <P>COPYRIGHT: (C)2004,JPO&NCIPI
Patent JP-2004200009-A (JP)
Title: Short arc type discharge lamp
Inventor: KATO MASAKI
IPC: H01J61/54
Filed: 2002-12-18
Abstract: <P>PROBLEM TO BE SOLVED: To improve lighting performance by steadily lighting the lamp at a low breakdown voltage in a short arc type discharge lamp which has a large distance between the lamp electrodes and also has high sealed gas pressure.  <P>SOLUTION: This is a short arc type discharge lamp which is constituted of an arc tube 1, a sealing tube 2 continuing with the arc tube 1, and a pair of electrodes 3 arranged inside the arc tube 1, and in which a supporting cylinder 8 for supporting the electrode bar 4 for supporting the electrode 3 is welded and formed inside a support part 7 made of a part of the sealing tube 2, and a trigger member 5 is provided on the outer surface of the support part 7 of the sealing tube 2. A metal or a metallic compound is mixed in at least the support part 7 of the sealing tube 2 and / or the supporting cylinder 8, and thereby, dielectric constant is increased.  <P>COPYRIGHT: (C)2004,JPO&NCIPI
Patent JP-2004206285-A (JP)
Title: Circumstance dependent type reminder notification device, method and program
Inventor: TAKATAMA HIROKAZU
IPC: G06Q10/06
Filed: 2002-12-24
Abstract: <P>PROBLEM TO BE SOLVED: To notify a reminder for complicated conditions on the basis of a plurality of circumstance specifying factors.  <P>SOLUTION: A circumstance dependent type reminder notification device 10 comprises: a plurality of circumstance detection means 10-1 to 10-4 detecting circumstance information from various circumstance specifying factors and outputting it to a circumstance gathering means; a circumstance gathering means 10-5 storing the circumstance information in a storage area and outputting the circumstance information to a circumstance analysis means; a reminder storage means 10-7 storing a reminder notification condition and notification data; a circumstance analysis means 10-8 comparing the circumstance information with the reminder notification condition, determining whether or not to notify the reminder and outputting the notification data to a reminder notification means in the case that the circumstance information satisfies the reminder notification condition; and a reminder notification means 10-9 outputting the notification data to a reminder presentation means. Thus, since the circumstance information are acquired from the plurality of circumstance specifying factors, reminder notification for the complicated circumstances which has not been obtained before is made possible. Also, in the reminder notification, it is possible to analyze the circumstance of a user, and give the notification suited to it.  <P>COPYRIGHT: (C)2004,JPO&NCIPI
Patent JP-2004204307-A (JP)
Title: Desulfurizing agent for molten steel
Inventor: NAITO KENICHIRO
IPC: C21C1/02
Filed: 2002-12-25
Abstract: <P>PROBLEM TO BE SOLVED: To provide a desulfurizing agent for molten steel, which is highly efficient and low cost, and uses no fluorine or having little fluorine content, in high efficiency and at a low cost.  <P>SOLUTION: In the desulfurizing agent for molten steel, containing iron oxide, CaO and AL<SB>2</SB>O<SB>3</SB>, the iron oxide of 0.5-6 mass% is contained as T.Fe, and contents of CaO and Al<SB>2</SB>O<SB>3</SB>are made to be in the ranges satisfying the formulas (1) and (2).  <P>COPYRIGHT: (C)2004,JPO&NCIPI
Patent JP-2004006628-A (JP)
Title: Method for manufacturing semiconductor device
Inventor: HONMA YOSHIO
IPC: B24B37/00
Filed: 2002-12-27
Abstract: <P>PROBLEM TO BE SOLVED: To enable CMP at high rate for copper or copper-based alloy while suppressing polishing scratches, dishing and erosion and particularly enable CMP for copper or copper-based alloy on an easily delaminating low dielectric constant insulation film.  <P>SOLUTION: A protection film excellent in protection characteristics and easily removed by mechanical friction is formed by using a plurality of corrosion inhibitors, for example, BTA and imidazole together in an abrasive free polishing solution.  <P>COPYRIGHT: (C)2004,JPO
Patent JP-2003223983-A (JP)
Title: Electric equipment
Inventor: IKEDA TADAHITO
IPC: F24C7/02
Filed: 2002-12-27
Abstract: <P>PROBLEM TO BE SOLVED: To provide an electric equipment having low power consumption by reducing the power supply in a circuit system when not in use such as waiting.  <P>SOLUTION: The electric equipment is provided with a load RL, a control means 9 to drive and control the load RL, and power supply circuits 1 to 6 to supply electric power to the control means 9. The control means 9 has a normal mode in which the electric power is supplied to the load RL, and a power saving mode in which the electric power supply to the load RL is restricted, and the normal mode and the power saving mode are changed according to a prescribed condition.  <P>COPYRIGHT: (C)2003,JPO
Patent JP-2004177912-A (JP)
Title: Fitting device for display body of water conducting panel
Inventor: INAOKA KIYOKAZU
IPC: G09F7/18
Filed: 2002-11-28
Abstract: <P>PROBLEM TO BE SOLVED: To provide a fitting device for fitting a display body showing a station name and an advertisement name, etc., to a water conducting panel mounted on a concrete wall of the ceiling of an underground structure, specially a subway yard.  <P>SOLUTION: This water conducting panel 1 comprises a 1st panel 2 and a 2nd panel 7. The 1st panel 2 is constituted by arranging many hollow blocks 4 at an upper part across a center partition plate 3, forming water conducting channels 5 between the hollow blocks 4, and bonding non-woven fabric 6 on the hollow blocks 4. The 2nd panel 7 is constituted by arranging many tilt ribs 9 successively between the partition plate 3 and a surface plate 8. The water conducting panel 1 is mounted and fixed to the concrete wall of a water leak place on the ceiling by a proper means, a flat plate type fixing plate 11 is inserted and fitted in a regularly triangular space part 10 formed of the tilt ribs 9 in the 2nd panel 7, and a nut 12 which is welded and fixed on the fixing plate 11 is threadably engaged with a bolt 13, which is projected down from the water conducting panel 1. Then a nut 15 is threadably engaged with the bolt 13 to mount a fitting member 14 for the display body, to which the display body is fitted by an optional means.  <P>COPYRIGHT: (C)2004,JPO
Patent JP-2004503135-A (JP)
Title: 車両通信ネットワークに接続された機器の作動方法
IPC: H04L12/403
Filed: 2001-06-16
Abstract: 車両通信ネットワークに接続された機器の作動方法を提案する。ここで遮断された機器はバスマネージャにより、電流供給線路を介して伝送される周波数パルスを用いて再起動される。一定時間この機器とのデータ通信が行われない場合は、この機器をバスマネージャ又は機器自体によって遮断できる。周波数パルスはこの遮断された機器の評価回路を用いて評価され、この評価回路は周波数選択フィルタ及び閾値検出器を有している。この周波数パルスは、１つの機器にだけ適用される周波数、又は機器群に対し適用される周波数、又は全ての機器に対する周波数において伝送可能である。これらの機器が分岐して配置されている場合は、遮断された機器に後続する全ての機器が同様に遮断若しくは再起動される。
Patent JP-2004505442-A (JP)
IPC: H01L21/66
Filed: 2001-07-04
Abstract: An integrated circuit (6) has a semiconductor die (47) and an integrated circuit configuration (16) realized on the semiconductor die (47) and situated within bounding faces (52, 53, 54, 55) of the semiconductor die (47), in which two conductor track sections (34, 35) have been provided, which issue from the integrated circuit configuration (16) and which each extend up to a bounding face (55) and which are required for the application of a useful signal (BR1) utilized for test purposes during the fabrication of the integrated circuit (6), and in which an additional conductor track section (41) has been provided, which is disposed adjacent the two conductor track sections (34, 35) and which issues from the integrated circuit configuration (16) and extends toward a bounding surface (55) and preferably up to this bounding face (55) and which serves for the application of a spurious signal (BR2) which interferes with testing.
Patent JP-2004510004-A (JP)
Title: 改良された加工性を有するａｂｓ成形材料
IPC: C08F285/00
Filed: 2001-09-10
Abstract: 本発明は、マトリックスポリマー、グラフトポリマーおよび特定の添加剤混合物を含有する組成物、成形体を製造するための該組成物の使用および該組成物から得られる成形体に関する。本発明は、該添加剤混合物自体にも関する。
Patent JP-2004520314-A (JP)
IPC: A61K31/7048
Filed: 2001-12-20
Abstract: 11,12 gamma lactone ketolides of the following formula: and pharmaceutically acceptable salts and solvates thereof, wherein R, R<SUB>1</SUB>, R<SUB>2</SUB>, and R<SUB>3 </SUB>are as described herein. The disclosure also relates to processes for the preparation of such compounds, to compositions containing them, and to their use in the therapy or prophylaxis of systemic or topical bacterial infections in a human or animal body.
Patent JP-2005504717-A (JP)
Title: ドーパミン関連性機能不全の治療法
IPC: A61P15/10
Filed: 2002-01-16
Abstract: 本発明は、ドーパミン関連性機能不全の治療法であって、短いが、不可欠な「オフ期間」を含む断続投与処方に従ってＤ １ ドーパミン受容体完全アゴニストを使用することを特徴とする治療法に関する。このＤ １ アゴニスト濃度は「オフ期間」において低下し、Ｄ １ ドーパミン受容体を、耐性の誘発を阻止するのに十分な期間最適未満のレベルに活性化する、アゴニストの血漿濃度を実現する。具体的に述べると、本法は、患者に対して、最大約６時間の半減期を持つＤ １ の完全アゴニストを定期的に、治療効果をもたらすほどにＤ １ ドーパミン受容体を活性化することができる第一血漿濃度を実現する投与量において投与する工程を含む。投与量は、各２４時間ごとに少なくとも１回低下させ、Ｄ １ ドーパミン受容体を、耐性の誘発を阻止するのに十分な期間最適未満のレベルに活性化する、アゴニストの、より低い第二の血漿濃度を実現する。
Patent JP-2004518671-A (JP)
Title: ニューロキニン受容体アンタゴニストとしてのテトラヒドロピラン誘導体
IPC: A61K31/41
Filed: 2002-01-16
Abstract: 本発明は式（Ｉ）の化合物（ここで、Ｒ １ 、Ｒ ２ 、Ｒ ３ 、Ｒ ４ 、Ｒ ５ 、Ｒ ６ 、Ｒ ７ およびＲ ８ は様々な置換基を表す）およびそれらの医薬適合性の塩に関する。これらの化合物は、うつ病、不安、痛み、炎症、片頭痛、嘔吐またはヘルペス後神経痛の治療または予防において特に有用である。
Patent JP-2004518024-A (JP)
Title: 圧縮されかつ熱処理された軟磁性の鉄ベース粉末合金
IPC: H01F27/255
Filed: 2002-01-25
Abstract: 本発明は、鉄ベース粉末の粒子がクロム含有層によって絶縁される、前記鉄ベース粉末を圧縮成形するステップを含む、圧縮された軟磁性粉末コアを準備するための方法に関する。次に、圧縮成形体は、鉄ベース材料の応力逃しおよび再結晶化を達成するために少なくとも６００℃の温度に加熱される。
Patent JP-2005503924-A (JP)
IPC: B21D37/14
Filed: 2002-01-22
Abstract: A conventional ball lock mechanism has been replaced with a wedge adapted to lock a tool, such as a punch, forming tool or die bushing in a retainer block in which the tool can be accurately positioned relative to the retainer block. The tool is released by moving the wedge away from the retainer block. The inclined surface of the wedge may be inclined upward or downward at an acute angle to the vertical, or the wedge may have both upwardly and downwardly inclined surfaces. The upper portion of the tool is preferably non-circular and is held within a tool cavity formed when the wedge is disposed in the retainer block. One surface of the wedge (its tool-mating surface) is adapted to correspond to the surface of the tool in contact with the wedge. The assembly of wedge slidably disposed within the retainer block is preferably used with a hardened backing plate rather than being secured directly to the die shoe. Several embodiments for securing the wedge in the retainer block are described in each of which the wedge is vertically translatable. The preferred method for forming the wedge is to cut it from a block of hardened tool steel with a wire electric discharge machine.
Patent JP-2004527110-A (JP)
Title: マイクロエレクトロニック構造体を洗浄する方法
IPC: G03F7/32
Filed: 2002-02-14
Abstract: 製造プロセスの間にマイクロエレクトロニックデバイスから水、含有する溶質および粒状物質を洗浄および除去する方法は、（ａ）基材上に水および含有する溶質を有する部分的に製造された集積回路、ＭＥＭのデバイス、またはオプトエレクトロニックデバイスを提供する工程と、（ｂ）高密度化二酸化炭素の洗浄組成物を提供する工程であって、前記洗浄組成物は二酸化炭素および、所望によるが好ましくは、洗浄添加剤を含む工程と、（ｃ）表面部分を高密度化二酸化炭素の乾燥組成物に浸漬する工程と、（ｄ）表面部分から洗浄組成物を除去する工程とを含む。
Patent JP-2004521914-A (JP)
IPC: A61P1/16
Filed: 2002-02-15
Abstract: The present invention relates to compounds of formula I which are antagonists of gonadotropin releasing hormone (GnRH) activity. The invention also relates to pharmaceutical formulations, the use of a compound of the present invention in the manufacture of a medicament, a method of therapeutic treatment using such a compound and processes for producing the compounds.
Patent JP-2004522125-A (JP)
Title: ファンユニット
IPC: F04D29/42
Filed: 2001-02-26
Abstract: 空気流通面内において、空気を複数の方向に発射する構造のファンブロワー(12)を備えるファンユニットが設けられる。第１および第２の案内表面(27A,27B)が、空気流の面内においてファンブロワーの第１の側に配置されて、壁の一部(25A)と一緒に、第１の空気流チャンネルに至る第１の空気流通路を規定し、第３および第4の案内表面(27C)(27D)が、空気流通面内において、ファンブロワー(12)の第２の反対側に配置されて、壁手段(25B)とともに、第２の空気流チャンネルに至る第２の空気流通路を規定し、案内表面(27A,27B,27C,27D)は、互いに同一である別の案内手段(24A,24B,24C,24D)に装着される。
Patent JP-2004519542-A (JP)
Title: 光分解耐性電着可能なコーティング組成物およびそれに関するプロセス
IPC: C25D13/06
Filed: 2002-02-04
Abstract: 本発明は、基板をコーティングするプロセスを提供し、このプロセスは、基質において電着可能な組成物を電着する工程、コートされた基板を加熱して、基板上のコーティングを硬化する工程、硬化した電着されたコーティングにわたって、１つ以上の色素含有組成物および／または１つ以上の色素非含有組成物を塗布して、基板にトップコートを形成する工程、およびコートされた基板を加熱して、トップコートを硬化する工程を包含する。この電着可能な組成物は、ゲル化されていないカチオン性塩の基を含有する樹脂および少なくとも部分的にブロックされた脂肪族ポリイソシアネート硬化剤から形成され、ここで塩の基は、ペンダントアミノ基および／または末端アミノ基から形成される。本発明は、電気泳動的の基板をコーティングするための改善したプロセスをさらに提供する。
Patent JP-2004536446-A (JP)
Title: 基板のプラズマ／液体併用洗浄
IPC: H01L21/00
Filed: 2002-03-07
Abstract: 基板を洗浄する装置および方法。基板（１１）はチャック（１２）に保持されるとともに回転させられ、大気圧プラズマジェット（１３）が、前記基板（１１）の所定領域にプラズマを当てる。ついで、液体リンス（１５）が前記所定領域に噴霧される。一実施の形態においては、所望により、前記所定領域の乾燥を手助けするために、ノズルがガスを当該所定領域に吹きつける。
Patent JP-2004533227-A (JP)
Title: 細胞骨格結合タンパク質
IPC: A61P19/00
Filed: 2002-03-25
Abstract: 本発明はヒトの細胞骨格結合タンパク質(CSAP)、およびCSAPを同定しコードするポリヌクレオチドを提供する。本発明はまた、発現ベクター、宿主細胞、抗体、アゴニストおよびアンタゴニストをも提供する。本発明はまた、CSAPの異常発現に関連する疾患を診断、治療または予防する方法をも提供する。
Patent JP-2004533437-A (JP)
Title: 抗うつ作用を持つ２，３−ジヒドロ−７Ｈ−［１，４］ジオキシノ［２，３−ｅ］インドールのインドールテトラヒドロピリジン誘導体
IPC: A61K31/4439
Filed: 2002-04-25
Abstract: 【課題】 【解決手段】式（Ｉ）の化合物は、うつ病、強迫性障害、パニック発作、全般性不安障害、性的機能不全、摂食障害、エタノールやコカインの乱用により生じる常習的な疾患など、中枢神経系疾患の治療に有用である。
Patent JP-2004536588-A (JP)
IPC: C12Q1/6897
Filed: 2002-05-27
Abstract: The invention relates to nucleic acids that encode reporter genes capable of being used in long term expression studies and vectors comprising them. Methods for producing vectors for long term expression and the expression systems that incorporate these reporter genes and other transgenes are also included in the invention, as well as the recombinant polypeptides encoded by the reporter genes.
Patent JP-2004212244-A (JP)
Title: Navigation system
Inventor: WATANABE TAKAYUKI
IPC: G01C21/26
Filed: 2003-01-06
Abstract: <P>PROBLEM TO BE SOLVED: To efficiently update map data provided in a navigation system.  <P>SOLUTION: A map data client determines an updating zone according to a present position or the like and, through an inter-vehicle communication device 14, contacts other navigation system 1 for the presence or absence of having newer version of mesh data than the mesh data stored in a map data storage unit 101. When there is a response, the mesh data are downloaded from the other navigation system 1, which is the source of the response, to update the mesh data in the map data storage unit 101. A map data server 110 provides the other navigation system 1 with response services to the contact and map data downloading services through the inter-vehicle communication device 14.  <P>COPYRIGHT: (C)2004,JPO&NCIPI
Patent JP-2004215073-A (JP)
Title: Radio communication device, radio communication method, and program
Inventor: SUGAYA SHIGERU
IPC: H04W16/02
Filed: 2003-01-07
Abstract: <P>PROBLEM TO BE SOLVED: To provide a radio communication device and a radio communication method in which transmission control in time division multiplex band reserved communications can be performed only by arbitrary terminal equipment even without an apparatus called a base station or access point.  <P>SOLUTION: A band reservation in a conventional radio communication system is not performed but a receiving slot corresponding to an amount of data to be received is set to perform required radio communications with the other radio communication apparatus present in the circumference. In each radio communication apparatus, only the number of slots received therein is managed to secure a band required for communications on the basis of its own judgement without requiring accurate synchronous processing with the other radio communication apparatus. In a data transmitting side radio communication apparatus 100S, an increase in the number of slots received in a receiving side radio communication apparatus 100R is also monitored by receiving a beacon and when the number of received slots increases, data are immediately transmitted, and reception confirmation (ACK) information from the receiving side radio communication device is redirected while being described in the beacon.  <P>COPYRIGHT: (C)2004,JPO&NCIPI
Patent JP-2004212829-A (JP)
Title: Optical switch
Inventor: KAZAMA ATSUSHI
IPC: G02B26/08
Filed: 2003-01-08
Abstract: <P>PROBLEM TO BE SOLVED: To realize an optical switch for more channels by efficiently utilizing the maximum swing angle capability of a mirror in a three-dimensional optical matrix switch using a micro mirror array.  <P>SOLUTION: A 1st mirror array in which a plurality of 1st mirrors and a plurality of 1st windows that have two rotary axes and can continuously control the tilt angle are arrayed, and a 2nd mirror array in which a plurality of 2nd mirrors and a plurality od 2nd widows that can maintain a certain tilt angle are arrayed, are arranged closely to the beam exit face of a fiber collimator array. A module is composed forming a light path in which the beam made to exit from the fiber collimator passes through the 1st windows and is sequentially reflected by the 2nd mirrors and the 1st mirrors, and is made to exit outside through the 2nd windows, and a multi-channel optical switch is composed by facing two pieces of the modules to each other. The tilt angle of the 2nd mirrors is determined so that the beam directs to the center of the faced mirror arrays in the state in which the 1st mirrors are not rotating.  <P>COPYRIGHT: (C)2004,JPO&NCIPI