baber/WOPTO huggingface dataset:
Patent JP-2009517210-A (JP)
Title: 選択的触媒還元用の多段システム
IPC: F01N3/08
Filed: 2006-10-10
Abstract: 本発明の第１の態様は、酸化窒素の排出を制御する方法を含む。この方法は、ＮＯｘを含む排気ガスの流れ（１１）を生成するステップと、その排気ガスの流れを排気流路（１２）に供給するステップとを含むことができる。この方法は、さらに、アンモニアを、第１選択的触媒還元用触媒（１８）の上流側の位置点において排気流路に供給するステップを含むことができる。この場合、第１位置点において供給されるアンモニアの量は、第１位置点においてすべてのＮＯｘを還元するに必要なアンモニアの有効量の約９０％未満である。さらに、アンモニアを、第１選択的触媒還元用触媒の下流側でかつ第２選択的触媒還元用触媒（２２）の上流側の第２位置点において、排気流路に供給することができる。
Patent JP-2009528582-A (JP)
Title: 無線認証
IPC: H04W12/08
Filed: 2006-12-13
Abstract: 保護されたリソースへのアクセスを許可する前にユーザを認証するための無線認証システムがここで説明される。認証デバイスは、保護されたリソースへのアクセスの意図の指示を受け取る。認証デバイスは鍵の要求を送る。無線ユーザデバイスおよび認証デバイスは鍵交換を採用できる。認証デバイスは、鍵交換を介して取得された１または複数の鍵が有効であるかどうかを判定し、１または複数の鍵が有効である場合に保護されたリソースへのアクセスを許可できる。認証デバイスは、鍵保有者検証などのユーザの識別のさらなる検証を要求できる。鍵および鍵保有者検証が有効である場合に、認証デバイスは、保護されたリソースへのアクセスを許可できる。
Patent JP-2009520895-A (JP)
Title: ガラス壁
IPC: E04B2/56
Filed: 2006-12-07
Abstract: 少なくとも２つの断熱グレージング２を含む、壁または仕切りとして使用されるガラス壁１であって、それぞれのグレージング２が、気体を含有するエアギャップにより隔てられ、面の１つ３０によりガラス板の端面に固定されている少なくとも１つの実質的に平坦なインサート３により組み立てられている、少なくとも２つのガラス板２０、２１を含むこと、およびグレージング２が、グレージングのそれぞれに面して装着されたインサート３と協働する固定手段４によって、互いに固定されることを特徴とする、壁。
Patent JP-2009520598-A (JP)
Title: 基板上に物質を位置付けるインクジェット装置、基板の上に物質を位置付ける方法、及び、インクジェット装置の使用
IPC: G01N37/00
Filed: 2006-12-19
Abstract: 本発明は、基板の上に物質を位置付けるためのインクジェット装置を提供し、当該装置は、少なくとも、物質を含む液滴を噴出するよう設けられるノズルを含み、当該装置は、基板が、基板上への液滴の着座前に、着座中に、及び／又は、着座後に加熱され得るよう、少なくとも１つの加熱素子をさらに含む。
Patent JP-2009521856-A (JP)
Title: バックログ関連情報を伝達するための方法および装置
IPC: H04W72/12
Filed: 2006-12-20
Abstract: 例えば、ワイヤレス端末により送信されるのを待っているアップリンクトラフィックの量を示すバックログ情報のような、バックログ情報の効率的な伝達に対する方法および装置を記述する。デルタバックログレポートが、絶対的なバックログレポートに加えて使用され、それゆえに、制御シグナリングオーバーヘッドを減少させる。デルタバックログレポート中で伝達される少なくともいくつかの情報は、以前に送信されたバックログレポートを参照している。アップリンクトラフィックチャネルセグメントのスケジューリングを決定する際に、基地局は、ワイヤレス端末から受信したバックログ情報を使用する。 【選択図】      図４
Patent JP-2009524693-A (JP)
Title: 非再循環式臓器灌流装置
IPC: A01N1/02
Filed: 2007-01-26
Abstract: 本発明は、灌流液容器から灌流液を移動させる圧縮部、灌流液の流速調整部、臓器と灌流液量を受け取る臓器容器、流速調整部と臓器血管系間の液体接続を形成する臓器コネクタ、および使用済み灌流液を受け取る廃棄容器からなる、生体外臓器の保存と搬送に使用するポータブル型臓器灌流装置に関する。本装置の構成部は、医療用チューブで接続されており、体外移植臓器と灌流液は低温に維持される。本発明による装置は、ヒト心臓を16時間以上生存できるように意図された自給式ユニットである。
Patent JP-2009526353-A (JP)
Title: 無線周波数イオンガイド
IPC: H01J49/06
Filed: 2007-02-08
Abstract: ２つ以上のイオン収束要素および気体チャネリングスリーブを有するイオンガイドが記述される。気体チャネリングスリーブ内のイオン移送空間は、ポンプポートと流体連絡している。吸引デバイスは、ポンプポートを介してイオン移送空間から気体を吸引するために用いられ、気体の流れを作る。イオン移送空間におけるイオンは、気体の流れによって、イオンガイドのイオン入口端部からイオン出口端部に移送される。いくつかの例は、ロッドがイオン収束要素として用いられる多重極イオンガイドを含む。気体チャネリングスリーブはロッドの周りに合っている。別の例において、環状体またはリング形状のイオン収束要素がイオン収束要素として用いられる。別の例において、イオン収束リングのセットは、絶縁体の間に取り付けられ、気体不浸透性側壁を有するシリンダーを形成する。シリンダー自体は、気体チャネリングスリーブとして用いられる。
Patent JP-2009529533-A (JP)
Title: 光活性の化合物および組成物、ならびにそれらの使用方法
IPC: A61P35/00
Filed: 2007-03-09
Abstract: 光活性の化合物および組成物、ならびにその使用方法が提供される。例えば、本発明の組成物は、１型光線療法、２型光線療法、または１型光線療法と２型光線療法の組み合わせで使用できる。本発明の第１の態様は、一般式Ｅ１−Ｌ−Ａｒ−Ｘ−ＰＡ（式中、Ａｒは光感受性物質であり、ＰＡは光活性化合物であり、Ｅ１、ＬおよびＸのそれぞれは任意選択である）を有する化合物に関する。光感受性物質（Ａｒ）は、一般に大きな環式環または芳香環を含む発色団である。光感受性物質は、直接または間接的にＥ１に結合していてよく、Ｅ１は、一部の実施態様では化合物を特定部位に向かわせるよう選択することができ、他の実施態様では水素とすることができる。
Patent JP-2010159901-A (JP)
Title: Refrigerator
Inventor: HONDA KIMIYASU
IPC: F25D23/00
Filed: 2009-01-07
Abstract: <P>PROBLEM TO BE SOLVED: To solve such a problem that a decomposition amount of agricultural chemicals is not sufficient when a conventional composition is used.  <P>SOLUTION: A refrigerator includes a storage room, an ozone generator 210 for supplying ozone to the storage room, and a light source capable of irradiating a light with 315-380 nm wave length and a light with 780 nm-1 mm wave length to food stored in the storage room. The agricultural chemicals remaining in vegetables can be effectively decomposed thereby. Accordingly, safe food can be provided to consumers.  <P>COPYRIGHT: (C)2010,JPO&INPIT
Patent JP-2010158212-A (JP)
Title: Cultivation experiment pot for paddy field crop
Inventor: ONO SHUJI
IPC: A01G22/22
Filed: 2009-01-09
Abstract: <P>PROBLEM TO BE SOLVED: To provide a cultivation experiment pot for paddy field crops, facilitating the cultivation management of paddy field crops, surely securing a water supply and drainage function, and having a light weight and durability.  <P>SOLUTION: The cultivation experiment pot for paddy field crops is formed in a container-like form whose upper part is opened, and includes a bottom, sidewalls arranged in a standing condition from the bottom, and a holding part for holding soil for planting paddy field crops. In the cultivation experiment pot for paddy field crops, the sidewalls are set through each with a lower drain outlet at a height close to a floor of the holding part and an upper drain outlet on a place higher than at least a surface of soil to be held in the holding part.  <P>COPYRIGHT: (C)2010,JPO&INPIT
Patent JP-2010159013-A (JP)
Title: Mounting structure of clip for airbag
Inventor: NAKAZATO HIROSHI
IPC: B60R21/20
Filed: 2009-01-09
Abstract: <P>PROBLEM TO BE SOLVED: To provide a mounting structure of a clip for an airbag capable of enlarging a space for permitting the deployment of the airbag.  <P>SOLUTION: In the mounting structure of the clip for mounting a garnish G on a vehicle body panel P, the clip comprises a pin member 1 mounted to one of the garnish and the vehicle body panel, and a grommet member 2 mounted to the other of them. The pin member has a head 3 and a leg 4. The leg has a first locking part 8 for holding the garnish in a storage state of the airbag, and a second locking part 9 for holding the garnish in a deployed state of the airbag. The grommet member has a flange 13 and a barrel 15. The barrel has a first engagement part for making the first locking part engaged with a second engagement part engaged with the second locking part. In the deployed state of the airbag, the second locking part is engaged with the second engagement part so as to be oscillated, and the engagement oscillates the pin member or the grommet member to enlarge a space S to be demarcated between the garnish and the vehicle body panel.  <P>COPYRIGHT: (C)2010,JPO&INPIT
Patent JP-2010158644-A (JP)
Title: Sorter
Inventor: YAMADA HISAYA
IPC: B65G47/20
Filed: 2009-01-09
Abstract: <P>PROBLEM TO BE SOLVED: To provide a sorter for sorting objects to be sorted such as fruits and vegetables, which sorter can be stored in a compact storage space when it is not used for a sorting operation even though its feed hopper for feeding objects to be sorted to trays is disposed in a manner protruding from both sides of the sorter to outside during its sorting operation.  <P>SOLUTION: The sorter 1 including a plurality of trays 2 whereon objects to be sorted are placed, a transfer means 3 for transferring the plurality of trays 2, and a feed hopper 4 for feeding objects to be sorted to the plurality of trays 2, is constructed in such a manner that the feed hopper 4 is slidably disposed in a casing wherein the transfer means 3 is disposed so as to enable the feed hopper 4 to move from a working position to a storing position by causing the same to slide in the direction of transferring the trays 2.  <P>COPYRIGHT: (C)2010,JPO&INPIT
Patent JP-2010165704-A (JP)
Title: Semiconductor laser and method of manufacturing the same
Inventor: MATSUDATE MITSUKI
IPC: H01S5/028
Filed: 2009-01-13
Abstract: <P>PROBLEM TO BE SOLVED: To provide a compact, low-cost and high-performance semiconductor laser device effective as a light source for a display by expanding an oscillation wavelength width without using other external components for speckle reduction.  <P>SOLUTION: The semiconductor laser includes a resonator structure including an active layer and a reflecting film formed on the end face of the resonator structure for expanding the oscillation wavelength width, and the reflectance spectrum of the reflecting film has the minimum value near the gain peak wavelength of the active layer.  <P>COPYRIGHT: (C)2010,JPO&INPIT
Patent JP-2010164322-A (JP)
Title: Method and device for detecting remaining capacity of battery, and secondary battery system
Inventor: YAMAGUCHI MASAO
IPC: H01M10/48
Filed: 2009-01-13
Abstract: <P>PROBLEM TO BE SOLVED: To provide a method for detecting the remaining capacity of a battery which enables accurate compensation of the remaining capacity of the battery.  <P>SOLUTION: The remaining capacity of a secondary battery is determined from a discharge current of the secondary battery, while the remaining capacity of the secondary battery is compensated to be a set N% remaining capacity when a period in which the battery voltage of the secondary battery is below N% remaining capacity voltage set according to a discharge current value reaches a determination time set according to the discharge current value. On the occasion, the longest determination time out of the determination time set sequentially according to the discharge current value during a period of measurement of the time when the battery voltage is below the N% remaining capacity voltage, is used for determination of the duration in which the battery voltage is below the N% remaining capacity voltage.  <P>COPYRIGHT: (C)2010,JPO&INPIT
Patent JP-2010165396-A (JP)
Title: Guide shaft supporting device of optical disk device
Inventor: AOKI TAKESHI
IPC: G11B21/02
Filed: 2009-01-14
Abstract: <P>PROBLEM TO BE SOLVED: To provide a guide shaft supporting device provided for guiding movement operation of an optical pickup device.  <P>SOLUTION: In the guide shaft supporting device, bearings 25, 26 rotatably supporting the rotary shaft 21 of a spindle motor 3 rotating a turntable 20 are fixed, and a first supporting member 14 and a second supporting member 18 regulating fixing positions of a main guide shaft 13 and a sub-guide shaft 17 which are provided for moving the optical pickup device in the radial direction of an optical device are integrally formed at a motor base plate 2 constituting the spindle motor 3.  <P>COPYRIGHT: (C)2010,JPO&INPIT
Patent JP-2010162112-A (JP)
Title: Magnetic resonance imaging apparatus
Inventor: TAKIGUCHI KENJI
IPC: A61B5/055
Filed: 2009-01-14
Abstract: <P>PROBLEM TO BE SOLVED: To provide a technology of surely reducing the influence of a respiratory body motion by a simple method independent of imaging timing, in magnetic resonance imaging.  <P>SOLUTION: In a subject to be displaced by periodic body motions such as a respiratory motion or a cardiac motion, echo signals collected in a specified body motion time phase are gathered in a specified k space and images are reconstructed from the result. The body motion time phase of the subject is discriminated by using sensitivity distribution of a plurality of sub coils configuring a reception coil and specifying the displacement of the subject on the basis of the peak value of the echo signals received in the respective sub coils.  <P>COPYRIGHT: (C)2010,JPO&INPIT
Patent JP-2010163815-A (JP)
Title: Installation structure of solar cell module
Inventor: FUIRI YOSHIO
IPC: E04D13/18
Filed: 2009-01-16
Abstract: <P>PROBLEM TO BE SOLVED: To provide an installation structure of a solar cell module used for installing a panel-shaped solar cell module on a roof which is used for photovoltaic power generation, which makes possible installation without projecting the solar cell module on the roof and without applying an excessive load to a roof structure, and which can prevent rainwater from entering the base material of the roof.  <P>SOLUTION: The solar cell module 1 is supported by a support member 5 attached to the base material 6 of the roof, and both the part of the base material 6 which corresponds to the installation surface S of the solar cell module 1 and the support member 5 are covered with a watertight cover material 2 having a plate or sheet shape. Then watertight structures 3, 4 are placed between the solar cell module 1 and the surrounding finishing materials 9 of the roof.  <P>COPYRIGHT: (C)2010,JPO&INPIT
Patent JP-2010165617-A (JP)
Title: Battery unit
Inventor: KAHARA TETSURO
IPC: H01H37/76
Filed: 2009-01-19
Abstract: <P>PROBLEM TO BE SOLVED: To provide a battery unit easy to manufacture and capable of reliably protecting an electronic circuit, concerning one mainly used for various electronic equipment.  <P>SOLUTION: By providing a substantially frame-shaped insulating part 15 on the top surface of a land 14 where each terminal 3A of a thermal fuse 3 is soldered, surplus solder 6B in a flux 7 is solidified on the top surface of the land 14 outside the insulating part 15 as the terminal 3A of the thermal fuse 3 is soldered to the land 14, so that soldering balls or the like are prevented from occurring, and time and labor for separate cleaning or the like can be saved to facilitate manufacturing, and at the same time, short circuiting or the like between electrodes of a switching element 2 can be prevented, and thus, a battery unit capable of sure protection of an electronic circuit can be obtained.  <P>COPYRIGHT: (C)2010,JPO&INPIT
Patent JP-2010167504-A (JP)
Title: Method of managing cutting blade
Inventor: NORIMOTO TAKASHI
IPC: H01L21/301
Filed: 2009-01-20
Abstract: <P>PROBLEM TO BE SOLVED: To provide a method of managing a cutting blade capable of cutting a wafer at a desired depth of cut if the temperature in a room where a cutting apparatus is installed.  <P>SOLUTION: In the method of managing the cutting apparatus including a chuck table; a cutting means for cutting the wafer; a cutting water supply means 56; a temperature controller 104 for controlling the temperature of the cutting water; a blade detection means for detecting wear of a cutting edge of the cutting blade; and a reference position detection means for detecting a reference position of the cutting blade, the method includes a temperature detection step of detecting a temperature 102 of the cutting water and a temperature 100 in the room; a reference position detection step of detecting the reference position of the cutting edge of the cutting blade; a reference position correction step of correcting the reference position of the cutting edge by detecting the amount of wear of the cutting edge and obtaining a difference from the reference position of the cutting edge; and a temperature control step in which the temperature controller controls the temperature of the cutting water when a room temperature different from the room temperature obtained during the execution of the reference position detection step is detected by performing the temperature detection step of detecting the cutting water temperature and the room temperature.  <P>COPYRIGHT: (C)2010,JPO&INPIT
Patent JP-2009080511-A (JP)
Title: Impulse response measuring device and impulse response measuring method
Inventor: KUROMOTO SHINICHI
IPC: G10K15/00
Filed: 2009-01-22
Abstract: <P>PROBLEM TO BE SOLVED: To generate a suitable time stretched pulse of a power spectrum according to noise in sound space.  <P>SOLUTION: In an impulse response measuring device 1 in which evaluation sound is generated by inputting an evaluation sound signal at a sound generating point which is arranged in the sound space R, and impulse response is measured between the sound generating point and a sound receiving point, on the basis of a measured signal which is measured at the sound receiving point and the evaluation sound signal, the time stretched pulse according to the noise in the sound space is generated as the evaluation sound signal, on the basis of equation: d<SP>2</SP>P(ω)/dω<SP>2</SP>∝¾A(ω)¾<SP>2</SP>, wherein: an amplitude characteristic in a frequency domain of the evaluation sound signal is A(ω); and a phase characteristic is P(ω).  <P>COPYRIGHT: (C)2009,JPO&INPIT
Patent JP-2010166891-A (JP)
Title: Oil-in-water emulsified oil-and-fat composition
Inventor: KUTARI SHUNSUKE
IPC: A23C13/00
Filed: 2009-01-26
Abstract: <P>PROBLEM TO BE SOLVED: To provide an oil-in-water emulsified oil-and-fat composition rich in flavor (strong taste and smell), having flesh feeling, stable in emulsification and satisfactorily sterilized; and to provide a method for producing the composition.  <P>SOLUTION: The oil-in-water emulsified oil-and-fat composition is such that a furosine content in the oil-in-water emulsified oil-and-fat composition treated with heat at 130-150°C is ≤60 mg based on 100 g of protein, and a 2-butanone content in the oil-in-water emulsified oil-and-fat composition is ≥0.1 ppm.  <P>COPYRIGHT: (C)2010,JPO&INPIT
Patent JP-2010178405-A (JP)
Title: Method of setting current limit value for pm motor drive device
Inventor: MOCHIZUKI OSAMU
IPC: H02P23/00
Filed: 2009-01-27
Abstract: <P>PROBLEM TO BE SOLVED: To suppress an increase and decrease in a voltage and a current associated with a change in magnet temperature from being exerted on a current limit value to continue a constant motor output, in a PM motor drive device.  <P>SOLUTION: A current limit value setting method for the PM motor drive device limits the current of the PM motor 3 in a protective circuit 5, when the current of the PM motor 3 is over the current limit value. In the protective circuit 5, the increase and decrease in the voltage and current associated with the magnet temperature change in the PM motor 3 is put in a table sheet at a preliminary driving of the PM motor 3 and the current limit value at each magnet temperature is calculated based on the table sheet and stored at a preliminary driving. In driving the PM motor 3, the magnet temperature of the PM motor 3 is obtained, and is automatically corrected to the current limit value in the magnet temperature obtained at driving from the current limit value in each magnet temperature stored at a preliminary driving.  <P>COPYRIGHT: (C)2010,JPO&INPIT
Patent JP-2009217250-A (JP)
Title: Double patterning method
Inventor: TAKEMURA KATSUYA
IPC: G03F7/40
Filed: 2009-02-03
Abstract: <P>PROBLEM TO BE SOLVED: To attain double patterning by forming an extremely fine space pattern by transferring a fine line of a first resist to a second resist by positive/negative reversal and carrying out resolution of the second resist.  <P>SOLUTION: This double patterning method includes processes for applying a chemically amplified positive resist composition onto a processable substrate to form a resist film; obtaining a first positive pattern on the film; providing the positive pattern with resistance to an organic solvent used for a reversal film forming composition; and forming a reversal film of a second chemically amplified positive resist material to obtain a second positive pattern on the film, wherein an alkaline developer process for obtaining a second positive resist pattern includes dissolving away the first positive pattern reversed to be soluble in the alkaline developer and achieving reversal transfer of the first resist pattern in a process of obtaining a second pattern. Consequently, even if the second resist film for the reversal film is formed using a solvent containing a hydroxy group or a high polar solvent, the second resist material can be embedded in a clearance without damaging the first positive resist pattern, and the first positive pattern can be dissolved away in the alkaline developer, and positive/negative reversal of high accuracy can be carried out in a simple process.  <P>COPYRIGHT: (C)2009,JPO&INPIT
Patent JP-2010179379-A (JP)
Title: Drilling method
Inventor: SAKAMOTO SHIGEHIKO
IPC: B23C3/00
Filed: 2009-02-03
Abstract: <P>PROBLEM TO BE SOLVED: To form a high quality hole suppressing burring, scuffing, delamination, or the like with respect to a CFRP material, a titanium alloy, an aluminum alloy, or the like.  <P>SOLUTION: A ball end mill or a tool with an outer circumference corner part of a cutting blade provided on a tip comprising a convex curve is used as a cutting tool 1, and the cutting tool 1 is moved around on a circular orbit 8 concentric with a center of a machining hole while rotating it around an axis C of the tool, and by moving the cutting tool 1 in an axial direction, a hole with a larger diameter D than a diameter of the tool is formed.  <P>COPYRIGHT: (C)2010,JPO&INPIT
Patent JP-2010181474-A (JP)
Title: Thin film transistor array substrate, reflection type liquid crystal display device and method of manufacturing the same
Inventor: ITO YASUETSU
IPC: G02F1/1335
Filed: 2009-02-03
Abstract: <P>PROBLEM TO BE SOLVED: To provide a method of manufacturing a reflection type liquid crystal display device achieving high reliability while attaining reduction of a manufacturing process and enhancement of yield.  <P>SOLUTION: The method of manufacturing the reflection type liquid crystal display device includes a step of forming an irregular pattern on a surface of an organic flattening film 5 and a first organic film pattern 5B having a level difference structure in the thickness direction by adjusting irradiation intensity according to a first region A1 where an opening is formed in at least an interlayer dielectric 4, a second region A2 where the interlayer dielectric 4 is exposed and a third region A3 where the irregular pattern is formed on the surface of the organic flattening film 5, s step of forming the opening in the interlayer dielectric 4 in the first region A1, a step of forming a second organic film pattern 5C by reducing film thickness of the organic flattening film 5 thereby removing the organic flattening film 5 of the second region A2 and a step of forming a transparent conductive thin film 31 and a reflection conductive thin film 32 by a halftone exposure technique or the like. At least a terminal and peripheral regions 53 and 54 thereof are included as the second region.  <P>COPYRIGHT: (C)2010,JPO&INPIT
Patent JP-2010182751-A (JP)
Title: Nonvolatile semiconductor storage and method of manufacturing the same
Inventor: NAKAGAWA KENICHIRO
IPC: H01L27/115
Filed: 2009-02-03
Abstract: <P>PROBLEM TO BE SOLVED: To provide a high-quality nonvolatile semiconductor storage that makes compatible gaining both a high speed and a high degree of integration, and to provide a method of manufacturing the nonvolatile semiconductor storage.  <P>SOLUTION: In a split-gate type nonvolatile semiconductor storage having a FINFET structure, one and the other of a selective gate electrode and a memory gate electrode provided in directions that cross a plurality of grooves provided in parallel with the surface of a semiconductor substrate are formed first and on the sidewall of the gate electrode formed first, respectively, and source/drain regions are provided at projections between the grooves, while sandwiching the selective gate electrode and the memory gate electrode. In the flip-gate type nonvolatile semiconductor storage, a difference (difference between H2 and H3) between the height of the surface of the selective gate electrode and that of the surface of the memory gate electrode is set to not less than a difference H1, between the height of the surface of the insulating layer provided on a bottom face of the grooves and that of the surface of the source/drain regions.  <P>COPYRIGHT: (C)2010,JPO&INPIT
Patent JP-2010180634-A (JP)
Title: Multi-stage ladder
Inventor: FUJII KENJI
IPC: E06C1/12
Filed: 2009-02-06
Abstract: <P>PROBLEM TO BE SOLVED: To provide a multi-stage ladder which enables a worker to adjust the length of a ladder supporting portion without performing complicated work.  <P>SOLUTION: Characteristically, this multi-stage ladder includes: a ladder body 2 to which a plurality of ladder bodies including an upper ladder 4 arranged on an upper side and a lower ladder 3 arranged on a lower side are telescopically connected; and the ladder supporting portion 5 which is telescopically formed, the upper-end side of which is connected to the upper ladder 4, and the lower-end side of which can be attached to/detached from the lower ladder 3.  <P>COPYRIGHT: (C)2010,JPO&INPIT