baber/WOPTO huggingface dataset:
Patent JP-2005528605-A (JP)
Title: マルチパス干渉測定
IPC: G01M11/02
Filed: 2002-05-30
Abstract: 光導波型回路の一部におけるマルチパス干渉を測定するための方法及び装置が開示されている。装置は、別々の光通路を進んでいる干渉する信号がそれぞれの偏光状態が揃えられた状態で干渉することを保証するための偏光スクランブラを備える。偏光スクランブラの使用は、あらかじめ選択された時間長にわたって測定された最大マルチパス干渉を記録することと相まって、試験下にある光導波型回路の部分の性能を最も表すマルチパス干渉値を与える。
Patent JP-2005531949-A (JP)
IPC: H04L12/56
Filed: 2002-06-07
Abstract: The invention relates to a method for transmitting IP packets between a radio network controller (RNC) ( 2 ) and another element of a mobile radio network. Said method is characterised in that an IP packet to be transmitted contains a first code-decoder mode indication (TFCI, AMR) which indicates the coder-decoder mode (TFCI, AMR) used to transmit the IP packet from a mobile terminal (MT) ( 1 ) to a first radio network controller (RNC) ( 2 ); a coder-decoder mode indication exchange system (DCF) ( 5 ) through which an IP packet passes on the way through the mobile radio network exchanges the first coder-decoder mode indication (RFCI, AMR) contained in the data packet, with a second coder-decoder mode indication (RFCI requested) which is known to another element or mobile terminal (MT) ( 1 ) and corresponds to the first coder-decoder mode indication according to a table stored in the coder-decoder mode indication exchange system ( 5 ); and the IP packet containing the second coder-decoder mode indication is sent on to other elements.
Patent JP-2005531988-A (JP)
IPC: H04L12/56
Filed: 2003-06-27
Abstract: Data frames are converted to a format suitable for transparent, flexible concatenated transport such that a network element not supporting flexible concatenation may transparently pass the data frames. Flexible concatenation involves nonstandard data frames such as an STS- 4 c or an STS-Nc in which the time slots do not occupy rigidly defined contiguous time slots. In transparent flexible concatenation, the pointer from the parent time slot is used for each of the child time slots and the concatenation identifier is set to indicate no concatenation. In this way, the concatenated data appears to be a series of conventional STS- 1 s such that pointer processing may be successfully accomplished even by a network element not capable of handling non-standard concatenations. A downstream receive framer reconstructs the original STS-Nc based on the N STS- 1 s and a concatenation table the contents of which are shared between the transmit framer and the downstream receive framer.
Patent JP-2005534764-A (JP)
IPC: C10L1/188
Filed: 2003-08-05
Abstract: The present invention relates to a fatty acid composition which contains an effective amount of fatty acids providing improved low temperature stability of the composition. The present invention also relates to a process for producing a fatty acid composition wherein the process comprises the steps of selecting a crude tall oil having a fatty acid concentration and type capable of providing low temperature stability, distilling said crude tall oil to provide a fatty acid composition containing an effective amount of tall oil fatty acids providing low temperature stability. The fatty acid composition of the present invention is used as a fuel additive
Patent JP-2005536957-A (JP)
Title: 音響効果データを記憶する記憶装置を備えた遠隔通信端末機器
IPC: H04M1/7246
Filed: 2003-08-01
Abstract: 本発明は、音響的なユーザ情報、例えば音声情報を記録する記録装置と、音響効果データを記憶する記憶装置（４２）と、記録装置（２０）および記憶装置（４２）と接続されており、記録装置（２０）を用いて記録された音響的なユーザ情報を記憶装置（４２）に記憶されている音響効果データを使用してミクサ動作状態時に変更するミクサ装置（４０）とを包含する遠隔通信端末機器（１０）に関する。この遠隔通信端末機器（１０）はさらにミクサ装置（４０）と接続されている制御装置（４４）を有し、この制御装置（４４）はミクサ動作状態が開始されると、このミクサ動作状態を所定の動作期間の経過後に再び終了させる。
Patent JP-2005537002-A (JP)
Title: 新規な一体化したマイクロアレイ分析
IPC: C12Q1/68
Filed: 2003-09-01
Abstract: 本発明は、以下の段階を含む、核酸分子を含む試料中に存在する検体核酸を同定するための方法に関する：(a) 多孔性基体を準備する段階であって、上記基体は複数のマイクロチャンネルを含み、上記マイクロチャンネルは、その上に上記試料中に存在する検体に結合することができる標的分子が固定されており、上記チャンネルはさらに、検体増幅成分、レポーターシステム；および上記試料；が提供され；(b) 上記試料中に存在する検体核酸分子を増幅する段階；および(c) 段階(b)で得られた増幅された検体核酸、上記基体のチャンネル上に固定された上記標的分子、および上記レポーターシステムとの間で結合を生じさせる段階であって、上記レポーターシステムにより、上記標的分子と上記検体核酸との間で結合が生じたかどうかを検出することができる段階。本発明はさらに、上記方法の使用、さらには上記方法を実行するためのキットに関する。
Patent JP-2005539437-A (JP)
Title: 無線リソース制御システム
IPC: H04L12/56
Filed: 2003-09-10
Abstract: 一実施例では、多段無線リソース制御システムは、複数の階層の各々における状態を監視し、監視中に収集されたデータに基づき各階層におけるリソースを制御する。無線リソース制御システムの複数の階層は、特定の無線装置に関連する局所的階層と無線ネットワークに関連する大域的階層を少なくとも有する。
Patent JP-2006503038-A (JP)
Title: 融合ヘテロビシクロ置換フェニル代謝型グルタミン酸−５修飾因子
IPC: A61K/
Filed: 2003-09-09
Abstract: 融合ヘテロビシクロ部分で置換されているフェニル化合物は、精神医学的および気分障害、例えば、分裂病、不安、うつ病、およびパニックの治療に加えて、疼痛および他の疾患の治療において有用であるｍＧｌｕＲ５修飾因子である。
Patent JP-2006500680-A (JP)
Title: ３次元手書き認識のための方法及びシステム
IPC: G06F3/033
Filed: 2003-09-18
Abstract: 本発明は、ユーザが、３Ｄ空間において、何も触らずに、また、パッド又はタブレットといった物理媒体を必要とせず言葉又は文字を自由に書くことを可能にする３Ｄ手書き認識システムを提供する。ユーザの３Ｄ空間における手書き入力は、システムの入力装置により追跡され、入力装置は、対応３Ｄ動作データを生成し、この３Ｄ動作データをシステムの認識装置にワイヤレスに転送する。３Ｄ動作データは変換され、２Ｄ面上にマッピングされ、手書き認識のための対応２Ｄ画像を生成する。このようにして、ユーザの入力は、任意の画面、パッド、又は平面に決して制限されることなく、ユーザは、より多くの柔軟性とより楽しい書込み経験を有することになる。
Patent JP-2006515441-A (JP)
Title: エレメントのリストを記憶するための装置、１つの係る装置におけるエレメントを記憶する方法
IPC: G06F12/12
Filed: 2003-10-14
Abstract: 本発明は、最後に与えられたアイテムＪを記憶することが意図されるアイテムのリストを記憶するための装置５に関する。本装置は、第一のメモリ３と、第一のメモリがいっぱいであるとき、かつ新たなアイテムが記憶されなければならないとき、第一のメモリに記憶されるアイテムをランダムに選択し、この選択されたアイテムを移動し、与えられた新たなアイテムを記憶するための役割を果たす手段を備えている。また、本発明は、かかる装置５にアイテムＪを記憶するための方法に関する。
Patent JP-2006511486-A (JP)
IPC: C07D401/10
Filed: 2003-10-10
Abstract: The invetion relates to compounds of formula (I) wherein R<SUP>1</SUP>, R<SUP>2</SUP>, R<SUP>3</SUP>, R<SUP>4</SUP>, R<SUP>5</SUP>, R<SUP>6</SUP>, R<SUP>7 </SUP>and R<SUP>8 </SUP>are as defined in the description, their use as medicament, pharmaceutical compositions containing them and processes for their preparation.
Patent JP-2006510027-A (JP)
Title: 紫外線（ｕｖ）光の強度を測定するための装置及び方法
IPC: G01J1/42
Filed: 2003-12-16
Abstract: 【課題】紫外線（ＵＶ）光の強度を測定するための装置及び方法を提供する。 【解決手段】光の強さを測定する装置及び方法にプローブを用いる。このプローブ100は、約180ｎｍ〜約270ｎｍの波長範囲を監視するように形成され、光を集めることができる反射拡散層120と、この反射拡散層と光学的に伝達する一端部を有し、かつ約180ｎｍ〜約270ｎｍの波長で約５０％以上の透過率を有する導波管130と、この導波管の他端部と光学的に伝達するセンサ150と、前記導波管及びセンサの中間に介在し、約２７０ｎｍより大きい波長を取り除きかつ約180ｎｍ〜約270ｎｍの波長で５０％以上の透過率を有するフィルタ140とを含む。
Patent JP-2005176850-A (JP)
Title: Information processing equipment and method, and recording medium
Inventor: SHIBUSAWA SAKAE
IPC: A01G7/00
Filed: 2005-01-11
Abstract: <P>PROBLEM TO BE SOLVED: To provide a method for assisting, regardless of experience amount of a farmer, to determine timings and contents of farm works, proper for every paddy field.  <P>SOLUTION: A soil map 47 stores informations on the soil of the field of a paddy field, based on the ranks of classified informations on the paddy field and also ranked by a time unit and an area unit of the paddy field. A farm working supporting part 48 decides, based on informations on the soil, a plan for the work to be performed in the paddy field. The method is applied to information processing equipment for assisting farm work determination.  <P>COPYRIGHT: (C)2005,JPO&NCIPI
Patent JP-2006193344-A (JP)
Title: Self-leveling material
Inventor: OGAWA SADAHIKO
IPC: C04B22/14
Filed: 2005-01-11
Abstract: <P>PROBLEM TO BE SOLVED: To provide a self-leveling material which enables to effectively utilize "papermaking sludge ash" or "plaster" which has been only a nuisance, and develops a self-leveling function also.  <P>SOLUTION: This self-leveling material is obtained by using papermaking sludge ash, blast furnace slag fine particles, anhydrous or hemihydrate gypsum and a water reducing agent as raw materials.  <P>COPYRIGHT: (C)2006,JPO&NCIPI
Patent JP-2006193816-A (JP)
Title: Steel sheet superior in workability and producibility, and manufacturing method therefor
Inventor: FURUYA HITOSHI
IPC: B21B1/26
Filed: 2005-01-17
Abstract: <P>PROBLEM TO BE SOLVED: To provide a steel sheet superior in workability and producibility, and to provide a manufacturing method therefor.  <P>SOLUTION: The base metal of the steel sheet includes each predetermined amount of C, Si, Mn, P, S, Cr, Mo, Nb, Al and N, and further Ti, V, Cu, Ni, B, REM, Ca, Zr and Mg which are added as needed, so as to have X1 expressed by X1=(Si/5+Mo+Cr/2)/(C+Mn/6) controlled to 0.5 or more and X2 expressed by X2=0.006t+0.8-Mn controlled to 0 or more. The manufacturing method for the steel sheet indispensably includes a water cooling step. Thus manufactured steel sheet has a region having a Vickers' hardness of 170 HV or lower so as to occupy 30% to 90% in a structure composing the steel, and a region having a Vickers' hardness of 350 HV or higher so as to occupy 10% to 70%; and thereby acquires superior workability.  <P>COPYRIGHT: (C)2006,JPO&NCIPI
Patent JP-2006197989-A (JP)
Title: Kitchen unit
Inventor: OKUI ETSUKO
IPC: A47B77/02
Filed: 2005-01-18
Abstract: <P>PROBLEM TO BE SOLVED: To provide a kitchen unit allowing space saving without reducing the width or depth of a sink and cooking stove, and allowing its free arrangement compared with a conventional kitchen unit.  <P>SOLUTION: The kitchen unit includes the cooking stove and the sink, the sink is supported by a post at one end so as to define a lower space for storing the cooking stove, the cooking stove is vertically supported so as to be turned around the post at one end under the sink between a first position where the cooking stove is stored in the space under the sink and a second position extended from the sink.  <P>COPYRIGHT: (C)2006,JPO&NCIPI
Patent JP-2006200927-A (JP)
Title: Tft array inspection device and data extraction method
Inventor: OGOSHI AKIRA
IPC: G02F1/13
Filed: 2005-01-18
Abstract: <P>PROBLEM TO BE SOLVED: To prevent erroneous detection of incorrectly detecting a normal pixel as a defective pixel, by correctly extracting data on the defective pixel.  <P>SOLUTION: This TFT array inspection device 1 extracts the defective data from two-dimensional measuring data, and comprises a searching means 6 for selecting the measuring data assigned to the pixel from the two-dimensional measuring data; a storage means 7 for storing a retrieving result; and an assigning means 8 for assigning the measuring data to an unassigned pixel by referring to the retrieving result. The assigning means 8 extracts the defective data on the respective pixels on the basis of assignment data, by constituting the assignment data by reconstructing data to data of a pixel unit of an inspection object panel from the two-dimensional measuring data.  <P>COPYRIGHT: (C)2006,JPO&NCIPI
Patent JP-2006203028-A (JP)
Title: Semiconductor device and manufacturing method thereof
Inventor: KURI SHINJI
IPC: H01L29/78
Filed: 2005-01-21
Abstract: <P>PROBLEM TO BE SOLVED: To provide a semiconductor device having a low continuity resistance and a high-voltage withstanding property.  <P>SOLUTION: In the semiconductor device 1, main grooves 19 having wide widths which are formed in a processing layer 13 are surrounded by a plurality of annular auxiliary grooves 20 having narrower widths than the main grooves 19. In the inside of each main groove 19, semiconductor crystals are grown to fill it with the crystals to an incomplete extent while the inside of each auxiliary groove 20 is filled with the crystals completely. Each voltage withstanding region 23 is formed in each auxiliary groove 20, and each conductive region 22 is formed in each main groove 19. Then, after forming each gate insulating film 21 on the surface of each conductive region 22, each gate electrode 14 is disposed in the region surrounded by each gate insulating film 21, and each inversion layer is formed on the side surface of each gate insulating layer 21 in its depthwise direction to connect each source region 38 and each conductive region 22 by each inversion layer. Since each insulating buried region 10 is positioned on each bottom surface of each gate electrode 14, the semiconductor device 1 has a high-voltage withstanding property.  <P>COPYRIGHT: (C)2006,JPO&NCIPI
Patent JP-2006203677-A (JP)
Title: Broadband frequency conversion circuit having distortion cancellation function
Inventor: NISHIZAWA TAKAHIKO
IPC: H04B1/18
Filed: 2005-01-21
Abstract: <P>PROBLEM TO BE SOLVED: To provide a frequency conversion circuit having a secondary distortion cancellation function capable of reliably removing secondary distortion even if performing a broadband frequency conversion.  <P>SOLUTION: High-frequency input signals F1, F2 are distributed to a mixer 13 and a secondary distortion cancellation signal generation circuit 20. The mixer 13 generates a secondary distortion component "F2-F1" when the signals F1, F2 are converted to an intermediate-frequency signal. In the secondary distortion cancellation signal generation circuit 20, the secondary distortion component "F2-F1" is generated by a distortion generation circuit 21 when the signals F1, F2 are inputted for taking out via a filter 22, and adjustment is made by a phase adjustment circuit 23 and an amplitude adjustment circuit 24 so that the signal is in opposite phase to and has the same amplitude as the secondary distortion component outputted from the mixer 13. The secondary distortion cancellation signal outputted from the secondary distortion cancellation signal generation circuit 20 and the output signal of the mixer 13 are synthesized by synthesizing equipment 15, thus canceling a secondary distortion component "F2-F1" included in the output signal of the mixer 13.  <P>COPYRIGHT: (C)2006,JPO&NCIPI
Patent JP-2006208440-A (JP)
Title: Image forming apparatus
Inventor: KAWADA KUNIHIRO
IPC: G03G15/01
Filed: 2005-01-25
Abstract: <P>PROBLEM TO BE SOLVED: To provide an image forming apparatus that is simple in configuration and low in cost.  <P>SOLUTION: A single pattern sensor 18 can detect a belt rotation detection mark TM displayed on an image non-formation part of an intermediate transfer belt 16 and registration marks RM(K), RM(C), RM(M), and RM(Y) displayed on an image formation part of the intermediate transfer belt 16. In this apparatus, after the belt rotation detection mark TM is detected by the pattern sensor 18, the registration marks RM(K), RM(C), RM(M), and RM(Y) are formed.  <P>COPYRIGHT: (C)2006,JPO&NCIPI
Patent JP-2006206489-A (JP)
Title: Anticancer agent
Inventor: FUJII MAKOTO
IPC: C07D307/48
Filed: 2005-01-27
Abstract: <P>PROBLEM TO BE SOLVED: To provide a furan derivative having an anticancer activity, and a medicine, beverage or food, containing the derivative.  <P>SOLUTION: This anticancer agent, beverage or food contains the furan derivative expressed by formula (I) [wherein, X is -CH<SB>2</SB>OH or -COR (wherein, R is a substituted or unsubstituted lower alkyl); Y is H or a monosaccharide residue; and Z is H or -CHO, and provided that when the Y is H, Z is -CHO, and when the Z is H, Y is the monosaccharide residue] as an active ingredient.  <P>COPYRIGHT: (C)2006,JPO&NCIPI
Patent JP-2006210630-A (JP)
Title: Group iii nitride semiconductor laser device
Inventor: SUGIURA KATSUMI
IPC: H01S5/343
Filed: 2005-01-28
Abstract: <P>PROBLEM TO BE SOLVED: To restrain impurities from diffusing into an active layer so as to provide a group III nitride semiconductor laser device which is kept stable in optical output characteristics and excellent in reliability as a result.  <P>SOLUTION: The group III nitride semiconductor laser device has a configuration in which a p-type impurity diffusion restricting layer 7 that has an electrical field which extends from a p-type clad layer 10 toward the active layer 5 in an equilibrium state is provided between the active layer 5 and the p-type clad layer 10, so that the electrical field functions as a means for pulling back the p-type impurities which are turned negative ions toward the p-type clad layer 10. The p-type impurities can be restrained from diffusing, the diffusion of the p-type impurities can be controlled, and as a result the group III nitride semiconductor laser device can be provided which is stable in optical output characteristics and excellent in reliability.  <P>COPYRIGHT: (C)2006,JPO&NCIPI
Patent JP-2006210745-A (JP)
Title: Semiconductor device and its manufacturig method
Inventor: TANAKA TADAYOSHI
IPC: H01L21/3205
Filed: 2005-01-31
Abstract: <P>PROBLEM TO BE SOLVED: To provide a method for fast operating with low noise by connecting between a plurality of different semiconductor chips in three dimensional manner in a shortest wiring length with the use of a through-electrode.  <P>SOLUTION: The method for manufacturing the three dimensional chip lamination structure with an interposer chip 11 for connecting between an upper chip and a lower chip arranged at the midpoint of different upper and lower semiconductor chips 1a to 1f comprises the steps of forming a hole reaching the surface layer electrode by dry etching in the position of a rear surface corresponding to the device side (the surface layer side) external electrode part, providing a metallic plating film on the side wall of the hole and the rear side periphery, deformation-inletting by pressure contact a metallic bump for the another semiconductor chips laminated on the upper stage side in the through-hole with the metallic plating film provided, and electrically connecting the metallic bump in the through hole formed in the semiconductor chip by geometrically caulking the metallic bump.  <P>COPYRIGHT: (C)2006,JPO&NCIPI
Patent JP-2006210237-A (JP)
Title: Discharge lamp
Inventor: MORIMOTO SHUNICHI
IPC: H01J61/52
Filed: 2005-01-31
Abstract: <P>PROBLEM TO BE SOLVED: To provide a short-arc type discharge lamp capable of restraining temperature increase of a sealing part of a stepped joint glass in a sealing tube, of which the sealing part is not broken.  <P>SOLUTION: On the short-arc type discharge lamp, a sealing tube 12 continued to a light-emitting tube 11 and a leading rod 23 supporting electrodes 21, 22 arranged inside the light-emitting tube 11 are sealed by the stepped joint glass 13 in the sealing tube 12. A sealing tube cooling member 5 is arranged on outer face of the sealing tube 12, and a leading rod cooling member 4 is connected to the leading rod 23 protruded outward from the stepped joint glass 13 in the sealing tube 12 on which the sealing tube cooling member 5 is arranged.  <P>COPYRIGHT: (C)2006,JPO&NCIPI
Patent JP-2006209903-A (JP)
Title: Information recording medium
Inventor: IMAI SUSUMU
IPC: G11B5/64
Filed: 2005-01-31
Abstract: <P>PROBLEM TO BE SOLVED: To provide an information recording medium with ultra high recording density having better thermal fluctuation resistance in the information recording medium in which a near-field beam is applied to a hybrid recording method.  <P>SOLUTION: The medium is the information recording medium which performs information recording by forming a recording magnetic domain by irradiating the medium with a near-field beam and impressing an external magnetic field, and performs information reproduction by detecting the leaking magnetic field from the recorded magnetic domain. The information recording medium is formed with material containing a 3d ferromagnetic transition metal element and a nonmagnetic element. The information recording medium comprises a first recording layer, in which magnetic particle containing the 3d ferromagnetic transition metal element and a segregation phase containing the non magnetic element exist, and a second recording layer formed by laminating a non magnetic layer and a magnetic layer alternately, and the first recording layer and the second recording layer are arranged contacting each other.  <P>COPYRIGHT: (C)2006,JPO&NCIPI
Patent JP-2006213949-A (JP)
Title: Method for producing thin sheet magnet having perpendicular magnetic anisotropy
Inventor: YAMASHITA FUMITOSHI
IPC: B22F3/00
Filed: 2005-02-02
Abstract: <P>PROBLEM TO BE SOLVED: To provide a method for producing a thin sheet magnet having perpendicular magnetic anisotropy which is given flexibility by mechanical drawing of inter-crosslink macromolecules, and of which the direction of the anisotropy can be converted from the perpendicular direction to the radial direction utilizing the flexibility, and which is applicable to compact motors and actuators, and more concretely, to provide a method for producing a thin sheet magnet having perpendicular magnetic anisotropy which has a thickness of 300 to 1,500 μm and a (BH)<SB>max</SB>of >140 kJ/m<SP>3</SP>while maintaining mechanical properties represented by tensile strength.  <P>SOLUTION: As requirements for the production of the thin sheet magnet having perpendicular magnetic anisotropy which has a density of ≥5.7 Mg/m<SP>3</SP>, a maximum energy product (BH)<SB>max</SB>of ≥140 kJ/m<SP>3</SP>, and a thickness of 300 to 1,500 μm, an additive composed of a polar group and an alkyl group and for increasing the apparent viscosity of polyamide observed when being melted, and Sm<SB>2</SB>Fe<SB>17</SB>N<SB>3</SB>fine powder with an average particle diameter of 1 to 5 μm whose surface is coated with epoxy oligomer are dispersed into the polyamide together with Nd<SB>2</SB>Fe<SB>14</SB>B particles with an average particle diameter of 50 to 200 μm, and when being subjected to compression molding in a magnetic field, lubrication action by elution of the additive to the outside the system is utilized.  <P>COPYRIGHT: (C)2006,JPO&NCIPI
Patent JP-2006214146-A (JP)
Title: Switch
Inventor: ISAYAMA TADASHI
IPC: B61L5/06
Filed: 2005-02-03
Abstract: <P>PROBLEM TO BE SOLVED: To provide a switch capable of being detected whether or not a basic rail and a tongue rail are appropriately adhered to each other without using a locking lever or without depending on the locking lever.  <P>SOLUTION: The switch 1 comprises operating levers 11 and 13, a driving means 15 providing driving force to only the operating lever on an opening side of the tongue rail in a near section of at least a normal position or an opposite position, a coil spring (an elastic means) 17 transferring the driving force of the operating lever on the opening side of the tongue rail to the operating lever on the adherence side of the tongue rail and a locking means 21 locking when the operating lever on the adherence side of the tongue rail reaches a terminal position corresponding to the normal position or the opposite position. Engagement secure surfaces 75 and 79 having relatively a small amount of notch and engagement avoidable surfaces 77 and 81 having a large amount of notch are provided to cam surfaces 71 and 73 engaged with a switch roller 39 in a pair of operating levers in a predetermined relative position.  <P>COPYRIGHT: (C)2006,JPO&NCIPI
Patent JP-2006217725-A (JP)
Title: Flywheel magneto
Inventor: KUBOKAWA TAKEO
IPC: H02K1/22
Filed: 2005-02-03
Abstract: <P>PROBLEM TO BE SOLVED: To provide a flywheel magneto which raises generation performance by thinning the stack of steel plates constituting a rotor core to the same thickness as a stator core.  <P>SOLUTION: Each rotor core 7, which constitutes a magnetic field assembly 4 to be cast in a flywheel constituting a rotor together with a permanent magnet 6, is composed of a core main body 701 which consists of many sheets of steel plates being stacked in the axial direction of the flywheel into the lamination thickness T smaller than the width dimension of the magnetic pole face of the permanent magnet 6 measured in the axial direction of the flywheel, and a side plate 702 which has integrally the main part 702a of the side plate being overlayed on the steel plate at the outermost end in the stacking direction of the core main body 701 consisting of ferromagnetic material and a bend 702b being bent at a right angle along the magnetic pole face of the permanent magnet 6 from the end on the permanent magnet 6 side of the main part 702a of the side plate and with its tip terminated in a position apart from the core main body 701, thereby increasing the contact area between the rotor core 7 and the permanent magnet 6.  <P>COPYRIGHT: (C)2006,JPO&NCIPI