baber/WOPTO huggingface dataset:
Patent JP-2004520222-A (JP)
IPC: B60G3/20
Filed: 2002-01-21
Abstract: In a suspension system that connects a wheel support to a vehicle body, the wheel support is designed to carry a wheel of radius "r", the wheel is intended to rest on the ground via a contact area, the system includes an arrangement that confers upon the wheel support, relative to the body, a degree of freedom of the camber and a degree of freedom of the deflection of the suspension that are independent of one another. The system is configured such that the camber movement of the wheel support relative to the body has, around a mean position, an instantaneous center of rotation (CIR r/c) located within a range from 2.5 r above ground to r below ground.
Patent JP-2004518078-A (JP)
Title: ピストンポンプ
IPC: F04B1/04
Filed: 2002-02-07
Abstract: 本発明は、スリップ制御装置を備えた液圧式車両ブレーキ装置のためのピストンポンプ（１０）に関する。本発明では、シールリングとしてもガイドリングとしても用いられる例えばＰＴＦＥ製のピストンリング（２４）を備えた、ピストンポンプ（１０）を形成することが提案される。本発明によって該ピストンポンプ（１０）の組み付けの手間と製造コストとが軽減される。確実なシールを得るために本発明では、前記ピストンリング（２４）の、ポンプ室（１８）に面した側に内側円錐を形成することが提案されるので、前記ピストンリング（２４）は吐出行程中にポンプ室（１８）からの圧力によって負荷されて、かつポンプ孔（１２）に密に接触するように押圧される。
Patent JP-2004520400-A (JP)
Title: ＥＰ４受容体に対する親和性を有するベンゾ［ｆ］イソインドール誘導体
IPC: A61P19/02
Filed: 2002-02-07
Abstract: 式(I)： 【化１】     ［式中、 R 1 およびR 3 は、同じであるかまたは異なっており、=O、水素、C 1-6 アルキル、C 1-6 ジアルキル、=CHC 1 -C 5 アルキル、=S、または5員もしくは6員のアリールを表し； R 4 〜R 9 は、同じであるかまたは異なっており、水素、C 1-6 アルコキシ、OCF 3 、OCH 2 CF 3 、O-シクロプロピル、OCH 2 -シクロプロピル、C 1 -C 6 アルキル、S-アルキル、NR 2   10 （R 10 は水素またはC 1-6 アルキルである）、ハロゲン、NO 2 、OH、CH 2 OC 1 -C 6 アルキル、CH 2 OH、またはCF 3 を表し； Q 1 は、水素、C 1-6 アルキル、C 1-6 ジアルキル、C 1-6 アルコキシ、NHAc、NR 2   10 （R 10 は水素またはC 1-6 アルキルである）、ジフルオロ、フルオロ、=O、またはOHであり； Q 2 、Q 3 、Q 4 およびQ 5 は、同じであるかまたは異なっており、水素、C 1-6 アルコキシ、OCF 3 、OCH 2 CF 3 、O-シクロプロピル、OCH 2 -シクロプロピル、C 1 -C 6 アルキル、S-アルキル、NR 2   10 （R 10 は水素またはC 1-6 アルキルである）、ハロゲン、NO 2 、OH、CH 2 OC 1 -C 6 アルキル、CH 2 OH、または5員もしくは6員のアリールを表し； ただし、化合物[4-(1-オキソ-1,3-ジヒドロ-2H-ベンゾ[f]イソインドール-2-イル)フェニル]-2-プロピオン酸、ナトリウム塩および[4-(4,9-ジエトキシ-1-オキソ-1,3-ジヒドロ-2H-ベンゾ[f]イソインドール-2-イル)フェニル]酢酸を除く］ で表される化合物およびその製薬上許容される誘導体。
Patent JP-2004533035-A (JP)
Title: クラス・ネットワーク経路指定
IPC: G06F12/08
Filed: 2002-02-25
Abstract: 【課題】ネットワーク内でクラス経路指定を実施し、１行または１列のプロセッサなど、ある範囲のプロセッサに計算プロセッサがメッセージをブロードキャストできるようにする、クラス・ネットワーク経路指定を提供すること。 【解決手段】クラス・ネットワーク経路指定を、ノードに複数の並列計算プロセッサを含むコンピュータ・ネットワークなどのネットワークで実施する。クラス・ネットワーク経路指定を用いると、計算プロセッサが、１行または１列のプロセッサなど、コンピュータ・ネットワーク内の、ある範囲（１つまたは複数）の他の計算プロセッサにメッセージをブロードキャストできるようになる。通常、このタイプの動作は、別々のメッセージを各プロセッサに送ることを必要とする。本発明に従うクラス・ネットワーク経路指定があると、単一のメッセージで十分であり、これによって、一般に、ブロードキャストを行うための、ネットワーク内のメッセージの総数および待ち時間が減る。クラス・ネットワーク経路指定は、ハードウェア・クラス機能（マルチキャスト）能力を有する分散メモリ並列スーパーコンピュータでの密行列反転アルゴリズムにも適用される。これは、密行列反転の通信パターンを、ハードウェア・クラス機能によってサービスできるという事実を活用することによって達成され、これによって、より高速の実行時間がもたらされる。 【選択図】図１
Patent JP-2004524032-A (JP)
IPC: C12Q1/6816
Filed: 2002-03-09
Abstract: This invention pertains to the field of combination oligomers, including the block synthesis of combination oligomers in the absence of a template, as well as related methods, kits, libraries and other compositions; wherein the block oligomer comprises PNA or PNA chimera or PNA blocks.
Patent JP-2004524697-A (JP)
IPC: B24D13/12
Filed: 2001-06-19
Abstract: An abrasive article that includes a fixed abrasive element having a plurality of abrasive particles, a resilient element, and a plurality of rigid segments disposed between the fixed abrasive element and the resilient element.
Patent JP-2004532546-A (JP)
Title: フェーズドアレイアンテナ
IPC: H01Q13/10
Filed: 2002-02-06
Abstract: 多重送受信機能用のマルチアンテナビームを生成する再構成可能な広帯域フェーズドアレイアンテナ。このアンテナアレイは、スロット内に配設されたＲＦ  ＭＥＭＳスイッチを備えた複数の長い非共振ＴＥＭスロットアンテナ開口を備える。このＲＦ  ＭＥＭＳスイッチは、スロット全体にわたって給電線路内に直接配置され、それによって、スロットへのＲＦエネルギーの結合を直接制御する。各スロット内で複数のＲＦ  ＭＥＭＳスイッチを使用し、それによって、各スロットが複数の送受信機能および／または多重周波数をサポートすることができる。このスロットアンテナがもたらす周波数有効範囲は、１０：１の周波数範囲よりも大きい。
Patent JP-2003240684-A (JP)
Title: Sampler for melt, in particular slag lying on molten metal
Inventor: KNEVELS JOHAN
IPC: G01N1/04
Filed: 2003-01-10
Abstract: <P>PROBLEM TO BE SOLVED: To improve an existing sampler to enable more stable sampling.  <P>SOLUTION: A sample chamber has an intermediate plate inside while being spaced apart from a chamber wall, and the intermediate plate has at least one through opening part.  <P>COPYRIGHT: (C)2003,JPO
Patent JP-2004215760-A (JP)
Title: Vacuum cleaner
Inventor: MORI HIROSHI
IPC: A47L9/10
Filed: 2003-01-10
Abstract: <P>PROBLEM TO BE SOLVED: To provide a down-sized vacuum cleaner whose dust collecting performance is improved by preventing a drop in suction force.  <P>SOLUTION: A centrifuging part 7 having an inflow port 10 into which suction air containing dust flows and a roughly circular space is provided, and a turning part 11 for turning the suction air containing the dust along the inner wall of the centrifuging part 7 is disposed inside the centrifuging part 7. By forming the turning passage 11a for the suction air between the inner wall of the centrifuging part 7 having the roughly circular space and the turning part 11, sure and high-speed turning is produced. As a result, the performance of separating the dust and the suction air is improved and thus the dust collecting performance is improved.  <P>COPYRIGHT: (C)2004,JPO&NCIPI
Patent JP-2004221191-A (JP)
Title: Manufacturing method for semiconductor device
Inventor: NAGASE KUNIHIKO
IPC: G03F7/40
Filed: 2003-01-10
Abstract: <P>PROBLEM TO BE SOLVED: To provide a manufacturing method for a semiconductor device by which a residue generated when a wiring groove is formed in a dual damascene method can be reduced.  <P>SOLUTION: The bottom of a groove 12a formed at when a machining is stopped is irradiated with the plasma of a gas containing fluorine by stopping the machining once without forming the wiring groove 12 to an interlayer insulating film 3 by one-time machining. Accordingly, the residue 15 composed of an Si compound or the like existing on the bottom of the groove 12a at the point of time is removed. The residue is removed in this manner, and the wiring groove 12 is formed by machining. The residue can be generated by further machining in this case, but an SiC film 2 is formed generally between the film 3 and a Cu wiring 1 positioned at the lower section of the film 3 by the dual damascene method, and the residue is removed when the film 2 is machined. Consequently, the lowering of a yield, the increase of the resistivity of the wiring, the deterioration of a reliability or the like can be avoided.  <P>COPYRIGHT: (C)2004,JPO&NCIPI
Patent JP-2004220408-A (JP)
Title: Order-notifying system of building member
Inventor: SOTODANI TAKAO
IPC: G06Q30/06
Filed: 2003-01-16
Abstract: <P>PROBLEM TO BE SOLVED: To solve problems wherein overstocks, long-term stocks or dead stocks of construction members occur frequently, since many changes occur in construction plans, even though a supplier of construction members forecasts demands by collecting information about housing construction plan of construction companies and performs prospective production of the construction members, according to the forecast.  <P>SOLUTION: The construction company of this system discloses to the public through network 1, such as the Internet, using a server 10 the procurement schedule of construction members of buildings, such as, specifications information 22, production plan information 23 and manufacturing process progress information 24, at an early stage and in an undecided status. Since these are important information for sales, the construction company allows a terminal device 30 of a supplier of construction members, to browse limited procurement information, that is, the information about the construction members, supplied by the supplier and the procurement information, in an area where the supplier supplies the construction members (supply area).  <P>COPYRIGHT: (C)2004,JPO&NCIPI
Patent JP-2004219309-A (JP)
Title: Method and kit for measuring saliva sugar
Inventor: SHINOZUKA NAOKI
IPC: G01N21/78
Filed: 2003-01-16
Abstract: <P>PROBLEM TO BE SOLVED: To provide a saliva sampling collection method required for measuring saliva, and to provide a saliva sugar measurement method by sensitive measurement, and a measurement kit by paying attention to the saliva that can be simply, quickly sampled for developing the measurement of non-invasive blood sugar.  <P>SOLUTION: The saliva sugar measurement kit is used for the high-sensitivity measurement capable of quantitatively measuring low-concentration sugar contained in the saliva and includes a saliva sampling collection tool. The saliva sampling collection tool can simply and quickly sample and collect mouthwash for sterilizing and rendering antimicrobial bacteria in mouth for analyzing sugar in the saliva, an excessive moisture absorber for removing the mouthwash, excessive saliva, and moisture, a stimulant for accelerating saliva secretion, and sublingual gland and submaxillary gland saliva. Additionally, the measurement method enables saliva sugar measurement having high correlativity with blood sugar by using the high-sensitivity measurement which applies colorimetry to formazane generated by oxidation-reduction reaction of an electron mediator and tetrazolium salt with respect to a reducing coenzyme generated by enzyme reaction of glucose dehydrogenase an oxidizing coenzyme.  <P>COPYRIGHT: (C)2004,JPO&NCIPI
Patent JP-2004217125-A (JP)
Title: Floor panel structure for vehicle body
Inventor: KAMURA TAKANOBU
IPC: B62D25/20
Filed: 2003-01-16
Abstract: <P>PROBLEM TO BE SOLVED: To provide a floor panel structure for a vehicle body reducing noise in a vehicle room.  <P>SOLUTION: The floor panel structure for the vehicle body has an outer peripheral end connected to a plurality of frame members 34 (14, 21, 22, 26 and 28) arranged in the longitudinal and cross directions of the vehicle body and connected to an engine 11 or suspensions 17, 27. Each floor panels S1, S2 and S3 has a joint portion joined at, at least, part of its outer peripheral end to the frame member, a low rigidity portion 33 formed along the whole length of the joint portion and a panel 40 formed inward from the low rigidity portion, covering the most area of the floor panel and formed as a high rigidity portion. The low rigidity portion and the high rigidity portion are different in rigidity to form a vibration shut-off portion along the whole length of the joint portion. The low rigidity portion is formed with a plurality of continuously formed through-holes 84, and it has a vibration damping material 42 covering the through-holes.  <P>COPYRIGHT: (C)2004,JPO&NCIPI
Patent JP-2004225167-A (JP)
Title: Rectangular spin pack for spinning conjugated fiber
Inventor: KOIDE SHIGEMI
IPC: D01D5/098
Filed: 2003-01-20
Abstract: <P>PROBLEM TO BE SOLVED: To provide a rectangular spin pack which is used for spinning conjugated fibers and can continuously produce a non-woven fabric having excellent uniformity without causing a trouble, even when each fiber has a fine fineness of ≤1 dtex.  <P>SOLUTION: Projections 2 each having a pair of polymer-introducing holes for two polymers are disposed at a plurality of places on the lateral sides of a rectangular die block 1, and projections 3 having receivers for press bars are disposed on the opposite side corresponding to the lateral side. Polymer passages for laterally uniformly distributing the polymers introduced into the spin pack in the machine width direction of the rectangular spin pack several times are formed, and the polymer passages are formed so that the polymer on the small constitution rate side surrounds the polymer on the large constitution rate side in the longitudinal direction orthogonal to the machine width direction and the polymers are longitudinally uniformly distributed.  <P>COPYRIGHT: (C)2004,JPO&NCIPI
Patent JP-2004228135-A (JP)
Title: Embedding method of metal into pore
Inventor: YUYA NAOKI
IPC: H01L21/3205
Filed: 2003-01-20
Abstract: <P>PROBLEM TO BE SOLVED: To provide an embedding method of metal into a pore formed in a substrate with a simple installation and the reduced number of processes.  <P>SOLUTION: A circular pore 2 is formed to the middle of the substrate 1 with etching, and then a solder bump 3 is disposed on an upper portion of the substrate 1 using a bump forming device. At this time, a gap 4 is provided between the solder bump 3 and the pore 2 while shifting the center of the solder bump 3 from the central axis of the pore 2 to prevent the solder bump 3 from sealing the pore 2. Then, when a vacuum chamber is evacuated and the substrate 1 is heated to a temperature beyond the melting point of the solder, the solder bump 3 is melted to fill the gap 4. Thereafter, when inert gas such as nitrogen inactive to the solder is introduced into the vacuum chamber and is pressurized, the melted solder bump 3 is sucked into the pore 2.  <P>COPYRIGHT: (C)2004,JPO&NCIPI
Patent JP-2004224362-A (JP)
Title: Portable tissue
Inventor: ITO SAEKO
IPC: B65D83/08
Filed: 2003-01-20
Abstract: <P>PROBLEM TO BE SOLVED: To provide a portable tissue, which prevents dust or dirt from coming in through an outlet formed by a perforation and facilitates the unsealing of the perforation.  <P>SOLUTION: According to the portable tissue 1, respective couples of tissues 2, 2 are folded and layered vertically to form a tissue packet 2A, which is held in a film packaging bag 3 with the perforation 3a formed latitudinally on the surface side. The film packaging bag 3 has a folded part 5, which has a Z-shaped section and is continuous longitudinally on the surface side sheet on which the perforation 3a is formed. The folded part 5 has a free strip, which covers the perforation 3a.  <P>COPYRIGHT: (C)2004,JPO&NCIPI
Patent JP-2004226577-A (JP)
Title: Laser light source system for electrophotographic apparatus and control method for the system
Inventor: ISHIZAWA KATSUMI
IPC: G03G21/00
Filed: 2003-01-22
Abstract: <P>PROBLEM TO BE SOLVED: To provide a laser light source system for an electrophotographic apparatus, which sets the output level of a laser beam to an appropriate value in accordance with the processing speed of the electrophotographic apparatus and obtains satisfactory print quality.  <P>SOLUTION: The laser light source system is provided with a control means which varies the output level of a laser beam based upon a processing speed signal supplied from an information processing device situated outside.  <P>COPYRIGHT: (C)2004,JPO&NCIPI
Patent JP-2004262466-A (JP)
Title: Easily unsealable container lid with resealability and its manufacturing method
Inventor: SHIBASAKA MAMORU
IPC: B65D39/16
Filed: 2003-01-24
Abstract: <P>PROBLEM TO BE SOLVED: To provide an easily unsealable container lid with resealability which can be temporarily re-sealed repetitively wherein an opening once unsealed is temporarily sealed again, and a manufacturing method for the lid.  <P>SOLUTION: The easily unsealable container lid with resealability consists of a lid member including a preformed opening and an unsealing tab for covering the opening on the external surface of the lid member and applied to hermetically stick to the periphery of the opening. The unsealing tab consists of a flexible tab member and a plug member formed to be adhesively integrated with the tab member and to be capable of fitting into the opening of the lid member. The flexible tab member is peelably and tightly fixed to the vicinity of the opening of the lid member.  <P>COPYRIGHT: (C)2004,JPO&NCIPI
Patent JP-2004157963-A (JP)
Title: Pattern identifying device
Inventor: NARA TAKEHIKO
IPC: G07D5/02
Filed: 2003-01-29
Abstract: <P>PROBLEM TO BE SOLVED: To enhance identification performance in a pattern identifying device for identifying a pattern of an identifying object such as a coin, based on an image of the identifying object acquired by an image pick-up means.  <P>SOLUTION: The presence of dew condensation in a passage 13 is detected by providing a dew condensation detecting means 82 for detecting the presence of the dew condensation in the passage 13 in the vicinity of the image pick-up means 16. Malfunction by an abnormal image data is prevented, a dew condensation preventing means is operated, and the generation of dew drops is informed, by omitting control processing of the imaging means 16 not to be executed. The pattern is accurately discriminated thereby.  <P>COPYRIGHT: (C)2004,JPO
Patent JP-2004235814-A (JP)
Title: Method for setting retrieval area of portable terminal and method of using the same
Inventor: IKEDA KATSUNORI
IPC: H04M1/00
Filed: 2003-01-29
Abstract: <P>PROBLEM TO BE SOLVED: To provide a method for setting the retrieval area of a portable terminal allowing the easy setting and a method for using the same without requiring a large-scale system including a host server.  <P>SOLUTION: The setting method appropriately selects a retrieval area configuration for a portable terminal 100 out of the retrieval area configurations stored on a storage section 11 so that the selected retrieval area configuration for the portable terminal 100 may conform to the usage. A control section 30 sets a position and a range for actually using the configuration by using positional data obtained by a GPS (Global Positioning Satellite) receiver 14. Thus, the setting is exactly easily executed. Upon setting the retrieval area-stored portable terminal to an operation state, the GPS positional data associated with the present location of the portable terminal are read, and the stored retrieval area is then read to determine whether the read GPS positional data are located in the movable region of the read retrieval area. When the read GPS position data are not located in the movable region, warning is issued.  <P>COPYRIGHT: (C)2004,JPO&NCIPI
Patent JP-2004234237-A (JP)
Title: Working system
Inventor: NAITO MASAO
IPC: G05B23/02
Filed: 2003-01-29
Abstract: <P>PROBLEM TO BE SOLVED: To provide a working system in which an operator's load is reduced and false setting is prevented.  <P>SOLUTION: A working apparatus (1) for manufacturing two or more worked products from a bonding wire (6) to which a product sort is attached as a lot number (13) reads out a production condition number code (16) from a production instruction manual (12) by a reader (4), transmits all production condition numbers (14) to a condition management server (3) and generates control data (15) for operation from manufacturing condition data (17) transmitted from the condition management server (3) and a set value (19) which is inherent in the working apparatus (1) is set in the working apparatus (1).  <P>COPYRIGHT: (C)2004,JPO&NCIPI
Patent JP-2004235461-A (JP)
Title: Exposure system
Inventor: SAKAMOTO HIDEAKI
IPC: H01L21/027
Filed: 2003-01-30
Abstract: <P>PROBLEM TO BE SOLVED: To enable an exposure unit and a treatment unit to be positioned easily without increasing their sizes and costs while keeping static stability.  <P>SOLUTION: This exposure system includes the exposure unit EU which exposes a pattern formed in a mask to a substrate; the treatment unit IU which is arranged away from the exposure unit EU in a first direction; and also a connector 63 which keeps under restraint the exposure unit EU and the treatment unit IU at least in the first direction, and connects these units with degree of freedom at least in one direction different from the first direction.  <P>COPYRIGHT: (C)2004,JPO&NCIPI
Patent JP-2003310353-A (JP)
Title: Manufacturing method for brush
Inventor: SATO HISAO
IPC: A46D3/04
Filed: 2003-01-31
Abstract: <P>PROBLEM TO BE SOLVED: To provide a manufacturing method for a brush which manufactures a brush with high quality in which fall-out resistant strength of a bristle bundle is high, resin leakage generated when filling the resin, and the distortion and disorder of the bristle bundle are restrained, with few deformation and warp of an implantation base part.  <P>SOLUTION: The manufacturing method for the brush comprises a bristle bundle insertion process inserting the bristle bundle 3 into implantation holes 24 formed on an implantation base part 22 having a plurality of implantation holes 24, a heating process forming the end parts 31 of the bristle bundle 3 protruding from the implantation holes 24 into molten lumps 32 by heating, and a covering process covering the molten lumps 32. The molten lumps 32 are formed by heating the peripheral part of the opening 240 of the implantation holes 24 and the end parts 31 of the bristle bundle 3 by using a non-contact heat source, and the molten lumps 32 are bonded to the peripheral part of the opening 240 of the implantation holes 24 by fusion.  <P>COPYRIGHT: (C)2004,JPO
Patent JP-2004232786-A (JP)
Title: Piston seal and disk brake
Inventor: NOGUCHI TORU
IPC: F16D65/22
Filed: 2003-01-31
Abstract: <P>PROBLEM TO BE SOLVED: To provide a piston seal for a disc brake, of high toughness capable of keeping the workability and followability of the piston by keeping the elasticity even when a caliper body of the disc brake becomes high-temperature.  <P>SOLUTION: This piston seal 8 is used in the disc brake 20 for the vehicle. The piston seal 8 is composed of rubber including at least one of carbon fiber and fullerene.  <P>COPYRIGHT: (C)2004,JPO&NCIPI
Patent JP-2004232412-A (JP)
Title: Runner mounting structure of hanging door
Inventor: KAWAKADO NAOKI
IPC: E05D15/06
Filed: 2003-01-31
Abstract: <P>PROBLEM TO BE SOLVED: To provide a runner mounting structure of hanging door to which the top end of the hanging door can be easily installed to a hanging member attached to a runner.  <P>SOLUTION: A runner 3 set on a running rail 2 arranged on the top side of the hanging door 1 is provided in a freely travelling manner. A hanging member 4 fixed to the hanging door 1 directed downward from the runner 3 is protruded. A hooking piece 45 is protruded by hooking the hanging member 4, and the hanging door 1 is supported by hooking a portion 16 hooked to the hooking piece 45 provided near the top end of the hanging door 1, then a fixing screw 5 is inserted to an insertion hole 46a formed in the hanging member 4, and it is screwed to a tapped hole 17 formed near the top end of the hanging door 1.  <P>COPYRIGHT: (C)2004,JPO&NCIPI
Patent JP-2004240504-A (JP)
Title: Information equipment having storage device and method for controlling electric power saving of equipment thereof
Inventor: ONO KEN
IPC: G06F1/32
Filed: 2003-02-03
Abstract: <P>PROBLEM TO BE SOLVED: To provide information equipment capable of obtaining the effect of electric power saving at the same time without shortening the life of a storage device having limitation in the number of use such as an HDD.  <P>SOLUTION: This information equipment counts the number of shifts of an equipment body into an electric power saving mode every time the equipment body shifts into the electric power saving mode without shifting a storing device into an electric power saving mode and when the equipment body shifts into the electric power saving mode for a predetermined number, the storage device is also shift into the electric power saving mode at that time.  <P>COPYRIGHT: (C)2004,JPO&NCIPI
Patent JP-2004238219-A (JP)
Title: Lightweight aggregate and lightweight concrete
Inventor: MORI SHIGERU
IPC: C04B16/08
Filed: 2003-02-03
Abstract: <P>PROBLEM TO BE SOLVED: To provide a lightweight aggregate which is lightweight in comparison with a normal aggregate and has high strength in comparison with a foamed polystyrene volume reduction aggregate, and to provide lightweight concrete.  <P>SOLUTION: The lightweight aggregate 3 is obtained by crushing a solid material 3 formed by the solidification of a thermally melted thermoplastic resin. The melted and solidified solid material 2 has improved strength in comparison with a solid material obtained by reducing its volume with far infrared rays. The lightweight aggregate 3 comprising the crushed bodies of the solid material 2 is almost free from pores and has a lower water absorption rate in comparison with the foamed polystyrene volume reduction aggregate and can secure strength because its structure becomes denser.  <P>COPYRIGHT: (C)2004,JPO&NCIPI