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1. 发明专利

JPH11181913A CONSTRUCTION OF ELECTRIC WAVE ABSORBING WALL AND BUILDING METHOD THEREFOR 失效
公开(公告)号：JPH11181913A
公开(公告)日：1999-07-06
申请号：JP35551497
申请日：1997-12-24
申请人： KAJIMA CORP , KUREHA CHEMICAL IND CO LTD
发明人： NAKAGAWA HIROAKI , KOBAYASHI MIKIO , KASASHIMA YOSHINORI , KOSUGI TAKATOMO , SATO TAKURO , OTANI AKIRA
IPC分类号： E04B1/92 , E04B2/56
摘要： PROBLEM TO BE SOLVED: To prevent concrete water content from affecting a resistance film by arranging the resistance film on the back of surface finishing material, providing a waterproof layer on the back, and burying a reinforcing body and a reflecting body on the surface side of the reinforcing body in a concrete part provided with the waterproof layer. SOLUTION: A resistance film 6 is provided on the back of a PC wall body 11 using surface finishing material 10, and a dielectric layer 2 also served for waterproofing constituted out of resin mortar is arranged on the back. Next, the dielectric layer 12 is arranged on the surface side of a concrete part 13, and structural reinforecement 15 is buried in the concrete part 13 and a reflecting body 14 is buried on the surface side. In this case, for preventing invasion of water content, the joint of the surface finishing material 10 is covered with seal material. At building the wall, hardware for fixing finishing material is fitted to the back of the surface finishing material 10 and covered with back treatment material, the resistance film 6 is laid and resin mortar is applied, and the dielectric layer 12 is formed. Thereafter the reflecting body 14 and the structural reinforcement 15 are buried, and the concrete part 13 is placed. Hereby, electric wave can be surely prevented from being reflected.

2. 发明专利

JP2001011974A STRUCTURE OF RADIO WAVE ABSORPTION WALL, AND ITS BUILDING METHOD 失效
公开(公告)号：JP2001011974A
公开(公告)日：2001-01-16
申请号：JP18147699
申请日：1999-06-28
申请人： KAJIMA CORP , FRC KK , KUREHA CHEMICAL IND CO LTD
发明人： NAKAGAWA HIROAKI , KOSUGI TAKATOMO , KOBAYASHI MIKIO , TOMOE SHIRO , OTANI AKIRA , NAGAI AISAKU , KABATA SEIICHIRO
IPC分类号： E04B1/92
摘要： PROBLEM TO BE SOLVED: To provide a TV radio wave absorption wall in which the water content in a concrete is completely prevented from entering a resistance film in place of a dielectric layer which is also used for a waterproof layer such as a resin mortar, the efficiency is excellent for any type of surface finished material, the resistance film can be embedded within a wall body with excellent accuracy, and a surface finished material is never peeled. SOLUTION: A resistance bar group 1G of a large number of highly rigid and waterproof resistance bars in which a strip-like resistance film 2 is embedded or inserted inside a plastic or a fiber-reinforced plastic 1a extremely small in permittivity, are continuously arranged in the horizontal direction with specified intervals so that its surface resistance is 10-550 Ω, reflection reinforcements 5 and structural reinforcements 6 are arranged through a spacer 8, and a concrete is placed therein.

3. 发明专利

JP2000299589A RADIO WAVE ABSORBING WALL 失效
公开(公告)号：JP2000299589A
公开(公告)日：2000-10-24
申请号：JP10903599
申请日：1999-04-16
申请人： KAJIMA CORP , KUREHA CHEMICAL IND CO LTD , FRC KK
发明人： KOBAYASHI MIKIO , NAKAGAWA HIROAKI , KOSUGI TAKATOMO , OTANI AKIRA , TOMOE SHIRO
IPC分类号： E04B1/92 , H05K9/00
摘要： PROBLEM TO BE SOLVED: To provide a radio wave absorbing wall, having a fire-resistive board on the reverse side of a surface glass plate via an air layer with which its body is prevented from generating reflected waves by providing the fire-resistive board with radio wave absorbing function. SOLUTION: A radio wave absorbing wall has an outer wall provided with a fire-resistive board 5A on the reverse side of a surface glass plate 2 via an air layer. The fire-resistive board 5A has a resistant film 7 of carbon fibers or the like on its surface or its inside and a reflector 9 of a metallic panel or the like on its reverse side. The resistant film 7 has a surface resistor of carbon fibers or the like exhibiting a resistance of 10-550 Ω. The reflector 9 is formed of a metallic plate, foil or net.

4. 发明专利

JP2001068926A PRODUCTION OF A RADIO WAVE ABSORBING STICK AND RADIO WAVE ABSORBER 失效
公开(公告)号：JP2001068926A
公开(公告)日：2001-03-16
申请号：JP24373299
申请日：1999-08-30
申请人： ARISAWA SEISAKUSHO KK , KUREHA CHEMICAL IND CO LTD , KAJIMA CORP , FRC KK
发明人： KOBAYASHI MIKIO , NAKAGAWA HIROAKI , KOSUGI TAKATOMO , TOMOE SHIRO , OTANI AKIRA , KABATA SEIICHIRO , KOBAYASHI TATSUO , ICHIKAWA MASAKANE , YOSHIZAWA HIROSHI , TANAKA HIROSHI
IPC分类号： E04B1/92 , H01Q17/00 , H05K9/00
摘要： PROBLEM TO BE SOLVED: To efficiency mass-produce a radio wave absorber with excellent waterproofness only by simply fixing radio wave absorbing sticks to a frame body by continuously producing the radio wave absorbing stick through drawing molding. SOLUTION: A glass fiber bundle as an aligned inorganic fiber bundle 1 is continuously supplied and the glass fiber bundle is impregnated with a vinyl ester resin as a thermosetting resin 2. Besides, as a radio wave absorbing member 3, paper of width 8 mm composed of carbon fiber of a specified resistance is continuously supplied. The glass fiber bundle 1 impregnated with the resin 2 is abutted to a roll, opened and led into a metallic mold 4, and paper is led into the metallic mold 4 (heated to 100 to 150 deg.C) so as to be positioned at the center of the glass fiber bundle 1 and drawn by a suitable drawing means 8 so that a radio wave absorbing stick 5 having a rectangular cross section can be provided. The radio wave absorbing stick 5 is cut at every length of 4 m by a cutting member 9. In this case, a suitable waterproofing means is applied to an end face of the radio wave absorbing stick 5.

5. 发明专利

JP2000040894A RESISTANT FILM FOR RADIO WAVE ABSORBING WALL, MANUFACTURE THEREOF AND RADIO WAVE ABSORBING WALL USING THE RESISTANT FILM 失效
公开(公告)号：JP2000040894A
公开(公告)日：2000-02-08
申请号：JP20920098
申请日：1998-07-24
申请人： KUREHA CHEMICAL IND CO LTD , KAJIMA CORP
发明人： OTANI AKIRA , NAGAI AISAKU , SHIBUYA YUKIHIRO , KOBAYASHI MIKIO , KASASHIMA YOSHINORI , NAKAGAWA HIROAKI , KOSUGI TAKATOMO , SATO TAKURO
IPC分类号： E04B1/92 , B32B5/02 , B32B7/02 , H05K9/00
摘要： PROBLEM TO BE SOLVED: To make strength higher to handle easily and to improve wave absorbing characteristics by coating both or one side of the surface of carbon fiber paper with a resin. SOLUTION: Various kinds of methods are available to coat both or one side of the surface of carbon fiber paper with a resin. For example, when both sides of the surface of carbon fiber paper, there is a method of impregnating carbon fiber paper with a thermosetting resin to harden it. In this case, if liquid in which the thermosetting resin is diluted with solvent is used, the impregnation with the carbon fiber paper can be facilitated. If the liquid diluted with the solvent is used, it is preferable that the solvent is heated and removed before hardening the resin. By this method, a resistant film has proper strength and rigidity and is excellent in handling and working properties while it is light in weight. If the resistant film is buried in a dielectric body such as concrete or an epoxy resin in a wave absorbing body, it is not affected by the characteristic of the dielectric body and its electric characteristic is held.

6. 发明专利

JPH095260A MEASURING EQUIPMENT OF REFLECTION LOSS OF RADIO WAVE TRANSMITTING MATERIAL 失效
公开(公告)号：JPH095260A
公开(公告)日：1997-01-10
申请号：JP15017495
申请日：1995-06-16
申请人： KAJIMA CORP
发明人： KASASHIMA YOSHINORI , KOBAYASHI MIKIO , NAKAGAWA HIROAKI , KOSUGI TAKATOMO , AKIHAMA SHIGEYUKI
IPC分类号： G01N22/00 , G01R29/08
摘要： PURPOSE: To measure a reflection loss accurately by making a radio wave reflecting material absent on the rear side of a test body, and by preventing reflection of a radio wave on a floor surface by a radio wave absorbing floor. CONSTITUTION: A floor 2 of a ferrite tile being a radio wave absorbing material is laid on the rooftop 1 and transmission and reception antennas 3 and 4 are juxtaposed on one side of the floor 2 in parallel therewith. On the other side of the floor 2, a moving device 5 is so provided as to be movable to and from the two antennas in the range of a distance D, e.g. 2m. A frame-shaped holder 6 for mounting a test body is provided upright on this device 5. The test body P of a thickness about 10mm, such as a curtain wall, is mounted on the front of pillars and beams of the holder 6, while no radio wave reflecting material is placed on the rear side thereof, and a radio wave absorber 12 is fitted to the front of the device 5. The two antennas being fixed at the same height as the center of the test body P, a weak radio wave is transmitted 3 and made to hit against the test body P and it is measured 4 while the position of the test body P is varied by moving 5 it. Since there is no radio wave reflecting material on the rear side of the test body P and reflection of the radio wave on a floor surface is prevented by the floor 2 on the occasion, a reflection loss can be measured accurately.

7. 发明专利

JP2002070238A INSTALLATION STRUCTURE OF RESISTANCE BAR TO BE EMBEDDED WITHIN RADIO WAVE ABSORPTION PANEL 失效
公开(公告)号：JP2002070238A
公开(公告)日：2002-03-08
申请号：JP2000255321
申请日：2000-08-25
申请人： KAJIMA CORP , FRC KK , KOKAJI MOTOKATSU
发明人： KOSUGI TAKATOMO , NAKAGAWA HIROAKI , KOBAYASHI MIKIO , TOMOE SHIRO , TANAKA TOSHIO
IPC分类号： E04B1/92 , E04B2/00 , E04B2/94 , E04C2/08 , H05K9/00
摘要： PROBLEM TO BE SOLVED: To provide an installation structure of a resistance bar to be embedded within a radio wave absorption panel in which the resistance bar can be installed with accuracy in a short period of time at specified intervals without loosening. SOLUTION: With regard to the radio wave absorption panel which is manufactured by successively arranging a resistance bar, a reflection reinforcement, a structural reinforcement on a casting form surface plate, and providing concrete therein, the resistance bar 3 is attached to a resistance bar fixing reinforcement 1, a clamping metallic material 2 is soldered to the resistance bar fixing reinforcement 1 at regular intervals, the resistance bar 3 is inserted in the clamping metallic material 2 of the resistance fixing reinforcement 1, and is fixed by bending the clamping metallic material to clamp the resistance bar 3.

8. 发明专利

JPH03221613A JOINING METHOD FOR UNDERGROUND CONTINUOUS WALL AND AFTER-PLACING BODY 失效
公开(公告)号：JPH03221613A
公开(公告)日：1991-09-30
申请号：JP1576090
申请日：1990-01-25
申请人： KAJIMA CORP
发明人： USAMI SHIGERU , NOJIRI AKIYOSHI , HANAMURA MASAHIKO , KOSUGI TAKATOMO
IPC分类号： E02D5/20 , E02D5/18
摘要： PURPOSE:To facilitate the construction work by joining stud bolts to the main reinforcement of an underground continuous wall which is to be previously constructed, and after the ground has been excavated, by placing concrete so as to expose the head parts of the stud bolts, and thereto by weldedly fixing the reinforcement bars for an after-placing body. CONSTITUTION:On the body-side reinforcement bar of a main reinforcement 1 being arranged on the body side of an underground continuous wall W which is to be previously constructed, screw threads are formed. And a nut 3 is screwed in the threaded part, and on the side surface of the nut 3, a stud bolt 4 is welded so as to be directed toward the body side. Then, in such a condition that the stud bolt 4 has been embedded in concrete 5, an underground continuous wall W is constructed. After excavation of the ground, concrete 5 is placed so as to expose the head part 4a of the stud bolt 4, and the reinforcement bar for the after-placing body is weldedly fixed to the head part 4a by welding or the like for connecting both reinforcements.

9. 发明专利

JPH08165731A RADIOWAVE SCATTERING WALL 失效
公开(公告)号：JPH08165731A
公开(公告)日：1996-06-25
申请号：JP31031694
申请日：1994-12-14
申请人： KAJIMA CORP
发明人： KASASHIMA YOSHINORI , KOBAYASHI MIKIO , WAMI KOKI , NAKAGAWA HIROAKI , AKIHAMA SHIGEYUKI , KOSUGI TAKATOMO
IPC分类号： E04B2/94 , E04B1/62 , E04H9/14 , H05K9/00
摘要： PURPOSE: To make it possible to contribute effectively to TV radiowave reflection interference prevention by using a curtain wall of synthetic fiber reinforced concrete reinforcing the rear with a steel frame for a building wall surface. CONSTITUTION: The rear of a curtain wall of synthetic fiber reinforced concrete(FRC) 1 is reinforced with a steel frame 3. Instead of the steel frame 3, reinforcement can be made with a rib of carbon fiber reinforced concrete(CFRC). Or the rib is monolithically formed on the rear of the curtain wall of FRC, and the rear of the rib can be coated with a metal plate. Then, radiowave is little reflected on the surface of FRCI, the remainder reaches the boundary surface of the rear without receiving so much damping, it is little reflected thereon and comes out of the surface, but the remainder permeates it. By the constitution, surface reflected wave is composited with scattered wave from the rear with a phase different therefrom, and the curtain wall with large reflection loss can be obtained.

10. 发明专利

JPH07268999A RADIO WAVE TRANSMISSION TYPE WALL 失效
公开(公告)号：JPH07268999A
公开(公告)日：1995-10-17
申请号：JP31032594
申请日：1994-12-14
申请人： KAJIMA CORP
发明人： KOBAYASHI MIKIO , WAMI KOKI , KASASHIMA YOSHINORI , NAKAGAWA HIROAKI , AKIHAMA SHIGEYUKI , KOSUGI TAKATOMO
IPC分类号： E04B2/94 , E04F13/08
摘要： PURPOSE:To arrest the reflected wave of an incident radio wave, and prevent the interference of television radio wave reflection by using a synthetic fiber- reinforced concrete curtain wall in a building wall surface, and providing a ferrite tile in the opposed part of a beam steel frame. CONSTITUTION:For example, a vinylon fiber-reinforced concrete curtain wall is constituted by vinylon fiber-reinforced concrete 1 and Aramid mesh 2. The wall may be a glass fiber-reinforced concrete curtain wall, and a ferrite tile 3 or carbon fiber-reinforced concrete is provided in the part opposed to the beam B of the steel framed body of a building. The radio wave incident to the beam steel frame B is absorbed by the ferrite tile 3, and the radio wave incident to the wall surface is transmitted by the synthetic fiber or glass fiber- reinforced concrete to arrest the generation of the reflected wave.

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