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41. 发明专利

JPH0499998A PROCESSING OF CONTAMINATED CONCRETE BLOCKS 失效
公开(公告)号：JPH0499998A
公开(公告)日：1992-03-31
申请号：JP21833790
申请日：1990-08-20
申请人： SHIMIZU CONSTRUCTION CO LTD
发明人： NUMATA SHIGEO , ASHIDA AKIO
IPC分类号： G21F9/30
摘要： PURPOSE:To enable prevention of diffusion of tritium water by heating contaminated concrete blocks produced during demolition of building to treat tritium water so as to make glass on the surface. CONSTITUTION:In the concrete used to build a fusion reactor building and the like, 10% or less silica fume including ca. 90% silica is mixed to make the concrete composition close to glass, which easily transform to glass material, and thus the concrete has ca. 3.5-4 times stiffness. The inner wall of a building C constructed with this concrete is disrupted into large blocks B of contaminated concrete and then into small blocks S of ca. 20-30cm cubic concrete. The small blocks S are brought with a conveyer 2 into a furnace 1, to pass through the furnace of 2cm length in ca. two seconds and heated to 1,200 deg.C to melt the surface. Next, the small blocks S are sent through a cooler 3 with length of ca. 2m in ca. 10 seconds to blow with ambient temperature wind to solidify the molten surface into glass. By this, the diffusion of tritium water from the small blocks are prevented.

42. 发明专利

JPH0454498A PIPING FOR COOLING WATER AND ITS PURGING METHOD FOR TRITIUM HANDLING FACILITY 失效
公开(公告)号：JPH0454498A
公开(公告)日：1992-02-21
申请号：JP16518390
申请日：1990-06-22
申请人： SHIMIZU CONSTRUCTION CO LTD
发明人： NUMATA SHIGEO , ASHIDA AKIO
IPC分类号： G21B1/11 , G21B1/00 , G21F9/02 , G21F9/06
摘要： PURPOSE:To confine tritium water, which leaks owing to deterioration of the packing at the joint part between internal pipes of a double pipe, the breakage of an internal tube, etc., to an external pipe effectively by composing the piping for cooling water of the double pipe. CONSTITUTION:The piping 11 is constituted by coupling plural straight double pipes 12, 12... coaxially into piping parts 11a and coupling those piping parts 11 a and 11b coaxially by a double pipe 13 which is bent in an L shape. The double pipe 12 consists of an external pipe 21, an internal pipe 22, and a couple of metallic fixtures 23 and 23 which connect and fix the external pipe 21 and internal pipe 22. The external pipe 21 is a long-sized hollow columnar body made of, for example, aluminum allow. The internal pipe 22 is a hollow columnar body made of, for example, stainless steel and penetrates the external pipe 21, the external diameter is smaller than the internal diameter of the external pipe 21, and the axial length of the internal pipe 22 is longer then the axial length of the external pipe 21.

43. 发明专利

JP2002167884A RADIO ABSORPTIVE PRECAST CONCRETE PLATE AND FERRITE FIXING MEMBER 失效
公开(公告)号：JP2002167884A
公开(公告)日：2002-06-11
申请号：JP2000368211
申请日：2000-12-04
申请人： SHIMIZU CONSTRUCTION CO LTD
发明人： KANEKO TAKUMI , NUMATA SHIGEO , KOKUBU MAKOTO , YAMANE TOSHIHIRO , KUKU MASATAKE , OSADA KOJI
IPC分类号： E04B1/92 , E04C2/04 , H05K9/00
摘要： PROBLEM TO BE SOLVED: To provide a radio absorptive PC(precast concrete) plate and its manufacturing method for the impendence matching and dielectric property stabilization of a sash-bar-type radio absorptive material. SOLUTION: The radio absorptive PC plate 1 comprises sash-bar-type radio absorptive materials 2 including a ferrite magnetic material 7 spaced by ferrite anchoring materials 10 at regular intervals, and at least a radio wave reflector arranged together, extrusion molded plates 3 forming the surface 4 of the radio absorptive PC plate 1 having joining parts, and a concrete structure 5 constituting the wash-bar-type radio absorptive materials 2 and the extrusion molded plates 3 together, wherein the radio absorbing performance for electromagnetic wave of broad band width is stabilized and the PC plate is structurally lightened.

44. 发明专利

JP2002115346A WAVE-ABSORBING PRECAST CONCRETE PANEL 失效
公开(公告)号：JP2002115346A
公开(公告)日：2002-04-19
申请号：JP2000308273
申请日：2000-10-06
申请人： SHIMIZU CONSTRUCTION CO LTD
发明人： KANEKO TAKUMI , NUMATA SHIGEO , KOKUBU MAKOTO , YAMANE TOSHIHIRO , KUKU MASATAKE , OSADA KOJI
IPC分类号： E04B1/92 , B28B23/00 , H05K9/00
摘要： PROBLEM TO BE SOLVED: To provide a wave-absorbing PC panel at reduced cost while stabilizing its characteristics, and simplifying a connection for integrating, using a concrete structure, a wave absorber with an extrusion molded panel which forms a surface. SOLUTION: The wave-absorbing PC panel 1 comprises the wave absorber 2 constructed of strip-shaped ferrite magnetic plates 7 arranged in equally spaced relationship along the polarization direction of a target electric wave and reflecting reinforcement 8; the extrusion molded panel 3 forming the surface of the PC panel and having a ribbed back connection part with a concrete structure portion; and the concrete structure portion 5 where the wave absorber 2 and the extrusion molded panel 3 are integrally formed. Concrete placed between the ferrite magnetic bodies and the reflecting reinforcement is formed into an impedance-matching layer and a structure for interconnecting the wave- absorbing PC panels is simplified for light weight and reduced costs.

45. 发明专利

JP2002070212A PRECAST CONCRETE PANEL FOR ABSORBING RADIO WAVE AND ITS MANUFACTURING METHOD 失效
公开(公告)号：JP2002070212A
公开(公告)日：2002-03-08
申请号：JP2000266845
申请日：2000-09-04
申请人： SHIMIZU CONSTRUCTION CO LTD
发明人： KANEKO TAKUMI , NUMATA SHIGEO , YAMANE TOSHIHIRO , KUKU MASATAKE , OSADA KOJI
IPC分类号： E04B1/92 , B28B1/16 , B28B23/00 , E04B2/00 , H01Q15/14 , H05K9/00
摘要： PROBLEM TO BE SOLVED: To provide a precast concrete panel for absorbing radio waves and its manufacturing method capable of impedance matching and stabilization of dielectric property in a bridge-type radio wave absorber. SOLUTION: A precast concrete panel 1 for absorbing radio waves is built of a bridge-type radio wave absorber 2, an extrusion molding plate 3 and a concrete structural member 5, in order to stabilize the radio wave absorbing property in wide-area bands and achieve the light weight of the structure. The absorber 2 has the bridge-type ferrite magnetic materials placed at regular intervals by dielectrics and at least has radio wave reflectors. The plate 3 forms a surface 4 of the panel 1 with coupling parts. The member 5 constitutes the absorber 2 and the plate 3 integrally.

46. 发明专利

JP2002010336A BUILDING IN WHICH DIFFERENT RADIO COMMUNICATION SYSTEMS ARE EMPLOYED TOGETHER 失效
公开(公告)号：JP2002010336A
公开(公告)日：2002-01-11
申请号：JP2000189304
申请日：2000-06-23
申请人： SHIMIZU CONSTRUCTION CO LTD
发明人： KOKUBU MAKOTO , NUMATA SHIGEO , SATO HIROICHI , KOBAYASHI KATSUHIRO
IPC分类号： H05K9/00 , H04L12/28 , H04W4/04 , H04W16/26 , H04W16/30 , H04Q7/36
摘要： PROBLEM TO BE SOLVED: To employ different radio communication systems in a high density and efficient manner by preventing electric wave interference. SOLUTION: In a building where electric wave interference is prevented and radio communication systems in communication areas that can be used in a high density and efficient manner is different are used at the same time, for a radio communication system with a layer communication area, a space within the building is zoned using electric shields in accordance with the traffic amount of communication and a relay station is positioned in each zone, while for a radio communication system with a small communication area, a relay station 9 is positioned below a floor 6 of the zoned communication area or on a top of the ceiling, and the floor or ceiling opposite to an antenna 9a of the relay station is constructed with a panel 6a made of nonmetal, with at least both sides of the panel made of nonmetal being provided with a panel 6b made of metal.

47. 发明专利

JP2001049859A ELECTROMAGNETIC SHIELD APPLICATION FLOOR METHOD 失效
公开(公告)号：JP2001049859A
公开(公告)日：2001-02-20
申请号：JP22124499
申请日：1999-08-04
申请人： KANEGAFUCHI CHEMICAL IND , SHIMIZU CONSTRUCTION CO LTD
发明人： HATANO TAKANORI , ANDO HIROSHI , MASAOKA YOSHITERU , KAWAKUBO FUMIO , KOKUBU MAKOTO , NUMATA SHIGEO , MORIHIRO ISAO , ONO TADASHI
IPC分类号： B05D1/38 , B05D5/12 , E04B1/92 , E04F15/12 , H05K9/00
摘要： PROBLEM TO BE SOLVED: To easily apply an electromagnetic shield at a low cost by providing a wall face shield material on a wall face, applying a conductive application floor material on the upper face or the lower face of a floor concrete, and using the conductive application floor material on an electromagnetic shield material. SOLUTION: An L-shaped shield material 12 for connection is fixed on the boundary part of a floor concrete 1 and a wall 9, and a conductive application floor material 2 and a wall face shield material 10 are electrically connected by the shield material for the connection. Or the wall face shield material 10 is provided on the face of the wall 9, a first layer conductive application floor material 2a is applied on the upper face or the lower face of the floor concrete 1, and a second layer conductive application floor material 2b is applied on the conductive application floor material. The conductive application floor material hardens at ordinary temperature, is a conductive rubber composition capable of obtaining an arbitrary hardener, and contains a conductive rubber filler such as carbon powder, a carbon fiber and carbon black in the rubber composition. The volume inherent resistivity is preferably 100 Ω.cm or less from the point of electromagnetic shield performance even in the conductive rubber composition.

48. 发明专利

JP2000286588A MULTIPLE-TYPE RF ANECHOIC CHAMBER 失效
公开(公告)号：JP2000286588A
公开(公告)日：2000-10-13
申请号：JP8723099
申请日：1999-03-29
申请人： SAN TECHNOS KK , SHIMIZU CONSTRUCTION CO LTD
发明人： IWAOKA TORU , OSADA KOJI , NUMATA SHIGEO , KOKUBU MAKOTO
IPC分类号： H05K9/00
摘要： PROBLEM TO BE SOLVED: To provide a multiple-type RF anechoic chamber for accurately measuring a wide range of frequency, while reducing the thickness of an electronic wave absorption material provided on an inner surface for improving the effective bulk ratio. SOLUTION: In a multiple-type RF anechoic chamber 1, both RF anechoic chambers at transmission and reception sides 3 and 2, respectively are formed by applying an electronic wave absorbing material 10, that is composed by overlapping a pyramid-shaped resin foamed body in that a dielectric loss material, is contained and dispersed on a lattice-shaped electronic wave absorbing material made of a ferrite magnetic body inside a partition wall 8 that is provided with electromagnetic shielding 9, and both the RF anechoic chambers are joined by interposing a partition wall 4 with an opening 5 for fitting a test body, thus establishing electromagnetic shielding performance and improving the effective bulk ratio of the RF anechoic chambers and at the same time, improving measurement efficiency and accuracy corresponding to over a wide range of operation frequency of kHz to GHz level.

49. 发明专利

JP2000240189A RADIO WAVE ABSORBING PRECAST CONCRETE PLATE AND ITS MANUFACTURE 失效
公开(公告)号：JP2000240189A
公开(公告)日：2000-09-05
申请号：JP33001799
申请日：1999-11-19
申请人： SHIMIZU CONSTRUCTION CO LTD
发明人： KANEKO TAKUMI , OKUYAMA MASANORI , SUZUKI TADAHIKO , KUKU MASATAKE , OSADA KOJI , NUMATA SHIGEO , YAMANE TOSHIHIRO , KIMURA YUTAKA
IPC分类号： E04B1/92 , B28B23/00 , H05K9/00
摘要： PROBLEM TO BE SOLVED: To provide a lightweight radio wave absorbing PC plate which can be inexpensively manufactured as an external facing material of a building and is capable of preventing radio wave interference due to reflection at a building by efficiently absorbing electromagnetic waves such as television radio waves and to provide its manufacturing method. SOLUTION: This radio wave absorbing PC plate 1 is constituted of a crosspiece-type radio wave absorbing body 2 and a base concrete 3 to hold a crosspiece-type radio wave absorbing body unit 20 formed of a mortar layer 5 of the same width with the crosspiece-type radio wave absorbing body 2 provided on the front surface of the crosspiece-type radio wave absorbing body 2 and fixing anchors 6 planted in the mortar layer 5 to pass through between crosspiece-type ferrite magnetic bodies 11 and a radio wave reflecting plate 12 as an integrated crosspiece-type radio wave absorbing body so as to absorb electromagnetic waves efficiently to prevent radio wave interference due to reflection at a building. In its manufacture, the previously manufactured crosspiece-type radio wave absorbing body unit 20 is arranged opposite to a radio wave reflecting plate and set in a mold with the mortar layer 5 on the lower side, and base concrete is placed in the mold.

50. 发明专利

JP2000151172A ELECTROMAGNETIC SHIELD STRUCTURE 失效
公开(公告)号：JP2000151172A
公开(公告)日：2000-05-30
申请号：JP32831498
申请日：1998-11-18
申请人： SHIMIZU CONSTRUCTION CO LTD
发明人： YAMANE TOSHIHIRO , YAMAKAWA YUJI , NUMATA SHIGEO , MIYAJIMA TORU , CHIBA HAJIME , MATSUMOTO EIICHIRO
IPC分类号： E04B1/92 , H05K9/00
摘要： PROBLEM TO BE SOLVED: To reduce the cost while shortening the work period by laminating electromagnetic shield layers of lower performance than a desired level thereby totally forming an electromagnetic shield of a desired performance level. SOLUTION: An electromagnetic shield room 1 is defined by means of double partition walls 2, 2', for example. Double doors 3, 3' and glass windows 4, 4' are arranged at the opening of the partition walls 2, 2'. When the electromagnetic shield room 1 requires electromagnetic shielding of about 30 dB, for example, each partition wall 2, 2' is subjected to electromagnetic shielding on the order of 15-20 dB, for example. More specifically, electromagnetic shield layers of lower performance than a desired level are laminated to totally attain a desired performance level. Consequently, an inexpensive electromagnetic shield layer can be employed depending on the performance of the shield material being used. Furthermore, electromagnetic shield work between different members can be simplified.

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