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1. 发明专利

JP2002232365A RADIO WAVE MEASURING METHOD AND SYSTEM USING PLURAL ANTENNAS 失效
公开(公告)号：JP2002232365A
公开(公告)日：2002-08-16
申请号：JP2001030230
申请日：2001-02-06
申请人： TAKENAKA KOMUTEN CO , TAKENAKA DORO KK , TAKADA JUNICHI
发明人： WAKINAKA YOSHITAKA , HARAKAWA KENICHI , SAITO TOSHIO , KUNISHIMA TAKESHI , YOSHIMURA KENICHI , IWATA TAKEO , SHIMA KIMITOKI , TAKADA JUNICHI
IPC分类号： G01R29/08 , G01S13/74 , G01S13/91 , G07B15/00 , H04B17/00 , H04B17/364
摘要： PROBLEM TO BE SOLVED: To obtain a radio wave measuring method and system using a plurality of antennas whereby failures caused by reflected waves of radio waves can be suppressed. SOLUTION: An applicable point (a point receiving unnecessary reflected waves) is searched while the measuring system is moved (100). When a receiving level of radio waves exceeds a permissible range (denied in 102 and 104), reflected waves are extracted for a plurality of antennas having different azimuths after domain is measured (108, 110). Subsequently, a propagating path of radio waves to a measured part is geometrically analyzed by ray tracing (112), a propagation path is specified from the measurement result and the analysis result (114, 116), and a laser beam is emitted to a reflected part on the propagation path of the analysis result (118).

2. 发明专利

JP2002232364A RADIO AZIMUTH INDICATOR 失效
公开(公告)号：JP2002232364A
公开(公告)日：2002-08-16
申请号：JP2001030233
申请日：2001-02-06
申请人： TAKENAKA KOMUTEN CO , TAKENAKA DORO KK , TAKADA JUNICHI
发明人： WAKINAKA YOSHITAKA , HARAKAWA KENICHI , SAITO TOSHIO , KUNISHIMA TAKESHI , YOSHIMURA KENICHI , IWATA TAKEO , SHIMA KIMITOKI , TAKADA JUNICHI
IPC分类号： G01R29/08 , G01S13/74 , G01S13/91 , G07B15/00 , H04B17/00 , H04B17/364
摘要： PROBLEM TO BE SOLVED: To readily specify a propagating azimuth of reflected waves to reduce failures caused by reflected waves of radio waves. SOLUTION: A time domain for receiving and analyzing unnecessary reflected waves is measured while a measuring system is moved, a propagation path of radio waves is geometrically analyzed by ray tracing, a propagation path is specified from the measurement result and the analysis result, and the data is read (130). Next, an angle of an azimuth indication driving section is changed. Namely, an azimuth is found as to a straight line connecting the position coordinate of a reflecting point and the azimuth indication driving section, an attack angle and a rotation angle are computed regarding a radiating azimuth of a laser beam, and data is sent so as to drive an attack angle drive and a rotation angle drive by the computed attack angle and rotation angle (132, 134). Subsequently, a part around a reflected part is illuminated by turning on a light source. Therefore, an operator can visually confirm the reflected part.

3. 发明专利

JP2002236173A RADIO WAVE MEASURING METHOD AND SYSTEM BY SPACE-TIME MEASUREMENT 失效
公开(公告)号：JP2002236173A
公开(公告)日：2002-08-23
申请号：JP2001030225
申请日：2001-02-06
申请人： TAKENAKA KOMUTEN CO , TAKENAKA DORO KK , TAKADA JUNICHI
发明人： WAKINAKA YOSHITAKA , HARAKAWA KENICHI , SAITO TOSHIO , KUNISHIMA TAKESHI , YOSHIMURA KENICHI , IWATA TAKEO , SHIMA KIMITOKI , TAKADA JUNICHI
IPC分类号： G01S7/40 , G01S13/74 , G07B15/00
摘要： PROBLEM TO BE SOLVED: To provide a radio wave measuring method and a system by space- time measurement capable of suppressing obstacle caused by a reflected wave of the radio wave. SOLUTION: While moving this measuring system, a pertinent spot (spot where an unnecessary reflected wave is received) is searched (100), and, when the reception level of the radio wave exceeds a tolerance (102, the negative case in 104), the reflected wave is extracted after time domain measurement (108, 110). Then, a propagation route of the radio wave reaching a measuring part is analyzed geometrically by ray tracing processing (112), and the propagation route is specified by the measurement result and the analysis result (114, 116), and a laser beam is irradiated toward a reflection part on the propagation route of the analysis result (118).

4. 发明专利

JP2002111274A GRANULAR MATERIAL HAVING ELECTROMAGNETIC WAVE ABSORPTION PROPERTY AND ITS MANUFACTURING METHOD 失效
公开(公告)号：JP2002111274A
公开(公告)日：2002-04-12
申请号：JP2000299000
申请日：2000-09-29
申请人： TAKENAKA KOMUTEN CO , TAKENAKA DORO KK
发明人： MURAKAMI NOBUNAO , TAKAHASHI HIROSHI , YAMAMOTO MASATO , SAITO TOSHIO , HARAKAWA KENICHI , KUNISHIMA TAKESHI , YOSHIMURA KENICHI
IPC分类号： G07B15/00 , H05K9/00
摘要： PROBLEM TO BE SOLVED: To provide a granular material having an electromagnetic wave absorption property and its manufacturing method which contains electromagnetic wave absorbers at an average and adequate distribution and can easily manufacture a quality-stabilized electromagnetic wave absorbing material. SOLUTION: A granular material 30 having an electromagnetic wave absorption property is composed of electromagnetic wave absorbing absorbers 24 uniformly dispersed around a block of core 36 and mixed in a matrix. The absorbers 24 are averagely dispersed around the core 36 in the granular material 30 to stabilize the electromagnetic wave absorption property, and hence a granular material 30 having a quality-stabilized electromagnetic wave absorption power can be obtained.

5. 发明专利

JP2002078439A WEED KILLING STRUCTURE AND GRANULATED ELECTROMAGNETIC WAVE ABSORBING HEAT GENERATOR 失效
公开(公告)号：JP2002078439A
公开(公告)日：2002-03-19
申请号：JP2000268826
申请日：2000-09-05
申请人： TAKENAKA KOMUTEN CO , TAKENAKA DORO KK
发明人： SAKUMA MAMORU , HARAKAWA KENICHI , SAITO TOSHIO , KUNISHIMA TAKESHI
IPC分类号： A01M21/04 , E01H11/00 , H05B6/74
摘要： PROBLEM TO BE SOLVED: To obtain a weed killing structure which can easily, efficiently and safely kill weeds, and to obtain a granulated electromagnetic wave absorbing heat generator using the weed killing structure. SOLUTION: When electromagnetic waves are irradiated on a granulated electromagnetic wave absorbing heat generator 16 in a plant-culturing field 10, the electromagnetic waves are absorbed in the electromagnetic wave absorbing heat generator in the granulated electromagnetic wave absorbing heat generator 16 to generate heat. Thereby, weeds growing in soil 12 are burned and killed. Hence, the weeds can easily and efficiently be killed. Further, since a herbicide is not used, the weeds can be killed without polluting the soil and underground water. The granulated electromagnetic wave absorbing heat generator 16 is produced by mixing the electromagnetic wave absorbing heat generator with a granulating medium and then solidifying and shaping the mixture, and can therefore have large durability. Additionally, since the granulated electromagnetic wave absorbing heat generator 16 is granular, the granulated electromagnetic wave absorbing heat generator can simply and efficiently be set onto the soil 12 and can maintain the air permeability and water permeability of the soil 12.

6. 发明专利

JP2002021013A PAVING STRUCTURE 失效
公开(公告)号：JP2002021013A
公开(公告)日：2002-01-23
申请号：JP2001120110
申请日：2001-04-18
申请人： TAKENAKA KOMUTEN CO , TAKENAKA DORO KK , TAKENAKA DOBOKU
发明人： IWATA TAKEO , SAITO TOSHIO , HARAKAWA KENICHI , KUNISHIMA TAKESHI , YOSHIMURA KENICHI , FUJII YOSHIBUMI , ANDO SHINICHIRO
IPC分类号： E01C9/00 , E01C7/08 , E01C7/26 , H05K9/00
摘要： PROBLEM TO BE SOLVED: To efficiently absorb electromagnetic waves incident on a paved surface, and to prevent electromagnetic trouble due to reflected electromagnetic waves from the paved surface. SOLUTION: When radio waves having fixed frequency radiated from a radio-wave source are projected to the paved surface 31 as the external surface of the paving structure 20, at least a part of the radio waves is converted into heat energy by carbon fiber 32 mixed into an electromagnetic-wave absorbing layer 28 and absorbed. When all radio waves are not absorbed by the electromagnetic-wave absorbing layer 28 in this case, the residual radio waves not absorbed are radiated from the inside of the electromagnetic-wave absorbing layer 28 as radiant waves R0. The phase of the radiant waves R0 is positioned in the relationship of antiphase to the phase of direct reflected waves RR directly reflected by incident waves RI incident on the layer 28 and the surface of the layer 28 in this case. Accordingly, radiant waves R0, the incident waves RI and the direct reflected waves RR are synthesized, and denied mutually.

7. 发明专利

JP2001313490A GRANULAR BONDING MATERIAL MIXING WITH ELECTROMAGNETIC WAVE ABSORBER AND METHOD FOR MANUFACTURING STRUCTURE USING THE SAME 失效
公开(公告)号：JP2001313490A
公开(公告)日：2001-11-09
申请号：JP2000132496
申请日：2000-05-01
申请人： TAKENAKA KOMUTEN CO , TAKENAKA DORO KK
发明人： SAITO TOSHIO , HARAKAWA KENICHI , KUNISHIMA TAKESHI
IPC分类号： E01C7/08 , E04B1/92 , H01F1/00 , H01Q17/00 , H05K9/00
摘要： PROBLEM TO BE SOLVED: To provide granular bonding materials into which electromagnetic wave absorbers are mixed so that a structure whose quality is stable can be manufactured by efficiently arranging the electromagnetic wave absorbers inside in a mean and proper distributed state and a method for manufacturing the structure using the granular bonding materials. SOLUTION: Electromagnetic wave absorbers 24 for absorbing electromagnetic waves for communication or sensing are mixed into bonding materials 34 for manufacturing a structure by integrally bonding aggregates 32, so that granular bonding materials whose sizes are smaller than those of the aggregates 32 can be constituted. Then, in melting and hardening granular bonding materials 30 in a state that the granular bonding materials 30 and the aggregates 32 are uniformly mixed, the aggregates 32 are bonded so that an integral structure can be manufactured.

8. 发明专利

JP2001311107A PAVEMENT STRUCTURE 失效
公开(公告)号：JP2001311107A
公开(公告)日：2001-11-09
申请号：JP2000132525
申请日：2000-05-01
申请人： TAKENAKA KOMUTEN CO , TAKENAKA DORO KK
发明人： SAITO TOSHIO , HARAKAWA KENICHI , KUNISHIMA TAKESHI , YOSHIMURA KENICHI
IPC分类号： E01C9/00 , H05K9/00
摘要： PROBLEM TO BE SOLVED: To provide a pavement structure to reduce reflecting electromagnetic waves from a paved face by combining incident electromagrnetic waves to an electromagnetic waves absorbing layer and radiant electromagnetic waves from the electromagnetic waves absorbing layer together, and not to lower a reducing effect of the reflecting electromagnetic waves by combining the incident electromagnetic waves and radiant electromagnetic waves together, even in changing distances from a source of waves. SOLUTION: Thicknesses T1, T2 and T3 of plate shaped parts 36, 37 and 38 in an electromagnetic waves absorbing layer 28 are set for a propagated distance of an incident wave R1 to be equal or approximate to nλ/2 (λ is a wave length of an incident wave R1, n is a natural number), when the incident wave R1 incomes to a center part toward a radius in surfaces of the plate shaped parts 36, 37 and 38. This setting enables a radiant wave R0 the incident wave R1 and a direct reflecting wave RR to combine together around a surface of an electromagnetic waves absorving layer 28, without being affected by a distance from a source of waves 34 and to offset these waves R0, R1 and RR each other.

9. 发明专利

JP2002121842A REINFORCING STRUCTURE FOR ELECTROMAGNETIC WAVE ABSORPTION MATERIAL 失效
公开(公告)号：JP2002121842A
公开(公告)日：2002-04-26
申请号：JP2000313563
申请日：2000-10-13
申请人： TAKENAKA KOMUTEN CO , TAKENAKA DORO KK
发明人： YAMAMOTO MASATO , MURAKAMI NOBUNAO , TAKAHASHI HIROSHI , SAITO TOSHIO , HARAKAWA KENICHI , KUNISHIMA TAKESHI , YOSHIMURA KENICHI
IPC分类号： E04B1/92 , B32B7/02 , C03B19/08 , E04F13/08 , H05K9/00
摘要： PROBLEM TO BE SOLVED: To permit durability to be enhanced by conducting efficient reinforcement without inhibiting the electromagnetic wave absorption performance of an electromagnetic wave absorption material and enable an improvement in compatibility for a finishing material for the interior and exterior finish surfaces of the electromagnetic wave absorption material. SOLUTION: In reinforced electromagnetic wave absorption foam glass 10, electromagnetic wave absorption foam glass 12 can be efficiently reinforced because the glass 12 is reinforced in both side surfaces only by installing an electromagnetic wave transmittance reinforcing material 14 in the obverse-side surface 12A of the glass 12 and installing an electromagnetic wave reflection reinforcing material 16 in the reverse-side surface 12B of the glass 12. Additionally, the transmittance of electromagnetic waves through the material 14 can prevent interference with the electromagnetic wave absorption performance of the glass 12. Consequently, in the glass 10, the durability can be enhanced by conducting the efficient reinforcement without inhibiting the electromagnetic wave absorption performance of the glass 12, and by extension it is possible to enhance the compatibility for the finishing material for the interior and exterior finish surfaces of the glass 12.

10. 发明专利

JP2001313489A GRANULAR MATERIAL HAVING ELECTROMAGNETIC WAVE ABSORBING CHARACTERISTIC AND METHOD FOR MANUFACTURING THE SAME AND METHOD FOR MANUFACTURING STRUCTURE USING THE SAME 失效
公开(公告)号：JP2001313489A
公开(公告)日：2001-11-09
申请号：JP2000132493
申请日：2000-05-01
申请人： TAKENAKA KOMUTEN CO , TAKENAKA DORO KK , TAKENAKA DOBOKU
发明人： SAITO TOSHIO , HARAKAWA KENICHI , KUNISHIMA TAKESHI , FUJII YOSHIBUMI , ANDO SHINICHIRO
IPC分类号： E01C7/00 , E01C7/08 , H01F1/00 , H01Q17/00 , H05K9/00 , E01C13/06
摘要： PROBLEM TO BE SOLVED: To manufacture electromagnetic wave absorbing materials of which quality is stable by efficiently arranging electromagnetic wave absorber bodies inside the electromagnetic wave absorbing materials in a mean and proper distributed state. SOLUTION: Electromagnetic wave absorber bodies 24 such as carbon fibers are arranged in the surrounding of granular members 32 of the materials of a structure 18 for absorbing electromagnetic waves so that granular materials 30 can be constituted. Thus, in manufacturing a structure 18, the electromagnetic wave absorber bodies 24 can be efficiently arranged inside the structure 18 in a mean and proper distributed state by the granular materials 30. Thus, the structure of which quality is stable can be manufactured.

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