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1. 发明专利

JP2002076679A ELECTROMAGNETIC WAVE ABSORBER 失效
公开(公告)号：JP2002076679A
公开(公告)日：2002-03-15
申请号：JP2000264119
申请日：2000-08-31
申请人： TAKENAKA KOMUTEN CO , NIPPON SHEET GLASS CO LTD , NIPPON SHEET GLASS ENVIRONMENT
发明人： HARAKAWA KENICHI , SAITO TOSHIO , MURATA KENJI , TOGASHI MOTOYASU , HOSHINO YASUSHI
IPC分类号： H05K9/00 , H01Q17/00
摘要： PROBLEM TO BE SOLVED: To widen the electronic wave absorbing band of an electromagnetic wave absorber and to reduce the thickness of the absorber. SOLUTION: An electronic absorbing panel 10 is provided with insulating substrates 12, 13, and 14 which are arranged in parallel with each other and a resistance film 16 is formed on the whole surface of the substrate 12. In addition, a reflecting film 18 is formed on the whole surface of the substrate 14 and split conductor sections 64 are formed on the substrate 13. The conductor sections 64 are constituted by alternately forming a plurality of flat long conductive films 66 having a fixed thickness on both surfaces of the substrate 13 in such a way that the films 66 are arranged on the surfaces, with their lengthwise directions being oriented in a fixed direction (a second direction perpendicular to the plane of the figure) which is perpendicular to the arranging direction of the resistance film 16 and reflecting film 18, so that the films 66 adjoining to each other in the widthwise direction (a first direction perpendicular to the arranging direction of the resistance film 16 and reflecting film 18 and the second direction) may be arranged at intervals d.

2. 发明专利

JP2002076671A ELECTROMAGNETIC WAVE ABSORBER AND METHOD FOR ABSORBING ELECTROMAGNETIC WAVE 失效
公开(公告)号：JP2002076671A
公开(公告)日：2002-03-15
申请号：JP2000264118
申请日：2000-08-31
申请人： TAKENAKA KOMUTEN CO , NIPPON SHEET GLASS CO LTD , NIPPON SHEET GLASS ENVIRONMENT
发明人： HARAKAWA KENICHI , SAITO TOSHIO , MURATA KENJI , TOGASHI MOTOYASU , HOSHINO YASUSHI
IPC分类号： H05K9/00 , H01Q17/00
摘要： PROBLEM TO BE SOLVED: To provide a method for absorbing electromagnetic wave by which an electromagnetic wave to be absorbed is absorbed by superposing an opposite-phase electromagnetic wave upon the electromagnetic wave and to provide a wave absorber which can absorb a wide band of electromagnetic waves by applying the method. SOLUTION: Between a resistance film which reflects part of arriving electromagnetic waves and transmits the other part of the waves and a reflecting film which reflects the arriving waves, an specific band reflecting antenna film on one surface of which many linear antenna elements having the same shape are formed at a fixed density and which only reflects a specific band of electromagnetic waves is provided. A specific band of electromagnetic waves arriving at an electromagnetic wave absorbing panel and having a frequency f1 are absorbed, because an electromagnetic wave Er11 reflected by the resistance film and another electromagnetic wave Er21 reflected by the reflecting antenna film become opposite in phase. In addition, another specific band of electromagnetic waves arriving at the absorbing panel and having a frequency f2 are absorbed, because an electromagnetic wave Er12 reflected by the resistance film and another electromagnetic wave Er22 reflected by the reflecting film become opposite in phase.

3. 发明专利

JP2002076682A ELECTROMAGNETIC WAVE ABSORBING BODY AND METHOD FOR ABSORBING THE SAME 失效
公开(公告)号：JP2002076682A
公开(公告)日：2002-03-15
申请号：JP2000266060
申请日：2000-09-01
申请人： TAKENAKA KOMUTEN CO , NIPPON SHEET GLASS CO LTD , NIPPON SHEET GLASS ENVIRONMENT
发明人： HARAKAWA KENICHI , SAITO TOSHIO , MURATA KENJI , TOGASHI MOTOYASU , HOSHINO YASUSHI
IPC分类号： E04B1/92 , H01F1/00 , H01Q17/00 , H05K9/00
摘要： PROBLEM TO BE SOLVED: To reduce the thickness of an electromagnetic wave absorbing body. SOLUTION: A split conductor layer 22 which comprises a plurality of conductive films arrayed with a space in two directions across the direction where a resistance film 16 and a reflective film 18 are aligned is provided between the resistance film 16 where a part of an incoming electromagnetic wave is reflected while another part transmits and the reflective film 18 which reflects the in-coming electromagnetic wave. A magnetic body layer 32 is provided between the split conductor layer 22 and the reflective layer 18. Magnetic body layers 32A and 32B of the magnetic body layer 32 comprise many magnetic body plates where a magnetic body film is formed on a thin, long square-like supporting body, with its short side parallel to the aligned direction. Related to the magnetic body plate of the magnetic body layer 32A, its major side is parallel to a first direction (the direction vertical to a paper face in figure (A)) orthogonal to the aligned direction while arrayed with a space in a second direction (the direction vertical to the paper face in figure (B)) orthogonal to the first direction. Related to the magnetic body plate of the magnetic body layer 32B, its major side is parallel to the second direction while arrayed with a space in the first direction.

4. 发明专利

JP2002076677A WAVE ABSORPTIVE PANEL 失效
公开(公告)号：JP2002076677A
公开(公告)日：2002-03-15
申请号：JP2000263932
申请日：2000-08-31
申请人： NIPPON SHEET GLASS ENVIRONMENT , NIPPON SHEET GLASS CO LTD , TAKENAKA KOMUTEN CO
发明人： KOTAKE KAZUHIRO , TOGASHI MOTOYASU , HOSHINO YASUSHI , MURATA KENJI , HARAKAWA KENICHI , SAITO TOSHIO
IPC分类号： E04B1/92 , H05K9/00
摘要： PROBLEM TO BE SOLVED: To provide a wave absorptive panel which can prevent a radio wave environment from getting worse due to radio interference on television or radio LAN, can be formed of a general building material in the optimum state, and has a light weight, thin thickness, and a high strength. SOLUTION: This wave absorptive panel is provided with a matching layer 2 which is formed on one surface and composed of a conductor and a reflecting layer 3 which is formed on the other surface and composed of a conductor. The panel is also provided with a plate-like dielectric substance 1 which is arranged between the layers 2 and 3 and has split conductive layers 4. The dielectric substrate 1 is formed of a general building material.

5. 发明专利

JP2002076676A WAVE ABSORPTIVE PANEL 失效
公开(公告)号：JP2002076676A
公开(公告)日：2002-03-15
申请号：JP2000263931
申请日：2000-08-31
申请人： NIPPON SHEET GLASS ENVIRONMENT , NIPPON SHEET GLASS CO LTD , TAKENAKA KOMUTEN CO
发明人： TOGASHI MOTOYASU , HOSHINO YASUSHI , HARAKAWA KENICHI , SAITO TOSHIO , MURATA KENJI
IPC分类号： E04B1/92 , B32B7/02 , H05K9/00
摘要： PROBLEM TO BE SOLVED: To provide a wave absorptive panel which has incombustibility, a light weight, uniform layers between a conductive film for matching and divided conductive films and between the divided conductive films and a conductive film for reflection, and a wave absorbing characteristic that does not change much even when the incident angle of electric waves changes and does not become bulky. SOLUTION: The wave absorptive panel is constituted of a first insulating substrate 1 having the conductive film 2 for matching, a substrate 3 having the conductive film 4 for reflection which is faced oppositely to the substrate 1, and a second insulating substrate 5 which is faced oppositely to the substrates 1 and 3 between the substrates 1 and 3 and has the divided conductive films 6 on one surface. The first and second insulating substrates 1 and 5 are coupled with each other by interposing a first adhesive layer 7 which brings the substrates 1 and 5 nearer to each other while the layer 7 insulates the substrates 1 and 5 from each other between the substrates 1 and 5. In addition, the second insulating substrate 5 and substrate 3 are coupled with each other by interposing a second adhesive layer 8 which brings the substrates 5 and 3 nearer to each other to a prescribed distance or shorter between the substrates 5 and 3. This wave absorptive panel is used with the first insulating substrate 1 on the radio wave arriving side.

6. 发明专利

JP2002151885A RADIO WAVE ABSORBING PANEL AND METHOD FOR MANUFACTURING THE SAME 审中-公开
公开(公告)号：JP2002151885A
公开(公告)日：2002-05-24
申请号：JP2001263805
申请日：2001-08-31
申请人： NIPPON SHEET GLASS CO LTD , NIPPON SHEET GLASS ENVIRONMENT , TAKENAKA KOMUTEN CO
发明人： MURATA KENJI , MASAKAGE MICHIHIRO , TOGASHI MOTOYASU , HOSHINO YASUSHI , HARAKAWA KENICHI , SAITO TOSHIO
IPC分类号： C03C27/06 , C03C27/12 , H05K9/00
摘要： PROBLEM TO BE SOLVED: To provide a radio wave absorbing panel, having nonflammability, being light-weight and thin, capable of keeping stability between first and second conductors to keep insulation state, requiring not so much cost and work, having radio wave absorbing characteristics which are insusceptible to variations in the angle of incidence, and to provide a method for manufacturing the same. SOLUTION: The panel is provided with a first conductor 2 reflecting one part of a radio wave and permeating the other part, a second conductor 6 arranged, so as to be close to the conductor 2 and segmented into a plurality of segments in the magnetic field direction of a radio wave to be absorbed and a third conductor 4, arranged so as to be apart from the conductor 6 according to the frequency of the radio wave to be absorbed for reflecting the radio wave to be absorbed in order from the arrived direction of the radio wave to be absorbed. Also, the panel is provided with a first insulation layer 7 between the conductors 2 and 6, and a second insulation layer 8 between the conductors 6 and 4. Of these conductors 2, 6 and 4, one conductor is provided directly on a sheet glass.

7. 发明专利

JP2002076681A ELECTROMAGNETIC WAVE ABSORBING BODY AND METHOD FOR ABSORBING THE SAME 失效
公开(公告)号：JP2002076681A
公开(公告)日：2002-03-15
申请号：JP2000266059
申请日：2000-09-01
申请人： TAKENAKA KOMUTEN CO , NIPPON SHEET GLASS CO LTD , NIPPON SHEET GLASS ENVIRONMENT
发明人： HARAKAWA KENICHI , SAITO TOSHIO , MURATA KENJI , TOGASHI MOTOYASU , HOSHINO YASUSHI
IPC分类号： E04B1/92 , H05K9/00
摘要： PROBLEM TO BE SOLVED: To widen an electromagnetic wave absorbance band and to make an electromagnetic wave absorbing body thinner. SOLUTION: A specific band reflective antenna film where many linear antenna elements of the same shape are formed with a constant density on the same plane for reflecting only an electromagnetic wave in a specific band is provided between a resistance film where a part of incoming electromagnetic wave is reflected while another part transmits and a reflective film which reflects the in-coming electromagnetic wave. A split conductor layer is provided between the resistance film and an antenna layer while a magnetic body layer is provided between the antenna layer and the reflective film. The electromagnetic wave of a frequency f1, in the specific band, which arrives at an electromagnetic wave absorbing panel is absorbed as the phase of an electromagnetic wave Er11 reflected on the resistance film is opposite to that of an electromagnetic wave Er21 reflected on the specific band reflective antenna film. The electromagnetic wave of frequency f2, in a prescribed band different from the specific band, which arrives at the electromagnetic wave absorbing panel is absorbed as the phase of the electromagnetic wave Er12 reflected on the resistance film is opposite to that of an electromagnetic wave Er22 reflected on the reflective film.

8. 发明专利

JP2002076678A ELECTROMAGNETIC WAVE ABSORBER AND METHOD FOR ABSORBING ELECTROMAGNETIC WAVE 失效
公开(公告)号：JP2002076678A
公开(公告)日：2002-03-15
申请号：JP2000264117
申请日：2000-08-31
申请人： TAKENAKA KOMUTEN CO , NIPPON SHEET GLASS CO LTD , NIPPON SHEET GLASS ENVIRONMENT
发明人： SAITO TOSHIO , HARAKAWA KENICHI , MURATA KENJI , TOGASHI MOTOYASU , HOSHINO YASUSHI
IPC分类号： B32B7/02 , H01Q17/00 , H05K9/00
摘要： PROBLEM TO BE SOLVED: To provide a method for absorbing electromagnetic wave by which the constitution of an electromagnetic wave absorber can be simplified and weight of the absorber can be reduced, and then, the absorber can be enabled to absorb electromagnetic waves arriving from different directions by easily generating an electromagnetic wave absorbing function at a desired spot. SOLUTION: The electronic wave absorber is constituted in such a way that a resistance film 16 which reflects part of arriving electromagnetic waves and transmits the other part of the waves is formed on one surface of a plate- like insulating substrate 12 and a reflecting film 18 which reflects the arriving waves is formed on one surface of another plate-like insulating substrate 14 which is arranged in parallel with the substrate 12 at an interval. Then split conductor sections 20 which are composed of a plurality of conductors arranged at intervals in a direction crossing the arranging direction of the resistance film 16 and reflecting film 18 are formed on the other surface of the insulating substrate 14 so that the sections 20 may be positioned between the resistance film 16 and reflecting film 18.

9. 发明专利

JP2002076672A ELECTROMAGNETIC WAVE ABSORBER 失效
公开(公告)号：JP2002076672A
公开(公告)日：2002-03-15
申请号：JP2000264120
申请日：2000-08-31
申请人： TAKENAKA KOMUTEN CO , NIPPON SHEET GLASS CO LTD , NIPPON SHEET GLASS ENVIRONMENT
发明人： HARAKAWA KENICHI , SAITO TOSHIO , MURATA KENJI , TOGASHI MOTOYASU , HOSHINO YASUSHI
IPC分类号： H05K9/00 , H01Q17/00
摘要： PROBLEM TO BE SOLVED: To widen the electromagnetic wave absorbing band of an electromagnetic wave absorber and, at the same time, to reduce the thickness of the absorber. SOLUTION: A reflecting film 18 is formed on an insulating substrate 14 of insulating substrates 12A, 12B, and 14 which are arranged in parallel with each other at fixed intervals and, at the same time, resistance films 16 and split conductive films 66 are respectively provided on the substrates 12A and 12B. Then the distance between the first resistance film 16 on the substrate 12A and the second resistance film 16 on the substrate 12B is made different from the distance between the second resistance film 16 and reflecting film 18. Consequently, the electromagnetic wave absorbing band of the electromagnetic wave absorber can be widened, because, when electromagnetic waves arrive from the substrate 12A side, the frequency f1 at which the electromagnetic wave reflected by the first reflecting film 16 and the electromagnetic wave reflected by the second resistance film 16 become opposite in phase, the frequency f2 at which the electromagnetic wave reflected by the first resistance film 16 and the electromagnetic wave reflected by the reflecting film 18 become opposite in phase, and the frequency f3 at which the electromagnetic wave reflected by the first resistance film 16 and the electromagnetic wave reflected by the reflecting film 18 become opposite in phase are different from each other. In addition, the thickness of the absorber can be reduced by the split conductive films 66.

10. 发明专利

JP2002338309A ELECTROMAGNETIC WAVE SHIELDING MULTILAYER GLASS 失效
公开(公告)号：JP2002338309A
公开(公告)日：2002-11-27
申请号：JP2001151272
申请日：2001-05-21
申请人： NIPPON SHEET GLASS CO LTD , NIPPON SHEET GLASS ENVIRONMENT
发明人： MASAKAGE MICHIHIRO , MURATA KENJI , TOGASHI MOTOYASU , HOSHINO YASUSHI
IPC分类号： C03C27/06
摘要： PROBLEM TO BE SOLVED: To provide an electromagnetic wave shielding multilayer glass which maintains a high electromagnetic wave shielding performance even at the curing shrinkage of sealant and the change of internal pressure in the multilayer glass. SOLUTION: In this electromagnetic wave shielding multilayer glass 10, a transparent conductive film 14 is deposited on the inner surface of at least one sheet of plate glass 12 between at least two sheets of plate glasses 11, 12, the two sheets of plate glasses 11, 12 are opposite to each other with an interposed spacer 13, the gap among the plate glasses 11, 12 and the spacer 13 is filled with the first sealant 15 and the peripheral void formed by the opposed plate glasses 11, 12 and the spacer 13 is filled with the second sealant 16. Therein, further, a conductive covering material 18 is attached to the peripheral part of the two sheets of plate glasses 11, 12, a conductive cloth tape 17 which is connected with the periphery of the transparent conductive film 14 and the second sealant 16 is stuck to the edge of the plate glass 12 and the transparent conductive film 14 is electrically conducted with the conductive covering material 18 via the conductive cloth tape 17.

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