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1. 发明专利

JPH08194545A PRESSURE CONTROL VALVE USING ELECTRIC RHEOLOGY FLUID 失效
公开(公告)号：JPH08194545A
公开(公告)日：1996-07-30
申请号：JP12692295
申请日：1995-05-25
申请人： FUJIKURA KASEI KK
发明人： EDAMURA KAZUYA , YOKOTA SHINICHI , OTSUBO YASUBUMI
IPC分类号： F16K17/22 , C08K3/34 , C08K3/36 , F16K31/02 , G05D16/20
摘要： PURPOSE: To provide an easily operable pressure control valve capable of being easily manufactured at a low cost for improving the adjustment accuracy of pressure. CONSTITUTION: This valve is provided with a pressure control valve main body 4 provided with a fluid flow passage 3 where electric rheology fluid 2 flows and a pair of electrode parts 5 whose polarities are mutually different fixed to the pressure control valve main body 4 and projected to the fluid flow passage 3. The electric rheology fluid 2 is composed by dispersing dielectric particles 7 in an electrically insulated medium 6 and the dielectric particles 7 are inorganic/organic blended particles formed by a core body 8 composed of an organic high molecular compound and a surface layer 9 composed of an inorganic material provided with an electric rheology effect.

2. 发明专利

JPH08189011A SOUNDPROOF WALL OF RAILROAD OR ROAD 失效
公开(公告)号：JPH08189011A
公开(公告)日：1996-07-23
申请号：JP156895
申请日：1995-01-09
申请人： FUJIKURA LTD , FUJIKURA KASEI KK
发明人： ANZAI HIDENOBU , EDAMURA KAZUYA , GOTO MORITAKA , FURUICHI KENJI , OTSUBO YASUBUMI
IPC分类号： E01F8/00 , E01F8/02
摘要： PURPOSE: To control the transmitted quantity of light, and also to absorb and control the soundwaves in response to the application of a voltage to an electroinductive photofunctional fluid composition having an electric field arrangement effect. CONSTITUTION: A soundproof wall is made up by connecting a plurality of soundwave absorption/control devices 31 in the surface direction, and in the soundwave absorption/control device 31, electroinductive photofunctional fluid composition in which solid particles having an electric field arrangement effect have been included in an electrical insulating medium is housed in the inside of a hollow housing body in which at least a part of opposing surfaces out of two base plates 28 oppositely arranged is made transparent. A pair of transparent conductive layers 18 formed in the inside surface of the base plate 28 are arranged so as to face to either of the front and rear surfaces of the soundproof wall 30, and a voltage applying means 13 by which a desired voltage is applied between these transparent conductive layers 18 is provided.

3. 发明专利

JPH08160968A ECHO ADJUSTING DEVICE 失效
公开(公告)号：JPH08160968A
公开(公告)日：1996-06-21
申请号：JP30253394
申请日：1994-12-06
申请人： FUJIKURA LTD , FUJIKURA KASEI KK
发明人： ANZAI HIDENOBU , EDAMURA KAZUYA , GOTO MORITAKA , FURUICHI KENJI , OTSUBO YASUBUMI
IPC分类号： E04B1/99 , G10K11/178 , G10K15/00
摘要： PURPOSE: To easily change an echo characteristic and to change the acoustic characteristics of an acoustic space by selecting the impressed voltage on electrode plates housing an ENC fluid compsn., removing the sound waves of the frequency band desired to be removed and reflecting the sound waves exclusive of this band. CONSTITUTION: This echo adjusting device has the ENC(electrosensitive type sound wave adsorption controlling) fluid compsn. prepd. by incorporating EA particles having an EA (electric field arrangement) effect into an electrically insulating medium and a pair of the electrode plates housing the ENC fluid compsn. in this spacing and has sound wave absorption control plates 39a to 39c extended on the outer peripheral surfaces of columnar members 31 and a voltage impressing and regulating means 60 for impressing voltage between a pair of the electrode plates and regulating this voltage. The EA particles form chain bodies when the voltage is impressed between a pair of the electrode plates. These chain bodies resonate with the sound waves of the frequencies coinciding with the characteristic frequencies and absorb these sound waves. The sound waves of the other frequencies are reflected. The characteristic frequencies of the chain bodies themselves are made to coincide with the frequencies of the components desired to be removed by regulating the impressed voltage.

4. 发明专利

JPH08158757A SOUNDPROOF GLASS WINDOW 失效
公开(公告)号：JPH08158757A
公开(公告)日：1996-06-18
申请号：JP30253194
申请日：1994-12-06
申请人： FUJIKURA LTD , FUJIKURA KASEI KK
发明人： ANZAI HIDENOBU , EDAMURA KAZUYA , GOTO MORITAKA , FURUICHI KENJI , OTSUBO YASUBUMI
IPC分类号： E06B5/20 , C03C27/06
摘要： PURPOSE: To provide a soundproof glass window which constitutes a glass window by using an electric sensitive type sound wave absorption control fluid composition based on an electric field arrangement effect and is capable of performing sound wave absorption control and provides an excellent sound insulating performance. CONSTITUTION: Two glass sheets 31 are arranged with a clearance where the peripheral edges of the glass sheets 31 are blocked in airtightness, thereby forming a double glazing glass window. A sound wave absorption control panel 20 is installed between the glass sheets 31 with a clearance where the panel 20 houses an electricity sensitive type sound wave control fluid composition which contains solid particles having an electric field arrangement effect in an electric insulating medium in the clearance between a pair of transparent boards 27 and 28 laid out as opposed with a clearance on the internal surface of the glass sheets 31 and an electrode board comprising transparent conducting layers 17 and 18. Voltage is applied between the paired transparent conducting layers 17 and 18. There are also provided an electric supply source 13 and a switch 14 which makes it possible to vary the application voltage.

5. 发明专利

JPH08149745A NOISE REDUCTION UNIT FOR MOTOR 失效
公开(公告)号：JPH08149745A
公开(公告)日：1996-06-07
申请号：JP29182894
申请日：1994-11-25
申请人： FUJIKURA LTD , FUJIKURA KASEI KK
发明人： GOTO MORITAKA , FURUICHI KENJI , EDAMURA KAZUYA , ANZAI HIDENOBU , OTSUBO YASUBUMI
IPC分类号： H02K5/24 , H02K11/00
摘要： PURPOSE: To obtain a noise redution unit for absorbing noise from a motor to achieve noise reduction. CONSTITUTION: The noise reduction unit for a motor comprises acoustic boards 30a, 30b covering the outer circumference of the motor 1, wherein the acoustic board 30a, 30b comprises an electrosensitive fluid composition for controlling absorption of sound wave produced by adding particles exhibiting field arranging effect into an electric insulating medium, and a pair of electrode plates opposing each through a gap filled with the electrosensitive fluid composition for controlling absorption of the sound wave. The noise reduction unit further comprises voltage controllers 60a, 60b for applying a voltage between the pair of electrode plates and regulating the voltage.

6. 发明专利

JPH08145274A AIR-FEED DUCT 失效
公开(公告)号：JPH08145274A
公开(公告)日：1996-06-07
申请号：JP29182794
申请日：1994-11-25
申请人： FUJIKURA LTD , FUJIKURA KASEI KK
发明人： GOTO MORITAKA , FURUICHI KENJI , EDAMURA KAZUYA , ANZAI HIDENOBU , OTSUBO YASUBUMI
IPC分类号： F16L55/04 , F24F13/02 , G10K11/16 , G10K11/178
摘要： PURPOSE: To provide an air-feed duct which is constituted to reduce the generation of noise in relation to noise of the air-feed duct having frequency distribution differed with an installation state and a use state. CONSTITUTION: An air-feed duct comprises a cylindrical wall body 2a on the inner surface of which a sound absorbing plate 6 is mounted. The sound absorbing plate 6 comprises a pair of electrode plates positioned facing each other; an ENC fluid composition disposed between a pair of electrode plates and having EA particles contained in an electric insulation property medium; and a voltage application adjusting means 20 to apply a voltage between a pair of electrode plates and adjust a voltage.

7. 发明专利

JPH08137477A SOUND ABSORBING PANEL 失效
公开(公告)号：JPH08137477A
公开(公告)日：1996-05-31
申请号：JP27274994
申请日：1994-11-07
申请人： FUJIKURA LTD , FUJIKURA KASEI KK
发明人： GOTO MORITAKA , FURUICHI KENJI , EDAMURA KAZUYA , ANZAI HIDENOBU , OTSUBO YASUBUMI
IPC分类号： E04B1/86 , C10N30/00 , C10N40/06 , E04B1/99 , G10K11/16 , G10K11/178
摘要： PURPOSE: To provide a sound absorbing panel which contributes to an additional improvement in a soundproof effect to noises and improvement in the acoustic characteristics of space, is small in size and is installable in a desired place. CONSTITUTION: An aperture 25 is formed on one surface of a flat planar sound absorbing panel body 24. A sound absorption controller formed by housing an ENC fluid compsn. prepd. by incorporating solid particles 2 having an electric field arranging effect into electrical insulating media 1 between a pair of electrode plates 17 and 18 is fitted into this aperture 25. Two hanging fittings 26, 27 are fixed apart intervals to the upper frame part of this sound absorbing panel body 24. The sound absorbing panel is hung to the ceiling, wall, etc., of a room by means of chains 28a, 28b by passing these chains 28a, 28b through respective holes 26a, 27a of the hanging fittings 26, 27. A pair of the electrode plates 17, 18 are so constituted as to be impressed with voltage. The on/off of the impressed voltage are executed by a switch 14 and the regulation of the impressed voltage value is executed by a voltage control knob 30.

8. 发明专利

JPH08137476A SOUND WAVE SUPPRESSOR FOR LISTENING ROOM AND THE LIKE 失效
公开(公告)号：JPH08137476A
公开(公告)日：1996-05-31
申请号：JP27149494
申请日：1994-11-04
申请人： FUJIKURA LTD , FUJIKURA KASEI KK
发明人： EDAMURA KAZUYA , ANZAI HIDENOBU , GOTO MORITAKA , FURUICHI KENJI , OTSUBO YASUBUMI
IPC分类号： E04B1/99 , G10K11/178 , G10K15/00
摘要： PURPOSE: To provide a sound wave suppressor for listening rooms, etc., capable of imparting desired acoustic characteristics to the listening rooms, etc., by absorbing the sound waves of desired oscillation frequencies according the applications of the listening rooms, etc., and changing sound absorption characteristics. CONSTITUTION: A sound wave absorption controller 10 consisting of a hollow panel having a pair of electrode plates on its front surface and rear surface, an electrosenstive type sound wave absorption controlling fluid compsn. which is prepd. by incorporating solid particle's having an electric field arranging effect into electrical insulating media and is housed between a pair of these electrode plates and a variable power source 16 for impressing a desired voltage between a pair of the electrode plates is mounted at a rectangular frame 6 and casters 6d are mounted at the lower part of this frame 6 to make the frame 6 freely movable. As a result, the acoustic characteristics meeting the kinds, etc., of the musical instruments to be played and the musical tones to be listened are imparted to the listening rooms, etc.

9. 发明专利

JPH08135430A MUFFLER 失效
公开(公告)号：JPH08135430A
公开(公告)日：1996-05-28
申请号：JP27274894
申请日：1994-11-07
申请人： FUJIKURA LTD , FUJIKURA KASEI KK
发明人： GOTO MORITAKA , FURUICHI KENJI , EDAMURA KAZUYA , ANZAI HIDENOBU , OTSUBO YASUBUMI
IPC分类号： F01N1/04 , G10K11/16 , G10K11/178
摘要： PURPOSE: To absorb an acoustic wave of desired frequency (to eliminate sound) in exhaust sound by furnishing a composition capable of changing characteristic frequency by applied voltage in accordance with frequency of the acoustic wave to absorb. CONSTITUTION: A muffler case 27 is constituted by jointing a pair of divided cases 26 on each inner surfaces of which a heat resistance sound absorbing material 24 is pressed and fixed through a drilled plate 25, and a pipe 29 for exhaust passage formation on a peripheral surface of which a large number of holes 28 are formed in this muffler case 27 by way of passing through it. Exhaust sound is muffled by resonance by a large number of the holes 28 of the pipe 29 and sound absorption by the heat resistance sound absorbing material 24. Additionally, one electrode plate 18 of a pair of the electrode plates 17, 18 facing against each other with a clearance between them is fixed on an inner peripheral surface of a pair of horizontal parts facing against each other of the muffler case 27, an ENC fluid composition constituted by containing solid particulates having an electric field arranging effect in an electric insulating medium is stored between a pair of the electrode plates 17, 18, and voltage is applied to a pair of the electrode plates 17, 18 by a variable electric power source 13.

10. 发明专利

JPH08129390A REFRIGERATOR 失效
公开(公告)号：JPH08129390A
公开(公告)日：1996-05-21
申请号：JP26789494
申请日：1994-10-31
申请人： FUJIKURA LTD , FUJIKURA KASEI KK
发明人： GOTO MORITAKA , FURUICHI KENJI , EDAMURA KAZUYA , ANZAI HIDENOBU , OTSUBO YASUBUMI
IPC分类号： F25D19/00 , G10K11/178
摘要： PURPOSE: To decrease the noises generated by a refrigerator itself by providing the refrigerator with a sound absorbing device composed of a pair of electrode plates having ENC fluid compsns. between the electrode plates and a means for variable regulating the voltage to be impressed. CONSTITUTION: The sound absorbing devices 100A, 100B are composed of casings 15, a pair of the electrode plates 17, 18 arranged to face each other in these casings 15, the ENC (electrosensitive type sound wave absorption controlling) fluid compsns. 10 prepd. by incorporating EA particles 2 having an EA (electric field arrangement) effect into electrically insulating media 1 and the variable power sources 60A, 60B for impressing the voltage to the electrode plates 17, 18 and variably regulating the voltage. The EA particles 2 are arranged and bonded like chains to form chain bodies when the voltage is impressed between the electrode plates 17 and 18. The characteristic vibration frequencies of the chain bodies themselves are made to coincide with the frequency of the sound waves 1 desired to be removed. Then, the noises generated by the refrigerator itself are effectively absorbed by regulating the impressed voltage.

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