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Patent Searching and Data


Matches 401 - 450 out of 1,389

Document Document Title
JP4030056B2  
JP4006391B2  
JP2007074499A
To provide an electroacoustic transducer in which reduction of output sound pressure and rise of distortion ratio are hard to occur even when it is influenced by an excess external impact by improving shock resistance.In the electroacous...  
JP3870949B2
To prevent deterioration of tone quality in an inverse cone type speaker system. In the speaker system 1, a conic shape cone paper 2 is attached to a frame 3 in a convex shape. A bobbin 8 with a voice coil 9 is fixed to the cone paper 2....  
JP2006319595A
To provide a method of manufacturing a ribbon microphone by which the tension of a ribbon type diaphragm can be adjusted with uniform quality without the need for a skill and the vibrating state of the ribbon type diaphragm can easily be...  
JP3844641B2
To provide an electric/acoustic converter capable of surely fixing a frame and a housing by laser welding, A diaphragm unit part 3 is provided with a diaphragm frame 51, a diaphragm 52, and a resin film 53. The diaphragm 52 is arranged i...  
JP2006304295A
To provide a loudspeaker with low-frequency oscillation capable of emitting sound whose frequency is relatively low and improving the acoustic effect of earphones.In a housing 21, a ring portion 211 is formed by extending the bottom inwa...  
JP3822600B2  
JP3808951B2
To improve the resonance effect of a diaphragm by specifying the thickness of the diaphragm in a machine in which a vibrator is attached to the diaphragm, the vibrator is driven by an ultrasonic wave generator. In an ultrasonic cleaning ...  
JP2006186615A
To enhance shock resistance at the intermediate part of a frame which cantilevers an armature while keeping compact configuration of an electric oscillation transducer of balanced armature type.The gap between the rear surface wall 32a o...  
JP2006157753A
To improve reliability by making the holding strength of a magnetic circuit portion ample.In a sub-panel 3 serving as the enclosure of a magnetically driven actuator, an external cylinder 3a is connected to an internal cylinder 3b in the...  
JP2006060851A
To provide a method for improving and manufacturing an electro-dynamic planar loudspeaker.The electro-dynamic loudspeaker typically includes a diaphragm having a conductor applied to one of its surfaces. The diaphragm is secured to a fra...  
JP3749662B2  
JP2006054917A
To improve an electrodynamic type planar speaker, and to provide a method for manufacturing the electrodynamic type planar speaker.The electrodynamic type speaker typically includes a diaphragm having a conductor applied to one of surfac...  
JP3747361B2
To provide an electromagnetic acoustic transducer that can reduce a stress applied to a coil wire and ensure high reliability. The electromagnetic acoustic transducer 1 consists of a base 24 made of a magnetic material, a magnetic core 2...  
JP2006050665A
To improve an electrodynamic type planar loudspeaker, and to provide a method for manufacturing the electrodynamic type planar loudspeaker.The electrodynamic type loudspeaker typically includes a diaphragm, having a conductor applied to ...  
JP2006041768A
To provide an electroacoustic transducer which has enhanced anti-shock performance and therefore hardly undergoes a change in an output sound pressure and a distortion factor even when receiving an external shock.In the electroacoustic t...  
JP2006042021A
To provide a compact and easily easy-to-handle speaker for a helmet by which sound can be heard even under a noisy environment.A movable device 3 is oscillated by converting an electric signal obtained from a sound source into oscillatio...  
JP2006033787A
To provide a bone conduction device, which can be mounted efficiently, without generating dead spaces, when having a limited installation space, such as a cellular phone case having a large display screen, and a tympanum for such bone co...  
JPWO2004030406A1
ダイヤフラムの表面積をできるだけ大きくし つつ、組立が容易で信頼性の向上が図れる電 気音響変換器を提供する。ケース1とカバー 2により枠部材3を挟持してハウジング...  
JP2006500887A
a [subject] -- the polarity of the signal supplied to a magnetic body is controlled, and the drive mechanism which used the magnetic body as a driving source for making a driver drive is offered. [Solution means] Drive mechanism is equip...  
JP2005286984A
To provide a speaker for mobile terminal capable of realizing high sound quality after establishing wide frequency characteristics and good high frequency distortion characteristics.The speaker includes a frame having a side wall with a ...  
JP2005277868A
To provide a speaker device etc. having an attaching structure of a resin frame and a resin grill in which no looseness due to a change in environment such as temperature change is generated.The speaker device is provided with the resin ...  
JP2005269328A
To provide a loudspeaker apparatus adopting the support structure of a damper, whereby a contact or the like between a vibration system and a magnetic circuit system is prevented so as to prevent the occurrence of abnormal sound noise, w...  
JP2005269330A
To provide a loudspeaker apparatus capable of efficiently radiating heat produced in a voice coil or the like so as to prevent exfoliation or the like of an adhesive for fixing a connection member to various components of the loudspeaker...  
JP2005244380A
To provide an electroacoustic transducer capable of eliminating the need for connection works of conductors configuring a coil and being used for a two-terminal electroacoustic transducer or a three-terminal electroacoustic transducer.Co...  
JP2005244427A
To provide a unidirectional condenser microphone unit wherein howling is scarce.In the unidirectional condenser microphone unit, wherein a diaphragm 20 stretched to a support ring 21 and a fixed pole 30 supported by an insulation seat 50...  
JP2005236844A
To raise stiffness of an intermediate part of a frame which supports an armature at an end, maintaining a compact composition of an electroacoustic transducer of a balanced armature type.The composition is that a back end part of the arm...  
JP2005525762A
the variable resistor type electromagnetism based on the new principle which the present invention provides with high performance, a small size, and high reliability compared with the conventional technology -- it is related with a formu...  
JP2005223414A
To provide a speaker apparatus capable of being easily fitted to the inside of a structure or the like and from which a sufficient acoustic effect can be obtained.The speaker apparatus is provided with: a cylindrical outer yoke 11; a voi...  
JP2005223740A
To prevent deterioration of tone quality in an inverse cone type speaker system.In the speaker system 1, a conic shape cone paper 2 is attached to a frame 3 in a convex shape. A bobbin 8 with a voice coil 9 is fixed to the cone paper 2. ...  
JP2005525031A
Typically, the 動電型 speaker contains the diaphragm which has the conductor stuck on one of the surfaces. The diaphragm is attached to the frame. The conductor is connected to the power supply in order to supply current through the a...  
JP3680562B2
To provide a high-quality product which prevents damage and performance deterioration by a falling impact, relating to an electro-mechano-acoustic converter used mainly for portable telephones, or the like. This electro-mechano-acoustic ...  
JPWO2003081945A1
コイル又は磁石の変位をレコード溝の凹凸に 完全に追従させることができ、レコード盤に 記録された音声を忠実に再現することができ るピックアップ装置を提供することを課...  
JP2005192178A
To expand a space of a back chamber, to improve the response characteristic of sensitivity and a frequency, and to simplify processes to reduce process cost by integrating a first base for performing an insulating function by a conventio...  
JP2005176292A
To provide a speaker capable of converting an electrical signal into a sound signal effectively, having a long life, and capable of producing a large voice output.This speaker comprises at least, a bobbin provided with a through hole, a ...  
JP2005168034A
To improve the sound quality of an analog cartridge employing a metal magnet.Diffusion of the lines of magnetic force is suppressed by blocking only the outer part of a bundle of lines of magnetic force, jutting out of the metal magnet, ...  
JP2005167480A
To provide an on-plane sound collection microphone capable of altering the direction for leading out an output cable easily according to specification.A part 2 for connecting one end side of an output cable 3 for delivering a voice signa...  
JP3660557B2
To provide an electroacoustic transducer that eliminates the orientation in a circumferential direction when it is mounted onto a board of an external device without causing fluctuation in the acoustic characteristic and to provide a mou...  
JP3651472B2
To provide a speaker having improved its acoustic characteristics. An opening 15 provided in a frame 12 enables the insertion of a jig 24 for setting an inner peripheral portion of a suspension holder 13 at a regular position. As this re...  
JP2005123663A
To provide a speaker having improved its acoustic characteristics.An opening 15 provided in a frame 12 enables the insertion of a jig 24 for setting an inner peripheral portion of a suspension holder 13 at a regular position. As this res...  
JP2005087851A
To provide a vibrator typically generating mechanical vibration, capable of generating rolling vibration easy to be felt by the body without causing strain nor noises.This vibrator of the present invention is provided with a magnetic cir...  
JP2005077326A
To provide a vibration sensor capable of preventing the damage of a vibrating film electrode, while avoiding sensitivity deterioration, and enabling an excellent assembling work.This sensor is equipped with a fixed electrode 1, and the v...  
JP3631935B2
To provide an electroacoustic transducer that can obtain a proper sound pressure characteristic, without hindering vibration of an armature section. The electroacoustic transducer 1 has a housing 2, consisting of a top housing 4 and a bo...  
JP3602792B2  
JP3583262B2
To utilize an electromagnetic sound converter under serve environment such as being high/low temperature, high humidity, and much dust despite of a thin structural form be generating reproduced sound of sound or noise signals from a vibr...  
JP2004304694A
To provide a vibration speaker provided with a sound generating function and a vibration generating function that attains a low profile by integrating the sound generating function and the vibration generating function and prevents a deg...  
JP2004529767A
. The armature of the electromagnetism transducer extended through magnetic flux with the polarity extended between the pole faces of the permanent magnet which counters is caused by the shock. A buffer is given in order to restrict move...  
JP2004247812A
To provide an electroacoustic transducer capable of properly vibrating a diaphragm by eliminating variations in a gap between a coil and a magnet and to provide an electronic apparatus employing the same.The electric signal transducer 1 ...  
JP3556168B2
To provide a bone conduction loudspeaker that can suppress unnecessary vibration in a vibration system so as to prevent production of noise sound due to abnormal resonance, thereby fully improving the sound quality. The bone conduction l...  

Matches 401 - 450 out of 1,389