Patent application number | Description | Published |
20080212800 | Diaphragm for Speaker, Method for Producing Same, Speaker Using Such Diaphragm, and Apparatus Using Such Speaker - A diaphragm for a loudspeaker contains resin, aramid fibers, and an organic silicon compound binding the resin with the aramid fibers. By this structure, high elasticity and high internal loss as characteristics of the aramid fibers are maintained; flexibility in the setting of properties of the diaphragm is thus increased. Accordingly, a diaphragm securing humidity resistance reliability and strength, and having a superior appearance can be provided. | 09-04-2008 |
20100059309 | DIAPHRAGM FOR SPEAKER, FRAME FOR SPEAKER, DUST CAP FOR SPEAKER, SPEAKER AND APPARATUS USING THEM, AND METHOD FOR MANUFACTURING COMPONENT FOR SPEAKER - A speaker diaphragm is configured by a compound mixed with resin and bamboo fiber. The diaphragm satisfying the advantage of the bamboo fiber of high sound quality and a large degree of freedom in the setting of the characteristic value of the diaphragm and the advantage of the diaphragm made of a resin with improved humidity resistance reliability and strength, excellent external appearance, and enhanced productivity and dimension stability is obtained. | 03-11-2010 |
20100074463 | MATERIAL FOR SPEAKER DEVICE AND A SPEAKER DEVICE USING IT - A material for improving the sound pressure level at the bass reproduction limit of the present invention is composed of an activated carbon having a cumulative pore volume of 0.4 ml/g or more for the pores each having a radius of 50 angstroms or less. Preferably, this activated carbon has a cumulative pore volume of 0.1 ml/g or less for the pores each having a radius of 7 angstroms or less. In particular, when a sound pressure level improving material in which the activated carbon has a cumulative pore volume of 0.5 ml/g or more for the pores each having a radius of 18 angstroms or less is installed in a cabinet of a loudspeaker device, the material alleviates pressure fluctuations of a gas within the cabinet caused by vibration of a loudspeaker, and thus a very good bass reproduction effect is attained. Moreover, in the case where a sound pressure level improving material in which the activated carbon has a cumulative pore volume of 0.4 ml/g or more for the pores each having a radius of 18 to 50 angstroms is installed in the cabinet, a loudspeaker device having a good bass reproduction effect even in an atmosphere of high humidity is obtained. | 03-25-2010 |
20100150389 | SPEAKER, SPEAKER DEVICE USING THE SAME AND ELECTRONIC APPARATUS AND VEHICLE USING THE SPEAKER - According to the present invention, there is provided a speaker for use in audio/video apparatuses and a small-sized speaker device capable of realizing preferable reproduction a bass sounds. In order to attain this, in the present invention, a pressure adjusting body is coupled to a portion of a magnetic circuit or a frame, which is a component of a speaker unit, to constitute the speaker unit. The speaker unit is mounted to a small-sized cabinet to constitute a speaker device, which enables realization of preferable reproduction of bass sounds. | 06-17-2010 |
20100172533 | DIAPHRAGM FOR SPEAKER, SPEAKER USING THE DIAPHRAGM, AND SYSTEM USING THE SPEAKER - A loudspeaker diaphragm contains polylactic acid, and bamboo charcoal mixed in the polylactic acid. The diaphragm does not affect environment and provides a loudspeaker with high sound quality. | 07-08-2010 |
20110164764 | DIAPHRAGM FOR SPEAKER, SPEAKER USING THE DIAPHRAGM, ELECTRONIC DEVICE USING THE SPEAKER, AND SPEAKER-MOUNTED DEVICE - A speaker diaphragm containing resin and carbonized bamboo material with a large degree of flexibility in setting physical properties, moisture-proof reliability and strength secured, superior appearance, and productivity and dimensional stability increased, which allows making characteristics and sound highly accurately, and designing with great originality. | 07-07-2011 |
20120112382 | DIAPHRAGM FOR SPEAKER, FRAME FOR SPEAKER, DUST CAP FOR SPEAKER, SPEAKER AND APPARATUS USING THEM, AND METHOD FOR MANUFACTURING COMPONENT FOR SPEAKER - A speaker diaphragm is configured by a compound mixed with resin and bamboo fiber. The diaphragm satisfying the advantage of the bamboo fiber of high sound quality and a large degree of freedom in the setting of the characteristic value of the diaphragm and the advantage of the diaphragm made of a resin with improved humidity resistance reliability and strength, excellent external appearance, and enhanced productivity and dimension stability is obtained. | 05-10-2012 |
20120114149 | DIAPHRAGM FOR SPEAKER, FRAME FOR SPEAKER, DUST CAP FOR SPEAKER, SPEAKER AND APPARATUS USING THEM, AND METHOD FOR MANUFACTURING COMPONENT FOR SPEAKER - A speaker diaphragm is configured by a compound mixed with resin and bamboo fiber. The diaphragm satisfying the advantage of the bamboo fiber of high sound quality and a large degree of freedom in the setting of the characteristic value of the diaphragm and the advantage of the diaphragm made of a resin with improved humidity resistance reliability and strength, excellent external appearance, and enhanced productivity and dimension stability is obtained. | 05-10-2012 |
20120114165 | DIAPHRAGM FOR SPEAKER, FRAME FOR SPEAKER, DUST CAP FOR SPEAKER, SPEAKER AND APPARATUS USING THEM, AND METHOD FOR MANUFACTURING COMPONENT FOR SPEAKER - A speaker diaphragm is configured by a compound mixed with resin and bamboo fiber. The diaphragm satisfying the advantage of the bamboo fiber of high sound quality and a large degree of freedom in the setting of the characteristic value of the diaphragm and the advantage of the diaphragm made of a resin with improved humidity resistance reliability and strength, excellent external appearance, and enhanced productivity and dimension stability is obtained. | 05-10-2012 |