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Hideo Yuasa
Hideo Yuasa, Osaka JP
| Patent application number | Description | Published |
|---|---|---|
| 20100316249 | SPEAKER - The invention provides a speaker in which a damper is effectively added without impairing the thinness of the speaker, and which, although the speaker is thin and small, exhibits high withstand input and high output power performances. A damper ( | 12-16-2010 |
| 20110075880 | SPEAKER DAMPER AND SPEAKER INCLUDING THE SAME - The invention provides a speaker damper ( | 03-31-2011 |
Hideo Yuasa, Qingdao City CN
| Patent application number | Description | Published |
|---|---|---|
| 20090268930 | ELECTRET CONDENSER MICROPHONE - The present invention provides an electret condenser microphone including a diaphragm, a frame adapted to affix the diaphragm to, and a backplate positionable inside the frame and opposite the diaphragm with a space reserved therebetween. | 10-29-2009 |
| 20090304225 | DOME-SHAPED DIAPHRAGM AND LOUDSPEAKER USING THE SAME - The present invention provides a dome-shaped diaphragm fabricated based on a film base of polyethylene terephthalate resin film. The diaphragm includes a first vibrating part of a dome shape or a flat shape, and a second vibrating part of an annular shape. The second vibrating part includes a peripheral portion of the film base provided around a central portion of the film base. The first vibrating part includes the central portion of the film base, a thermosensitive adhesive resin film, provided on the central portion, and a fiber sheet made of a woven fabric using carbon fiber or an embossed nonwoven fabric. The fiber sheet is layered over the central portion with the thermosensitive adhesive resin film interposed therebetween. | 12-10-2009 |
Hideo Yuasa, Qingdao-City JP
| Patent application number | Description | Published |
|---|---|---|
| 20090296978 | Speaker - The invention relates to a small speaker. A speaker | 12-03-2009 |
| 20090296979 | Speaker - The invention provides a speaker comprising: a magnetic circuit | 12-03-2009 |
Hideo Yuasa, Shandong CN
| Patent application number | Description | Published |
|---|---|---|
| 20090285439 | Electroacoustic transducing device - According to the invention, in an electroacoustic transducing device comprising: a magnetic circuit | 11-19-2009 |
| 20090285440 | Electroacoustic tranducing device - In an electroacoustic transducing device having: a magnetic circuit | 11-19-2009 |
| 20110123061 | ELECTROACOUSTIC TRANSDUCING DEVICE - A yoke-integral frame is formed by a simple pressing process, and the numbers of components and production steps of an electroacoustic transducing device are reduced, thereby improving the productivity. | 05-26-2011 |