Login| Sign Up| Help| Contact|

Patent Searching and Data


Matches 701 - 750 out of 1,388

Document Document Title
JPS5832398Y2  
JPS5830379Y2  
JPS5830798B2  
JPS5830799B2  
JPS58106998A
PURPOSE: To improve the assembling workability and check the stiffness of a diaphragm unit, by separating the diaphragm unit and a driving plate unit from each other and giving structures to these units so that these units are assembled ...  
JPS58106999A
PURPOSE: To make always the gap length between an armature and a yoke constant to stabilize the capacity, by piling up magnets and yokes on a supporting part of a member provided with the armature to constitute a yoke part. CONSTITUTION:...  
JPS58105697A  
JPS58104597A
PURPOSE: To attain small size and high sensitivity, by forming a side plate of a magnetic circuit constituted around a canti-lever type armature 8 vertical to the armature and driving the vicinity of a diaphragm via a drive pin. CONSTITU...  
JPS5899098A
PURPOSE: To prevent the lowering in the sensitivity of an electromagnetic acoustic converter of a small size used for a hearing aid, by forming an auxiliary magnetic circuit comprising a frame and a case for an outer circumference of a m...  
JPS5899099A
PURPOSE: To fix a frame and a diaphragm film, and the diaphragm film and a diaphragm respectively at the same time, by contacting a resin film on the upper surface of the heated film and the diaphragm, thermally melting the resin film on...  
JPS5881707U  
JPS5824555Y2  
JPS5824552Y2  
JPS5824556Y2  
JPS5824557Y2  
JPS5824558Y2  
JPS5875999A
PURPOSE: To make the winding material of a coil thick by providing two small magnets held at a specified interval having such polarity that they repel each other with a coil for generating a magnetic field in their common axial direction...  
JPS5821267Y2  
JPS5821324B2  
JPS5819919Y2  
JPS5868399A
PURPOSE: To transduce electric energy into motional energy efficiently by fixing a cantilever driving coil to a magnetic yield yoke in a VHD signal pickup device for information disks. CONSTITUTION: Cantilever driving coils 8a, 8b, and 9...  
JPS5819484Y2  
JPS5857196U  
JPS5854199U  
JPS5860900A  
JPS5859699A
PURPOSE: To realize a low resonance frequency and a high efficiency, by reducing the diameter without damaging the elasticity of the diaphragm and holding the magnetic coupling strong. CONSTITUTION: An electromagnetic electroacoustic tra...  
JPS5816399B2  
JPS5811158B2  
JPS5829299A
PURPOSE: To elevate power generation efficiency, to suppress deterioration of a characteristic due to a variation of stylus pressure, and also to make a magnet and a vibration system light in weight, by placing a pair of magnets, and yok...  
JPS5829298A
PURPOSE: To make a magnet and a vibration system light in weight, by placing yokes so as to place a plate-like armature of a cantilever rear end part between them and placing an inverted U-type magnet so as to step over the cantilever, b...  
JPS585276Y2  
JPS584319Y2  
JPS582518B2  
JPS586700A
PURPOSE: To reduce unevenness of sound pressure aproximately at a resonance point and to decrease a distortion factor, by using a printed substrate as the 1st diaphragm, sticking the circumference to a resonator by ultrasonic-wave weldin...  
JPS581021Y2  
JPS57202297U  
JPS57202298U  
JPS5754392Y2  
JPS57180299A  
JPS5750400B2  
JPS5748159Y2  
JPS57153400U  
JPS57152973U  
JPS57151099U  
JPS57146499U  
JPS57143796U  
JPS57143999A  
JPS57129600A
PURPOSE: To reduce the effective mass and to realize a flat and wide range of the frequency characteristics, by constituting an armature with an amorphous metal. CONSTITUTION: The yokes 12 and 13 are attached across a magnet 11. A cantil...  
JPS5737159B2  
JPS57126125A  

Matches 701 - 750 out of 1,388