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Patent Searching and Data


Matches 751 - 800 out of 1,370

Document Document Title
JPS5710159Y2  
JPS5733899A  
JPS5733900A
PURPOSE: To obtain a pickup cartridge having high efficiency, by mechanizing all the processes as a plane operation by a continuous assembling work, supplying the respective parts uniformly, and reducing the variations of its performance...  
JPS579560B2  
JPS5726987A
PURPOSE: To make stable the coupling state between an ear plug and an ear shell, by extending the ear plug to a direction with a slope to the oscillating direction of a diaphragm plate. CONSTITUTION: A diaphragm plate 1 is oscillated bas...  
JPS576880B2  
JPS5722796U  
JPS57500223A  
JPS5720408A
PURPOSE: To obtain a magnetic circuit which has small size, light weight, excellent frequency characteristic and high output voltage by melting Fe-Co-Si alloy containing Fe as main ingredient when forming a yoke forming the magnetic circ...  
JPS5714276A
PURPOSE: To allow the detection of oscillation through the output of an oscillation circuit changed with the oscillation of an oscillation plate, by locating a coil forming a resonance circuit in the oscillation circuit to an oscillation...  
JPS5714598U  
JPS56166697A
PURPOSE: To flatten sound pressure characteristics through reducing attenuation in a high frequency range and to decrease directivity, by coupling with a horn driver part a horn whose internal sectional area varies according to a specifi...  
JPS5654714Y2  
JPS56167699U  
JPS5651559B2  
JPS56153900A
PURPOSE: To reduce the magnetic loss very much, by winding the coil around the pole piece consisting of the round bar material directly to reduce the magnetic impedance between the pole piece and the coil. CONSTITUTION: The magnetic circ...  
JPS56160096U  
JPS5650553Y2  
JPS5647759B2  
JPS5647760B2  
JPS56143799A
PURPOSE: To detect a less distortion signal while widening the range by miniaturizing a vibration system by interposing signal detection coils at an interval between magnetic pole pieces projecting from both magnetic poles of a moving ma...  
JPS56141698A
PURPOSE: To sufficiently take a clearance between the surface of a record and the cartridge, and secure a vertical tracking angle, by providing no magnet nor coil on the surface of a record. CONSTITUTION: A moving magnet 14 which has bee...  
JPS56128797U  
JPS5638879Y2  
JPS56111598U  
JPS5696599A  
JPS5695190U  
JPS5690099U  
JPS5690098U  
JPS5630778B2  
JPS5687799U  
JPS5685995A
PURPOSE: To obtain a large magnetic flux variation and a very flat characteristic, by using a fixed magnet jointly, to make its constitution unique, and using an air core coil. CONSTITUTION: A moving magnet 3 is fixed to the base end of ...  
JPS5684100A
PURPOSE: To lighten a vibration system and to increase an output by arranging two E-shaped magnetic structures on the nonmagnetic substance armature of a moving magnet type pickup cartridge. CONSTITUTION: At the base end of cantilever 2,...  
JPS5683199A
PURPOSE: To make the weight of an entire cartridge light in weight, by the constitution of a magnet magnetized lengthwise a sensing lever so that it is located at the center of armature. CONSTITUTION: The magnet 1B demagnetized lengthwis...  
JPS5678300A
PURPOSE: To stabilize a mechanical strain and performance by improving the strength of a yoke and an assemblage by inserting a yoke end part wound with a coil into the concave part of the yoke for forming a magnetic gap between those yok...  
JPS5674600U  
JPS5669998A
PURPOSE: To improve various characteristics of a cartridge by constituting a coil piece block by using a ferrite, etc., with excellent high frequency characteristics while reducing reference lines and bonded layers in work and by obtaini...  
JPS5668394U  
JPS5665597A
PURPOSE: To obtain the cartridge without lowering in sensitivity and left and right unbalance, by providing three sets of moving magnets so that the magnetic axis of moving magnets is in parallel with the vertical and horizontal axes ort...  
JPS5661895A
PURPOSE: To prevent unbalance in characteristics between both right and left channels, by employing the structure where both channels are completely equal in magnetic path length and symmetric. CONSTITUTION: The vibration part consists o...  
JPS5658700U  
JPS5657590U  
JPS5657591U  
JPS5657593U  
JPS5657592U  
JPS5657594U  
JPS5656096A
PURPOSE: To improve frequency characteristics and to increase an output by providing a delta type magnetic core that has its top at a magnetic gap and by winding a couple of leg parts with coils whose winding diameter is less at the shor...  
JPS5656097A
PURPOSE: To reduce defectives and to improve frequency characteristics by specifying jointless cores and then by providng both leg parts of them with detection coils wound previsouly in separate bodies so that they will penetrate working...  
JPS5620760B1  
JPS5656297U  

Matches 751 - 800 out of 1,370