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Patent Searching and Data


Matches 451 - 500 out of 1,087

Document Document Title
JPH0761198B2  
JPH0761193B2  
JPH0718238Y2  
JPH0720317B2  
JPH0693800B2  
JPH0681200U
[Purpose] The moving coil type electromagnetic drive unit 3 is arranged in parallel with the diaphragm 6, and the noise caused by the resonance of the arm caused by connecting the vibration with the arm of the woofer speaker connected by...  
JPH06288849A
PURPOSE: To provide a vibration generator and a fail-safe pressure sensor which can generate a highly energetic output with the aid of the vibration generator when a pressure is lower than as specified. CONSTITUTION: An electromagnet 7 w...  
JPH0667037B2  
JPH0625111Y2  
JPH0585188U
[Purpose] The 6 parts of the exciting coil and the 7 parts of the magnet can be separated, and vibration can be generated without using a leaf spring. [Constitution] The sensory vibration pad device according to the present invention has...  
JPH05260595A
PURPOSE: To provide an armature converter which is very small-sized and has the copper loss suppressed. CONSTITUTION: An armature converter 62 is provided with permanent magnet means 26 and 28 which form a bias area mainly in a range bet...  
JPH0560318B2  
JPH05220155A
PURPOSE: To extend the life of a pressure pulse generating device with a method simple and advantageous in cost. CONSTITUTION: This device has a diaphragm 2 having at least one conductive area 2b, one side of which is opposed to an acous...  
JPH0533119Y2  
JPH0591592A
PURPOSE: To provide a sound reproduction system which shows flat frequency response characteristics in an operating frequency range and operates with extremely high efficiency. CONSTITUTION: A transducer which contains a core 11 formed o...  
JPH056811B2  
JPH055240B2
A stereo phonograph pick-up head or cutter has a slim elongated construction utilizing an elongated mount having connector pins at its rear end. Two elongated pole pieces fit into the mount, each having a socket at its rear end. Each coi...  
JPH053960B2  
JPH051198Y2  
JPH0448320B2
An electromagnetic transducer utilizes flat permanently magnetized plates made of magnetically hard ceramic materials having thicknesses substantially less than the dimensions across the faces thereof. Electric signals may be applied thr...  
JPH0446498A
PURPOSE: To enable thin structure and to reduce the number of parts by magnetizing magnets connected to each diaphragm respectively provided on one side and on the other side to the same polarity. CONSTITUTION: A frame 1 is formed by con...  
JPH0356520B2
An audio frequency electromechanical vibrator comprising a flat plate permanent magnet magnetized in a predetermined direction and a coil wound around the permanent magnet for crossing the direction of magnetization. The permanent magnet...  
JPH03184500A
PURPOSE: To more effectively suppress an external electromagnetic field by forming a magnetic shield by two halves of cup-like casing adjacent to the symmetrical face of the shield, connected as one unit along a connection face parallel ...  
JPH0336160Y2  
JPH0373099U  
JPH02274200A
PURPOSE: To provide a simple acoustic transducer at a low cost by providing a membrane moved by a flexible means over an entire range of a housing base and fixing the flexible means to an inner side of four side walls of a housing sectio...  
JPH02106793U  
JPH01307399A
PURPOSE: To obtain high acoustic effect by using a fine wire consisting of copper at ≥6N for the copper coil of a coil part for a cartridge. CONSTITUTION: The coil part of the cartridge for a record player is obtained, for example, by ...  
JPH0136760B2  
JPH0186397U  
JPH0182599U  
JPS646632Y2
The present invention is directed to a pickup cartridge used for reproducing an information recorded on a record disc, the pickup cartridge having a magnet, a stylus which engages a spiral groove on the record disc, a pole piece for form...  
JPS63187498U  
JPS6347320B2  
JPS63181599A
PURPOSE: To obtain a compact and highly efficient moving magnet type transducer by winding a coil on a magnetic core having a magnetic void and connecting a diaphragm to a movable magnet having magnetic pole parts which are mutually reve...  
JPS63111098U  
JPS6326600B2  
JPS6318240Y2  
JPS6322376B2  
JPS633278Y2  
JPS632196B2  
JPS6255359B2  
JPS6255358B2
A pickup cartridge comprises a magnetic circuit having an air gap, a coil wound on the magnetic circuit and a cantilever having a permanent magnet inserted in to the air gap. In this case, the magnetic circuit comprises a delta-shaped jo...  
JPS6253000B2  
JPS6247318B2
A sound producing device for watches comprising an electromagnetic exciting means having a coil and a permanent magnet, and first and second vibration plates disposed on opposite sides of the electromagnetic exciting means. The natural f...  
JPS62198300A
PURPOSE: To convert a low frequency signal of a large amplitude by reducing a distortion, by providing a cylindrical bobbin, a coil wound to the cylindrical bobbin, a ring magnet, a shaft fixed to the axial center of the ring magnet, res...  
JPS6233436Y2  
JPS62173601A
PURPOSE: To make noiseless reproducing possible by coating surfaces of a stylus tip and a cantilever with a conductive material and using a conductive adhesive. CONSTITUTION: Surfaces of a stylus tip 2 and a cantilever 1 are coated with ...  
JPS62163498A
PURPOSE: To obtain a transducer which is flat and small in size by providing a magnetic material for operating an electromagnetic force on a magnet, on a virtual plane being in an equal distance from two magnetic pole surface of the magn...  
JPS6220883Y2  

Matches 451 - 500 out of 1,087