SPEAKER

PURPOSE: To smooth the flow of air at the rear of a diaphragm to improve the tone quality with respect to a speaker used in various acoustic apparatus. CONSTITUTION: A groove 1b which has 2mm or longer width and 0.5mm or longer depth toward the center is provided at least in one position on the oute...

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Hauptverfasser:	YANO HIROSHI, SANO KOJI, KAGITANI SEISAKU
Format:	Patent
Sprache:	eng
Schlagworte:	DEAF-AID SETS ELECTRIC COMMUNICATION TECHNIQUE ELECTRICITY LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKEACOUSTIC ELECTROMECHANICAL TRANSDUCERS PUBLIC ADDRESS SYSTEMS
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creator	YANO HIROSHI SANO KOJI KAGITANI SEISAKU
description	PURPOSE: To smooth the flow of air at the rear of a diaphragm to improve the tone quality with respect to a speaker used in various acoustic apparatus. CONSTITUTION: A groove 1b which has 2mm or longer width and 0.5mm or longer depth toward the center is provided at least in one position on the outer peripheral face of a center pole 1a of a lower plate 1 constituting a magnetic circuit. Thus, the flow of air in a space part 10 on the rear side of a dust cap is smoothed to smoothly move the dust cap 9 and a diaphragm 7, and as the result, noise and distortion of the speaker are reduced to improve the tone quality of the speaker.
format	Patent
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CONSTITUTION: A groove 1b which has 2mm or longer width and 0.5mm or longer depth toward the center is provided at least in one position on the outer peripheral face of a center pole 1a of a lower plate 1 constituting a magnetic circuit. Thus, the flow of air in a space part 10 on the rear side of a dust cap is smoothed to smoothly move the dust cap 9 and a diaphragm 7, and as the result, noise and distortion of the speaker are reduced to improve the tone quality of the speaker.</description><edition>6</edition><language>eng</language><subject>DEAF-AID SETS ; ELECTRIC COMMUNICATION TECHNIQUE ; ELECTRICITY ; LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKEACOUSTIC ELECTROMECHANICAL TRANSDUCERS ; PUBLIC ADDRESS SYSTEMS</subject><creationdate>1996</creationdate><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=19961101&DB=EPODOC&CC=JP&NR=H08289394A$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,776,881,25542,76289</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=19961101&DB=EPODOC&CC=JP&NR=H08289394A$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>YANO HIROSHI</creatorcontrib><creatorcontrib>SANO KOJI</creatorcontrib><creatorcontrib>KAGITANI SEISAKU</creatorcontrib><title>SPEAKER</title><description>PURPOSE: To smooth the flow of air at the rear of a diaphragm to improve the tone quality with respect to a speaker used in various acoustic apparatus. CONSTITUTION: A groove 1b which has 2mm or longer width and 0.5mm or longer depth toward the center is provided at least in one position on the outer peripheral face of a center pole 1a of a lower plate 1 constituting a magnetic circuit. Thus, the flow of air in a space part 10 on the rear side of a dust cap is smoothed to smoothly move the dust cap 9 and a diaphragm 7, and as the result, noise and distortion of the speaker are reduced to improve the tone quality of the speaker.</description><subject>DEAF-AID SETS</subject><subject>ELECTRIC COMMUNICATION TECHNIQUE</subject><subject>ELECTRICITY</subject><subject>LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKEACOUSTIC ELECTROMECHANICAL TRANSDUCERS</subject><subject>PUBLIC ADDRESS SYSTEMS</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>1996</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNrjZGAPDnB19HYN4mFgTUvMKU7lhdLcDIpuriHOHrqpBfnxqcUFicmpeakl8V4BHgYWRhaWxpYmjsbEqAEADywbUQ</recordid><startdate>19961101</startdate><enddate>19961101</enddate><creator>YANO HIROSHI</creator><creator>SANO KOJI</creator><creator>KAGITANI SEISAKU</creator><scope>EVB</scope></search><sort><creationdate>19961101</creationdate><title>SPEAKER</title><author>YANO HIROSHI ; SANO KOJI ; KAGITANI SEISAKU</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_JPH08289394A3</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>eng</language><creationdate>1996</creationdate><topic>DEAF-AID SETS</topic><topic>ELECTRIC COMMUNICATION TECHNIQUE</topic><topic>ELECTRICITY</topic><topic>LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKEACOUSTIC ELECTROMECHANICAL TRANSDUCERS</topic><topic>PUBLIC ADDRESS SYSTEMS</topic><toplevel>online_resources</toplevel><creatorcontrib>YANO HIROSHI</creatorcontrib><creatorcontrib>SANO KOJI</creatorcontrib><creatorcontrib>KAGITANI SEISAKU</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>YANO HIROSHI</au><au>SANO KOJI</au><au>KAGITANI SEISAKU</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>SPEAKER</title><date>1996-11-01</date><risdate>1996</risdate><abstract>PURPOSE: To smooth the flow of air at the rear of a diaphragm to improve the tone quality with respect to a speaker used in various acoustic apparatus. CONSTITUTION: A groove 1b which has 2mm or longer width and 0.5mm or longer depth toward the center is provided at least in one position on the outer peripheral face of a center pole 1a of a lower plate 1 constituting a magnetic circuit. Thus, the flow of air in a space part 10 on the rear side of a dust cap is smoothed to smoothly move the dust cap 9 and a diaphragm 7, and as the result, noise and distortion of the speaker are reduced to improve the tone quality of the speaker.</abstract><edition>6</edition><oa>free_for_read</oa></addata></record>
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subjects	DEAF-AID SETS ELECTRIC COMMUNICATION TECHNIQUE ELECTRICITY LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKEACOUSTIC ELECTROMECHANICAL TRANSDUCERS PUBLIC ADDRESS SYSTEMS
title	SPEAKER
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