发明名称 Phonograph cartridge with very hard metal ceramic frame
摘要 A pick up cartridge which comprises a cantilever at the end of which is mounted, a stylus a generating mechanism which is fixed near the supporting point of the cantilever, a pair of yokes which give a magnetic field to the generating mechanism, and a holder which holds the yokes directly and/or indirectly, wherein at least a part of said holder is made of very hard metal ceramic material. Viscoelastic material is also used to reduce harmful vibrations in the cartridge.
申请公布号 US4218591(A) 申请公布日期 1980.08.19
申请号 US19780948431 申请日期 1978.10.04
申请人 IWASAWA, TADASHI 发明人 IWASAWA, TADASHI
分类号 H04R1/18;H04R9/16;(IPC1-7):H04R9/12;H04R11/08 主分类号 H04R1/18
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