发明名称 ELEKTROMAGNETISCHER AUFNAHME- UND WIEDERGABEKOPF FUER BANDAUFZEICHNUNGEN
摘要 An electromagnetic transducer head for a tape recording and reproducing system comprises a pair of generally U-shaped single crystalline ferrite cores having their first legs secured together and their second legs spaced from each other to form a magnetic gap in which a wafer of glossy material is provided. Each of the ferrite cores has crystal planes (211), (110) and (111). The magnetic gap is aligned to the crystal plane (111) and the second legs of the cores are shaped to provide a tape contact surface which is parallel with the crystal plane (211). The crystal plane (110) is at right angles to the planes (211) and (111) and forms a passage for magnetic flux. The crystallographic axis <110> of each core extends at an angle to the magnetic gap so as to meet the axis <110> of the other core at a point aligned with the tape contact face.
申请公布号 DE2900916(A1) 申请公布日期 1979.10.04
申请号 DE19792900916 申请日期 1979.01.11
申请人 VICTOR COMPANY OF JAPAN,LTD. 发明人 HIRAI,SHIRO;NEI,ATSUSHI;SAKAI,KUNIHIDE
分类号 G11B5/127;G11B5/133;G11B5/193;(IPC1-7):G11B5/22 主分类号 G11B5/127
代理机构 代理人
主权项
地址