JPS5458412A - Head shell - Google Patents

Head shell

Info

Publication number
JPS5458412A
JPS5458412A JP12553377A JP12553377A JPS5458412A JP S5458412 A JPS5458412 A JP S5458412A JP 12553377 A JP12553377 A JP 12553377A JP 12553377 A JP12553377 A JP 12553377A JP S5458412 A JPS5458412 A JP S5458412A
Authority
JP
Japan
Prior art keywords
head shell
base
head
plasma
specivic
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP12553377A
Other languages
Japanese (ja)
Inventor
Koichi Azuma
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP12553377A priority Critical patent/JPS5458412A/en
Publication of JPS5458412A publication Critical patent/JPS5458412A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE: To facilitate production of head shells for mounting of pickup cartridges, make the same inexpensive and lighter in weigth, and yet increase their strength, rigidity, etc. and obviate the occurrence of partial resonances, etc. by using a plasma chemical vapor deposition process.
CONSTITUTION: A head shell base 8 such as Al provided with a connector mounting hole 10 is heated in a reaction furnace, whereby the head shell 2 which has been formed with an even boron layer 9 of more than 5000kh/mm2 in specivic modulus on the outside of the base 8 by mixed gases of BCl3 and H2 in plasma condition under reduced pressure is obtained
COPYRIGHT: (C)1979,JPO&Japio
JP12553377A 1977-10-18 1977-10-18 Head shell Pending JPS5458412A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12553377A JPS5458412A (en) 1977-10-18 1977-10-18 Head shell

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12553377A JPS5458412A (en) 1977-10-18 1977-10-18 Head shell

Publications (1)

Publication Number Publication Date
JPS5458412A true JPS5458412A (en) 1979-05-11

Family

ID=14912533

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12553377A Pending JPS5458412A (en) 1977-10-18 1977-10-18 Head shell

Country Status (1)

Country Link
JP (1) JPS5458412A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4913889A (en) * 1983-03-09 1990-04-03 Kashima Oil Company High strength high modulus carbon fibers
US4945616A (en) * 1989-04-26 1990-08-07 Morito Co., Ltd. Adjustable closure for overlapping parts

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4913889A (en) * 1983-03-09 1990-04-03 Kashima Oil Company High strength high modulus carbon fibers
US4945616A (en) * 1989-04-26 1990-08-07 Morito Co., Ltd. Adjustable closure for overlapping parts

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