JPS5270397A - Manufacturing process of high-molecular electret - Google Patents

Manufacturing process of high-molecular electret

Info

Publication number
JPS5270397A
JPS5270397A JP14721475A JP14721475A JPS5270397A JP S5270397 A JPS5270397 A JP S5270397A JP 14721475 A JP14721475 A JP 14721475A JP 14721475 A JP14721475 A JP 14721475A JP S5270397 A JPS5270397 A JP S5270397A
Authority
JP
Japan
Prior art keywords
manufacturing process
electret
molecular
molecular electret
specified
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.)
Granted
Application number
JP14721475A
Other languages
Japanese (ja)
Other versions
JPS5840328B2 (en
Inventor
Isao Sumita
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 JP14721475A priority Critical patent/JPS5840328B2/en
Publication of JPS5270397A publication Critical patent/JPS5270397A/en
Publication of JPS5840328B2 publication Critical patent/JPS5840328B2/en
Expired legal-status Critical Current

Links

Landscapes

  • Electrostatic, Electromagnetic, Magneto- Strictive, And Variable-Resistance Transducers (AREA)

Abstract

PURPOSE: To get an electret having a large surface charge density and good stability by polarizing a specified polarized high-molecular substance in a specified range of temperature.
COPYRIGHT: (C)1977,JPO&Japio
JP14721475A 1975-12-09 1975-12-09 Koubunshi Electret Noseizouhou Expired JPS5840328B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14721475A JPS5840328B2 (en) 1975-12-09 1975-12-09 Koubunshi Electret Noseizouhou

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14721475A JPS5840328B2 (en) 1975-12-09 1975-12-09 Koubunshi Electret Noseizouhou

Publications (2)

Publication Number Publication Date
JPS5270397A true JPS5270397A (en) 1977-06-11
JPS5840328B2 JPS5840328B2 (en) 1983-09-05

Family

ID=15425140

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14721475A Expired JPS5840328B2 (en) 1975-12-09 1975-12-09 Koubunshi Electret Noseizouhou

Country Status (1)

Country Link
JP (1) JPS5840328B2 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59128324U (en) * 1983-02-18 1984-08-29 株式会社不二越 Gear type honing tool
JPS6192527U (en) * 1984-11-22 1986-06-16

Also Published As

Publication number Publication date
JPS5840328B2 (en) 1983-09-05

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