JPS5349213A - Electronic clock - Google Patents

Electronic clock

Info

Publication number
JPS5349213A
JPS5349213A JP12400176A JP12400176A JPS5349213A JP S5349213 A JPS5349213 A JP S5349213A JP 12400176 A JP12400176 A JP 12400176A JP 12400176 A JP12400176 A JP 12400176A JP S5349213 A JPS5349213 A JP S5349213A
Authority
JP
Japan
Prior art keywords
electronic clock
rotorcan
oillessness
boride
nitride
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
JP12400176A
Other languages
Japanese (ja)
Inventor
Itaru Okonogi
Toshiharu Suzuki
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.)
Seiko Epson Corp
Suwa Seikosha KK
Original Assignee
Seiko Epson Corp
Suwa Seikosha KK
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 Seiko Epson Corp, Suwa Seikosha KK filed Critical Seiko Epson Corp
Priority to JP12400176A priority Critical patent/JPS5349213A/en
Publication of JPS5349213A publication Critical patent/JPS5349213A/en
Pending legal-status Critical Current

Links

Landscapes

  • Electromechanical Clocks (AREA)
  • Permanent Field Magnets Of Synchronous Machinery (AREA)

Abstract

PURPOSE: To enable a clock used in oillessness, by forming a hardened layer of above Hv950 in a thickness more than 1μ with the surface treatment such as nitride, boride, etc. processed on the surfaces of the bearing part of the rotorcan made of metal alloy and the contacting shaft or the stem.
COPYRIGHT: (C)1978,JPO&Japio
JP12400176A 1976-10-15 1976-10-15 Electronic clock Pending JPS5349213A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12400176A JPS5349213A (en) 1976-10-15 1976-10-15 Electronic clock

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12400176A JPS5349213A (en) 1976-10-15 1976-10-15 Electronic clock

Publications (1)

Publication Number Publication Date
JPS5349213A true JPS5349213A (en) 1978-05-04

Family

ID=14874573

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12400176A Pending JPS5349213A (en) 1976-10-15 1976-10-15 Electronic clock

Country Status (1)

Country Link
JP (1) JPS5349213A (en)

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