发明授权
- 专利标题： Heater substrate, alkali metal cell unit and atomic oscillator
- 专利标题（中）： 加热基板，碱金属电池单元和原子振荡器
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申请号： US14452648申请日： 2014-08-06
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公开(公告)号： US09112518B2公开(公告)日： 2015-08-18
- 发明人: Kazuhiko Adachi , Kazuhiro Harasaka , Shunichi Sato
- 申请人： Kazuhiko Adachi , Kazuhiro Harasaka , Shunichi Sato
- 申请人地址： JP Tokyo
- 专利权人： RICOH COMPANY, LTD.
- 当前专利权人： RICOH COMPANY, LTD.
- 当前专利权人地址： JP Tokyo
- 代理机构： Cooper & Dunham LLP
- 优先权： JP2013-170552 20130820; JP2014-121562 20140612
- 主分类号： H03L7/26
- IPC分类号： H03L7/26 ; G04F5/14 ; H05B3/26
摘要：
A heater substrate for heating an alkali metal cell including an alkali metal includes a first heater wiring formed in a region surrounding an alkali metal encapsulating part in which the alkali metal is encapsulated; a second heater wiring formed in the region surrounding the alkali metal encapsulating part and inside the first heater wiring; and a third heater wiring formed outside the first heater wiring. A first electric current flowing in the first heater wiring is divided into a second electric current flowing in the second heater wiring and a third electric current flowing in the third heater wiring. A direction of the first electric current is opposite to a direction of the second electric current and a direction of the third electric current.
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