The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 28, 2020
Filed:
Dec. 19, 2018
Seiko Epson Corporation, Tokyo, JP;
Noritaka Ide, Shiojiri, JP;
Seiko Epson Corporation, , JP;
Abstract
An atomic oscillator includes a light source; an atomic cell in which alkali metal atoms are contained and on which light that is emitted from the light source is incident; a first coil that applies a magnetic field to the atomic cell; a first shield that contains the atomic cell and the first coil and shields a magnetic field; a second shield that includes a first member having a recess and a second member, containing the light source and the first shield in a space which is formed by the first member and the second member, and the second shield shields the magnetic field; and a second coil that generates a magnetic field passing through an opening of the recess.