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:
Apr. 12, 2016
Filed:
Nov. 18, 2011
Yudai Kamada, Tokyo, JP;
Taro Osabe, Tokyo, JP;
Seiichi Suzuki, Tokyo, JP;
Akihiko Kandori, Tokyo, JP;
Ryuzo Kawabata, Tokyo, JP;
Yudai Kamada, Tokyo, JP;
Taro Osabe, Tokyo, JP;
Seiichi Suzuki, Tokyo, JP;
Akihiko Kandori, Tokyo, JP;
Ryuzo Kawabata, Tokyo, JP;
HITACHI, LTD., Tokyo, JP;
Abstract
In order to provide a magnetic field measuring apparatus facilitating the pressure control in a gas cell, or capable of inspecting the internal pressure of the gas cell without using any special process, the magnetic field measuring apparatus is configured such that a process layer of the magnetic field measuring apparatus has such a structure that includes a first hollow portion and a second hollow portion provided opposed to first hollow portion with a first isolation wall interposed therebetween. Alternatively, a method for manufacturing the magnetic field measuring apparatus includes breaking the first isolation wall after generating alkali metal (FIG.and FIG.).