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:
Dec. 01, 2015
Filed:
Nov. 18, 2013
Kazuhiro Harasaka, Miyagi, JP;
Kazuhiko Adachi, Miyagi, JP;
Hiroyoshi Shouji, Miyagi, JP;
Akihiro Itoh, Miyagi, JP;
Shunichi Sato, Miyagi, JP;
Shinji Satoh, Miyagi, JP;
Kazuhiro Harasaka, Miyagi, JP;
Kazuhiko Adachi, Miyagi, JP;
Hiroyoshi Shouji, Miyagi, JP;
Akihiro Itoh, Miyagi, JP;
Shunichi Sato, Miyagi, JP;
Shinji Satoh, Miyagi, JP;
RICOH COMPANY, LTD., Tokyo, JP;
Abstract
An alkali metal cell is disclosed, including a substrate in which is formed an opening which penetrates from one face to the other face thereof; a first transparent substrate bonded to the other face of the substrate; and a second transparent substrate bonded to the one face of the substrate, wherein an alkali metal is sealed into a space surrounded by the first transparent substrate and the second transparent substrate in the opening of the substrate, wherein, in the substrate and the second transparent substrate, the space is enclosed by a bonding between a first bonding metal layer formed by a first bonding metal and a second bonding metal layer formed by a second bonding metal, and wherein the second bonding metal layer has a bonding temperature higher than that of the first bonding metal layer.