Patent ID: 8821618

Claim:
A gas-adsorbing device comprising: a cylindrical metal container comprising an activated gas-adsorbing member in an interior of the container, the interior of the container being depressurized, the container having an opening portion on a first end and a sealed end portion on a second end; and a sealing member that seals the opening portion, wherein the container is provided with a narrow portion at a position closer to the opening portion than the gas-adsorbing member, the narrow portion forming a gap having a predetermined width inside the container, wherein the sealing member seals the gap, wherein the material of the sealing member is mainly composed of a material selected from the group consisting of a metal oxide, a silicon oxide and an aluminum solder, wherein when the material of the sealing member is the metal oxide or the silicon oxide, a softening point of the sealing member is lower than a melting point of a metal of the container and higher than an activating temperature of the gas-adsorbing member, and wherein when the material of the sealing member is the aluminum solder, a melting point of the sealing member is lower than a melting point of a metal of the container and higher than an activating temperature of the gas-adsorbing member.