Abstract: A cell assembly (20) is formed by arranging an electrode body and electrolyte in an external case (12) having a through hole (41). A laser is applied to an annular portion (formed by Al or Al-based alloy) surrounding an opening end (41A) of the through hole (41) toward outside the case so as to form a welded base (45). A sealing film (54) is welded to the surface of the welded base directly or via a base film (52) welded in advance, so as to temporarily seal the through hole (41). The cell assembly (20) in the temporarily sealed state is subjected to initial charge and then a hole is opened through the film (54) so as to form a gas discharge passage for communication between inside and outside of the case (12), thereby discharging an excessive gas from the case (12) outside.

Abstract: A battery is equipped with a case (200) in which a fill opening (aperture) (201) is formed and a sealing cap (210), which closes the fill opening (201) formed in the case (200). The sealing cap (210) is formed of a thin plate that covers the fill opening (201) in the case (200), the circumferential edge (211) of the sealing cap (210) is bonded to the case (200), and the center (212) of the sealing cap (210) is bent from the circumferential edge (211) and bulges up toward the outside of the case (200). In addition, a chamfer (213) is applied at the bent corner of the sealing cap (210).

Abstract: A sealed battery includes a battery case with a liquid inlet, a power generating element in the case, a lid member closing the liquid inlet and having a peripheral edge welded to the case over the entire circumference, a circular groove in the outer surface of the case and around the entire periphery of the liquid inlet, a peripheral portion provided over the entire periphery of a portion in the back surface of the lid member facing the liquid inlet, and a protrusion partially placed around the liquid inlet between the circular groove and the peripheral portion to form a clearance between the circular groove and the peripheral portion. The space facing the inner surface in a portion melted during welding between the peripheral edge and the case is continuous to the liquid inlet through a clearance formed by the protrusion between the circular groove and the peripheral portion.

Abstract: A gasket arranged between two sealed subject surfaces includes a plurality of segments. A recess is arranged in one of the two sealed subject surfaces at a portion corresponding to a clearance between adjacent segments. A seal is filled in the recess and deformed in accordance with the shape of the clearance between the segments.

Abstract: A sealed battery includes a battery case formed with a liquid inlet, a power generating element contained in the battery case, and a lid member closing the liquid inlet, the peripheral edge of the lid member being welded to the battery case over the entire circumference. The battery further includes a circular groove provided in the outer surface of the battery case and around the entire periphery of the liquid inlet to face the back surface of the lid member, a peripheral portion provided over the entire periphery of a portion in the back surface of the lid member facing the liquid inlet to face the circular groove, and a protrusion partially placed around the liquid inlet between the circular groove and the peripheral portion to form a clearance between the circular groove and the peripheral portion.

Abstract: A battery is equipped with a case (200) in which a fill opening (aperture) (201) is formed and a sealing cap (210), which closes the fill opening (201) formed in the case (200). The sealing cap (210) is formed of a thin plate that covers the fill opening (201) in the case (200), the circumferential edge (211) of the sealing cap (210) is bonded to the case (200), and the center (212) of the sealing cap (210) is bent from the circumferential edge (211) and bulges up toward the outside of the case (200). In addition, a chamfer (213) is applied at the bent corner of the sealing cap (210).

Abstract: A cell assembly (20) is formed by arranging an electrode body and electrolyte in an external case (12) having a through hole (41). A laser is applied to an annular portion (formed by Al or Al-based alloy) surrounding an opening end (41A) of the through hole (41) toward outside the case so as to form a welded base (45). A sealing film (54) is welded to the surface of the welded base directly or via a base film (52) welded in advance, so as to temporarily seal the through hole (41). The cell assembly (20) in the temporarily sealed state is subjected to initial charge and then a hole is opened through the film (54) so as to form a gas discharge passage for communication between inside and outside of the case (12), thereby discharging an excessive gas from the case (12) outside.

Abstract: A cartridge includes a case member (500) and a shutter member (100). The case member (500) includes a upper case section (505) and a lowercase section (506). A step portion (507) is formed at a boundary (508) between the upper case section (505) and the lower case section (506). The upper case section (505) includes a shutter pressing section (517) including a plurality of eaves sections (510). Each of the plurality of eaves sections (510) is configured to engage with the eaves engagement section (104) of the shutter member (100). At least two of the plurality of eaves sections (510) are located spaced apart from each other by a predetermined distance (519). The lower case section (505) includes a connection portion (520). The connection portion (520) is connected to the step portion (507) at a location between the at least two eaves sections (510), which are located spaced apart from each other by the predetermined distance (519), of the plurality of eaves sections (510).

Abstract: The shutter member (1) is a shutter member used in a cartridge having a case member. The case member includes a medium storage section for storing an information medium having an information layer and a window section configured to allow at least a head to be inserted. The head is used to perform a recording operation or a reproduction operation for the information layer. The shutter member (1) includes a base member (2) operable to slide along a sidewall of the case member and a plate member (3) engaged with the base member (2). The plate member (3) is operable to open/close the window section of the case member in accordance with a sliding motion of the base member (2). The base member (2) and the plate member (3) are engaged with each other such that the plate member (3) can be removed from the base member (2).

Abstract: A cartridge includes a case member (500) and a shutter member (100). The case member (500) includes a upper case section (505) and a lowercase section (506). A step portion (507) is formed at a boundary (508) between the upper case section (505) and the lower case section (506). The upper case section (505) includes a shutter pressing section (517) including a plurality of eaves sections (510). Each of the plurality of eaves sections (510) is configured to engage with the eaves engagement section (104) of the shutter member (100). At least two of the plurality of eaves sections (510) are located spaced apart from each other by a predetermined distance (519). The lower case section (505) includes a connection portion (520). The connection portion (520) is connected to the step portion (507) at a location between the at least two eaves sections (510), which are located spaced apart from each other by the predetermined distance (519), of the plurality of eaves sections (510).

Abstract: A disk cartridge includes a cartridge body and a lid. The cartridge body includes: first and second principal surfaces opposed to each other; a storage space to store a disklike data storage medium; windows cut through the first and second principal surfaces to partially expose the data storage medium in the storage space; an opening for removing the data storage medium from the storage space; and write-protect indicator holes cut through the first and second principal surfaces to prohibit writing on the data storage medium stored. The lid is provided to cover and uncover the opening of the cartridge body. The cartridge body is shaped such that both of the first and second principal surfaces can be opposed to a pickup of an optical disk drive when the cartridge is loaded into the drive.

Abstract: The shutter member (1) is a shutter member used in a cartridge having a case member. The case member includes a medium storage section for storing an information medium having an information layer and a window section configured to allow at least a head to be inserted. The head is used to perform a recording operation or a reproduction operation for the information layer. The shutter member (1) includes a base member (2) operable to slide along a sidewall of the case member and a plate member (3) engaged with the base member (2). The plate member (3) is operable to open/close the window section of the case member in accordance with a sliding motion of the base member (2). The base member (2) and the plate member (3) are engaged with each other such that the plate member (3) can be removed from the base member (2).