Hitachi Maxell, Limited

Maxell, Ltd.

Vehicle Energy Japan Inc.

Hideki Shinohara

Koichi Ozaki

Mitsunobu Suzuishi

Takeshi Sato

Akinori Tada

A problem of the present invention is to provide a rectangular secondary battery in which heat generation of a current collecting plate is suppressed. A rectangular secondary battery of the present invention which solves the above-described problem includes: a flat wound group which is obtained by winding a positive electrode and has a positive electrode metal foil-exposed portion; a battery can which stores the wound group; a battery lid which seals the battery can; a positive electrode external terminal which is provided on the battery lid; and a positive electrode current collecting plate which electrically connects the external terminal and the wound group. The positive electrode current collecting plate includes a fixed portion fixed on the battery lid, a welded portion welded on the metal foil-exposed portion of the wound group, and a joint connecting the fixed portion and the welded portion. Further, in the current collecting plate, the joint has a width portion equal to or less than widths of the fixed portion and the welded portion and a thickness portion thicker than the fixed portion or the welded portion.

Rectangular secondary battery

There are provided a lens member, a method of manufacturing the lens member, a communication module, a lens array, and a light-source module, the lens member including a ready-made glass lens added with a mounting portion having a reference face as a plane for reference when the glass lens is mounted on a substrate. A lens member includes a glass ball lens to which sphericity processing has been previously performed, and a resin mounting portion disposed on the glass ball lens. The mounting portion is molded by flowing the resin in a flowable state into a die including the glass ball lens disposed therein. The mounting portion includes a reference face that abuts on a mounting face in a case where the glass ball lens is surface-mounted, provided thereto.

Lens member, method of manufacturing the same, communication module, lens array, and light-source module

There are provided a lens member, a method of manufacturing the lens member, a communication module, a lens array, and a light-source module, the lens member including a ready-made glass lens added with a mounting portion having a reference face as a plane for reference when the glass lens is mounted on a substrate. A lens member includes a glass ball lens to which sphericity processing has been previously performed, and a resin mounting portiondisposed on the glass ball lens. The mounting portion is molded by flowing the resin in a flowable state into a die including the glass ball lens disposed therein. The mounting portion includes a reference face that abuts on a mounting face in a case where the glass ball lens is surface-mounted, provided thereto.

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Ibaraki, Japan

Hideki Shinohara