Panasonic Intellectual Property Management Co., Ltd.

Isel Co., Ltd.

Tadashi Nishimura

Naohiro Toda

Hiroki Noguchi

Noboru Mochizuki

Shinsuke Nishioka

Toshikazu Kawashima

A method for manufacturing a structure in which an edge portion of the structure formed by stacking a plurality of members is friction stir welded. The manufacturing method includes: a welding step of forming a friction stir welded portion by bringing a friction stir welding tool from a side of a surface of a member on one side into contact with a superposition portion of works in which the members are stacked while rotating the friction stir welding tool; and a cutting step of cutting the friction stir welded portion, and in each of two or more works produced by the cutting, a welded portion of the edge portion of the structure is formed with the cut friction stir welded portion.

Method for manufacturing structure and structure

A lighting system includes a lighting load and a lighting control device. The lighting control device is configured to adjust a light output of the lighting load to a first light output corresponding to a first correlated color temperature and a first illuminance in a first time slot, and to decrease the light output of the lighting load up to a second light output corresponding to a second correlated color temperature and a second illuminance with the passage of time in a second time slot after the first time slot.

Lighting system and lighting control device equipped for the lighting system

Growing community of inventors

Osaka, Japan

Tadashi Nishimura