This section of the article discusses the development of aluminum products in Japan over a 10-year period, focusing on changes in demand patterns and technological advancements. The analysis is based on data from the Light Metal Association, which shows that the demand for aluminum in civil engineering and construction increased significantly during this period, followed by transportation, power, and food-related sectors. The growth rates for civil engineering and food were particularly high, while the demand for household goods and electrical communication products declined. Key developments include the construction of the first all-aluminum alloy bridge in Japan, the introduction of aluminum alloy in various vehicles, and the use of aluminum in shipbuilding and nuclear reactor components. The article also highlights the introduction of new aluminum products, such as aluminum windows, doors, and building materials, and the use of aluminum in refrigeration and freezing equipment due to its excellent thermal conductivity and corrosion resistance. The section concludes with a reflection on the limited number of product development reports published in the Light Metal Journal, suggesting that more detailed and technical information is often not publicly available due to confidentiality or the nature of the development process. Despite this, the journal continues to publish a variety of research and development reports, contributing to the advancement of light metal technology in Japan.This section of the article discusses the development of aluminum products in Japan over a 10-year period, focusing on changes in demand patterns and technological advancements. The analysis is based on data from the Light Metal Association, which shows that the demand for aluminum in civil engineering and construction increased significantly during this period, followed by transportation, power, and food-related sectors. The growth rates for civil engineering and food were particularly high, while the demand for household goods and electrical communication products declined. Key developments include the construction of the first all-aluminum alloy bridge in Japan, the introduction of aluminum alloy in various vehicles, and the use of aluminum in shipbuilding and nuclear reactor components. The article also highlights the introduction of new aluminum products, such as aluminum windows, doors, and building materials, and the use of aluminum in refrigeration and freezing equipment due to its excellent thermal conductivity and corrosion resistance. The section concludes with a reflection on the limited number of product development reports published in the Light Metal Journal, suggesting that more detailed and technical information is often not publicly available due to confidentiality or the nature of the development process. Despite this, the journal continues to publish a variety of research and development reports, contributing to the advancement of light metal technology in Japan.