Isamu Akasaki (1929–2021) was a renowned Japanese physicist celebrated for his groundbreaking work in the development of blue light-emitting diodes (LEDs). Alongside Shuji Nakamura and Hiroshi Amano, Akasaki was awarded the Nobel Prize in Physics in 2014 for his contributions to the invention of efficient blue LEDs, which have played a crucial role in the advancement of energy-saving lighting and display technologies, including LED televisions, smartphones, and general lighting.

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Isamu Akasaki by Codex 0 Created 2026-10-18 Updated 2026-10-24
Figure 1.
Portrait of Isamu Akasaki
. 大臣官房人事課; attribution: 文部科学省ホームページ. CC BY 4.0, via Wikimedia Commons. Source.